Nick Lewycky | d489edf | 2012-02-25 07:20:06 +0000 | [diff] [blame] | 1 | //===-- Verifier.cpp - Implement the Module Verifier -----------------------==// |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 2 | // |
John Criswell | 482202a | 2003-10-20 19:43:21 +0000 | [diff] [blame] | 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | f3ebc3f | 2007-12-29 20:36:04 +0000 | [diff] [blame] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 7 | // |
John Criswell | 482202a | 2003-10-20 19:43:21 +0000 | [diff] [blame] | 8 | //===----------------------------------------------------------------------===// |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 9 | // |
Chris Lattner | 3e6e3e6 | 2002-03-29 19:06:18 +0000 | [diff] [blame] | 10 | // This file defines the function verifier interface, that can be used for some |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 11 | // sanity checking of input to the system. |
| 12 | // |
Misha Brukman | 1c9de46 | 2004-06-24 21:47:35 +0000 | [diff] [blame] | 13 | // Note that this does not provide full `Java style' security and verifications, |
| 14 | // instead it just tries to ensure that code is well-formed. |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 15 | // |
Misha Brukman | 1c9de46 | 2004-06-24 21:47:35 +0000 | [diff] [blame] | 16 | // * Both of a binary operator's parameters are of the same type |
Chris Lattner | d46bb6e | 2002-04-24 19:12:21 +0000 | [diff] [blame] | 17 | // * Verify that the indices of mem access instructions match other operands |
Misha Brukman | 1c9de46 | 2004-06-24 21:47:35 +0000 | [diff] [blame] | 18 | // * Verify that arithmetic and other things are only performed on first-class |
Chris Lattner | 8e72d6f | 2002-08-02 17:37:08 +0000 | [diff] [blame] | 19 | // types. Verify that shifts & logicals only happen on integrals f.e. |
Misha Brukman | 1c9de46 | 2004-06-24 21:47:35 +0000 | [diff] [blame] | 20 | // * All of the constants in a switch statement are of the correct type |
Chris Lattner | 8e72d6f | 2002-08-02 17:37:08 +0000 | [diff] [blame] | 21 | // * The code is in valid SSA form |
Misha Brukman | 1c9de46 | 2004-06-24 21:47:35 +0000 | [diff] [blame] | 22 | // * It should be illegal to put a label into any other type (like a structure) |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 23 | // or to return one. [except constant arrays!] |
Nick Lewycky | f88c84f | 2008-03-28 06:46:51 +0000 | [diff] [blame] | 24 | // * Only phi nodes can be self referential: 'add i32 %0, %0 ; <int>:0' is bad |
Chris Lattner | d02f08d | 2002-02-20 17:55:43 +0000 | [diff] [blame] | 25 | // * PHI nodes must have an entry for each predecessor, with no extras. |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 26 | // * PHI nodes must be the first thing in a basic block, all grouped together |
Chris Lattner | 4cd9df8 | 2002-10-06 21:00:31 +0000 | [diff] [blame] | 27 | // * PHI nodes must have at least one entry |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 28 | // * All basic blocks should only end with terminator insts, not contain them |
Chris Lattner | 3e6e3e6 | 2002-03-29 19:06:18 +0000 | [diff] [blame] | 29 | // * The entry node to a function must not have predecessors |
Misha Brukman | fa10053 | 2003-10-10 17:54:14 +0000 | [diff] [blame] | 30 | // * All Instructions must be embedded into a basic block |
Misha Brukman | 1c9de46 | 2004-06-24 21:47:35 +0000 | [diff] [blame] | 31 | // * Functions cannot take a void-typed parameter |
Chris Lattner | af95e58 | 2002-04-13 22:48:46 +0000 | [diff] [blame] | 32 | // * Verify that a function's argument list agrees with it's declared type. |
Chris Lattner | fbf5be5 | 2002-03-15 20:25:09 +0000 | [diff] [blame] | 33 | // * It is illegal to specify a name for a void value. |
Misha Brukman | fa10053 | 2003-10-10 17:54:14 +0000 | [diff] [blame] | 34 | // * It is illegal to have a internal global value with no initializer |
Chris Lattner | 486302a | 2002-04-12 18:20:49 +0000 | [diff] [blame] | 35 | // * It is illegal to have a ret instruction that returns a value that does not |
| 36 | // agree with the function return value type. |
Chris Lattner | 338a462 | 2002-05-08 19:49:50 +0000 | [diff] [blame] | 37 | // * Function call argument types match the function prototype |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 38 | // * A landing pad is defined by a landingpad instruction, and can be jumped to |
| 39 | // only by the unwind edge of an invoke instruction. |
| 40 | // * A landingpad instruction must be the first non-PHI instruction in the |
| 41 | // block. |
| 42 | // * All landingpad instructions must use the same personality function with |
| 43 | // the same function. |
Chris Lattner | d46bb6e | 2002-04-24 19:12:21 +0000 | [diff] [blame] | 44 | // * All other things that are tested by asserts spread about the code... |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 45 | // |
| 46 | //===----------------------------------------------------------------------===// |
| 47 | |
Chandler Carruth | 5ad5f15 | 2014-01-13 09:26:24 +0000 | [diff] [blame] | 48 | #include "llvm/IR/Verifier.h" |
Chandler Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 49 | #include "llvm/ADT/STLExtras.h" |
| 50 | #include "llvm/ADT/SetVector.h" |
| 51 | #include "llvm/ADT/SmallPtrSet.h" |
| 52 | #include "llvm/ADT/SmallVector.h" |
| 53 | #include "llvm/ADT/StringExtras.h" |
Chandler Carruth | 1305dc3 | 2014-03-04 11:45:46 +0000 | [diff] [blame] | 54 | #include "llvm/IR/CFG.h" |
Chandler Carruth | 219b89b | 2014-03-04 11:01:28 +0000 | [diff] [blame] | 55 | #include "llvm/IR/CallSite.h" |
Chandler Carruth | 9fb823b | 2013-01-02 11:36:10 +0000 | [diff] [blame] | 56 | #include "llvm/IR/CallingConv.h" |
Chandler Carruth | 8cd041e | 2014-03-04 12:24:34 +0000 | [diff] [blame] | 57 | #include "llvm/IR/ConstantRange.h" |
Chandler Carruth | 9fb823b | 2013-01-02 11:36:10 +0000 | [diff] [blame] | 58 | #include "llvm/IR/Constants.h" |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 59 | #include "llvm/IR/DataLayout.h" |
Chandler Carruth | 9a4c9e5 | 2014-03-06 00:46:21 +0000 | [diff] [blame] | 60 | #include "llvm/IR/DebugInfo.h" |
Chandler Carruth | 9fb823b | 2013-01-02 11:36:10 +0000 | [diff] [blame] | 61 | #include "llvm/IR/DerivedTypes.h" |
Chandler Carruth | 5ad5f15 | 2014-01-13 09:26:24 +0000 | [diff] [blame] | 62 | #include "llvm/IR/Dominators.h" |
Chandler Carruth | 9fb823b | 2013-01-02 11:36:10 +0000 | [diff] [blame] | 63 | #include "llvm/IR/InlineAsm.h" |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 64 | #include "llvm/IR/InstIterator.h" |
Chandler Carruth | 7da14f1 | 2014-03-06 03:23:41 +0000 | [diff] [blame] | 65 | #include "llvm/IR/InstVisitor.h" |
Chandler Carruth | 9fb823b | 2013-01-02 11:36:10 +0000 | [diff] [blame] | 66 | #include "llvm/IR/IntrinsicInst.h" |
| 67 | #include "llvm/IR/LLVMContext.h" |
| 68 | #include "llvm/IR/Metadata.h" |
| 69 | #include "llvm/IR/Module.h" |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 70 | #include "llvm/IR/PassManager.h" |
Philip Reames | 38303a3 | 2014-12-03 19:53:15 +0000 | [diff] [blame] | 71 | #include "llvm/IR/Statepoint.h" |
Chris Lattner | 8a923e7 | 2008-03-12 17:45:29 +0000 | [diff] [blame] | 72 | #include "llvm/Pass.h" |
Manman Ren | 74c61b9 | 2013-07-19 00:31:03 +0000 | [diff] [blame] | 73 | #include "llvm/Support/CommandLine.h" |
Chandler Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 74 | #include "llvm/Support/Debug.h" |
Torok Edwin | 6dd2730 | 2009-07-08 18:01:40 +0000 | [diff] [blame] | 75 | #include "llvm/Support/ErrorHandling.h" |
Chris Lattner | 2402526 | 2009-02-28 21:05:51 +0000 | [diff] [blame] | 76 | #include "llvm/Support/raw_ostream.h" |
Chris Lattner | d02f08d | 2002-02-20 17:55:43 +0000 | [diff] [blame] | 77 | #include <algorithm> |
Jeff Cohen | e453552 | 2006-03-31 07:22:05 +0000 | [diff] [blame] | 78 | #include <cstdarg> |
Chris Lattner | 189d19f | 2003-11-21 20:23:48 +0000 | [diff] [blame] | 79 | using namespace llvm; |
Brian Gaeke | 960707c | 2003-11-11 22:41:34 +0000 | [diff] [blame] | 80 | |
Duncan P. N. Exon Smith | 0633fd7 | 2015-03-17 17:28:41 +0000 | [diff] [blame] | 81 | static cl::opt<bool> VerifyDebugInfo("verify-debug-info", cl::init(true)); |
Manman Ren | 74c61b9 | 2013-07-19 00:31:03 +0000 | [diff] [blame] | 82 | |
Dan Gohman | d78c400 | 2008-05-13 00:00:25 +0000 | [diff] [blame] | 83 | namespace { |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 84 | struct VerifierSupport { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 85 | raw_ostream &OS; |
| 86 | const Module *M; |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 87 | |
| 88 | /// \brief Track the brokenness of the module while recursively visiting. |
| 89 | bool Broken; |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 90 | bool EverBroken; |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 91 | |
| 92 | explicit VerifierSupport(raw_ostream &OS) |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 93 | : OS(OS), M(nullptr), Broken(false), EverBroken(false) {} |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 94 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 95 | private: |
| 96 | void Write(const Value *V) { |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 97 | if (!V) |
| 98 | return; |
| 99 | if (isa<Instruction>(V)) { |
| 100 | OS << *V << '\n'; |
| 101 | } else { |
| 102 | V->printAsOperand(OS, true, M); |
| 103 | OS << '\n'; |
| 104 | } |
| 105 | } |
| 106 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 107 | void Write(const Metadata *MD) { |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 108 | if (!MD) |
| 109 | return; |
Duncan P. N. Exon Smith | d6d70e7 | 2015-03-14 20:19:36 +0000 | [diff] [blame] | 110 | MD->print(OS, M); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 111 | OS << '\n'; |
| 112 | } |
| 113 | |
Duncan P. N. Exon Smith | f238c78 | 2015-03-24 17:18:03 +0000 | [diff] [blame] | 114 | void Write(const NamedMDNode *NMD) { |
| 115 | if (!NMD) |
| 116 | return; |
| 117 | NMD->print(OS); |
| 118 | OS << '\n'; |
| 119 | } |
| 120 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 121 | void Write(Type *T) { |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 122 | if (!T) |
| 123 | return; |
| 124 | OS << ' ' << *T; |
| 125 | } |
| 126 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 127 | void Write(const Comdat *C) { |
David Majnemer | dad0a64 | 2014-06-27 18:19:56 +0000 | [diff] [blame] | 128 | if (!C) |
| 129 | return; |
| 130 | OS << *C; |
| 131 | } |
| 132 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 133 | template <typename T1, typename... Ts> |
| 134 | void WriteTs(const T1 &V1, const Ts &... Vs) { |
| 135 | Write(V1); |
| 136 | WriteTs(Vs...); |
| 137 | } |
| 138 | |
| 139 | template <typename... Ts> void WriteTs() {} |
| 140 | |
| 141 | public: |
Duncan P. N. Exon Smith | f2929c9 | 2015-03-16 17:49:03 +0000 | [diff] [blame] | 142 | /// \brief A check failed, so printout out the condition and the message. |
| 143 | /// |
| 144 | /// This provides a nice place to put a breakpoint if you want to see why |
| 145 | /// something is not correct. |
Duncan P. N. Exon Smith | ec9d3f7 | 2015-03-14 16:47:37 +0000 | [diff] [blame] | 146 | void CheckFailed(const Twine &Message) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 147 | OS << Message << '\n'; |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 148 | EverBroken = Broken = true; |
David Majnemer | dad0a64 | 2014-06-27 18:19:56 +0000 | [diff] [blame] | 149 | } |
Duncan P. N. Exon Smith | ec9d3f7 | 2015-03-14 16:47:37 +0000 | [diff] [blame] | 150 | |
Duncan P. N. Exon Smith | f2929c9 | 2015-03-16 17:49:03 +0000 | [diff] [blame] | 151 | /// \brief A check failed (with values to print). |
| 152 | /// |
| 153 | /// This calls the Message-only version so that the above is easier to set a |
| 154 | /// breakpoint on. |
Duncan P. N. Exon Smith | ec9d3f7 | 2015-03-14 16:47:37 +0000 | [diff] [blame] | 155 | template <typename T1, typename... Ts> |
| 156 | void CheckFailed(const Twine &Message, const T1 &V1, const Ts &... Vs) { |
| 157 | CheckFailed(Message); |
| 158 | WriteTs(V1, Vs...); |
| 159 | } |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 160 | }; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 161 | |
Duncan P. N. Exon Smith | 67b44da | 2014-04-15 16:27:32 +0000 | [diff] [blame] | 162 | class Verifier : public InstVisitor<Verifier>, VerifierSupport { |
| 163 | friend class InstVisitor<Verifier>; |
| 164 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 165 | LLVMContext *Context; |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 166 | DominatorTree DT; |
Chris Lattner | c9e79d0 | 2004-09-29 20:07:45 +0000 | [diff] [blame] | 167 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 168 | /// \brief When verifying a basic block, keep track of all of the |
| 169 | /// instructions we have seen so far. |
| 170 | /// |
| 171 | /// This allows us to do efficient dominance checks for the case when an |
| 172 | /// instruction has an operand that is an instruction in the same block. |
| 173 | SmallPtrSet<Instruction *, 16> InstsInThisBlock; |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 174 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 175 | /// \brief Keep track of the metadata nodes that have been checked already. |
Duncan P. N. Exon Smith | ac3ed7a | 2015-02-09 21:30:05 +0000 | [diff] [blame] | 176 | SmallPtrSet<const Metadata *, 32> MDNodes; |
Manman Ren | 9974c88 | 2013-07-23 00:22:51 +0000 | [diff] [blame] | 177 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 178 | /// \brief The personality function referenced by the LandingPadInsts. |
| 179 | /// All LandingPadInsts within the same function must use the same |
| 180 | /// personality function. |
| 181 | const Value *PersonalityFn; |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 182 | |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 183 | /// \brief Whether we've seen a call to @llvm.frameescape in this function |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 184 | /// already. |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 185 | bool SawFrameEscape; |
| 186 | |
| 187 | /// Stores the count of how many objects were passed to llvm.frameescape for a |
| 188 | /// given function and the largest index passed to llvm.framerecover. |
| 189 | DenseMap<Function *, std::pair<unsigned, unsigned>> FrameEscapeInfo; |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 190 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 191 | public: |
Duncan P. N. Exon Smith | 6fb58c4 | 2015-03-15 00:46:57 +0000 | [diff] [blame] | 192 | explicit Verifier(raw_ostream &OS) |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 193 | : VerifierSupport(OS), Context(nullptr), PersonalityFn(nullptr), |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 194 | SawFrameEscape(false) {} |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 195 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 196 | bool verify(const Function &F) { |
| 197 | M = F.getParent(); |
| 198 | Context = &M->getContext(); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 199 | |
| 200 | // First ensure the function is well-enough formed to compute dominance |
| 201 | // information. |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 202 | if (F.empty()) { |
| 203 | OS << "Function '" << F.getName() |
| 204 | << "' does not contain an entry block!\n"; |
| 205 | return false; |
| 206 | } |
| 207 | for (Function::const_iterator I = F.begin(), E = F.end(); I != E; ++I) { |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 208 | if (I->empty() || !I->back().isTerminator()) { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 209 | OS << "Basic Block in function '" << F.getName() |
| 210 | << "' does not have terminator!\n"; |
| 211 | I->printAsOperand(OS, true); |
| 212 | OS << "\n"; |
| 213 | return false; |
Chandler Carruth | 7677760 | 2014-01-17 10:56:02 +0000 | [diff] [blame] | 214 | } |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 215 | } |
Chandler Carruth | 7677760 | 2014-01-17 10:56:02 +0000 | [diff] [blame] | 216 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 217 | // Now directly compute a dominance tree. We don't rely on the pass |
| 218 | // manager to provide this as it isolates us from a potentially |
| 219 | // out-of-date dominator tree and makes it significantly more complex to |
| 220 | // run this code outside of a pass manager. |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 221 | // FIXME: It's really gross that we have to cast away constness here. |
| 222 | DT.recalculate(const_cast<Function &>(F)); |
Chris Lattner | af332ee | 2007-04-20 23:59:29 +0000 | [diff] [blame] | 223 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 224 | Broken = false; |
| 225 | // FIXME: We strip const here because the inst visitor strips const. |
| 226 | visit(const_cast<Function &>(F)); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 227 | InstsInThisBlock.clear(); |
Craig Topper | c620761 | 2014-04-09 06:08:46 +0000 | [diff] [blame] | 228 | PersonalityFn = nullptr; |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 229 | SawFrameEscape = false; |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 230 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 231 | return !Broken; |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 232 | } |
| 233 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 234 | bool verify(const Module &M) { |
| 235 | this->M = &M; |
| 236 | Context = &M.getContext(); |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 237 | Broken = false; |
| 238 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 239 | // Scan through, checking all of the external function's linkage now... |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 240 | for (Module::const_iterator I = M.begin(), E = M.end(); I != E; ++I) { |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 241 | visitGlobalValue(*I); |
| 242 | |
| 243 | // Check to make sure function prototypes are okay. |
| 244 | if (I->isDeclaration()) |
| 245 | visitFunction(*I); |
| 246 | } |
| 247 | |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 248 | // Now that we've visited every function, verify that we never asked to |
| 249 | // recover a frame index that wasn't escaped. |
| 250 | verifyFrameRecoverIndices(); |
| 251 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 252 | for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 253 | I != E; ++I) |
| 254 | visitGlobalVariable(*I); |
| 255 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 256 | for (Module::const_alias_iterator I = M.alias_begin(), E = M.alias_end(); |
| 257 | I != E; ++I) |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 258 | visitGlobalAlias(*I); |
| 259 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 260 | for (Module::const_named_metadata_iterator I = M.named_metadata_begin(), |
| 261 | E = M.named_metadata_end(); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 262 | I != E; ++I) |
| 263 | visitNamedMDNode(*I); |
| 264 | |
David Majnemer | dad0a64 | 2014-06-27 18:19:56 +0000 | [diff] [blame] | 265 | for (const StringMapEntry<Comdat> &SMEC : M.getComdatSymbolTable()) |
| 266 | visitComdat(SMEC.getValue()); |
| 267 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 268 | visitModuleFlags(M); |
| 269 | visitModuleIdents(M); |
| 270 | |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 271 | // Verify debug info last. |
| 272 | verifyDebugInfo(); |
| 273 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 274 | return !Broken; |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 275 | } |
Chris Lattner | 9713b84 | 2002-04-28 16:04:26 +0000 | [diff] [blame] | 276 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 277 | private: |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 278 | // Verification methods... |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 279 | void visitGlobalValue(const GlobalValue &GV); |
| 280 | void visitGlobalVariable(const GlobalVariable &GV); |
| 281 | void visitGlobalAlias(const GlobalAlias &GA); |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 282 | void visitAliaseeSubExpr(const GlobalAlias &A, const Constant &C); |
Craig Topper | 71b7b68 | 2014-08-21 05:55:13 +0000 | [diff] [blame] | 283 | void visitAliaseeSubExpr(SmallPtrSetImpl<const GlobalAlias *> &Visited, |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 284 | const GlobalAlias &A, const Constant &C); |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 285 | void visitNamedMDNode(const NamedMDNode &NMD); |
Duncan P. N. Exon Smith | ac3ed7a | 2015-02-09 21:30:05 +0000 | [diff] [blame] | 286 | void visitMDNode(const MDNode &MD); |
| 287 | void visitMetadataAsValue(const MetadataAsValue &MD, Function *F); |
| 288 | void visitValueAsMetadata(const ValueAsMetadata &MD, Function *F); |
David Majnemer | dad0a64 | 2014-06-27 18:19:56 +0000 | [diff] [blame] | 289 | void visitComdat(const Comdat &C); |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 290 | void visitModuleIdents(const Module &M); |
| 291 | void visitModuleFlags(const Module &M); |
| 292 | void visitModuleFlag(const MDNode *Op, |
| 293 | DenseMap<const MDString *, const MDNode *> &SeenIDs, |
| 294 | SmallVectorImpl<const MDNode *> &Requirements); |
| 295 | void visitFunction(const Function &F); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 296 | void visitBasicBlock(BasicBlock &BB); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 297 | void visitRangeMetadata(Instruction& I, MDNode* Range, Type* Ty); |
| 298 | |
Duncan P. N. Exon Smith | 869db50 | 2015-03-30 16:19:15 +0000 | [diff] [blame] | 299 | template <class Ty> bool isValidMetadataArray(const MDTuple &N); |
Duncan P. N. Exon Smith | b0a19ad | 2015-02-10 01:09:50 +0000 | [diff] [blame] | 300 | #define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) void visit##CLASS(const CLASS &N); |
| 301 | #include "llvm/IR/Metadata.def" |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 302 | void visitMDScope(const MDScope &N); |
| 303 | void visitMDDerivedTypeBase(const MDDerivedTypeBase &N); |
Duncan P. N. Exon Smith | 3d2afaa | 2015-03-27 17:29:58 +0000 | [diff] [blame] | 304 | void visitMDVariable(const MDVariable &N); |
Duncan P. N. Exon Smith | 0e202b9 | 2015-03-30 16:37:48 +0000 | [diff] [blame] | 305 | void visitMDLexicalBlockBase(const MDLexicalBlockBase &N); |
Duncan P. N. Exon Smith | f9b4775 | 2015-03-30 17:21:38 +0000 | [diff] [blame^] | 306 | void visitMDTemplateParameter(const MDTemplateParameter &N); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 307 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 308 | // InstVisitor overrides... |
| 309 | using InstVisitor<Verifier>::visit; |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 310 | void visit(Instruction &I); |
| 311 | |
| 312 | void visitTruncInst(TruncInst &I); |
| 313 | void visitZExtInst(ZExtInst &I); |
| 314 | void visitSExtInst(SExtInst &I); |
| 315 | void visitFPTruncInst(FPTruncInst &I); |
| 316 | void visitFPExtInst(FPExtInst &I); |
| 317 | void visitFPToUIInst(FPToUIInst &I); |
| 318 | void visitFPToSIInst(FPToSIInst &I); |
| 319 | void visitUIToFPInst(UIToFPInst &I); |
| 320 | void visitSIToFPInst(SIToFPInst &I); |
| 321 | void visitIntToPtrInst(IntToPtrInst &I); |
| 322 | void visitPtrToIntInst(PtrToIntInst &I); |
| 323 | void visitBitCastInst(BitCastInst &I); |
| 324 | void visitAddrSpaceCastInst(AddrSpaceCastInst &I); |
| 325 | void visitPHINode(PHINode &PN); |
| 326 | void visitBinaryOperator(BinaryOperator &B); |
| 327 | void visitICmpInst(ICmpInst &IC); |
| 328 | void visitFCmpInst(FCmpInst &FC); |
| 329 | void visitExtractElementInst(ExtractElementInst &EI); |
| 330 | void visitInsertElementInst(InsertElementInst &EI); |
| 331 | void visitShuffleVectorInst(ShuffleVectorInst &EI); |
| 332 | void visitVAArgInst(VAArgInst &VAA) { visitInstruction(VAA); } |
| 333 | void visitCallInst(CallInst &CI); |
| 334 | void visitInvokeInst(InvokeInst &II); |
| 335 | void visitGetElementPtrInst(GetElementPtrInst &GEP); |
| 336 | void visitLoadInst(LoadInst &LI); |
| 337 | void visitStoreInst(StoreInst &SI); |
| 338 | void verifyDominatesUse(Instruction &I, unsigned i); |
| 339 | void visitInstruction(Instruction &I); |
| 340 | void visitTerminatorInst(TerminatorInst &I); |
| 341 | void visitBranchInst(BranchInst &BI); |
| 342 | void visitReturnInst(ReturnInst &RI); |
| 343 | void visitSwitchInst(SwitchInst &SI); |
| 344 | void visitIndirectBrInst(IndirectBrInst &BI); |
| 345 | void visitSelectInst(SelectInst &SI); |
| 346 | void visitUserOp1(Instruction &I); |
| 347 | void visitUserOp2(Instruction &I) { visitUserOp1(I); } |
| 348 | void visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI); |
Duncan P. N. Exon Smith | 166121a | 2015-03-15 01:21:30 +0000 | [diff] [blame] | 349 | template <class DbgIntrinsicTy> |
| 350 | void visitDbgIntrinsic(StringRef Kind, DbgIntrinsicTy &DII); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 351 | void visitAtomicCmpXchgInst(AtomicCmpXchgInst &CXI); |
| 352 | void visitAtomicRMWInst(AtomicRMWInst &RMWI); |
| 353 | void visitFenceInst(FenceInst &FI); |
| 354 | void visitAllocaInst(AllocaInst &AI); |
| 355 | void visitExtractValueInst(ExtractValueInst &EVI); |
| 356 | void visitInsertValueInst(InsertValueInst &IVI); |
| 357 | void visitLandingPadInst(LandingPadInst &LPI); |
| 358 | |
| 359 | void VerifyCallSite(CallSite CS); |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 360 | void verifyMustTailCall(CallInst &CI); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 361 | bool PerformTypeCheck(Intrinsic::ID ID, Function *F, Type *Ty, int VT, |
| 362 | unsigned ArgNo, std::string &Suffix); |
| 363 | bool VerifyIntrinsicType(Type *Ty, ArrayRef<Intrinsic::IITDescriptor> &Infos, |
| 364 | SmallVectorImpl<Type *> &ArgTys); |
| 365 | bool VerifyIntrinsicIsVarArg(bool isVarArg, |
| 366 | ArrayRef<Intrinsic::IITDescriptor> &Infos); |
| 367 | bool VerifyAttributeCount(AttributeSet Attrs, unsigned Params); |
| 368 | void VerifyAttributeTypes(AttributeSet Attrs, unsigned Idx, bool isFunction, |
| 369 | const Value *V); |
| 370 | void VerifyParameterAttrs(AttributeSet Attrs, unsigned Idx, Type *Ty, |
| 371 | bool isReturnValue, const Value *V); |
| 372 | void VerifyFunctionAttrs(FunctionType *FT, AttributeSet Attrs, |
| 373 | const Value *V); |
| 374 | |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 375 | void VerifyConstantExprBitcastType(const ConstantExpr *CE); |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 376 | void VerifyStatepoint(ImmutableCallSite CS); |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 377 | void verifyFrameRecoverIndices(); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 378 | |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 379 | // Module-level debug info verification... |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 380 | void verifyDebugInfo(); |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 381 | void processInstructions(DebugInfoFinder &Finder); |
| 382 | void processCallInst(DebugInfoFinder &Finder, const CallInst &CI); |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 383 | }; |
Chris Lattner | 189d19f | 2003-11-21 20:23:48 +0000 | [diff] [blame] | 384 | } // End anonymous namespace |
| 385 | |
Chris Lattner | d02f08d | 2002-02-20 17:55:43 +0000 | [diff] [blame] | 386 | // Assert - We know that cond should be true, if not print an error message. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 387 | #define Assert(C, ...) \ |
| 388 | do { if (!(C)) { CheckFailed(__VA_ARGS__); return; } } while (0) |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 389 | |
Chris Lattner | e5a22c0 | 2008-08-28 04:02:44 +0000 | [diff] [blame] | 390 | void Verifier::visit(Instruction &I) { |
| 391 | for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 392 | Assert(I.getOperand(i) != nullptr, "Operand is null", &I); |
Chris Lattner | e5a22c0 | 2008-08-28 04:02:44 +0000 | [diff] [blame] | 393 | InstVisitor<Verifier>::visit(I); |
| 394 | } |
| 395 | |
| 396 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 397 | void Verifier::visitGlobalValue(const GlobalValue &GV) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 398 | Assert(!GV.isDeclaration() || GV.hasExternalLinkage() || |
| 399 | GV.hasExternalWeakLinkage(), |
| 400 | "Global is external, but doesn't have external or weak linkage!", &GV); |
Anton Korobeynikov | d61d39e | 2006-09-14 18:23:27 +0000 | [diff] [blame] | 401 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 402 | Assert(GV.getAlignment() <= Value::MaximumAlignment, |
| 403 | "huge alignment values are unsupported", &GV); |
| 404 | Assert(!GV.hasAppendingLinkage() || isa<GlobalVariable>(GV), |
| 405 | "Only global variables can have appending linkage!", &GV); |
Chris Lattner | 3ac483b | 2003-04-16 20:42:40 +0000 | [diff] [blame] | 406 | |
| 407 | if (GV.hasAppendingLinkage()) { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 408 | const GlobalVariable *GVar = dyn_cast<GlobalVariable>(&GV); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 409 | Assert(GVar && GVar->getType()->getElementType()->isArrayTy(), |
| 410 | "Only global arrays can have appending linkage!", GVar); |
Chris Lattner | 3ac483b | 2003-04-16 20:42:40 +0000 | [diff] [blame] | 411 | } |
| 412 | } |
| 413 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 414 | void Verifier::visitGlobalVariable(const GlobalVariable &GV) { |
Chris Lattner | d79f3d5 | 2007-09-19 17:14:45 +0000 | [diff] [blame] | 415 | if (GV.hasInitializer()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 416 | Assert(GV.getInitializer()->getType() == GV.getType()->getElementType(), |
| 417 | "Global variable initializer type does not match global " |
| 418 | "variable type!", |
| 419 | &GV); |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 420 | |
Chris Lattner | 0aff0b2 | 2009-08-05 05:41:44 +0000 | [diff] [blame] | 421 | // If the global has common linkage, it must have a zero initializer and |
| 422 | // cannot be constant. |
| 423 | if (GV.hasCommonLinkage()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 424 | Assert(GV.getInitializer()->isNullValue(), |
| 425 | "'common' global must have a zero initializer!", &GV); |
| 426 | Assert(!GV.isConstant(), "'common' global may not be marked constant!", |
| 427 | &GV); |
| 428 | Assert(!GV.hasComdat(), "'common' global may not be in a Comdat!", &GV); |
Chris Lattner | 0aff0b2 | 2009-08-05 05:41:44 +0000 | [diff] [blame] | 429 | } |
Chris Lattner | d79f3d5 | 2007-09-19 17:14:45 +0000 | [diff] [blame] | 430 | } else { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 431 | Assert(GV.hasExternalLinkage() || GV.hasExternalWeakLinkage(), |
| 432 | "invalid linkage type for global declaration", &GV); |
Chris Lattner | d79f3d5 | 2007-09-19 17:14:45 +0000 | [diff] [blame] | 433 | } |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 434 | |
Nick Lewycky | 466d0c1 | 2011-04-08 07:30:21 +0000 | [diff] [blame] | 435 | if (GV.hasName() && (GV.getName() == "llvm.global_ctors" || |
| 436 | GV.getName() == "llvm.global_dtors")) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 437 | Assert(!GV.hasInitializer() || GV.hasAppendingLinkage(), |
| 438 | "invalid linkage for intrinsic global variable", &GV); |
Nick Lewycky | 466d0c1 | 2011-04-08 07:30:21 +0000 | [diff] [blame] | 439 | // Don't worry about emitting an error for it not being an array, |
| 440 | // visitGlobalValue will complain on appending non-array. |
Reid Kleckner | fceb76f | 2014-05-16 20:39:27 +0000 | [diff] [blame] | 441 | if (ArrayType *ATy = dyn_cast<ArrayType>(GV.getType()->getElementType())) { |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 442 | StructType *STy = dyn_cast<StructType>(ATy->getElementType()); |
| 443 | PointerType *FuncPtrTy = |
Micah Villmow | 51e7246 | 2012-10-24 17:25:11 +0000 | [diff] [blame] | 444 | FunctionType::get(Type::getVoidTy(*Context), false)->getPointerTo(); |
Reid Kleckner | fceb76f | 2014-05-16 20:39:27 +0000 | [diff] [blame] | 445 | // FIXME: Reject the 2-field form in LLVM 4.0. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 446 | Assert(STy && |
| 447 | (STy->getNumElements() == 2 || STy->getNumElements() == 3) && |
| 448 | STy->getTypeAtIndex(0u)->isIntegerTy(32) && |
| 449 | STy->getTypeAtIndex(1) == FuncPtrTy, |
| 450 | "wrong type for intrinsic global variable", &GV); |
Reid Kleckner | fceb76f | 2014-05-16 20:39:27 +0000 | [diff] [blame] | 451 | if (STy->getNumElements() == 3) { |
| 452 | Type *ETy = STy->getTypeAtIndex(2); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 453 | Assert(ETy->isPointerTy() && |
| 454 | cast<PointerType>(ETy)->getElementType()->isIntegerTy(8), |
| 455 | "wrong type for intrinsic global variable", &GV); |
Reid Kleckner | fceb76f | 2014-05-16 20:39:27 +0000 | [diff] [blame] | 456 | } |
Nick Lewycky | 466d0c1 | 2011-04-08 07:30:21 +0000 | [diff] [blame] | 457 | } |
| 458 | } |
| 459 | |
Rafael Espindola | 8bd2c22 | 2013-04-22 15:16:51 +0000 | [diff] [blame] | 460 | if (GV.hasName() && (GV.getName() == "llvm.used" || |
Rafael Espindola | 9aadcc4 | 2013-07-19 18:44:51 +0000 | [diff] [blame] | 461 | GV.getName() == "llvm.compiler.used")) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 462 | Assert(!GV.hasInitializer() || GV.hasAppendingLinkage(), |
| 463 | "invalid linkage for intrinsic global variable", &GV); |
Rafael Espindola | 74f2e46 | 2013-04-22 14:58:02 +0000 | [diff] [blame] | 464 | Type *GVType = GV.getType()->getElementType(); |
| 465 | if (ArrayType *ATy = dyn_cast<ArrayType>(GVType)) { |
| 466 | PointerType *PTy = dyn_cast<PointerType>(ATy->getElementType()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 467 | Assert(PTy, "wrong type for intrinsic global variable", &GV); |
Rafael Espindola | 74f2e46 | 2013-04-22 14:58:02 +0000 | [diff] [blame] | 468 | if (GV.hasInitializer()) { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 469 | const Constant *Init = GV.getInitializer(); |
| 470 | const ConstantArray *InitArray = dyn_cast<ConstantArray>(Init); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 471 | Assert(InitArray, "wrong initalizer for intrinsic global variable", |
| 472 | Init); |
Rafael Espindola | 74f2e46 | 2013-04-22 14:58:02 +0000 | [diff] [blame] | 473 | for (unsigned i = 0, e = InitArray->getNumOperands(); i != e; ++i) { |
Rafael Espindola | eaf5327 | 2013-05-27 22:47:09 +0000 | [diff] [blame] | 474 | Value *V = Init->getOperand(i)->stripPointerCastsNoFollowAliases(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 475 | Assert(isa<GlobalVariable>(V) || isa<Function>(V) || |
| 476 | isa<GlobalAlias>(V), |
| 477 | "invalid llvm.used member", V); |
| 478 | Assert(V->hasName(), "members of llvm.used must be named", V); |
Rafael Espindola | 74f2e46 | 2013-04-22 14:58:02 +0000 | [diff] [blame] | 479 | } |
| 480 | } |
| 481 | } |
| 482 | } |
| 483 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 484 | Assert(!GV.hasDLLImportStorageClass() || |
| 485 | (GV.isDeclaration() && GV.hasExternalLinkage()) || |
| 486 | GV.hasAvailableExternallyLinkage(), |
| 487 | "Global is marked as dllimport, but not external", &GV); |
Nico Rieck | 7157bb7 | 2014-01-14 15:22:47 +0000 | [diff] [blame] | 488 | |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 489 | if (!GV.hasInitializer()) { |
| 490 | visitGlobalValue(GV); |
| 491 | return; |
| 492 | } |
| 493 | |
| 494 | // Walk any aggregate initializers looking for bitcasts between address spaces |
| 495 | SmallPtrSet<const Value *, 4> Visited; |
| 496 | SmallVector<const Value *, 4> WorkStack; |
| 497 | WorkStack.push_back(cast<Value>(GV.getInitializer())); |
| 498 | |
| 499 | while (!WorkStack.empty()) { |
| 500 | const Value *V = WorkStack.pop_back_val(); |
David Blaikie | 70573dc | 2014-11-19 07:49:26 +0000 | [diff] [blame] | 501 | if (!Visited.insert(V).second) |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 502 | continue; |
| 503 | |
| 504 | if (const User *U = dyn_cast<User>(V)) { |
Benjamin Kramer | 6cd780f | 2015-02-17 15:29:18 +0000 | [diff] [blame] | 505 | WorkStack.append(U->op_begin(), U->op_end()); |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 506 | } |
| 507 | |
| 508 | if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) { |
| 509 | VerifyConstantExprBitcastType(CE); |
| 510 | if (Broken) |
| 511 | return; |
| 512 | } |
| 513 | } |
| 514 | |
Chris Lattner | e340065 | 2004-12-15 20:23:49 +0000 | [diff] [blame] | 515 | visitGlobalValue(GV); |
| 516 | } |
| 517 | |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 518 | void Verifier::visitAliaseeSubExpr(const GlobalAlias &GA, const Constant &C) { |
| 519 | SmallPtrSet<const GlobalAlias*, 4> Visited; |
| 520 | Visited.insert(&GA); |
| 521 | visitAliaseeSubExpr(Visited, GA, C); |
| 522 | } |
| 523 | |
Craig Topper | 71b7b68 | 2014-08-21 05:55:13 +0000 | [diff] [blame] | 524 | void Verifier::visitAliaseeSubExpr(SmallPtrSetImpl<const GlobalAlias*> &Visited, |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 525 | const GlobalAlias &GA, const Constant &C) { |
| 526 | if (const auto *GV = dyn_cast<GlobalValue>(&C)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 527 | Assert(!GV->isDeclaration(), "Alias must point to a definition", &GA); |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 528 | |
| 529 | if (const auto *GA2 = dyn_cast<GlobalAlias>(GV)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 530 | Assert(Visited.insert(GA2).second, "Aliases cannot form a cycle", &GA); |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 531 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 532 | Assert(!GA2->mayBeOverridden(), "Alias cannot point to a weak alias", |
| 533 | &GA); |
Bob Wilson | 2f7cc01 | 2014-06-12 01:46:54 +0000 | [diff] [blame] | 534 | } else { |
| 535 | // Only continue verifying subexpressions of GlobalAliases. |
| 536 | // Do not recurse into global initializers. |
| 537 | return; |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 538 | } |
| 539 | } |
| 540 | |
| 541 | if (const auto *CE = dyn_cast<ConstantExpr>(&C)) |
| 542 | VerifyConstantExprBitcastType(CE); |
| 543 | |
| 544 | for (const Use &U : C.operands()) { |
| 545 | Value *V = &*U; |
| 546 | if (const auto *GA2 = dyn_cast<GlobalAlias>(V)) |
| 547 | visitAliaseeSubExpr(Visited, GA, *GA2->getAliasee()); |
| 548 | else if (const auto *C2 = dyn_cast<Constant>(V)) |
| 549 | visitAliaseeSubExpr(Visited, GA, *C2); |
| 550 | } |
| 551 | } |
| 552 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 553 | void Verifier::visitGlobalAlias(const GlobalAlias &GA) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 554 | Assert(!GA.getName().empty(), "Alias name cannot be empty!", &GA); |
| 555 | Assert(GlobalAlias::isValidLinkage(GA.getLinkage()), |
| 556 | "Alias should have private, internal, linkonce, weak, linkonce_odr, " |
| 557 | "weak_odr, or external linkage!", |
| 558 | &GA); |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 559 | const Constant *Aliasee = GA.getAliasee(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 560 | Assert(Aliasee, "Aliasee cannot be NULL!", &GA); |
| 561 | Assert(GA.getType() == Aliasee->getType(), |
| 562 | "Alias and aliasee types should match!", &GA); |
Anton Korobeynikov | a50eed4 | 2008-05-08 23:11:06 +0000 | [diff] [blame] | 563 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 564 | Assert(isa<GlobalValue>(Aliasee) || isa<ConstantExpr>(Aliasee), |
| 565 | "Aliasee should be either GlobalValue or ConstantExpr", &GA); |
Matt Arsenault | 828b565 | 2013-07-20 17:46:05 +0000 | [diff] [blame] | 566 | |
Rafael Espindola | 64c1e18 | 2014-06-03 02:41:57 +0000 | [diff] [blame] | 567 | visitAliaseeSubExpr(GA, *Aliasee); |
Anton Korobeynikov | 25b2e82 | 2008-03-22 08:36:14 +0000 | [diff] [blame] | 568 | |
Anton Korobeynikov | a97b694 | 2007-04-25 14:27:10 +0000 | [diff] [blame] | 569 | visitGlobalValue(GA); |
| 570 | } |
| 571 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 572 | void Verifier::visitNamedMDNode(const NamedMDNode &NMD) { |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 573 | for (unsigned i = 0, e = NMD.getNumOperands(); i != e; ++i) { |
Duncan P. N. Exon Smith | de36e80 | 2014-11-11 21:30:22 +0000 | [diff] [blame] | 574 | MDNode *MD = NMD.getOperand(i); |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 575 | if (!MD) |
| 576 | continue; |
| 577 | |
Duncan P. N. Exon Smith | f238c78 | 2015-03-24 17:18:03 +0000 | [diff] [blame] | 578 | if (NMD.getName() == "llvm.dbg.cu") { |
| 579 | Assert(isa<MDCompileUnit>(MD), "invalid compile unit", &NMD, MD); |
| 580 | } |
| 581 | |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 582 | visitMDNode(*MD); |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 583 | } |
| 584 | } |
| 585 | |
Duncan P. N. Exon Smith | ac3ed7a | 2015-02-09 21:30:05 +0000 | [diff] [blame] | 586 | void Verifier::visitMDNode(const MDNode &MD) { |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 587 | // Only visit each node once. Metadata can be mutually recursive, so this |
| 588 | // avoids infinite recursion here, as well as being an optimization. |
David Blaikie | 70573dc | 2014-11-19 07:49:26 +0000 | [diff] [blame] | 589 | if (!MDNodes.insert(&MD).second) |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 590 | return; |
| 591 | |
Duncan P. N. Exon Smith | b0a19ad | 2015-02-10 01:09:50 +0000 | [diff] [blame] | 592 | switch (MD.getMetadataID()) { |
| 593 | default: |
| 594 | llvm_unreachable("Invalid MDNode subclass"); |
| 595 | case Metadata::MDTupleKind: |
| 596 | break; |
| 597 | #define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) \ |
| 598 | case Metadata::CLASS##Kind: \ |
| 599 | visit##CLASS(cast<CLASS>(MD)); \ |
| 600 | break; |
| 601 | #include "llvm/IR/Metadata.def" |
| 602 | } |
| 603 | |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 604 | for (unsigned i = 0, e = MD.getNumOperands(); i != e; ++i) { |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 605 | Metadata *Op = MD.getOperand(i); |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 606 | if (!Op) |
| 607 | continue; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 608 | Assert(!isa<LocalAsMetadata>(Op), "Invalid operand for global metadata!", |
| 609 | &MD, Op); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 610 | if (auto *N = dyn_cast<MDNode>(Op)) { |
| 611 | visitMDNode(*N); |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 612 | continue; |
| 613 | } |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 614 | if (auto *V = dyn_cast<ValueAsMetadata>(Op)) { |
| 615 | visitValueAsMetadata(*V, nullptr); |
| 616 | continue; |
| 617 | } |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 618 | } |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 619 | |
| 620 | // Check these last, so we diagnose problems in operands first. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 621 | Assert(!MD.isTemporary(), "Expected no forward declarations!", &MD); |
| 622 | Assert(MD.isResolved(), "All nodes should be resolved!", &MD); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 623 | } |
| 624 | |
Duncan P. N. Exon Smith | ac3ed7a | 2015-02-09 21:30:05 +0000 | [diff] [blame] | 625 | void Verifier::visitValueAsMetadata(const ValueAsMetadata &MD, Function *F) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 626 | Assert(MD.getValue(), "Expected valid value", &MD); |
| 627 | Assert(!MD.getValue()->getType()->isMetadataTy(), |
| 628 | "Unexpected metadata round-trip through values", &MD, MD.getValue()); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 629 | |
| 630 | auto *L = dyn_cast<LocalAsMetadata>(&MD); |
| 631 | if (!L) |
| 632 | return; |
| 633 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 634 | Assert(F, "function-local metadata used outside a function", L); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 635 | |
| 636 | // If this was an instruction, bb, or argument, verify that it is in the |
| 637 | // function that we expect. |
| 638 | Function *ActualF = nullptr; |
| 639 | if (Instruction *I = dyn_cast<Instruction>(L->getValue())) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 640 | Assert(I->getParent(), "function-local metadata not in basic block", L, I); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 641 | ActualF = I->getParent()->getParent(); |
| 642 | } else if (BasicBlock *BB = dyn_cast<BasicBlock>(L->getValue())) |
| 643 | ActualF = BB->getParent(); |
| 644 | else if (Argument *A = dyn_cast<Argument>(L->getValue())) |
| 645 | ActualF = A->getParent(); |
| 646 | assert(ActualF && "Unimplemented function local metadata case!"); |
| 647 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 648 | Assert(ActualF == F, "function-local metadata used in wrong function", L); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 649 | } |
| 650 | |
Duncan P. N. Exon Smith | ac3ed7a | 2015-02-09 21:30:05 +0000 | [diff] [blame] | 651 | void Verifier::visitMetadataAsValue(const MetadataAsValue &MDV, Function *F) { |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 652 | Metadata *MD = MDV.getMetadata(); |
| 653 | if (auto *N = dyn_cast<MDNode>(MD)) { |
| 654 | visitMDNode(*N); |
| 655 | return; |
| 656 | } |
| 657 | |
| 658 | // Only visit each node once. Metadata can be mutually recursive, so this |
| 659 | // avoids infinite recursion here, as well as being an optimization. |
| 660 | if (!MDNodes.insert(MD).second) |
| 661 | return; |
| 662 | |
| 663 | if (auto *V = dyn_cast<ValueAsMetadata>(MD)) |
| 664 | visitValueAsMetadata(*V, F); |
Duncan Sands | 76d6217 | 2010-04-29 16:10:30 +0000 | [diff] [blame] | 665 | } |
| 666 | |
Duncan P. N. Exon Smith | 3d2afaa | 2015-03-27 17:29:58 +0000 | [diff] [blame] | 667 | /// \brief Check if a value can be a reference to a type. |
| 668 | static bool isTypeRef(const Metadata *MD) { |
| 669 | if (!MD) |
| 670 | return true; |
| 671 | if (auto *S = dyn_cast<MDString>(MD)) |
| 672 | return !S->getString().empty(); |
| 673 | return isa<MDType>(MD); |
| 674 | } |
| 675 | |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 676 | /// \brief Check if a value can be a ScopeRef. |
| 677 | static bool isScopeRef(const Metadata *MD) { |
| 678 | if (!MD) |
| 679 | return true; |
| 680 | if (auto *S = dyn_cast<MDString>(MD)) |
| 681 | return !S->getString().empty(); |
| 682 | return isa<MDScope>(MD); |
| 683 | } |
| 684 | |
Duncan P. N. Exon Smith | f9b4775 | 2015-03-30 17:21:38 +0000 | [diff] [blame^] | 685 | /// \brief Check if a value can be a debug info ref. |
| 686 | static bool isDIRef(const Metadata *MD) { |
| 687 | if (!MD) |
| 688 | return true; |
| 689 | if (auto *S = dyn_cast<MDString>(MD)) |
| 690 | return !S->getString().empty(); |
| 691 | return isa<DebugNode>(MD); |
| 692 | } |
| 693 | |
Duncan P. N. Exon Smith | 869db50 | 2015-03-30 16:19:15 +0000 | [diff] [blame] | 694 | template <class Ty> |
| 695 | bool isValidMetadataArrayImpl(const MDTuple &N, bool AllowNull) { |
| 696 | for (Metadata *MD : N.operands()) { |
| 697 | if (MD) { |
| 698 | if (!isa<Ty>(MD)) |
| 699 | return false; |
| 700 | } else { |
| 701 | if (!AllowNull) |
| 702 | return false; |
| 703 | } |
| 704 | } |
| 705 | return true; |
| 706 | } |
| 707 | |
| 708 | template <class Ty> |
| 709 | bool isValidMetadataArray(const MDTuple &N) { |
| 710 | return isValidMetadataArrayImpl<Ty>(N, /* AllowNull */ false); |
| 711 | } |
| 712 | |
| 713 | template <class Ty> |
| 714 | bool isValidMetadataNullArray(const MDTuple &N) { |
| 715 | return isValidMetadataArrayImpl<Ty>(N, /* AllowNull */ true); |
| 716 | } |
| 717 | |
Duncan P. N. Exon Smith | 692bdb9 | 2015-02-10 01:32:56 +0000 | [diff] [blame] | 718 | void Verifier::visitMDLocation(const MDLocation &N) { |
Duncan P. N. Exon Smith | 2648998 | 2015-03-26 22:05:04 +0000 | [diff] [blame] | 719 | Assert(N.getRawScope() && isa<MDLocalScope>(N.getRawScope()), |
| 720 | "location requires a valid scope", &N, N.getRawScope()); |
| 721 | if (auto *IA = N.getRawInlinedAt()) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 722 | Assert(isa<MDLocation>(IA), "inlined-at should be a location", &N, IA); |
Duncan P. N. Exon Smith | 692bdb9 | 2015-02-10 01:32:56 +0000 | [diff] [blame] | 723 | } |
| 724 | |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 725 | void Verifier::visitGenericDebugNode(const GenericDebugNode &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 726 | Assert(N.getTag(), "invalid tag", &N); |
Duncan P. N. Exon Smith | b0a19ad | 2015-02-10 01:09:50 +0000 | [diff] [blame] | 727 | } |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 728 | |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 729 | void Verifier::visitMDScope(const MDScope &N) { |
| 730 | if (auto *F = N.getRawFile()) |
| 731 | Assert(isa<MDFile>(F), "invalid file", &N, F); |
| 732 | } |
| 733 | |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 734 | void Verifier::visitMDSubrange(const MDSubrange &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 735 | Assert(N.getTag() == dwarf::DW_TAG_subrange_type, "invalid tag", &N); |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 736 | Assert(N.getCount() >= -1, "invalid subrange count", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 737 | } |
| 738 | |
| 739 | void Verifier::visitMDEnumerator(const MDEnumerator &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 740 | Assert(N.getTag() == dwarf::DW_TAG_enumerator, "invalid tag", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 741 | } |
| 742 | |
| 743 | void Verifier::visitMDBasicType(const MDBasicType &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 744 | Assert(N.getTag() == dwarf::DW_TAG_base_type || |
| 745 | N.getTag() == dwarf::DW_TAG_unspecified_type, |
| 746 | "invalid tag", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 747 | } |
| 748 | |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 749 | void Verifier::visitMDDerivedTypeBase(const MDDerivedTypeBase &N) { |
| 750 | // Common scope checks. |
| 751 | visitMDScope(N); |
| 752 | |
| 753 | Assert(isScopeRef(N.getScope()), "invalid scope", &N, N.getScope()); |
| 754 | Assert(isTypeRef(N.getBaseType()), "invalid base type", &N, N.getBaseType()); |
| 755 | } |
| 756 | |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 757 | void Verifier::visitMDDerivedType(const MDDerivedType &N) { |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 758 | // Common derived type checks. |
| 759 | visitMDDerivedTypeBase(N); |
| 760 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 761 | Assert(N.getTag() == dwarf::DW_TAG_typedef || |
| 762 | N.getTag() == dwarf::DW_TAG_pointer_type || |
| 763 | N.getTag() == dwarf::DW_TAG_ptr_to_member_type || |
| 764 | N.getTag() == dwarf::DW_TAG_reference_type || |
| 765 | N.getTag() == dwarf::DW_TAG_rvalue_reference_type || |
| 766 | N.getTag() == dwarf::DW_TAG_const_type || |
| 767 | N.getTag() == dwarf::DW_TAG_volatile_type || |
| 768 | N.getTag() == dwarf::DW_TAG_restrict_type || |
| 769 | N.getTag() == dwarf::DW_TAG_member || |
| 770 | N.getTag() == dwarf::DW_TAG_inheritance || |
| 771 | N.getTag() == dwarf::DW_TAG_friend, |
| 772 | "invalid tag", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | void Verifier::visitMDCompositeType(const MDCompositeType &N) { |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 776 | // Common derived type checks. |
| 777 | visitMDDerivedTypeBase(N); |
| 778 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 779 | Assert(N.getTag() == dwarf::DW_TAG_array_type || |
| 780 | N.getTag() == dwarf::DW_TAG_structure_type || |
| 781 | N.getTag() == dwarf::DW_TAG_union_type || |
| 782 | N.getTag() == dwarf::DW_TAG_enumeration_type || |
| 783 | N.getTag() == dwarf::DW_TAG_subroutine_type || |
| 784 | N.getTag() == dwarf::DW_TAG_class_type, |
| 785 | "invalid tag", &N); |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 786 | |
| 787 | Assert(!N.getRawElements() || isa<MDTuple>(N.getRawElements()), |
| 788 | "invalid composite elements", &N, N.getRawElements()); |
| 789 | Assert(isTypeRef(N.getRawVTableHolder()), "invalid vtable holder", &N, |
| 790 | N.getRawVTableHolder()); |
| 791 | Assert(!N.getRawElements() || isa<MDTuple>(N.getRawElements()), |
| 792 | "invalid composite elements", &N, N.getRawElements()); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 793 | } |
| 794 | |
| 795 | void Verifier::visitMDSubroutineType(const MDSubroutineType &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 796 | Assert(N.getTag() == dwarf::DW_TAG_subroutine_type, "invalid tag", &N); |
Duncan P. N. Exon Smith | a8b3a1f | 2015-03-28 02:43:53 +0000 | [diff] [blame] | 797 | if (auto *Types = N.getRawTypeArray()) { |
| 798 | Assert(isa<MDTuple>(Types), "invalid composite elements", &N, Types); |
| 799 | for (Metadata *Ty : N.getTypeArray()->operands()) { |
| 800 | Assert(isTypeRef(Ty), "invalid subroutine type ref", &N, Types, Ty); |
| 801 | } |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 802 | } |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 803 | } |
| 804 | |
| 805 | void Verifier::visitMDFile(const MDFile &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 806 | Assert(N.getTag() == dwarf::DW_TAG_file_type, "invalid tag", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 807 | } |
| 808 | |
| 809 | void Verifier::visitMDCompileUnit(const MDCompileUnit &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 810 | Assert(N.getTag() == dwarf::DW_TAG_compile_unit, "invalid tag", &N); |
Duncan P. N. Exon Smith | 53855f0 | 2015-03-27 23:05:04 +0000 | [diff] [blame] | 811 | |
| 812 | if (auto *Array = N.getRawEnumTypes()) { |
| 813 | Assert(isa<MDTuple>(Array), "invalid enum list", &N, Array); |
| 814 | for (Metadata *Op : N.getEnumTypes()->operands()) { |
| 815 | auto *Enum = dyn_cast_or_null<MDCompositeType>(Op); |
| 816 | Assert(Enum && Enum->getTag() == dwarf::DW_TAG_enumeration_type, |
| 817 | "invalid enum type", &N, N.getEnumTypes(), Op); |
| 818 | } |
| 819 | } |
| 820 | if (auto *Array = N.getRawRetainedTypes()) { |
| 821 | Assert(isa<MDTuple>(Array), "invalid retained type list", &N, Array); |
| 822 | for (Metadata *Op : N.getRetainedTypes()->operands()) { |
| 823 | Assert(Op && isa<MDType>(Op), "invalid retained type", &N, Op); |
| 824 | } |
| 825 | } |
| 826 | if (auto *Array = N.getRawSubprograms()) { |
| 827 | Assert(isa<MDTuple>(Array), "invalid subprogram list", &N, Array); |
| 828 | for (Metadata *Op : N.getSubprograms()->operands()) { |
| 829 | Assert(Op && isa<MDSubprogram>(Op), "invalid subprogram ref", &N, Op); |
| 830 | } |
| 831 | } |
| 832 | if (auto *Array = N.getRawGlobalVariables()) { |
| 833 | Assert(isa<MDTuple>(Array), "invalid global variable list", &N, Array); |
| 834 | for (Metadata *Op : N.getGlobalVariables()->operands()) { |
| 835 | Assert(Op && isa<MDGlobalVariable>(Op), "invalid global variable ref", &N, |
| 836 | Op); |
| 837 | } |
| 838 | } |
| 839 | if (auto *Array = N.getRawImportedEntities()) { |
| 840 | Assert(isa<MDTuple>(Array), "invalid imported entity list", &N, Array); |
| 841 | for (Metadata *Op : N.getImportedEntities()->operands()) { |
| 842 | Assert(Op && isa<MDImportedEntity>(Op), "invalid imported entity ref", &N, |
| 843 | Op); |
| 844 | } |
| 845 | } |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 846 | } |
| 847 | |
| 848 | void Verifier::visitMDSubprogram(const MDSubprogram &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 849 | Assert(N.getTag() == dwarf::DW_TAG_subprogram, "invalid tag", &N); |
Duncan P. N. Exon Smith | 869db50 | 2015-03-30 16:19:15 +0000 | [diff] [blame] | 850 | Assert(isScopeRef(N.getRawScope()), "invalid scope", &N, N.getRawScope()); |
| 851 | if (auto *T = N.getRawType()) |
| 852 | Assert(isa<MDSubroutineType>(T), "invalid subroutine type", &N, T); |
| 853 | Assert(isTypeRef(N.getRawContainingType()), "invalid containing type", &N, |
| 854 | N.getRawContainingType()); |
| 855 | if (auto *RawF = N.getRawFunction()) { |
| 856 | auto *FMD = dyn_cast<ConstantAsMetadata>(RawF); |
| 857 | auto *F = FMD ? FMD->getValue() : nullptr; |
| 858 | auto *FT = F ? dyn_cast<PointerType>(F->getType()) : nullptr; |
Duncan P. N. Exon Smith | 894b1e3 | 2015-03-30 17:04:06 +0000 | [diff] [blame] | 859 | Assert(F && FT && isa<FunctionType>(FT->getElementType()), |
| 860 | "invalid function", &N, F, FT); |
Duncan P. N. Exon Smith | 869db50 | 2015-03-30 16:19:15 +0000 | [diff] [blame] | 861 | } |
| 862 | if (N.getRawTemplateParams()) { |
| 863 | auto *Params = dyn_cast<MDTuple>(N.getRawTemplateParams()); |
| 864 | Assert(Params, "invalid template params", &N, Params); |
| 865 | for (Metadata *Op : Params->operands()) { |
| 866 | Assert(Op && isa<MDTemplateParameter>(Op), "invalid template parameter", |
| 867 | &N, Params, Op); |
| 868 | } |
| 869 | } |
| 870 | if (auto *S = N.getRawDeclaration()) { |
| 871 | Assert(isa<MDSubprogram>(S) && !cast<MDSubprogram>(S)->isDefinition(), |
| 872 | "invalid subprogram declaration", &N, S); |
| 873 | } |
| 874 | if (N.getRawVariables()) { |
| 875 | auto *Vars = dyn_cast<MDTuple>(N.getRawVariables()); |
| 876 | Assert(Vars, "invalid variable list", &N, Vars); |
| 877 | for (Metadata *Op : Vars->operands()) { |
| 878 | Assert(Op && isa<MDLocalVariable>(Op), "invalid local variable", &N, Vars, |
| 879 | Op); |
| 880 | } |
| 881 | } |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 882 | } |
| 883 | |
Duncan P. N. Exon Smith | 0e202b9 | 2015-03-30 16:37:48 +0000 | [diff] [blame] | 884 | void Verifier::visitMDLexicalBlockBase(const MDLexicalBlockBase &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 885 | Assert(N.getTag() == dwarf::DW_TAG_lexical_block, "invalid tag", &N); |
Duncan P. N. Exon Smith | 0e202b9 | 2015-03-30 16:37:48 +0000 | [diff] [blame] | 886 | Assert(N.getRawScope() && isa<MDLocalScope>(N.getRawScope()), |
| 887 | "invalid local scope", &N, N.getRawScope()); |
| 888 | } |
| 889 | |
| 890 | void Verifier::visitMDLexicalBlock(const MDLexicalBlock &N) { |
| 891 | visitMDLexicalBlockBase(N); |
| 892 | |
| 893 | Assert(N.getLine() || !N.getColumn(), |
| 894 | "cannot have column info without line info", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 895 | } |
| 896 | |
| 897 | void Verifier::visitMDLexicalBlockFile(const MDLexicalBlockFile &N) { |
Duncan P. N. Exon Smith | 0e202b9 | 2015-03-30 16:37:48 +0000 | [diff] [blame] | 898 | visitMDLexicalBlockBase(N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 899 | } |
| 900 | |
| 901 | void Verifier::visitMDNamespace(const MDNamespace &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 902 | Assert(N.getTag() == dwarf::DW_TAG_namespace, "invalid tag", &N); |
Duncan P. N. Exon Smith | f9b4775 | 2015-03-30 17:21:38 +0000 | [diff] [blame^] | 903 | if (auto *S = N.getRawScope()) |
| 904 | Assert(isa<MDScope>(S), "invalid scope ref", &N, S); |
| 905 | } |
| 906 | |
| 907 | void Verifier::visitMDTemplateParameter(const MDTemplateParameter &N) { |
| 908 | Assert(isTypeRef(N.getType()), "invalid type ref", &N, N.getType()); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 909 | } |
| 910 | |
| 911 | void Verifier::visitMDTemplateTypeParameter(const MDTemplateTypeParameter &N) { |
Duncan P. N. Exon Smith | f9b4775 | 2015-03-30 17:21:38 +0000 | [diff] [blame^] | 912 | visitMDTemplateParameter(N); |
| 913 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 914 | Assert(N.getTag() == dwarf::DW_TAG_template_type_parameter, "invalid tag", |
| 915 | &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 916 | } |
| 917 | |
| 918 | void Verifier::visitMDTemplateValueParameter( |
| 919 | const MDTemplateValueParameter &N) { |
Duncan P. N. Exon Smith | f9b4775 | 2015-03-30 17:21:38 +0000 | [diff] [blame^] | 920 | visitMDTemplateParameter(N); |
| 921 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 922 | Assert(N.getTag() == dwarf::DW_TAG_template_value_parameter || |
| 923 | N.getTag() == dwarf::DW_TAG_GNU_template_template_param || |
| 924 | N.getTag() == dwarf::DW_TAG_GNU_template_parameter_pack, |
| 925 | "invalid tag", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 926 | } |
| 927 | |
Duncan P. N. Exon Smith | 3d2afaa | 2015-03-27 17:29:58 +0000 | [diff] [blame] | 928 | void Verifier::visitMDVariable(const MDVariable &N) { |
| 929 | if (auto *S = N.getRawScope()) |
| 930 | Assert(isa<MDScope>(S), "invalid scope", &N, S); |
| 931 | Assert(isTypeRef(N.getRawType()), "invalid type ref", &N, N.getRawType()); |
| 932 | if (auto *F = N.getRawFile()) |
| 933 | Assert(isa<MDFile>(F), "invalid file", &N, F); |
| 934 | } |
| 935 | |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 936 | void Verifier::visitMDGlobalVariable(const MDGlobalVariable &N) { |
Duncan P. N. Exon Smith | 3d2afaa | 2015-03-27 17:29:58 +0000 | [diff] [blame] | 937 | // Checks common to all variables. |
| 938 | visitMDVariable(N); |
| 939 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 940 | Assert(N.getTag() == dwarf::DW_TAG_variable, "invalid tag", &N); |
Duncan P. N. Exon Smith | 3d2afaa | 2015-03-27 17:29:58 +0000 | [diff] [blame] | 941 | if (auto *V = N.getRawVariable()) { |
| 942 | Assert(isa<ConstantAsMetadata>(V) && |
| 943 | !isa<Function>(cast<ConstantAsMetadata>(V)->getValue()), |
| 944 | "invalid global varaible ref", &N, V); |
| 945 | } |
| 946 | if (auto *Member = N.getRawStaticDataMemberDeclaration()) { |
| 947 | Assert(isa<MDDerivedType>(Member), "invalid static data member declaration", |
| 948 | &N, Member); |
| 949 | } |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 950 | } |
| 951 | |
| 952 | void Verifier::visitMDLocalVariable(const MDLocalVariable &N) { |
Duncan P. N. Exon Smith | 3d2afaa | 2015-03-27 17:29:58 +0000 | [diff] [blame] | 953 | // Checks common to all variables. |
| 954 | visitMDVariable(N); |
| 955 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 956 | Assert(N.getTag() == dwarf::DW_TAG_auto_variable || |
| 957 | N.getTag() == dwarf::DW_TAG_arg_variable, |
| 958 | "invalid tag", &N); |
Duncan P. N. Exon Smith | 3d2afaa | 2015-03-27 17:29:58 +0000 | [diff] [blame] | 959 | Assert(N.getRawScope() && isa<MDLocalScope>(N.getRawScope()), |
| 960 | "local variable requires a valid scope", &N, N.getRawScope()); |
| 961 | if (auto *IA = N.getRawInlinedAt()) |
| 962 | Assert(isa<MDLocation>(IA), "local variable requires a valid scope", &N, |
| 963 | IA); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 964 | } |
| 965 | |
| 966 | void Verifier::visitMDExpression(const MDExpression &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 967 | Assert(N.isValid(), "invalid expression", &N); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 968 | } |
| 969 | |
| 970 | void Verifier::visitMDObjCProperty(const MDObjCProperty &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 971 | Assert(N.getTag() == dwarf::DW_TAG_APPLE_property, "invalid tag", &N); |
Duncan P. N. Exon Smith | f9b4775 | 2015-03-30 17:21:38 +0000 | [diff] [blame^] | 972 | if (auto *T = N.getRawType()) |
| 973 | Assert(isa<MDType>(T), "invalid type ref", &N, T); |
| 974 | if (auto *F = N.getRawFile()) |
| 975 | Assert(isa<MDFile>(F), "invalid file", &N, F); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 976 | } |
| 977 | |
| 978 | void Verifier::visitMDImportedEntity(const MDImportedEntity &N) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 979 | Assert(N.getTag() == dwarf::DW_TAG_imported_module || |
| 980 | N.getTag() == dwarf::DW_TAG_imported_declaration, |
| 981 | "invalid tag", &N); |
Duncan P. N. Exon Smith | f9b4775 | 2015-03-30 17:21:38 +0000 | [diff] [blame^] | 982 | if (auto *S = N.getRawScope()) |
| 983 | Assert(isa<MDScope>(S), "invalid scope for imported entity", &N, S); |
| 984 | Assert(isDIRef(N.getEntity()), "invalid imported entity", &N, N.getEntity()); |
Duncan P. N. Exon Smith | e4725be | 2015-02-10 01:40:40 +0000 | [diff] [blame] | 985 | } |
Duncan P. N. Exon Smith | b0a19ad | 2015-02-10 01:09:50 +0000 | [diff] [blame] | 986 | |
David Majnemer | dad0a64 | 2014-06-27 18:19:56 +0000 | [diff] [blame] | 987 | void Verifier::visitComdat(const Comdat &C) { |
David Majnemer | ebc7411 | 2014-07-13 04:56:11 +0000 | [diff] [blame] | 988 | // The Module is invalid if the GlobalValue has private linkage. Entities |
| 989 | // with private linkage don't have entries in the symbol table. |
David Majnemer | ab45781 | 2015-02-20 19:58:48 +0000 | [diff] [blame] | 990 | if (const GlobalValue *GV = M->getNamedValue(C.getName())) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 991 | Assert(!GV->hasPrivateLinkage(), "comdat global value has private linkage", |
| 992 | GV); |
David Majnemer | dad0a64 | 2014-06-27 18:19:56 +0000 | [diff] [blame] | 993 | } |
| 994 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 995 | void Verifier::visitModuleIdents(const Module &M) { |
Rafael Espindola | 0018a59 | 2013-10-16 01:49:05 +0000 | [diff] [blame] | 996 | const NamedMDNode *Idents = M.getNamedMetadata("llvm.ident"); |
| 997 | if (!Idents) |
| 998 | return; |
| 999 | |
| 1000 | // llvm.ident takes a list of metadata entry. Each entry has only one string. |
| 1001 | // Scan each llvm.ident entry and make sure that this requirement is met. |
| 1002 | for (unsigned i = 0, e = Idents->getNumOperands(); i != e; ++i) { |
Duncan P. N. Exon Smith | de36e80 | 2014-11-11 21:30:22 +0000 | [diff] [blame] | 1003 | const MDNode *N = Idents->getOperand(i); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1004 | Assert(N->getNumOperands() == 1, |
| 1005 | "incorrect number of operands in llvm.ident metadata", N); |
| 1006 | Assert(dyn_cast_or_null<MDString>(N->getOperand(0)), |
| 1007 | ("invalid value for llvm.ident metadata entry operand" |
| 1008 | "(the operand should be a string)"), |
| 1009 | N->getOperand(0)); |
Rafael Espindola | 0018a59 | 2013-10-16 01:49:05 +0000 | [diff] [blame] | 1010 | } |
| 1011 | } |
| 1012 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1013 | void Verifier::visitModuleFlags(const Module &M) { |
Daniel Dunbar | 25c4b57 | 2013-01-15 01:22:53 +0000 | [diff] [blame] | 1014 | const NamedMDNode *Flags = M.getModuleFlagsMetadata(); |
| 1015 | if (!Flags) return; |
| 1016 | |
Daniel Dunbar | c36547d | 2013-01-15 20:52:06 +0000 | [diff] [blame] | 1017 | // Scan each flag, and track the flags and requirements. |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1018 | DenseMap<const MDString*, const MDNode*> SeenIDs; |
| 1019 | SmallVector<const MDNode*, 16> Requirements; |
Daniel Dunbar | 25c4b57 | 2013-01-15 01:22:53 +0000 | [diff] [blame] | 1020 | for (unsigned I = 0, E = Flags->getNumOperands(); I != E; ++I) { |
Duncan P. N. Exon Smith | de36e80 | 2014-11-11 21:30:22 +0000 | [diff] [blame] | 1021 | visitModuleFlag(Flags->getOperand(I), SeenIDs, Requirements); |
Daniel Dunbar | c36547d | 2013-01-15 20:52:06 +0000 | [diff] [blame] | 1022 | } |
| 1023 | |
| 1024 | // Validate that the requirements in the module are valid. |
| 1025 | for (unsigned I = 0, E = Requirements.size(); I != E; ++I) { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1026 | const MDNode *Requirement = Requirements[I]; |
| 1027 | const MDString *Flag = cast<MDString>(Requirement->getOperand(0)); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 1028 | const Metadata *ReqValue = Requirement->getOperand(1); |
Daniel Dunbar | c36547d | 2013-01-15 20:52:06 +0000 | [diff] [blame] | 1029 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1030 | const MDNode *Op = SeenIDs.lookup(Flag); |
Daniel Dunbar | c36547d | 2013-01-15 20:52:06 +0000 | [diff] [blame] | 1031 | if (!Op) { |
| 1032 | CheckFailed("invalid requirement on flag, flag is not present in module", |
| 1033 | Flag); |
| 1034 | continue; |
| 1035 | } |
| 1036 | |
| 1037 | if (Op->getOperand(2) != ReqValue) { |
| 1038 | CheckFailed(("invalid requirement on flag, " |
| 1039 | "flag does not have the required value"), |
| 1040 | Flag); |
| 1041 | continue; |
| 1042 | } |
Daniel Dunbar | 25c4b57 | 2013-01-15 01:22:53 +0000 | [diff] [blame] | 1043 | } |
| 1044 | } |
| 1045 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1046 | void |
| 1047 | Verifier::visitModuleFlag(const MDNode *Op, |
| 1048 | DenseMap<const MDString *, const MDNode *> &SeenIDs, |
| 1049 | SmallVectorImpl<const MDNode *> &Requirements) { |
Daniel Dunbar | 25c4b57 | 2013-01-15 01:22:53 +0000 | [diff] [blame] | 1050 | // Each module flag should have three arguments, the merge behavior (a |
| 1051 | // constant int), the flag ID (an MDString), and the value. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1052 | Assert(Op->getNumOperands() == 3, |
| 1053 | "incorrect number of operands in module flag", Op); |
Alexey Samsonov | af023ad | 2014-09-08 19:16:28 +0000 | [diff] [blame] | 1054 | Module::ModFlagBehavior MFB; |
| 1055 | if (!Module::isValidModFlagBehavior(Op->getOperand(0), MFB)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1056 | Assert( |
David Majnemer | d7677e7 | 2015-02-11 09:13:06 +0000 | [diff] [blame] | 1057 | mdconst::dyn_extract_or_null<ConstantInt>(Op->getOperand(0)), |
Alexey Samsonov | af023ad | 2014-09-08 19:16:28 +0000 | [diff] [blame] | 1058 | "invalid behavior operand in module flag (expected constant integer)", |
| 1059 | Op->getOperand(0)); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1060 | Assert(false, |
| 1061 | "invalid behavior operand in module flag (unexpected constant)", |
| 1062 | Op->getOperand(0)); |
Alexey Samsonov | af023ad | 2014-09-08 19:16:28 +0000 | [diff] [blame] | 1063 | } |
David Majnemer | 04b4ed3 | 2015-02-16 08:14:22 +0000 | [diff] [blame] | 1064 | MDString *ID = dyn_cast_or_null<MDString>(Op->getOperand(1)); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1065 | Assert(ID, "invalid ID operand in module flag (expected metadata string)", |
| 1066 | Op->getOperand(1)); |
Daniel Dunbar | 25c4b57 | 2013-01-15 01:22:53 +0000 | [diff] [blame] | 1067 | |
Daniel Dunbar | d77d9fb | 2013-01-16 21:38:56 +0000 | [diff] [blame] | 1068 | // Sanity check the values for behaviors with additional requirements. |
Alexey Samsonov | af023ad | 2014-09-08 19:16:28 +0000 | [diff] [blame] | 1069 | switch (MFB) { |
Daniel Dunbar | d77d9fb | 2013-01-16 21:38:56 +0000 | [diff] [blame] | 1070 | case Module::Error: |
| 1071 | case Module::Warning: |
| 1072 | case Module::Override: |
| 1073 | // These behavior types accept any value. |
| 1074 | break; |
| 1075 | |
| 1076 | case Module::Require: { |
Daniel Dunbar | 25c4b57 | 2013-01-15 01:22:53 +0000 | [diff] [blame] | 1077 | // The value should itself be an MDNode with two operands, a flag ID (an |
| 1078 | // MDString), and a value. |
| 1079 | MDNode *Value = dyn_cast<MDNode>(Op->getOperand(2)); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1080 | Assert(Value && Value->getNumOperands() == 2, |
| 1081 | "invalid value for 'require' module flag (expected metadata pair)", |
| 1082 | Op->getOperand(2)); |
| 1083 | Assert(isa<MDString>(Value->getOperand(0)), |
| 1084 | ("invalid value for 'require' module flag " |
| 1085 | "(first value operand should be a string)"), |
| 1086 | Value->getOperand(0)); |
Daniel Dunbar | c36547d | 2013-01-15 20:52:06 +0000 | [diff] [blame] | 1087 | |
| 1088 | // Append it to the list of requirements, to check once all module flags are |
| 1089 | // scanned. |
| 1090 | Requirements.push_back(Value); |
Daniel Dunbar | d77d9fb | 2013-01-16 21:38:56 +0000 | [diff] [blame] | 1091 | break; |
| 1092 | } |
| 1093 | |
| 1094 | case Module::Append: |
| 1095 | case Module::AppendUnique: { |
| 1096 | // These behavior types require the operand be an MDNode. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1097 | Assert(isa<MDNode>(Op->getOperand(2)), |
| 1098 | "invalid value for 'append'-type module flag " |
| 1099 | "(expected a metadata node)", |
| 1100 | Op->getOperand(2)); |
Daniel Dunbar | d77d9fb | 2013-01-16 21:38:56 +0000 | [diff] [blame] | 1101 | break; |
| 1102 | } |
| 1103 | } |
| 1104 | |
| 1105 | // Unless this is a "requires" flag, check the ID is unique. |
Alexey Samsonov | af023ad | 2014-09-08 19:16:28 +0000 | [diff] [blame] | 1106 | if (MFB != Module::Require) { |
Daniel Dunbar | d77d9fb | 2013-01-16 21:38:56 +0000 | [diff] [blame] | 1107 | bool Inserted = SeenIDs.insert(std::make_pair(ID, Op)).second; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1108 | Assert(Inserted, |
| 1109 | "module flag identifiers must be unique (or of 'require' type)", ID); |
Daniel Dunbar | 25c4b57 | 2013-01-15 01:22:53 +0000 | [diff] [blame] | 1110 | } |
| 1111 | } |
| 1112 | |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1113 | void Verifier::VerifyAttributeTypes(AttributeSet Attrs, unsigned Idx, |
Nick Lewycky | c2ec072 | 2013-07-06 00:29:58 +0000 | [diff] [blame] | 1114 | bool isFunction, const Value *V) { |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1115 | unsigned Slot = ~0U; |
| 1116 | for (unsigned I = 0, E = Attrs.getNumSlots(); I != E; ++I) |
| 1117 | if (Attrs.getSlotIndex(I) == Idx) { |
| 1118 | Slot = I; |
| 1119 | break; |
| 1120 | } |
| 1121 | |
| 1122 | assert(Slot != ~0U && "Attribute set inconsistency!"); |
| 1123 | |
| 1124 | for (AttributeSet::iterator I = Attrs.begin(Slot), E = Attrs.end(Slot); |
| 1125 | I != E; ++I) { |
| 1126 | if (I->isStringAttribute()) |
| 1127 | continue; |
| 1128 | |
| 1129 | if (I->getKindAsEnum() == Attribute::NoReturn || |
| 1130 | I->getKindAsEnum() == Attribute::NoUnwind || |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1131 | I->getKindAsEnum() == Attribute::NoInline || |
| 1132 | I->getKindAsEnum() == Attribute::AlwaysInline || |
| 1133 | I->getKindAsEnum() == Attribute::OptimizeForSize || |
| 1134 | I->getKindAsEnum() == Attribute::StackProtect || |
| 1135 | I->getKindAsEnum() == Attribute::StackProtectReq || |
| 1136 | I->getKindAsEnum() == Attribute::StackProtectStrong || |
| 1137 | I->getKindAsEnum() == Attribute::NoRedZone || |
| 1138 | I->getKindAsEnum() == Attribute::NoImplicitFloat || |
| 1139 | I->getKindAsEnum() == Attribute::Naked || |
| 1140 | I->getKindAsEnum() == Attribute::InlineHint || |
| 1141 | I->getKindAsEnum() == Attribute::StackAlignment || |
| 1142 | I->getKindAsEnum() == Attribute::UWTable || |
| 1143 | I->getKindAsEnum() == Attribute::NonLazyBind || |
| 1144 | I->getKindAsEnum() == Attribute::ReturnsTwice || |
| 1145 | I->getKindAsEnum() == Attribute::SanitizeAddress || |
| 1146 | I->getKindAsEnum() == Attribute::SanitizeThread || |
| 1147 | I->getKindAsEnum() == Attribute::SanitizeMemory || |
| 1148 | I->getKindAsEnum() == Attribute::MinSize || |
| 1149 | I->getKindAsEnum() == Attribute::NoDuplicate || |
Michael Gottesman | 41748d7 | 2013-06-27 00:25:01 +0000 | [diff] [blame] | 1150 | I->getKindAsEnum() == Attribute::Builtin || |
Diego Novillo | c639953 | 2013-05-24 12:26:52 +0000 | [diff] [blame] | 1151 | I->getKindAsEnum() == Attribute::NoBuiltin || |
Andrea Di Biagio | 377496b | 2013-08-23 11:53:55 +0000 | [diff] [blame] | 1152 | I->getKindAsEnum() == Attribute::Cold || |
Tom Roeder | 44cb65f | 2014-06-05 19:29:43 +0000 | [diff] [blame] | 1153 | I->getKindAsEnum() == Attribute::OptimizeNone || |
| 1154 | I->getKindAsEnum() == Attribute::JumpTable) { |
Tobias Grosser | effd02c | 2013-07-02 03:28:10 +0000 | [diff] [blame] | 1155 | if (!isFunction) { |
Nick Lewycky | c2ec072 | 2013-07-06 00:29:58 +0000 | [diff] [blame] | 1156 | CheckFailed("Attribute '" + I->getAsString() + |
| 1157 | "' only applies to functions!", V); |
| 1158 | return; |
| 1159 | } |
| 1160 | } else if (I->getKindAsEnum() == Attribute::ReadOnly || |
| 1161 | I->getKindAsEnum() == Attribute::ReadNone) { |
| 1162 | if (Idx == 0) { |
| 1163 | CheckFailed("Attribute '" + I->getAsString() + |
| 1164 | "' does not apply to function returns"); |
| 1165 | return; |
Tobias Grosser | effd02c | 2013-07-02 03:28:10 +0000 | [diff] [blame] | 1166 | } |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1167 | } else if (isFunction) { |
Nick Lewycky | c2ec072 | 2013-07-06 00:29:58 +0000 | [diff] [blame] | 1168 | CheckFailed("Attribute '" + I->getAsString() + |
| 1169 | "' does not apply to functions!", V); |
| 1170 | return; |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1171 | } |
| 1172 | } |
| 1173 | } |
| 1174 | |
Duncan Sands | c3a7992 | 2009-06-11 08:11:03 +0000 | [diff] [blame] | 1175 | // VerifyParameterAttrs - Check the given attributes for an argument or return |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 1176 | // value of the specified type. The value V is printed in error messages. |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1177 | void Verifier::VerifyParameterAttrs(AttributeSet Attrs, unsigned Idx, Type *Ty, |
Duncan Sands | c3a7992 | 2009-06-11 08:11:03 +0000 | [diff] [blame] | 1178 | bool isReturnValue, const Value *V) { |
Bill Wendling | e183597 | 2013-01-21 23:03:18 +0000 | [diff] [blame] | 1179 | if (!Attrs.hasAttributes(Idx)) |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 1180 | return; |
| 1181 | |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1182 | VerifyAttributeTypes(Attrs, Idx, false, V); |
Duncan Sands | c3a7992 | 2009-06-11 08:11:03 +0000 | [diff] [blame] | 1183 | |
Bill Wendling | 908126a | 2012-10-09 09:51:10 +0000 | [diff] [blame] | 1184 | if (isReturnValue) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1185 | Assert(!Attrs.hasAttribute(Idx, Attribute::ByVal) && |
| 1186 | !Attrs.hasAttribute(Idx, Attribute::Nest) && |
| 1187 | !Attrs.hasAttribute(Idx, Attribute::StructRet) && |
| 1188 | !Attrs.hasAttribute(Idx, Attribute::NoCapture) && |
| 1189 | !Attrs.hasAttribute(Idx, Attribute::Returned) && |
| 1190 | !Attrs.hasAttribute(Idx, Attribute::InAlloca), |
| 1191 | "Attributes 'byval', 'inalloca', 'nest', 'sret', 'nocapture', and " |
| 1192 | "'returned' do not apply to return values!", |
| 1193 | V); |
Duncan Sands | c3a7992 | 2009-06-11 08:11:03 +0000 | [diff] [blame] | 1194 | |
Reid Kleckner | a534a38 | 2013-12-19 02:14:12 +0000 | [diff] [blame] | 1195 | // Check for mutually incompatible attributes. Only inreg is compatible with |
| 1196 | // sret. |
| 1197 | unsigned AttrCount = 0; |
| 1198 | AttrCount += Attrs.hasAttribute(Idx, Attribute::ByVal); |
| 1199 | AttrCount += Attrs.hasAttribute(Idx, Attribute::InAlloca); |
| 1200 | AttrCount += Attrs.hasAttribute(Idx, Attribute::StructRet) || |
| 1201 | Attrs.hasAttribute(Idx, Attribute::InReg); |
| 1202 | AttrCount += Attrs.hasAttribute(Idx, Attribute::Nest); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1203 | Assert(AttrCount <= 1, "Attributes 'byval', 'inalloca', 'inreg', 'nest', " |
| 1204 | "and 'sret' are incompatible!", |
| 1205 | V); |
Bill Wendling | 9864a65 | 2012-10-09 20:11:19 +0000 | [diff] [blame] | 1206 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1207 | Assert(!(Attrs.hasAttribute(Idx, Attribute::InAlloca) && |
| 1208 | Attrs.hasAttribute(Idx, Attribute::ReadOnly)), |
| 1209 | "Attributes " |
| 1210 | "'inalloca and readonly' are incompatible!", |
| 1211 | V); |
Bill Wendling | 9864a65 | 2012-10-09 20:11:19 +0000 | [diff] [blame] | 1212 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1213 | Assert(!(Attrs.hasAttribute(Idx, Attribute::StructRet) && |
| 1214 | Attrs.hasAttribute(Idx, Attribute::Returned)), |
| 1215 | "Attributes " |
| 1216 | "'sret and returned' are incompatible!", |
| 1217 | V); |
Stephen Lin | 6c70dc7 | 2013-04-23 16:31:56 +0000 | [diff] [blame] | 1218 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1219 | Assert(!(Attrs.hasAttribute(Idx, Attribute::ZExt) && |
| 1220 | Attrs.hasAttribute(Idx, Attribute::SExt)), |
| 1221 | "Attributes " |
| 1222 | "'zeroext and signext' are incompatible!", |
| 1223 | V); |
Bill Wendling | 9864a65 | 2012-10-09 20:11:19 +0000 | [diff] [blame] | 1224 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1225 | Assert(!(Attrs.hasAttribute(Idx, Attribute::ReadNone) && |
| 1226 | Attrs.hasAttribute(Idx, Attribute::ReadOnly)), |
| 1227 | "Attributes " |
| 1228 | "'readnone and readonly' are incompatible!", |
| 1229 | V); |
Bill Wendling | 9864a65 | 2012-10-09 20:11:19 +0000 | [diff] [blame] | 1230 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1231 | Assert(!(Attrs.hasAttribute(Idx, Attribute::NoInline) && |
| 1232 | Attrs.hasAttribute(Idx, Attribute::AlwaysInline)), |
| 1233 | "Attributes " |
| 1234 | "'noinline and alwaysinline' are incompatible!", |
| 1235 | V); |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 1236 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1237 | Assert(!AttrBuilder(Attrs, Idx) |
| 1238 | .hasAttributes(AttributeFuncs::typeIncompatible(Ty, Idx), Idx), |
| 1239 | "Wrong types for attribute: " + |
| 1240 | AttributeFuncs::typeIncompatible(Ty, Idx).getAsString(Idx), |
| 1241 | V); |
Dan Gohman | 6d61872 | 2008-08-27 14:48:06 +0000 | [diff] [blame] | 1242 | |
Reid Kleckner | a534a38 | 2013-12-19 02:14:12 +0000 | [diff] [blame] | 1243 | if (PointerType *PTy = dyn_cast<PointerType>(Ty)) { |
Owen Anderson | 08f46e1 | 2015-03-13 06:41:26 +0000 | [diff] [blame] | 1244 | SmallPtrSet<const Type*, 4> Visited; |
| 1245 | if (!PTy->getElementType()->isSized(&Visited)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1246 | Assert(!Attrs.hasAttribute(Idx, Attribute::ByVal) && |
| 1247 | !Attrs.hasAttribute(Idx, Attribute::InAlloca), |
| 1248 | "Attributes 'byval' and 'inalloca' do not support unsized types!", |
| 1249 | V); |
Reid Kleckner | a534a38 | 2013-12-19 02:14:12 +0000 | [diff] [blame] | 1250 | } |
| 1251 | } else { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1252 | Assert(!Attrs.hasAttribute(Idx, Attribute::ByVal), |
| 1253 | "Attribute 'byval' only applies to parameters with pointer type!", |
| 1254 | V); |
Reid Kleckner | a534a38 | 2013-12-19 02:14:12 +0000 | [diff] [blame] | 1255 | } |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 1256 | } |
| 1257 | |
| 1258 | // VerifyFunctionAttrs - Check parameter attributes against a function type. |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1259 | // The value V is printed in error messages. |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1260 | void Verifier::VerifyFunctionAttrs(FunctionType *FT, AttributeSet Attrs, |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 1261 | const Value *V) { |
Chris Lattner | 8a923e7 | 2008-03-12 17:45:29 +0000 | [diff] [blame] | 1262 | if (Attrs.isEmpty()) |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1263 | return; |
| 1264 | |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1265 | bool SawNest = false; |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 1266 | bool SawReturned = false; |
Reid Kleckner | 7941856 | 2014-05-09 22:32:13 +0000 | [diff] [blame] | 1267 | bool SawSRet = false; |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1268 | |
Chris Lattner | 8a923e7 | 2008-03-12 17:45:29 +0000 | [diff] [blame] | 1269 | for (unsigned i = 0, e = Attrs.getNumSlots(); i != e; ++i) { |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1270 | unsigned Idx = Attrs.getSlotIndex(i); |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1271 | |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1272 | Type *Ty; |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1273 | if (Idx == 0) |
Chris Lattner | 8a923e7 | 2008-03-12 17:45:29 +0000 | [diff] [blame] | 1274 | Ty = FT->getReturnType(); |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1275 | else if (Idx-1 < FT->getNumParams()) |
| 1276 | Ty = FT->getParamType(Idx-1); |
Chris Lattner | 8a923e7 | 2008-03-12 17:45:29 +0000 | [diff] [blame] | 1277 | else |
Duncan Sands | c3a7992 | 2009-06-11 08:11:03 +0000 | [diff] [blame] | 1278 | break; // VarArgs attributes, verified elsewhere. |
| 1279 | |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1280 | VerifyParameterAttrs(Attrs, Idx, Ty, Idx == 0, V); |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1281 | |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 1282 | if (Idx == 0) |
| 1283 | continue; |
| 1284 | |
| 1285 | if (Attrs.hasAttribute(Idx, Attribute::Nest)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1286 | Assert(!SawNest, "More than one parameter has attribute nest!", V); |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1287 | SawNest = true; |
| 1288 | } |
| 1289 | |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 1290 | if (Attrs.hasAttribute(Idx, Attribute::Returned)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1291 | Assert(!SawReturned, "More than one parameter has attribute returned!", |
| 1292 | V); |
| 1293 | Assert(Ty->canLosslesslyBitCastTo(FT->getReturnType()), |
| 1294 | "Incompatible " |
| 1295 | "argument and return types for 'returned' attribute", |
| 1296 | V); |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 1297 | SawReturned = true; |
| 1298 | } |
| 1299 | |
Reid Kleckner | 7941856 | 2014-05-09 22:32:13 +0000 | [diff] [blame] | 1300 | if (Attrs.hasAttribute(Idx, Attribute::StructRet)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1301 | Assert(!SawSRet, "Cannot have multiple 'sret' parameters!", V); |
| 1302 | Assert(Idx == 1 || Idx == 2, |
| 1303 | "Attribute 'sret' is not on first or second parameter!", V); |
Reid Kleckner | 7941856 | 2014-05-09 22:32:13 +0000 | [diff] [blame] | 1304 | SawSRet = true; |
| 1305 | } |
Reid Kleckner | 60d3a83 | 2014-01-16 22:59:24 +0000 | [diff] [blame] | 1306 | |
| 1307 | if (Attrs.hasAttribute(Idx, Attribute::InAlloca)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1308 | Assert(Idx == FT->getNumParams(), "inalloca isn't on the last parameter!", |
| 1309 | V); |
Reid Kleckner | 60d3a83 | 2014-01-16 22:59:24 +0000 | [diff] [blame] | 1310 | } |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1311 | } |
Devang Patel | 9cc9812 | 2008-10-01 23:41:25 +0000 | [diff] [blame] | 1312 | |
Bill Wendling | 7754389 | 2013-01-18 21:11:39 +0000 | [diff] [blame] | 1313 | if (!Attrs.hasAttributes(AttributeSet::FunctionIndex)) |
| 1314 | return; |
| 1315 | |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1316 | VerifyAttributeTypes(Attrs, AttributeSet::FunctionIndex, true, V); |
Bill Wendling | 9864a65 | 2012-10-09 20:11:19 +0000 | [diff] [blame] | 1317 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1318 | Assert( |
| 1319 | !(Attrs.hasAttribute(AttributeSet::FunctionIndex, Attribute::ReadNone) && |
| 1320 | Attrs.hasAttribute(AttributeSet::FunctionIndex, Attribute::ReadOnly)), |
| 1321 | "Attributes 'readnone and readonly' are incompatible!", V); |
Bill Wendling | 9864a65 | 2012-10-09 20:11:19 +0000 | [diff] [blame] | 1322 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1323 | Assert( |
| 1324 | !(Attrs.hasAttribute(AttributeSet::FunctionIndex, Attribute::NoInline) && |
| 1325 | Attrs.hasAttribute(AttributeSet::FunctionIndex, |
| 1326 | Attribute::AlwaysInline)), |
| 1327 | "Attributes 'noinline and alwaysinline' are incompatible!", V); |
Andrea Di Biagio | 377496b | 2013-08-23 11:53:55 +0000 | [diff] [blame] | 1328 | |
| 1329 | if (Attrs.hasAttribute(AttributeSet::FunctionIndex, |
| 1330 | Attribute::OptimizeNone)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1331 | Assert(Attrs.hasAttribute(AttributeSet::FunctionIndex, Attribute::NoInline), |
| 1332 | "Attribute 'optnone' requires 'noinline'!", V); |
Andrea Di Biagio | 377496b | 2013-08-23 11:53:55 +0000 | [diff] [blame] | 1333 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1334 | Assert(!Attrs.hasAttribute(AttributeSet::FunctionIndex, |
| 1335 | Attribute::OptimizeForSize), |
| 1336 | "Attributes 'optsize and optnone' are incompatible!", V); |
Andrea Di Biagio | 377496b | 2013-08-23 11:53:55 +0000 | [diff] [blame] | 1337 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1338 | Assert(!Attrs.hasAttribute(AttributeSet::FunctionIndex, Attribute::MinSize), |
| 1339 | "Attributes 'minsize and optnone' are incompatible!", V); |
Andrea Di Biagio | 377496b | 2013-08-23 11:53:55 +0000 | [diff] [blame] | 1340 | } |
Tom Roeder | 44cb65f | 2014-06-05 19:29:43 +0000 | [diff] [blame] | 1341 | |
| 1342 | if (Attrs.hasAttribute(AttributeSet::FunctionIndex, |
| 1343 | Attribute::JumpTable)) { |
| 1344 | const GlobalValue *GV = cast<GlobalValue>(V); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1345 | Assert(GV->hasUnnamedAddr(), |
| 1346 | "Attribute 'jumptable' requires 'unnamed_addr'", V); |
Tom Roeder | 44cb65f | 2014-06-05 19:29:43 +0000 | [diff] [blame] | 1347 | } |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1348 | } |
| 1349 | |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 1350 | void Verifier::VerifyConstantExprBitcastType(const ConstantExpr *CE) { |
Rafael Espindola | a4a94f1 | 2014-12-16 19:29:29 +0000 | [diff] [blame] | 1351 | if (CE->getOpcode() != Instruction::BitCast) |
| 1352 | return; |
| 1353 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1354 | Assert(CastInst::castIsValid(Instruction::BitCast, CE->getOperand(0), |
| 1355 | CE->getType()), |
| 1356 | "Invalid bitcast", CE); |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 1357 | } |
| 1358 | |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1359 | bool Verifier::VerifyAttributeCount(AttributeSet Attrs, unsigned Params) { |
Bill Wendling | 0aed113 | 2013-01-30 06:54:41 +0000 | [diff] [blame] | 1360 | if (Attrs.getNumSlots() == 0) |
Devang Patel | 82fed67 | 2008-09-23 22:35:17 +0000 | [diff] [blame] | 1361 | return true; |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 1362 | |
Devang Patel | 82fed67 | 2008-09-23 22:35:17 +0000 | [diff] [blame] | 1363 | unsigned LastSlot = Attrs.getNumSlots() - 1; |
Bill Wendling | 25e65a6 | 2013-01-25 21:30:53 +0000 | [diff] [blame] | 1364 | unsigned LastIndex = Attrs.getSlotIndex(LastSlot); |
Devang Patel | 82fed67 | 2008-09-23 22:35:17 +0000 | [diff] [blame] | 1365 | if (LastIndex <= Params |
Bill Wendling | 25e65a6 | 2013-01-25 21:30:53 +0000 | [diff] [blame] | 1366 | || (LastIndex == AttributeSet::FunctionIndex |
| 1367 | && (LastSlot == 0 || Attrs.getSlotIndex(LastSlot - 1) <= Params))) |
Devang Patel | 82fed67 | 2008-09-23 22:35:17 +0000 | [diff] [blame] | 1368 | return true; |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 1369 | |
Devang Patel | 82fed67 | 2008-09-23 22:35:17 +0000 | [diff] [blame] | 1370 | return false; |
| 1371 | } |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 1372 | |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1373 | /// \brief Verify that statepoint intrinsic is well formed. |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1374 | void Verifier::VerifyStatepoint(ImmutableCallSite CS) { |
| 1375 | assert(CS.getCalledFunction() && |
| 1376 | CS.getCalledFunction()->getIntrinsicID() == |
| 1377 | Intrinsic::experimental_gc_statepoint); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1378 | |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1379 | const Instruction &CI = *CS.getInstruction(); |
| 1380 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1381 | Assert(!CS.doesNotAccessMemory() && !CS.onlyReadsMemory(), |
| 1382 | "gc.statepoint must read and write memory to preserve " |
| 1383 | "reordering restrictions required by safepoint semantics", |
| 1384 | &CI); |
| 1385 | |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1386 | const Value *Target = CS.getArgument(0); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1387 | const PointerType *PT = dyn_cast<PointerType>(Target->getType()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1388 | Assert(PT && PT->getElementType()->isFunctionTy(), |
| 1389 | "gc.statepoint callee must be of function pointer type", &CI, Target); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1390 | FunctionType *TargetFuncType = cast<FunctionType>(PT->getElementType()); |
| 1391 | |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1392 | const Value *NumCallArgsV = CS.getArgument(1); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1393 | Assert(isa<ConstantInt>(NumCallArgsV), |
| 1394 | "gc.statepoint number of arguments to underlying call " |
| 1395 | "must be constant integer", |
| 1396 | &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1397 | const int NumCallArgs = cast<ConstantInt>(NumCallArgsV)->getZExtValue(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1398 | Assert(NumCallArgs >= 0, |
| 1399 | "gc.statepoint number of arguments to underlying call " |
| 1400 | "must be positive", |
| 1401 | &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1402 | const int NumParams = (int)TargetFuncType->getNumParams(); |
| 1403 | if (TargetFuncType->isVarArg()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1404 | Assert(NumCallArgs >= NumParams, |
| 1405 | "gc.statepoint mismatch in number of vararg call args", &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1406 | |
| 1407 | // TODO: Remove this limitation |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1408 | Assert(TargetFuncType->getReturnType()->isVoidTy(), |
| 1409 | "gc.statepoint doesn't support wrapping non-void " |
| 1410 | "vararg functions yet", |
| 1411 | &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1412 | } else |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1413 | Assert(NumCallArgs == NumParams, |
| 1414 | "gc.statepoint mismatch in number of call args", &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1415 | |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1416 | const Value *Unused = CS.getArgument(2); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1417 | Assert(isa<ConstantInt>(Unused) && cast<ConstantInt>(Unused)->isNullValue(), |
| 1418 | "gc.statepoint parameter #3 must be zero", &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1419 | |
| 1420 | // Verify that the types of the call parameter arguments match |
| 1421 | // the type of the wrapped callee. |
| 1422 | for (int i = 0; i < NumParams; i++) { |
| 1423 | Type *ParamType = TargetFuncType->getParamType(i); |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1424 | Type *ArgType = CS.getArgument(3+i)->getType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1425 | Assert(ArgType == ParamType, |
| 1426 | "gc.statepoint call argument does not match wrapped " |
| 1427 | "function type", |
| 1428 | &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1429 | } |
| 1430 | const int EndCallArgsInx = 2+NumCallArgs; |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1431 | const Value *NumDeoptArgsV = CS.getArgument(EndCallArgsInx+1); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1432 | Assert(isa<ConstantInt>(NumDeoptArgsV), |
| 1433 | "gc.statepoint number of deoptimization arguments " |
| 1434 | "must be constant integer", |
| 1435 | &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1436 | const int NumDeoptArgs = cast<ConstantInt>(NumDeoptArgsV)->getZExtValue(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1437 | Assert(NumDeoptArgs >= 0, "gc.statepoint number of deoptimization arguments " |
| 1438 | "must be positive", |
| 1439 | &CI); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1440 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1441 | Assert(4 + NumCallArgs + NumDeoptArgs <= (int)CS.arg_size(), |
| 1442 | "gc.statepoint too few arguments according to length fields", &CI); |
| 1443 | |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1444 | // Check that the only uses of this gc.statepoint are gc.result or |
| 1445 | // gc.relocate calls which are tied to this statepoint and thus part |
| 1446 | // of the same statepoint sequence |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 1447 | for (const User *U : CI.users()) { |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1448 | const CallInst *Call = dyn_cast<const CallInst>(U); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1449 | Assert(Call, "illegal use of statepoint token", &CI, U); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1450 | if (!Call) continue; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1451 | Assert(isGCRelocate(Call) || isGCResult(Call), |
| 1452 | "gc.result or gc.relocate are the only value uses" |
| 1453 | "of a gc.statepoint", |
| 1454 | &CI, U); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1455 | if (isGCResult(Call)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1456 | Assert(Call->getArgOperand(0) == &CI, |
| 1457 | "gc.result connected to wrong gc.statepoint", &CI, Call); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1458 | } else if (isGCRelocate(Call)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1459 | Assert(Call->getArgOperand(0) == &CI, |
| 1460 | "gc.relocate connected to wrong gc.statepoint", &CI, Call); |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 1461 | } |
| 1462 | } |
| 1463 | |
| 1464 | // Note: It is legal for a single derived pointer to be listed multiple |
| 1465 | // times. It's non-optimal, but it is legal. It can also happen after |
| 1466 | // insertion if we strip a bitcast away. |
| 1467 | // Note: It is really tempting to check that each base is relocated and |
| 1468 | // that a derived pointer is never reused as a base pointer. This turns |
| 1469 | // out to be problematic since optimizations run after safepoint insertion |
| 1470 | // can recognize equality properties that the insertion logic doesn't know |
| 1471 | // about. See example statepoint.ll in the verifier subdirectory |
| 1472 | } |
| 1473 | |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 1474 | void Verifier::verifyFrameRecoverIndices() { |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 1475 | for (auto &Counts : FrameEscapeInfo) { |
| 1476 | Function *F = Counts.first; |
| 1477 | unsigned EscapedObjectCount = Counts.second.first; |
| 1478 | unsigned MaxRecoveredIndex = Counts.second.second; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1479 | Assert(MaxRecoveredIndex <= EscapedObjectCount, |
| 1480 | "all indices passed to llvm.framerecover must be less than the " |
| 1481 | "number of arguments passed ot llvm.frameescape in the parent " |
| 1482 | "function", |
| 1483 | F); |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 1484 | } |
| 1485 | } |
| 1486 | |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 1487 | // visitFunction - Verify that a function is ok. |
Chris Lattner | d02f08d | 2002-02-20 17:55:43 +0000 | [diff] [blame] | 1488 | // |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1489 | void Verifier::visitFunction(const Function &F) { |
Chris Lattner | 2ad5aa8 | 2005-05-08 22:27:09 +0000 | [diff] [blame] | 1490 | // Check function arguments. |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1491 | FunctionType *FT = F.getFunctionType(); |
Chris Lattner | 45ffa21 | 2007-08-18 06:13:19 +0000 | [diff] [blame] | 1492 | unsigned NumArgs = F.arg_size(); |
Chris Lattner | af95e58 | 2002-04-13 22:48:46 +0000 | [diff] [blame] | 1493 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1494 | Assert(Context == &F.getContext(), |
| 1495 | "Function context does not match Module context!", &F); |
Nick Lewycky | 62f864d | 2010-02-15 21:52:04 +0000 | [diff] [blame] | 1496 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1497 | Assert(!F.hasCommonLinkage(), "Functions may not have common linkage", &F); |
| 1498 | Assert(FT->getNumParams() == NumArgs, |
| 1499 | "# formal arguments must match # of arguments for function type!", &F, |
| 1500 | FT); |
| 1501 | Assert(F.getReturnType()->isFirstClassType() || |
| 1502 | F.getReturnType()->isVoidTy() || F.getReturnType()->isStructTy(), |
| 1503 | "Functions cannot return aggregate values!", &F); |
Chris Lattner | af95e58 | 2002-04-13 22:48:46 +0000 | [diff] [blame] | 1504 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1505 | Assert(!F.hasStructRetAttr() || F.getReturnType()->isVoidTy(), |
| 1506 | "Invalid struct return type!", &F); |
Devang Patel | 9d917859 | 2008-03-03 21:46:28 +0000 | [diff] [blame] | 1507 | |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 1508 | AttributeSet Attrs = F.getAttributes(); |
Duncan Sands | b99f44a | 2008-01-11 22:36:48 +0000 | [diff] [blame] | 1509 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1510 | Assert(VerifyAttributeCount(Attrs, FT->getNumParams()), |
| 1511 | "Attribute after last parameter!", &F); |
Duncan Sands | b99f44a | 2008-01-11 22:36:48 +0000 | [diff] [blame] | 1512 | |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1513 | // Check function attributes. |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 1514 | VerifyFunctionAttrs(FT, Attrs, &F); |
Duncan Sands | 07c9066 | 2007-07-27 15:09:54 +0000 | [diff] [blame] | 1515 | |
Michael Gottesman | 41748d7 | 2013-06-27 00:25:01 +0000 | [diff] [blame] | 1516 | // On function declarations/definitions, we do not support the builtin |
| 1517 | // attribute. We do not check this in VerifyFunctionAttrs since that is |
| 1518 | // checking for Attributes that can/can not ever be on functions. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1519 | Assert(!Attrs.hasAttribute(AttributeSet::FunctionIndex, Attribute::Builtin), |
| 1520 | "Attribute 'builtin' can only be applied to a callsite.", &F); |
Michael Gottesman | 41748d7 | 2013-06-27 00:25:01 +0000 | [diff] [blame] | 1521 | |
Chris Lattner | ef13ee3 | 2006-05-19 21:25:17 +0000 | [diff] [blame] | 1522 | // Check that this function meets the restrictions on this calling convention. |
Reid Kleckner | 329d4a2 | 2014-08-29 21:25:28 +0000 | [diff] [blame] | 1523 | // Sometimes varargs is used for perfectly forwarding thunks, so some of these |
| 1524 | // restrictions can be lifted. |
Chris Lattner | ef13ee3 | 2006-05-19 21:25:17 +0000 | [diff] [blame] | 1525 | switch (F.getCallingConv()) { |
| 1526 | default: |
Chris Lattner | ef13ee3 | 2006-05-19 21:25:17 +0000 | [diff] [blame] | 1527 | case CallingConv::C: |
| 1528 | break; |
Chris Lattner | ef13ee3 | 2006-05-19 21:25:17 +0000 | [diff] [blame] | 1529 | case CallingConv::Fast: |
| 1530 | case CallingConv::Cold: |
Elena Demikhovsky | d6afb03 | 2012-10-24 14:46:16 +0000 | [diff] [blame] | 1531 | case CallingConv::Intel_OCL_BI: |
Che-Liang Chiou | 2994790 | 2010-09-25 07:46:17 +0000 | [diff] [blame] | 1532 | case CallingConv::PTX_Kernel: |
| 1533 | case CallingConv::PTX_Device: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1534 | Assert(!F.isVarArg(), "Calling convention does not support varargs or " |
| 1535 | "perfect forwarding!", |
| 1536 | &F); |
Chris Lattner | ef13ee3 | 2006-05-19 21:25:17 +0000 | [diff] [blame] | 1537 | break; |
| 1538 | } |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 1539 | |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 1540 | bool isLLVMdotName = F.getName().size() >= 5 && |
| 1541 | F.getName().substr(0, 5) == "llvm."; |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 1542 | |
Chris Lattner | af95e58 | 2002-04-13 22:48:46 +0000 | [diff] [blame] | 1543 | // Check that the argument values match the function type for this function... |
Chris Lattner | 149376d | 2002-10-13 20:57:00 +0000 | [diff] [blame] | 1544 | unsigned i = 0; |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1545 | for (Function::const_arg_iterator I = F.arg_begin(), E = F.arg_end(); I != E; |
| 1546 | ++I, ++i) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1547 | Assert(I->getType() == FT->getParamType(i), |
| 1548 | "Argument value does not match function argument type!", I, |
| 1549 | FT->getParamType(i)); |
| 1550 | Assert(I->getType()->isFirstClassType(), |
| 1551 | "Function arguments must have first-class types!", I); |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 1552 | if (!isLLVMdotName) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1553 | Assert(!I->getType()->isMetadataTy(), |
| 1554 | "Function takes metadata but isn't an intrinsic", I, &F); |
Dan Gohman | 4051bf4 | 2008-08-27 14:44:57 +0000 | [diff] [blame] | 1555 | } |
Chris Lattner | af95e58 | 2002-04-13 22:48:46 +0000 | [diff] [blame] | 1556 | |
Jeffrey Yasskin | 091217b | 2010-01-27 20:34:15 +0000 | [diff] [blame] | 1557 | if (F.isMaterializable()) { |
| 1558 | // Function has a body somewhere we can't see. |
| 1559 | } else if (F.isDeclaration()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1560 | Assert(F.hasExternalLinkage() || F.hasExternalWeakLinkage(), |
| 1561 | "invalid linkage type for function declaration", &F); |
Chris Lattner | d79f3d5 | 2007-09-19 17:14:45 +0000 | [diff] [blame] | 1562 | } else { |
Chris Lattner | cb81331 | 2006-12-13 04:45:46 +0000 | [diff] [blame] | 1563 | // Verify that this function (which has a body) is not named "llvm.*". It |
| 1564 | // is not legal to define intrinsics. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1565 | Assert(!isLLVMdotName, "llvm intrinsics cannot be defined!", &F); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 1566 | |
Chris Lattner | 149376d | 2002-10-13 20:57:00 +0000 | [diff] [blame] | 1567 | // Check the entry node |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 1568 | const BasicBlock *Entry = &F.getEntryBlock(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1569 | Assert(pred_empty(Entry), |
| 1570 | "Entry block to function must not have predecessors!", Entry); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 1571 | |
Chris Lattner | 2747174 | 2009-11-01 04:08:01 +0000 | [diff] [blame] | 1572 | // The address of the entry block cannot be taken, unless it is dead. |
| 1573 | if (Entry->hasAddressTaken()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1574 | Assert(!BlockAddress::lookup(Entry)->isConstantUsed(), |
| 1575 | "blockaddress may not be used with the entry block!", Entry); |
Chris Lattner | 2747174 | 2009-11-01 04:08:01 +0000 | [diff] [blame] | 1576 | } |
Chris Lattner | 149376d | 2002-10-13 20:57:00 +0000 | [diff] [blame] | 1577 | } |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 1578 | |
Chris Lattner | 7730dcc | 2009-09-11 17:05:29 +0000 | [diff] [blame] | 1579 | // If this function is actually an intrinsic, verify that it is only used in |
| 1580 | // direct call/invokes, never having its "address taken". |
| 1581 | if (F.getIntrinsicID()) { |
Gabor Greif | a2fbc0a | 2010-03-24 13:21:49 +0000 | [diff] [blame] | 1582 | const User *U; |
| 1583 | if (F.hasAddressTaken(&U)) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1584 | Assert(0, "Invalid user of intrinsic instruction!", U); |
Chris Lattner | 7730dcc | 2009-09-11 17:05:29 +0000 | [diff] [blame] | 1585 | } |
Nico Rieck | 7157bb7 | 2014-01-14 15:22:47 +0000 | [diff] [blame] | 1586 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1587 | Assert(!F.hasDLLImportStorageClass() || |
| 1588 | (F.isDeclaration() && F.hasExternalLinkage()) || |
| 1589 | F.hasAvailableExternallyLinkage(), |
| 1590 | "Function is marked as dllimport, but not external.", &F); |
Chris Lattner | d02f08d | 2002-02-20 17:55:43 +0000 | [diff] [blame] | 1591 | } |
| 1592 | |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 1593 | // verifyBasicBlock - Verify that a basic block is well formed... |
| 1594 | // |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1595 | void Verifier::visitBasicBlock(BasicBlock &BB) { |
Chris Lattner | c9e79d0 | 2004-09-29 20:07:45 +0000 | [diff] [blame] | 1596 | InstsInThisBlock.clear(); |
| 1597 | |
Alkis Evlogimenos | be526cf | 2004-12-04 02:30:42 +0000 | [diff] [blame] | 1598 | // Ensure that basic blocks have terminators! |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1599 | Assert(BB.getTerminator(), "Basic Block does not have terminator!", &BB); |
Alkis Evlogimenos | be526cf | 2004-12-04 02:30:42 +0000 | [diff] [blame] | 1600 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1601 | // Check constraints that this basic block imposes on all of the PHI nodes in |
| 1602 | // it. |
| 1603 | if (isa<PHINode>(BB.front())) { |
Chris Lattner | 59a8d2c | 2007-02-10 08:33:11 +0000 | [diff] [blame] | 1604 | SmallVector<BasicBlock*, 8> Preds(pred_begin(&BB), pred_end(&BB)); |
| 1605 | SmallVector<std::pair<BasicBlock*, Value*>, 8> Values; |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1606 | std::sort(Preds.begin(), Preds.end()); |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 1607 | PHINode *PN; |
Chris Lattner | 307e1df | 2004-06-05 17:44:48 +0000 | [diff] [blame] | 1608 | for (BasicBlock::iterator I = BB.begin(); (PN = dyn_cast<PHINode>(I));++I) { |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1609 | // Ensure that PHI nodes have at least one entry! |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1610 | Assert(PN->getNumIncomingValues() != 0, |
| 1611 | "PHI nodes must have at least one entry. If the block is dead, " |
| 1612 | "the PHI should be removed!", |
| 1613 | PN); |
| 1614 | Assert(PN->getNumIncomingValues() == Preds.size(), |
| 1615 | "PHINode should have one entry for each predecessor of its " |
| 1616 | "parent basic block!", |
| 1617 | PN); |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 1618 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1619 | // Get and sort all incoming values in the PHI node... |
Chris Lattner | 59a8d2c | 2007-02-10 08:33:11 +0000 | [diff] [blame] | 1620 | Values.clear(); |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1621 | Values.reserve(PN->getNumIncomingValues()); |
| 1622 | for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i) |
| 1623 | Values.push_back(std::make_pair(PN->getIncomingBlock(i), |
| 1624 | PN->getIncomingValue(i))); |
| 1625 | std::sort(Values.begin(), Values.end()); |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 1626 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1627 | for (unsigned i = 0, e = Values.size(); i != e; ++i) { |
| 1628 | // Check to make sure that if there is more than one entry for a |
| 1629 | // particular basic block in this PHI node, that the incoming values are |
| 1630 | // all identical. |
| 1631 | // |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1632 | Assert(i == 0 || Values[i].first != Values[i - 1].first || |
| 1633 | Values[i].second == Values[i - 1].second, |
| 1634 | "PHI node has multiple entries for the same basic block with " |
| 1635 | "different incoming values!", |
| 1636 | PN, Values[i].first, Values[i].second, Values[i - 1].second); |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 1637 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1638 | // Check to make sure that the predecessors and PHI node entries are |
| 1639 | // matched up. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1640 | Assert(Values[i].first == Preds[i], |
| 1641 | "PHI node entries do not match predecessors!", PN, |
| 1642 | Values[i].first, Preds[i]); |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1643 | } |
| 1644 | } |
| 1645 | } |
Adrian Prantl | 940257f | 2014-11-21 00:39:43 +0000 | [diff] [blame] | 1646 | |
| 1647 | // Check that all instructions have their parent pointers set up correctly. |
Zachary Turner | 8325a5c | 2014-11-21 01:19:09 +0000 | [diff] [blame] | 1648 | for (auto &I : BB) |
| 1649 | { |
Adrian Prantl | 940257f | 2014-11-21 00:39:43 +0000 | [diff] [blame] | 1650 | Assert(I.getParent() == &BB, "Instruction has bogus parent pointer!"); |
Zachary Turner | 8325a5c | 2014-11-21 01:19:09 +0000 | [diff] [blame] | 1651 | } |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1652 | } |
Chris Lattner | fbf5be5 | 2002-03-15 20:25:09 +0000 | [diff] [blame] | 1653 | |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1654 | void Verifier::visitTerminatorInst(TerminatorInst &I) { |
| 1655 | // Ensure that terminators only exist at the end of the basic block. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1656 | Assert(&I == I.getParent()->getTerminator(), |
| 1657 | "Terminator found in the middle of a basic block!", I.getParent()); |
Chris Lattner | 7af3ee9 | 2002-07-18 00:13:42 +0000 | [diff] [blame] | 1658 | visitInstruction(I); |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1659 | } |
| 1660 | |
Nick Lewycky | 1d9a815 | 2010-02-15 22:09:09 +0000 | [diff] [blame] | 1661 | void Verifier::visitBranchInst(BranchInst &BI) { |
| 1662 | if (BI.isConditional()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1663 | Assert(BI.getCondition()->getType()->isIntegerTy(1), |
| 1664 | "Branch condition is not 'i1' type!", &BI, BI.getCondition()); |
Nick Lewycky | 1d9a815 | 2010-02-15 22:09:09 +0000 | [diff] [blame] | 1665 | } |
| 1666 | visitTerminatorInst(BI); |
| 1667 | } |
| 1668 | |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1669 | void Verifier::visitReturnInst(ReturnInst &RI) { |
| 1670 | Function *F = RI.getParent()->getParent(); |
Devang Patel | 59643e5 | 2008-02-23 00:35:18 +0000 | [diff] [blame] | 1671 | unsigned N = RI.getNumOperands(); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 1672 | if (F->getReturnType()->isVoidTy()) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1673 | Assert(N == 0, |
| 1674 | "Found return instr that returns non-void in Function of void " |
| 1675 | "return type!", |
| 1676 | &RI, F->getReturnType()); |
Jay Foad | 1152209 | 2011-04-04 07:44:02 +0000 | [diff] [blame] | 1677 | else |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1678 | Assert(N == 1 && F->getReturnType() == RI.getOperand(0)->getType(), |
| 1679 | "Function return type does not match operand " |
| 1680 | "type of return inst!", |
| 1681 | &RI, F->getReturnType()); |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 1682 | |
Misha Brukman | 7eb05a1 | 2003-08-18 14:43:39 +0000 | [diff] [blame] | 1683 | // Check to make sure that the return value has necessary properties for |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1684 | // terminators... |
| 1685 | visitTerminatorInst(RI); |
Chris Lattner | d02f08d | 2002-02-20 17:55:43 +0000 | [diff] [blame] | 1686 | } |
| 1687 | |
Chris Lattner | ab5aa14 | 2004-05-21 16:47:21 +0000 | [diff] [blame] | 1688 | void Verifier::visitSwitchInst(SwitchInst &SI) { |
| 1689 | // Check to make sure that all of the constants in the switch instruction |
| 1690 | // have the same type as the switched-on value. |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1691 | Type *SwitchTy = SI.getCondition()->getType(); |
Bob Wilson | e407736 | 2013-09-09 19:14:35 +0000 | [diff] [blame] | 1692 | SmallPtrSet<ConstantInt*, 32> Constants; |
Stepan Dyatkovskiy | 97b02fc | 2012-03-11 06:09:17 +0000 | [diff] [blame] | 1693 | for (SwitchInst::CaseIt i = SI.case_begin(), e = SI.case_end(); i != e; ++i) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1694 | Assert(i.getCaseValue()->getType() == SwitchTy, |
| 1695 | "Switch constants must all be same type as switch value!", &SI); |
| 1696 | Assert(Constants.insert(i.getCaseValue()).second, |
| 1697 | "Duplicate integer as switch case", &SI, i.getCaseValue()); |
Stepan Dyatkovskiy | e89dafd | 2012-05-21 10:44:40 +0000 | [diff] [blame] | 1698 | } |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 1699 | |
Chris Lattner | ab5aa14 | 2004-05-21 16:47:21 +0000 | [diff] [blame] | 1700 | visitTerminatorInst(SI); |
| 1701 | } |
| 1702 | |
Dan Gohman | d0a1e3d | 2010-08-02 23:08:33 +0000 | [diff] [blame] | 1703 | void Verifier::visitIndirectBrInst(IndirectBrInst &BI) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1704 | Assert(BI.getAddress()->getType()->isPointerTy(), |
| 1705 | "Indirectbr operand must have pointer type!", &BI); |
Dan Gohman | d0a1e3d | 2010-08-02 23:08:33 +0000 | [diff] [blame] | 1706 | for (unsigned i = 0, e = BI.getNumDestinations(); i != e; ++i) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1707 | Assert(BI.getDestination(i)->getType()->isLabelTy(), |
| 1708 | "Indirectbr destinations must all have pointer type!", &BI); |
Dan Gohman | d0a1e3d | 2010-08-02 23:08:33 +0000 | [diff] [blame] | 1709 | |
| 1710 | visitTerminatorInst(BI); |
| 1711 | } |
| 1712 | |
Chris Lattner | 75648e7 | 2004-03-12 05:54:31 +0000 | [diff] [blame] | 1713 | void Verifier::visitSelectInst(SelectInst &SI) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1714 | Assert(!SelectInst::areInvalidOperands(SI.getOperand(0), SI.getOperand(1), |
| 1715 | SI.getOperand(2)), |
| 1716 | "Invalid operands for select instruction!", &SI); |
Chris Lattner | 8810795 | 2008-12-29 00:12:50 +0000 | [diff] [blame] | 1717 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1718 | Assert(SI.getTrueValue()->getType() == SI.getType(), |
| 1719 | "Select values must have same type as select instruction!", &SI); |
Chris Lattner | cde15fb | 2004-09-29 21:19:28 +0000 | [diff] [blame] | 1720 | visitInstruction(SI); |
Chris Lattner | 75648e7 | 2004-03-12 05:54:31 +0000 | [diff] [blame] | 1721 | } |
| 1722 | |
Misha Brukman | c566ca36 | 2004-03-02 00:22:19 +0000 | [diff] [blame] | 1723 | /// visitUserOp1 - User defined operators shouldn't live beyond the lifetime of |
| 1724 | /// a pass, if any exist, it's an error. |
| 1725 | /// |
Chris Lattner | 903a25d | 2002-11-21 16:54:22 +0000 | [diff] [blame] | 1726 | void Verifier::visitUserOp1(Instruction &I) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1727 | Assert(0, "User-defined operators should not live outside of a pass!", &I); |
Chris Lattner | 903a25d | 2002-11-21 16:54:22 +0000 | [diff] [blame] | 1728 | } |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 1729 | |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1730 | void Verifier::visitTruncInst(TruncInst &I) { |
| 1731 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1732 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1733 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1734 | |
| 1735 | // Get the size of the types in bits, we'll need this later |
Dan Gohman | 7ccc52f | 2009-06-15 22:12:54 +0000 | [diff] [blame] | 1736 | unsigned SrcBitSize = SrcTy->getScalarSizeInBits(); |
| 1737 | unsigned DestBitSize = DestTy->getScalarSizeInBits(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1738 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1739 | Assert(SrcTy->isIntOrIntVectorTy(), "Trunc only operates on integer", &I); |
| 1740 | Assert(DestTy->isIntOrIntVectorTy(), "Trunc only produces integer", &I); |
| 1741 | Assert(SrcTy->isVectorTy() == DestTy->isVectorTy(), |
| 1742 | "trunc source and destination must both be a vector or neither", &I); |
| 1743 | Assert(SrcBitSize > DestBitSize, "DestTy too big for Trunc", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1744 | |
| 1745 | visitInstruction(I); |
| 1746 | } |
| 1747 | |
| 1748 | void Verifier::visitZExtInst(ZExtInst &I) { |
| 1749 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1750 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1751 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1752 | |
| 1753 | // Get the size of the types in bits, we'll need this later |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1754 | Assert(SrcTy->isIntOrIntVectorTy(), "ZExt only operates on integer", &I); |
| 1755 | Assert(DestTy->isIntOrIntVectorTy(), "ZExt only produces an integer", &I); |
| 1756 | Assert(SrcTy->isVectorTy() == DestTy->isVectorTy(), |
| 1757 | "zext source and destination must both be a vector or neither", &I); |
Dan Gohman | 7ccc52f | 2009-06-15 22:12:54 +0000 | [diff] [blame] | 1758 | unsigned SrcBitSize = SrcTy->getScalarSizeInBits(); |
| 1759 | unsigned DestBitSize = DestTy->getScalarSizeInBits(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1760 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1761 | Assert(SrcBitSize < DestBitSize, "Type too small for ZExt", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1762 | |
| 1763 | visitInstruction(I); |
| 1764 | } |
| 1765 | |
| 1766 | void Verifier::visitSExtInst(SExtInst &I) { |
| 1767 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1768 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1769 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1770 | |
| 1771 | // Get the size of the types in bits, we'll need this later |
Dan Gohman | 7ccc52f | 2009-06-15 22:12:54 +0000 | [diff] [blame] | 1772 | unsigned SrcBitSize = SrcTy->getScalarSizeInBits(); |
| 1773 | unsigned DestBitSize = DestTy->getScalarSizeInBits(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1774 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1775 | Assert(SrcTy->isIntOrIntVectorTy(), "SExt only operates on integer", &I); |
| 1776 | Assert(DestTy->isIntOrIntVectorTy(), "SExt only produces an integer", &I); |
| 1777 | Assert(SrcTy->isVectorTy() == DestTy->isVectorTy(), |
| 1778 | "sext source and destination must both be a vector or neither", &I); |
| 1779 | Assert(SrcBitSize < DestBitSize, "Type too small for SExt", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1780 | |
| 1781 | visitInstruction(I); |
| 1782 | } |
| 1783 | |
| 1784 | void Verifier::visitFPTruncInst(FPTruncInst &I) { |
| 1785 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1786 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1787 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1788 | // Get the size of the types in bits, we'll need this later |
Dan Gohman | 7ccc52f | 2009-06-15 22:12:54 +0000 | [diff] [blame] | 1789 | unsigned SrcBitSize = SrcTy->getScalarSizeInBits(); |
| 1790 | unsigned DestBitSize = DestTy->getScalarSizeInBits(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1791 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1792 | Assert(SrcTy->isFPOrFPVectorTy(), "FPTrunc only operates on FP", &I); |
| 1793 | Assert(DestTy->isFPOrFPVectorTy(), "FPTrunc only produces an FP", &I); |
| 1794 | Assert(SrcTy->isVectorTy() == DestTy->isVectorTy(), |
| 1795 | "fptrunc source and destination must both be a vector or neither", &I); |
| 1796 | Assert(SrcBitSize > DestBitSize, "DestTy too big for FPTrunc", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1797 | |
| 1798 | visitInstruction(I); |
| 1799 | } |
| 1800 | |
| 1801 | void Verifier::visitFPExtInst(FPExtInst &I) { |
| 1802 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1803 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1804 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1805 | |
| 1806 | // Get the size of the types in bits, we'll need this later |
Dan Gohman | 7ccc52f | 2009-06-15 22:12:54 +0000 | [diff] [blame] | 1807 | unsigned SrcBitSize = SrcTy->getScalarSizeInBits(); |
| 1808 | unsigned DestBitSize = DestTy->getScalarSizeInBits(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1809 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1810 | Assert(SrcTy->isFPOrFPVectorTy(), "FPExt only operates on FP", &I); |
| 1811 | Assert(DestTy->isFPOrFPVectorTy(), "FPExt only produces an FP", &I); |
| 1812 | Assert(SrcTy->isVectorTy() == DestTy->isVectorTy(), |
| 1813 | "fpext source and destination must both be a vector or neither", &I); |
| 1814 | Assert(SrcBitSize < DestBitSize, "DestTy too small for FPExt", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1815 | |
| 1816 | visitInstruction(I); |
| 1817 | } |
| 1818 | |
| 1819 | void Verifier::visitUIToFPInst(UIToFPInst &I) { |
| 1820 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1821 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1822 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1823 | |
Duncan Sands | 19d0b47 | 2010-02-16 11:11:14 +0000 | [diff] [blame] | 1824 | bool SrcVec = SrcTy->isVectorTy(); |
| 1825 | bool DstVec = DestTy->isVectorTy(); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1826 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1827 | Assert(SrcVec == DstVec, |
| 1828 | "UIToFP source and dest must both be vector or scalar", &I); |
| 1829 | Assert(SrcTy->isIntOrIntVectorTy(), |
| 1830 | "UIToFP source must be integer or integer vector", &I); |
| 1831 | Assert(DestTy->isFPOrFPVectorTy(), "UIToFP result must be FP or FP vector", |
| 1832 | &I); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1833 | |
| 1834 | if (SrcVec && DstVec) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1835 | Assert(cast<VectorType>(SrcTy)->getNumElements() == |
| 1836 | cast<VectorType>(DestTy)->getNumElements(), |
| 1837 | "UIToFP source and dest vector length mismatch", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1838 | |
| 1839 | visitInstruction(I); |
| 1840 | } |
| 1841 | |
| 1842 | void Verifier::visitSIToFPInst(SIToFPInst &I) { |
| 1843 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1844 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1845 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1846 | |
Duncan Sands | 19d0b47 | 2010-02-16 11:11:14 +0000 | [diff] [blame] | 1847 | bool SrcVec = SrcTy->isVectorTy(); |
| 1848 | bool DstVec = DestTy->isVectorTy(); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1849 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1850 | Assert(SrcVec == DstVec, |
| 1851 | "SIToFP source and dest must both be vector or scalar", &I); |
| 1852 | Assert(SrcTy->isIntOrIntVectorTy(), |
| 1853 | "SIToFP source must be integer or integer vector", &I); |
| 1854 | Assert(DestTy->isFPOrFPVectorTy(), "SIToFP result must be FP or FP vector", |
| 1855 | &I); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1856 | |
| 1857 | if (SrcVec && DstVec) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1858 | Assert(cast<VectorType>(SrcTy)->getNumElements() == |
| 1859 | cast<VectorType>(DestTy)->getNumElements(), |
| 1860 | "SIToFP source and dest vector length mismatch", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1861 | |
| 1862 | visitInstruction(I); |
| 1863 | } |
| 1864 | |
| 1865 | void Verifier::visitFPToUIInst(FPToUIInst &I) { |
| 1866 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1867 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1868 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1869 | |
Duncan Sands | 19d0b47 | 2010-02-16 11:11:14 +0000 | [diff] [blame] | 1870 | bool SrcVec = SrcTy->isVectorTy(); |
| 1871 | bool DstVec = DestTy->isVectorTy(); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1872 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1873 | Assert(SrcVec == DstVec, |
| 1874 | "FPToUI source and dest must both be vector or scalar", &I); |
| 1875 | Assert(SrcTy->isFPOrFPVectorTy(), "FPToUI source must be FP or FP vector", |
| 1876 | &I); |
| 1877 | Assert(DestTy->isIntOrIntVectorTy(), |
| 1878 | "FPToUI result must be integer or integer vector", &I); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1879 | |
| 1880 | if (SrcVec && DstVec) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1881 | Assert(cast<VectorType>(SrcTy)->getNumElements() == |
| 1882 | cast<VectorType>(DestTy)->getNumElements(), |
| 1883 | "FPToUI source and dest vector length mismatch", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1884 | |
| 1885 | visitInstruction(I); |
| 1886 | } |
| 1887 | |
| 1888 | void Verifier::visitFPToSIInst(FPToSIInst &I) { |
| 1889 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1890 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1891 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1892 | |
Duncan Sands | 19d0b47 | 2010-02-16 11:11:14 +0000 | [diff] [blame] | 1893 | bool SrcVec = SrcTy->isVectorTy(); |
| 1894 | bool DstVec = DestTy->isVectorTy(); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1895 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1896 | Assert(SrcVec == DstVec, |
| 1897 | "FPToSI source and dest must both be vector or scalar", &I); |
| 1898 | Assert(SrcTy->isFPOrFPVectorTy(), "FPToSI source must be FP or FP vector", |
| 1899 | &I); |
| 1900 | Assert(DestTy->isIntOrIntVectorTy(), |
| 1901 | "FPToSI result must be integer or integer vector", &I); |
Nate Begeman | d4d45c2 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 1902 | |
| 1903 | if (SrcVec && DstVec) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1904 | Assert(cast<VectorType>(SrcTy)->getNumElements() == |
| 1905 | cast<VectorType>(DestTy)->getNumElements(), |
| 1906 | "FPToSI source and dest vector length mismatch", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1907 | |
| 1908 | visitInstruction(I); |
| 1909 | } |
| 1910 | |
| 1911 | void Verifier::visitPtrToIntInst(PtrToIntInst &I) { |
| 1912 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1913 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1914 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1915 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1916 | Assert(SrcTy->getScalarType()->isPointerTy(), |
| 1917 | "PtrToInt source must be pointer", &I); |
| 1918 | Assert(DestTy->getScalarType()->isIntegerTy(), |
| 1919 | "PtrToInt result must be integral", &I); |
| 1920 | Assert(SrcTy->isVectorTy() == DestTy->isVectorTy(), "PtrToInt type mismatch", |
| 1921 | &I); |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 1922 | |
| 1923 | if (SrcTy->isVectorTy()) { |
| 1924 | VectorType *VSrc = dyn_cast<VectorType>(SrcTy); |
| 1925 | VectorType *VDest = dyn_cast<VectorType>(DestTy); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1926 | Assert(VSrc->getNumElements() == VDest->getNumElements(), |
| 1927 | "PtrToInt Vector width mismatch", &I); |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 1928 | } |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1929 | |
| 1930 | visitInstruction(I); |
| 1931 | } |
| 1932 | |
| 1933 | void Verifier::visitIntToPtrInst(IntToPtrInst &I) { |
| 1934 | // Get the source and destination types |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 1935 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1936 | Type *DestTy = I.getType(); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1937 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1938 | Assert(SrcTy->getScalarType()->isIntegerTy(), |
| 1939 | "IntToPtr source must be an integral", &I); |
| 1940 | Assert(DestTy->getScalarType()->isPointerTy(), |
| 1941 | "IntToPtr result must be a pointer", &I); |
| 1942 | Assert(SrcTy->isVectorTy() == DestTy->isVectorTy(), "IntToPtr type mismatch", |
| 1943 | &I); |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 1944 | if (SrcTy->isVectorTy()) { |
| 1945 | VectorType *VSrc = dyn_cast<VectorType>(SrcTy); |
| 1946 | VectorType *VDest = dyn_cast<VectorType>(DestTy); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1947 | Assert(VSrc->getNumElements() == VDest->getNumElements(), |
| 1948 | "IntToPtr Vector width mismatch", &I); |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 1949 | } |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1950 | visitInstruction(I); |
| 1951 | } |
| 1952 | |
| 1953 | void Verifier::visitBitCastInst(BitCastInst &I) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1954 | Assert( |
Rafael Espindola | a4a94f1 | 2014-12-16 19:29:29 +0000 | [diff] [blame] | 1955 | CastInst::castIsValid(Instruction::BitCast, I.getOperand(0), I.getType()), |
| 1956 | "Invalid bitcast", &I); |
Reid Spencer | 6c38f0b | 2006-11-27 01:05:10 +0000 | [diff] [blame] | 1957 | visitInstruction(I); |
| 1958 | } |
| 1959 | |
Matt Arsenault | b03bd4d | 2013-11-15 01:34:59 +0000 | [diff] [blame] | 1960 | void Verifier::visitAddrSpaceCastInst(AddrSpaceCastInst &I) { |
| 1961 | Type *SrcTy = I.getOperand(0)->getType(); |
| 1962 | Type *DestTy = I.getType(); |
| 1963 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1964 | Assert(SrcTy->isPtrOrPtrVectorTy(), "AddrSpaceCast source must be a pointer", |
| 1965 | &I); |
| 1966 | Assert(DestTy->isPtrOrPtrVectorTy(), "AddrSpaceCast result must be a pointer", |
| 1967 | &I); |
| 1968 | Assert(SrcTy->getPointerAddressSpace() != DestTy->getPointerAddressSpace(), |
| 1969 | "AddrSpaceCast must be between different address spaces", &I); |
Matt Arsenault | b03bd4d | 2013-11-15 01:34:59 +0000 | [diff] [blame] | 1970 | if (SrcTy->isVectorTy()) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1971 | Assert(SrcTy->getVectorNumElements() == DestTy->getVectorNumElements(), |
| 1972 | "AddrSpaceCast vector pointer number of elements mismatch", &I); |
Matt Arsenault | b03bd4d | 2013-11-15 01:34:59 +0000 | [diff] [blame] | 1973 | visitInstruction(I); |
| 1974 | } |
| 1975 | |
Misha Brukman | c566ca36 | 2004-03-02 00:22:19 +0000 | [diff] [blame] | 1976 | /// visitPHINode - Ensure that a PHI node is well formed. |
| 1977 | /// |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1978 | void Verifier::visitPHINode(PHINode &PN) { |
| 1979 | // Ensure that the PHI nodes are all grouped together at the top of the block. |
| 1980 | // This can be tested by checking whether the instruction before this is |
Misha Brukman | fa10053 | 2003-10-10 17:54:14 +0000 | [diff] [blame] | 1981 | // either nonexistent (because this is begin()) or is a PHI node. If not, |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1982 | // then there is some other instruction before a PHI. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1983 | Assert(&PN == &PN.getParent()->front() || |
| 1984 | isa<PHINode>(--BasicBlock::iterator(&PN)), |
| 1985 | "PHI nodes not grouped at top of basic block!", &PN, PN.getParent()); |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 1986 | |
Nick Lewycky | b2b0467 | 2009-09-08 01:23:52 +0000 | [diff] [blame] | 1987 | // Check that all of the values of the PHI node have the same type as the |
| 1988 | // result, and that the incoming blocks are really basic blocks. |
| 1989 | for (unsigned i = 0, e = PN.getNumIncomingValues(); i != e; ++i) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 1990 | Assert(PN.getType() == PN.getIncomingValue(i)->getType(), |
| 1991 | "PHI node operands are not the same type as the result!", &PN); |
Nick Lewycky | b2b0467 | 2009-09-08 01:23:52 +0000 | [diff] [blame] | 1992 | } |
Chris Lattner | 3b93c91 | 2003-11-12 07:13:37 +0000 | [diff] [blame] | 1993 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 1994 | // All other PHI node constraints are checked in the visitBasicBlock method. |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 1995 | |
| 1996 | visitInstruction(PN); |
| 1997 | } |
| 1998 | |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 1999 | void Verifier::VerifyCallSite(CallSite CS) { |
| 2000 | Instruction *I = CS.getInstruction(); |
| 2001 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2002 | Assert(CS.getCalledValue()->getType()->isPointerTy(), |
| 2003 | "Called function must be a pointer!", I); |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2004 | PointerType *FPTy = cast<PointerType>(CS.getCalledValue()->getType()); |
Chris Lattner | 338a462 | 2002-05-08 19:49:50 +0000 | [diff] [blame] | 2005 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2006 | Assert(FPTy->getElementType()->isFunctionTy(), |
| 2007 | "Called function is not pointer to function type!", I); |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2008 | FunctionType *FTy = cast<FunctionType>(FPTy->getElementType()); |
Chris Lattner | 338a462 | 2002-05-08 19:49:50 +0000 | [diff] [blame] | 2009 | |
| 2010 | // Verify that the correct number of arguments are being passed |
| 2011 | if (FTy->isVarArg()) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2012 | Assert(CS.arg_size() >= FTy->getNumParams(), |
| 2013 | "Called function requires more parameters than were provided!", I); |
Chris Lattner | 338a462 | 2002-05-08 19:49:50 +0000 | [diff] [blame] | 2014 | else |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2015 | Assert(CS.arg_size() == FTy->getNumParams(), |
| 2016 | "Incorrect number of arguments passed to called function!", I); |
Chris Lattner | 338a462 | 2002-05-08 19:49:50 +0000 | [diff] [blame] | 2017 | |
Chris Lattner | 609de00 | 2010-05-10 20:58:42 +0000 | [diff] [blame] | 2018 | // Verify that all arguments to the call match the function type. |
Chris Lattner | 338a462 | 2002-05-08 19:49:50 +0000 | [diff] [blame] | 2019 | for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2020 | Assert(CS.getArgument(i)->getType() == FTy->getParamType(i), |
| 2021 | "Call parameter type does not match function signature!", |
| 2022 | CS.getArgument(i), FTy->getParamType(i), I); |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 2023 | |
Bill Wendling | e3a60a9 | 2013-04-18 20:15:25 +0000 | [diff] [blame] | 2024 | AttributeSet Attrs = CS.getAttributes(); |
Duncan Sands | b99f44a | 2008-01-11 22:36:48 +0000 | [diff] [blame] | 2025 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2026 | Assert(VerifyAttributeCount(Attrs, CS.arg_size()), |
| 2027 | "Attribute after last parameter!", I); |
Duncan Sands | b99f44a | 2008-01-11 22:36:48 +0000 | [diff] [blame] | 2028 | |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 2029 | // Verify call attributes. |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 2030 | VerifyFunctionAttrs(FTy, Attrs, I); |
Duncan Sands | b99f44a | 2008-01-11 22:36:48 +0000 | [diff] [blame] | 2031 | |
David Majnemer | 91db08b | 2014-04-30 17:22:00 +0000 | [diff] [blame] | 2032 | // Conservatively check the inalloca argument. |
| 2033 | // We have a bug if we can find that there is an underlying alloca without |
| 2034 | // inalloca. |
| 2035 | if (CS.hasInAllocaArgument()) { |
| 2036 | Value *InAllocaArg = CS.getArgument(FTy->getNumParams() - 1); |
| 2037 | if (auto AI = dyn_cast<AllocaInst>(InAllocaArg->stripInBoundsOffsets())) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2038 | Assert(AI->isUsedWithInAlloca(), |
| 2039 | "inalloca argument for call has mismatched alloca", AI, I); |
David Majnemer | 91db08b | 2014-04-30 17:22:00 +0000 | [diff] [blame] | 2040 | } |
| 2041 | |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 2042 | if (FTy->isVarArg()) { |
| 2043 | // FIXME? is 'nest' even legal here? |
| 2044 | bool SawNest = false; |
| 2045 | bool SawReturned = false; |
| 2046 | |
| 2047 | for (unsigned Idx = 1; Idx < 1 + FTy->getNumParams(); ++Idx) { |
| 2048 | if (Attrs.hasAttribute(Idx, Attribute::Nest)) |
| 2049 | SawNest = true; |
| 2050 | if (Attrs.hasAttribute(Idx, Attribute::Returned)) |
| 2051 | SawReturned = true; |
| 2052 | } |
| 2053 | |
Duncan Sands | b99f44a | 2008-01-11 22:36:48 +0000 | [diff] [blame] | 2054 | // Check attributes on the varargs part. |
| 2055 | for (unsigned Idx = 1 + FTy->getNumParams(); Idx <= CS.arg_size(); ++Idx) { |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2056 | Type *Ty = CS.getArgument(Idx-1)->getType(); |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 2057 | VerifyParameterAttrs(Attrs, Idx, Ty, false, I); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2058 | |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 2059 | if (Attrs.hasAttribute(Idx, Attribute::Nest)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2060 | Assert(!SawNest, "More than one parameter has attribute nest!", I); |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 2061 | SawNest = true; |
| 2062 | } |
| 2063 | |
| 2064 | if (Attrs.hasAttribute(Idx, Attribute::Returned)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2065 | Assert(!SawReturned, "More than one parameter has attribute returned!", |
| 2066 | I); |
| 2067 | Assert(Ty->canLosslesslyBitCastTo(FTy->getReturnType()), |
| 2068 | "Incompatible argument and return types for 'returned' " |
| 2069 | "attribute", |
| 2070 | I); |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 2071 | SawReturned = true; |
| 2072 | } |
Duncan Sands | 0009c44 | 2008-01-12 16:42:01 +0000 | [diff] [blame] | 2073 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2074 | Assert(!Attrs.hasAttribute(Idx, Attribute::StructRet), |
| 2075 | "Attribute 'sret' cannot be used for vararg call arguments!", I); |
Reid Kleckner | 60d3a83 | 2014-01-16 22:59:24 +0000 | [diff] [blame] | 2076 | |
| 2077 | if (Attrs.hasAttribute(Idx, Attribute::InAlloca)) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2078 | Assert(Idx == CS.arg_size(), "inalloca isn't on the last argument!", I); |
Duncan Sands | b99f44a | 2008-01-11 22:36:48 +0000 | [diff] [blame] | 2079 | } |
Stephen Lin | b8bd232 | 2013-04-20 05:14:40 +0000 | [diff] [blame] | 2080 | } |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 2081 | |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 2082 | // Verify that there's no metadata unless it's a direct call to an intrinsic. |
Craig Topper | c620761 | 2014-04-09 06:08:46 +0000 | [diff] [blame] | 2083 | if (CS.getCalledFunction() == nullptr || |
Chris Lattner | 609de00 | 2010-05-10 20:58:42 +0000 | [diff] [blame] | 2084 | !CS.getCalledFunction()->getName().startswith("llvm.")) { |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 2085 | for (FunctionType::param_iterator PI = FTy->param_begin(), |
| 2086 | PE = FTy->param_end(); PI != PE; ++PI) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2087 | Assert(!(*PI)->isMetadataTy(), |
| 2088 | "Function has metadata parameter but isn't an intrinsic", I); |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 2089 | } |
| 2090 | |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 2091 | visitInstruction(*I); |
| 2092 | } |
| 2093 | |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2094 | /// Two types are "congruent" if they are identical, or if they are both pointer |
| 2095 | /// types with different pointee types and the same address space. |
| 2096 | static bool isTypeCongruent(Type *L, Type *R) { |
| 2097 | if (L == R) |
| 2098 | return true; |
| 2099 | PointerType *PL = dyn_cast<PointerType>(L); |
| 2100 | PointerType *PR = dyn_cast<PointerType>(R); |
| 2101 | if (!PL || !PR) |
| 2102 | return false; |
| 2103 | return PL->getAddressSpace() == PR->getAddressSpace(); |
| 2104 | } |
| 2105 | |
Reid Kleckner | d20c970 | 2014-05-15 23:58:57 +0000 | [diff] [blame] | 2106 | static AttrBuilder getParameterABIAttributes(int I, AttributeSet Attrs) { |
| 2107 | static const Attribute::AttrKind ABIAttrs[] = { |
| 2108 | Attribute::StructRet, Attribute::ByVal, Attribute::InAlloca, |
| 2109 | Attribute::InReg, Attribute::Returned}; |
| 2110 | AttrBuilder Copy; |
| 2111 | for (auto AK : ABIAttrs) { |
| 2112 | if (Attrs.hasAttribute(I + 1, AK)) |
| 2113 | Copy.addAttribute(AK); |
| 2114 | } |
| 2115 | if (Attrs.hasAttribute(I + 1, Attribute::Alignment)) |
| 2116 | Copy.addAlignmentAttr(Attrs.getParamAlignment(I + 1)); |
| 2117 | return Copy; |
| 2118 | } |
| 2119 | |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2120 | void Verifier::verifyMustTailCall(CallInst &CI) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2121 | Assert(!CI.isInlineAsm(), "cannot use musttail call with inline asm", &CI); |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2122 | |
| 2123 | // - The caller and callee prototypes must match. Pointer types of |
| 2124 | // parameters or return types may differ in pointee type, but not |
| 2125 | // address space. |
| 2126 | Function *F = CI.getParent()->getParent(); |
| 2127 | auto GetFnTy = [](Value *V) { |
| 2128 | return cast<FunctionType>( |
| 2129 | cast<PointerType>(V->getType())->getElementType()); |
| 2130 | }; |
| 2131 | FunctionType *CallerTy = GetFnTy(F); |
| 2132 | FunctionType *CalleeTy = GetFnTy(CI.getCalledValue()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2133 | Assert(CallerTy->getNumParams() == CalleeTy->getNumParams(), |
| 2134 | "cannot guarantee tail call due to mismatched parameter counts", &CI); |
| 2135 | Assert(CallerTy->isVarArg() == CalleeTy->isVarArg(), |
| 2136 | "cannot guarantee tail call due to mismatched varargs", &CI); |
| 2137 | Assert(isTypeCongruent(CallerTy->getReturnType(), CalleeTy->getReturnType()), |
| 2138 | "cannot guarantee tail call due to mismatched return types", &CI); |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2139 | for (int I = 0, E = CallerTy->getNumParams(); I != E; ++I) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2140 | Assert( |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2141 | isTypeCongruent(CallerTy->getParamType(I), CalleeTy->getParamType(I)), |
| 2142 | "cannot guarantee tail call due to mismatched parameter types", &CI); |
| 2143 | } |
| 2144 | |
| 2145 | // - The calling conventions of the caller and callee must match. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2146 | Assert(F->getCallingConv() == CI.getCallingConv(), |
| 2147 | "cannot guarantee tail call due to mismatched calling conv", &CI); |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2148 | |
| 2149 | // - All ABI-impacting function attributes, such as sret, byval, inreg, |
| 2150 | // returned, and inalloca, must match. |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2151 | AttributeSet CallerAttrs = F->getAttributes(); |
| 2152 | AttributeSet CalleeAttrs = CI.getAttributes(); |
| 2153 | for (int I = 0, E = CallerTy->getNumParams(); I != E; ++I) { |
Reid Kleckner | d20c970 | 2014-05-15 23:58:57 +0000 | [diff] [blame] | 2154 | AttrBuilder CallerABIAttrs = getParameterABIAttributes(I, CallerAttrs); |
| 2155 | AttrBuilder CalleeABIAttrs = getParameterABIAttributes(I, CalleeAttrs); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2156 | Assert(CallerABIAttrs == CalleeABIAttrs, |
| 2157 | "cannot guarantee tail call due to mismatched ABI impacting " |
| 2158 | "function attributes", |
| 2159 | &CI, CI.getOperand(I)); |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2160 | } |
| 2161 | |
| 2162 | // - The call must immediately precede a :ref:`ret <i_ret>` instruction, |
| 2163 | // or a pointer bitcast followed by a ret instruction. |
| 2164 | // - The ret instruction must return the (possibly bitcasted) value |
| 2165 | // produced by the call or void. |
| 2166 | Value *RetVal = &CI; |
| 2167 | Instruction *Next = CI.getNextNode(); |
| 2168 | |
| 2169 | // Handle the optional bitcast. |
| 2170 | if (BitCastInst *BI = dyn_cast_or_null<BitCastInst>(Next)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2171 | Assert(BI->getOperand(0) == RetVal, |
| 2172 | "bitcast following musttail call must use the call", BI); |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2173 | RetVal = BI; |
| 2174 | Next = BI->getNextNode(); |
| 2175 | } |
| 2176 | |
| 2177 | // Check the return. |
| 2178 | ReturnInst *Ret = dyn_cast_or_null<ReturnInst>(Next); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2179 | Assert(Ret, "musttail call must be precede a ret with an optional bitcast", |
| 2180 | &CI); |
| 2181 | Assert(!Ret->getReturnValue() || Ret->getReturnValue() == RetVal, |
| 2182 | "musttail call result must be returned", Ret); |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2183 | } |
| 2184 | |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 2185 | void Verifier::visitCallInst(CallInst &CI) { |
| 2186 | VerifyCallSite(&CI); |
Chris Lattner | 7af3ee9 | 2002-07-18 00:13:42 +0000 | [diff] [blame] | 2187 | |
Reid Kleckner | 5772b77 | 2014-04-24 20:14:34 +0000 | [diff] [blame] | 2188 | if (CI.isMustTailCall()) |
| 2189 | verifyMustTailCall(CI); |
| 2190 | |
Dale Johannesen | b842d52 | 2009-02-05 01:49:45 +0000 | [diff] [blame] | 2191 | if (Function *F = CI.getCalledFunction()) |
Brian Gaeke | 960707c | 2003-11-11 22:41:34 +0000 | [diff] [blame] | 2192 | if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID()) |
Chris Lattner | bb346d0 | 2003-05-08 03:47:33 +0000 | [diff] [blame] | 2193 | visitIntrinsicFunctionCall(ID, CI); |
Duncan Sands | 8c58228 | 2007-12-21 19:19:01 +0000 | [diff] [blame] | 2194 | } |
| 2195 | |
| 2196 | void Verifier::visitInvokeInst(InvokeInst &II) { |
| 2197 | VerifyCallSite(&II); |
Bill Wendling | f4bbc04 | 2011-09-21 22:57:02 +0000 | [diff] [blame] | 2198 | |
| 2199 | // Verify that there is a landingpad instruction as the first non-PHI |
| 2200 | // instruction of the 'unwind' destination. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2201 | Assert(II.getUnwindDest()->isLandingPad(), |
| 2202 | "The unwind destination does not have a landingpad instruction!", &II); |
Bill Wendling | f4bbc04 | 2011-09-21 22:57:02 +0000 | [diff] [blame] | 2203 | |
Igor Laevsky | 9570ff9 | 2015-02-19 11:28:47 +0000 | [diff] [blame] | 2204 | if (Function *F = II.getCalledFunction()) |
| 2205 | // TODO: Ideally we should use visitIntrinsicFunction here. But it uses |
| 2206 | // CallInst as an input parameter. It not woth updating this whole |
| 2207 | // function only to support statepoint verification. |
| 2208 | if (F->getIntrinsicID() == Intrinsic::experimental_gc_statepoint) |
| 2209 | VerifyStatepoint(ImmutableCallSite(&II)); |
| 2210 | |
Dan Gohman | 9c6e188 | 2010-08-02 23:09:14 +0000 | [diff] [blame] | 2211 | visitTerminatorInst(II); |
Chris Lattner | 21ea83b | 2002-04-18 22:11:52 +0000 | [diff] [blame] | 2212 | } |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 2213 | |
Misha Brukman | c566ca36 | 2004-03-02 00:22:19 +0000 | [diff] [blame] | 2214 | /// visitBinaryOperator - Check that both arguments to the binary operator are |
| 2215 | /// of the same type! |
| 2216 | /// |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 2217 | void Verifier::visitBinaryOperator(BinaryOperator &B) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2218 | Assert(B.getOperand(0)->getType() == B.getOperand(1)->getType(), |
| 2219 | "Both operands to a binary operator are not of the same type!", &B); |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 2220 | |
Reid Spencer | 2341c22 | 2007-02-02 02:16:23 +0000 | [diff] [blame] | 2221 | switch (B.getOpcode()) { |
Dan Gohman | 5208dd8 | 2009-06-05 16:10:00 +0000 | [diff] [blame] | 2222 | // Check that integer arithmetic operators are only used with |
| 2223 | // integral operands. |
| 2224 | case Instruction::Add: |
| 2225 | case Instruction::Sub: |
| 2226 | case Instruction::Mul: |
| 2227 | case Instruction::SDiv: |
| 2228 | case Instruction::UDiv: |
| 2229 | case Instruction::SRem: |
| 2230 | case Instruction::URem: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2231 | Assert(B.getType()->isIntOrIntVectorTy(), |
| 2232 | "Integer arithmetic operators only work with integral types!", &B); |
| 2233 | Assert(B.getType() == B.getOperand(0)->getType(), |
| 2234 | "Integer arithmetic operators must have same type " |
| 2235 | "for operands and result!", |
| 2236 | &B); |
Dan Gohman | 5208dd8 | 2009-06-05 16:10:00 +0000 | [diff] [blame] | 2237 | break; |
| 2238 | // Check that floating-point arithmetic operators are only used with |
| 2239 | // floating-point operands. |
| 2240 | case Instruction::FAdd: |
| 2241 | case Instruction::FSub: |
| 2242 | case Instruction::FMul: |
| 2243 | case Instruction::FDiv: |
| 2244 | case Instruction::FRem: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2245 | Assert(B.getType()->isFPOrFPVectorTy(), |
| 2246 | "Floating-point arithmetic operators only work with " |
| 2247 | "floating-point types!", |
| 2248 | &B); |
| 2249 | Assert(B.getType() == B.getOperand(0)->getType(), |
| 2250 | "Floating-point arithmetic operators must have same type " |
| 2251 | "for operands and result!", |
| 2252 | &B); |
Dan Gohman | 5208dd8 | 2009-06-05 16:10:00 +0000 | [diff] [blame] | 2253 | break; |
Chris Lattner | 1f41925 | 2002-09-09 20:26:04 +0000 | [diff] [blame] | 2254 | // Check that logical operators are only used with integral operands. |
Reid Spencer | 2341c22 | 2007-02-02 02:16:23 +0000 | [diff] [blame] | 2255 | case Instruction::And: |
| 2256 | case Instruction::Or: |
| 2257 | case Instruction::Xor: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2258 | Assert(B.getType()->isIntOrIntVectorTy(), |
| 2259 | "Logical operators only work with integral types!", &B); |
| 2260 | Assert(B.getType() == B.getOperand(0)->getType(), |
| 2261 | "Logical operators must have same type for operands and result!", |
| 2262 | &B); |
Reid Spencer | 2341c22 | 2007-02-02 02:16:23 +0000 | [diff] [blame] | 2263 | break; |
| 2264 | case Instruction::Shl: |
| 2265 | case Instruction::LShr: |
| 2266 | case Instruction::AShr: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2267 | Assert(B.getType()->isIntOrIntVectorTy(), |
| 2268 | "Shifts only work with integral types!", &B); |
| 2269 | Assert(B.getType() == B.getOperand(0)->getType(), |
| 2270 | "Shift return type must be same as operands!", &B); |
Reid Spencer | 2341c22 | 2007-02-02 02:16:23 +0000 | [diff] [blame] | 2271 | break; |
Dan Gohman | 5208dd8 | 2009-06-05 16:10:00 +0000 | [diff] [blame] | 2272 | default: |
Torok Edwin | fbcc663 | 2009-07-14 16:55:14 +0000 | [diff] [blame] | 2273 | llvm_unreachable("Unknown BinaryOperator opcode!"); |
Chris Lattner | 1f41925 | 2002-09-09 20:26:04 +0000 | [diff] [blame] | 2274 | } |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 2275 | |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 2276 | visitInstruction(B); |
| 2277 | } |
| 2278 | |
Nick Lewycky | c72d285 | 2010-08-22 23:45:14 +0000 | [diff] [blame] | 2279 | void Verifier::visitICmpInst(ICmpInst &IC) { |
Reid Spencer | d9436b6 | 2006-11-20 01:22:35 +0000 | [diff] [blame] | 2280 | // Check that the operands are the same type |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2281 | Type *Op0Ty = IC.getOperand(0)->getType(); |
| 2282 | Type *Op1Ty = IC.getOperand(1)->getType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2283 | Assert(Op0Ty == Op1Ty, |
| 2284 | "Both operands to ICmp instruction are not of the same type!", &IC); |
Reid Spencer | d9436b6 | 2006-11-20 01:22:35 +0000 | [diff] [blame] | 2285 | // Check that the operands are the right type |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2286 | Assert(Op0Ty->isIntOrIntVectorTy() || Op0Ty->getScalarType()->isPointerTy(), |
| 2287 | "Invalid operand types for ICmp instruction", &IC); |
Nick Lewycky | c72d285 | 2010-08-22 23:45:14 +0000 | [diff] [blame] | 2288 | // Check that the predicate is valid. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2289 | Assert(IC.getPredicate() >= CmpInst::FIRST_ICMP_PREDICATE && |
| 2290 | IC.getPredicate() <= CmpInst::LAST_ICMP_PREDICATE, |
| 2291 | "Invalid predicate in ICmp instruction!", &IC); |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 2292 | |
Reid Spencer | d9436b6 | 2006-11-20 01:22:35 +0000 | [diff] [blame] | 2293 | visitInstruction(IC); |
| 2294 | } |
| 2295 | |
Nick Lewycky | c72d285 | 2010-08-22 23:45:14 +0000 | [diff] [blame] | 2296 | void Verifier::visitFCmpInst(FCmpInst &FC) { |
Reid Spencer | d9436b6 | 2006-11-20 01:22:35 +0000 | [diff] [blame] | 2297 | // Check that the operands are the same type |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2298 | Type *Op0Ty = FC.getOperand(0)->getType(); |
| 2299 | Type *Op1Ty = FC.getOperand(1)->getType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2300 | Assert(Op0Ty == Op1Ty, |
| 2301 | "Both operands to FCmp instruction are not of the same type!", &FC); |
Reid Spencer | d9436b6 | 2006-11-20 01:22:35 +0000 | [diff] [blame] | 2302 | // Check that the operands are the right type |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2303 | Assert(Op0Ty->isFPOrFPVectorTy(), |
| 2304 | "Invalid operand types for FCmp instruction", &FC); |
Nick Lewycky | c72d285 | 2010-08-22 23:45:14 +0000 | [diff] [blame] | 2305 | // Check that the predicate is valid. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2306 | Assert(FC.getPredicate() >= CmpInst::FIRST_FCMP_PREDICATE && |
| 2307 | FC.getPredicate() <= CmpInst::LAST_FCMP_PREDICATE, |
| 2308 | "Invalid predicate in FCmp instruction!", &FC); |
Nick Lewycky | c72d285 | 2010-08-22 23:45:14 +0000 | [diff] [blame] | 2309 | |
Reid Spencer | d9436b6 | 2006-11-20 01:22:35 +0000 | [diff] [blame] | 2310 | visitInstruction(FC); |
| 2311 | } |
| 2312 | |
Robert Bocchino | 2300448 | 2006-01-10 19:05:34 +0000 | [diff] [blame] | 2313 | void Verifier::visitExtractElementInst(ExtractElementInst &EI) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2314 | Assert( |
| 2315 | ExtractElementInst::isValidOperands(EI.getOperand(0), EI.getOperand(1)), |
| 2316 | "Invalid extractelement operands!", &EI); |
Robert Bocchino | 2300448 | 2006-01-10 19:05:34 +0000 | [diff] [blame] | 2317 | visitInstruction(EI); |
| 2318 | } |
| 2319 | |
Robert Bocchino | ca27f03 | 2006-01-17 20:07:22 +0000 | [diff] [blame] | 2320 | void Verifier::visitInsertElementInst(InsertElementInst &IE) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2321 | Assert(InsertElementInst::isValidOperands(IE.getOperand(0), IE.getOperand(1), |
| 2322 | IE.getOperand(2)), |
| 2323 | "Invalid insertelement operands!", &IE); |
Robert Bocchino | ca27f03 | 2006-01-17 20:07:22 +0000 | [diff] [blame] | 2324 | visitInstruction(IE); |
| 2325 | } |
| 2326 | |
Chris Lattner | bbe0a42 | 2006-04-08 01:18:18 +0000 | [diff] [blame] | 2327 | void Verifier::visitShuffleVectorInst(ShuffleVectorInst &SV) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2328 | Assert(ShuffleVectorInst::isValidOperands(SV.getOperand(0), SV.getOperand(1), |
| 2329 | SV.getOperand(2)), |
| 2330 | "Invalid shufflevector operands!", &SV); |
Chris Lattner | bbe0a42 | 2006-04-08 01:18:18 +0000 | [diff] [blame] | 2331 | visitInstruction(SV); |
| 2332 | } |
| 2333 | |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 2334 | void Verifier::visitGetElementPtrInst(GetElementPtrInst &GEP) { |
Duncan Sands | a71ae96 | 2012-02-03 17:28:51 +0000 | [diff] [blame] | 2335 | Type *TargetTy = GEP.getPointerOperandType()->getScalarType(); |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 2336 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2337 | Assert(isa<PointerType>(TargetTy), |
| 2338 | "GEP base pointer is not a vector or a vector of pointers", &GEP); |
| 2339 | Assert(cast<PointerType>(TargetTy)->getElementType()->isSized(), |
| 2340 | "GEP into unsized type!", &GEP); |
| 2341 | Assert(GEP.getPointerOperandType()->isVectorTy() == |
| 2342 | GEP.getType()->isVectorTy(), |
| 2343 | "Vector GEP must return a vector value", &GEP); |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 2344 | |
Chris Lattner | 84d82c7 | 2007-02-10 08:30:29 +0000 | [diff] [blame] | 2345 | SmallVector<Value*, 16> Idxs(GEP.idx_begin(), GEP.idx_end()); |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2346 | Type *ElTy = |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 2347 | GetElementPtrInst::getIndexedType(GEP.getPointerOperandType(), Idxs); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2348 | Assert(ElTy, "Invalid indices for GEP pointer type!", &GEP); |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 2349 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2350 | Assert(GEP.getType()->getScalarType()->isPointerTy() && |
| 2351 | cast<PointerType>(GEP.getType()->getScalarType()) |
| 2352 | ->getElementType() == ElTy, |
| 2353 | "GEP is not of right type for indices!", &GEP, ElTy); |
Duncan Sands | e6beec6 | 2012-11-13 12:59:33 +0000 | [diff] [blame] | 2354 | |
| 2355 | if (GEP.getPointerOperandType()->isVectorTy()) { |
| 2356 | // Additional checks for vector GEPs. |
| 2357 | unsigned GepWidth = GEP.getPointerOperandType()->getVectorNumElements(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2358 | Assert(GepWidth == GEP.getType()->getVectorNumElements(), |
| 2359 | "Vector GEP result width doesn't match operand's", &GEP); |
Duncan Sands | e6beec6 | 2012-11-13 12:59:33 +0000 | [diff] [blame] | 2360 | for (unsigned i = 0, e = Idxs.size(); i != e; ++i) { |
| 2361 | Type *IndexTy = Idxs[i]->getType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2362 | Assert(IndexTy->isVectorTy(), "Vector GEP must have vector indices!", |
| 2363 | &GEP); |
Duncan Sands | e6beec6 | 2012-11-13 12:59:33 +0000 | [diff] [blame] | 2364 | unsigned IndexWidth = IndexTy->getVectorNumElements(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2365 | Assert(IndexWidth == GepWidth, "Invalid GEP index vector width", &GEP); |
Duncan Sands | e6beec6 | 2012-11-13 12:59:33 +0000 | [diff] [blame] | 2366 | } |
Nadav Rotem | 3924cb0 | 2011-12-05 06:29:09 +0000 | [diff] [blame] | 2367 | } |
Chris Lattner | d46bb6e | 2002-04-24 19:12:21 +0000 | [diff] [blame] | 2368 | visitInstruction(GEP); |
| 2369 | } |
| 2370 | |
Rafael Espindola | e3c5f3e | 2012-05-31 16:04:26 +0000 | [diff] [blame] | 2371 | static bool isContiguous(const ConstantRange &A, const ConstantRange &B) { |
| 2372 | return A.getUpper() == B.getLower() || A.getLower() == B.getUpper(); |
| 2373 | } |
| 2374 | |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2375 | void Verifier::visitRangeMetadata(Instruction& I, |
| 2376 | MDNode* Range, Type* Ty) { |
| 2377 | assert(Range && |
| 2378 | Range == I.getMetadata(LLVMContext::MD_range) && |
| 2379 | "precondition violation"); |
| 2380 | |
| 2381 | unsigned NumOperands = Range->getNumOperands(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2382 | Assert(NumOperands % 2 == 0, "Unfinished range!", Range); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2383 | unsigned NumRanges = NumOperands / 2; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2384 | Assert(NumRanges >= 1, "It should have at least one range!", Range); |
| 2385 | |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2386 | ConstantRange LastRange(1); // Dummy initial value |
| 2387 | for (unsigned i = 0; i < NumRanges; ++i) { |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 2388 | ConstantInt *Low = |
| 2389 | mdconst::dyn_extract<ConstantInt>(Range->getOperand(2 * i)); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2390 | Assert(Low, "The lower limit must be an integer!", Low); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 2391 | ConstantInt *High = |
| 2392 | mdconst::dyn_extract<ConstantInt>(Range->getOperand(2 * i + 1)); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2393 | Assert(High, "The upper limit must be an integer!", High); |
| 2394 | Assert(High->getType() == Low->getType() && High->getType() == Ty, |
| 2395 | "Range types must match instruction type!", &I); |
| 2396 | |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2397 | APInt HighV = High->getValue(); |
| 2398 | APInt LowV = Low->getValue(); |
| 2399 | ConstantRange CurRange(LowV, HighV); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2400 | Assert(!CurRange.isEmptySet() && !CurRange.isFullSet(), |
| 2401 | "Range must not be empty!", Range); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2402 | if (i != 0) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2403 | Assert(CurRange.intersectWith(LastRange).isEmptySet(), |
| 2404 | "Intervals are overlapping", Range); |
| 2405 | Assert(LowV.sgt(LastRange.getLower()), "Intervals are not in order", |
| 2406 | Range); |
| 2407 | Assert(!isContiguous(CurRange, LastRange), "Intervals are contiguous", |
| 2408 | Range); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2409 | } |
| 2410 | LastRange = ConstantRange(LowV, HighV); |
| 2411 | } |
| 2412 | if (NumRanges > 2) { |
| 2413 | APInt FirstLow = |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 2414 | mdconst::dyn_extract<ConstantInt>(Range->getOperand(0))->getValue(); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2415 | APInt FirstHigh = |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 2416 | mdconst::dyn_extract<ConstantInt>(Range->getOperand(1))->getValue(); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2417 | ConstantRange FirstRange(FirstLow, FirstHigh); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2418 | Assert(FirstRange.intersectWith(LastRange).isEmptySet(), |
| 2419 | "Intervals are overlapping", Range); |
| 2420 | Assert(!isContiguous(FirstRange, LastRange), "Intervals are contiguous", |
| 2421 | Range); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2422 | } |
| 2423 | } |
| 2424 | |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 2425 | void Verifier::visitLoadInst(LoadInst &LI) { |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2426 | PointerType *PTy = dyn_cast<PointerType>(LI.getOperand(0)->getType()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2427 | Assert(PTy, "Load operand must be a pointer.", &LI); |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2428 | Type *ElTy = PTy->getElementType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2429 | Assert(ElTy == LI.getType(), |
| 2430 | "Load result type does not match pointer operand type!", &LI, ElTy); |
| 2431 | Assert(LI.getAlignment() <= Value::MaximumAlignment, |
| 2432 | "huge alignment values are unsupported", &LI); |
Eli Friedman | 59b6688 | 2011-08-09 23:02:53 +0000 | [diff] [blame] | 2433 | if (LI.isAtomic()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2434 | Assert(LI.getOrdering() != Release && LI.getOrdering() != AcquireRelease, |
| 2435 | "Load cannot have Release ordering", &LI); |
| 2436 | Assert(LI.getAlignment() != 0, |
| 2437 | "Atomic load must specify explicit alignment", &LI); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2438 | if (!ElTy->isPointerTy()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2439 | Assert(ElTy->isIntegerTy(), "atomic load operand must have integer type!", |
| 2440 | &LI, ElTy); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2441 | unsigned Size = ElTy->getPrimitiveSizeInBits(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2442 | Assert(Size >= 8 && !(Size & (Size - 1)), |
| 2443 | "atomic load operand must be power-of-two byte-sized integer", &LI, |
| 2444 | ElTy); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2445 | } |
Eli Friedman | 59b6688 | 2011-08-09 23:02:53 +0000 | [diff] [blame] | 2446 | } else { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2447 | Assert(LI.getSynchScope() == CrossThread, |
| 2448 | "Non-atomic load cannot have SynchronizationScope specified", &LI); |
Eli Friedman | 59b6688 | 2011-08-09 23:02:53 +0000 | [diff] [blame] | 2449 | } |
Rafael Espindola | ef9f550 | 2012-03-24 00:14:51 +0000 | [diff] [blame] | 2450 | |
Chris Lattner | d46bb6e | 2002-04-24 19:12:21 +0000 | [diff] [blame] | 2451 | visitInstruction(LI); |
| 2452 | } |
| 2453 | |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 2454 | void Verifier::visitStoreInst(StoreInst &SI) { |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2455 | PointerType *PTy = dyn_cast<PointerType>(SI.getOperand(1)->getType()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2456 | Assert(PTy, "Store operand must be a pointer.", &SI); |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2457 | Type *ElTy = PTy->getElementType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2458 | Assert(ElTy == SI.getOperand(0)->getType(), |
| 2459 | "Stored value type does not match pointer operand type!", &SI, ElTy); |
| 2460 | Assert(SI.getAlignment() <= Value::MaximumAlignment, |
| 2461 | "huge alignment values are unsupported", &SI); |
Eli Friedman | 59b6688 | 2011-08-09 23:02:53 +0000 | [diff] [blame] | 2462 | if (SI.isAtomic()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2463 | Assert(SI.getOrdering() != Acquire && SI.getOrdering() != AcquireRelease, |
| 2464 | "Store cannot have Acquire ordering", &SI); |
| 2465 | Assert(SI.getAlignment() != 0, |
| 2466 | "Atomic store must specify explicit alignment", &SI); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2467 | if (!ElTy->isPointerTy()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2468 | Assert(ElTy->isIntegerTy(), |
| 2469 | "atomic store operand must have integer type!", &SI, ElTy); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2470 | unsigned Size = ElTy->getPrimitiveSizeInBits(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2471 | Assert(Size >= 8 && !(Size & (Size - 1)), |
| 2472 | "atomic store operand must be power-of-two byte-sized integer", |
| 2473 | &SI, ElTy); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2474 | } |
Eli Friedman | 59b6688 | 2011-08-09 23:02:53 +0000 | [diff] [blame] | 2475 | } else { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2476 | Assert(SI.getSynchScope() == CrossThread, |
| 2477 | "Non-atomic store cannot have SynchronizationScope specified", &SI); |
Eli Friedman | 59b6688 | 2011-08-09 23:02:53 +0000 | [diff] [blame] | 2478 | } |
Chris Lattner | d46bb6e | 2002-04-24 19:12:21 +0000 | [diff] [blame] | 2479 | visitInstruction(SI); |
| 2480 | } |
| 2481 | |
Victor Hernandez | 8acf295 | 2009-10-23 21:09:37 +0000 | [diff] [blame] | 2482 | void Verifier::visitAllocaInst(AllocaInst &AI) { |
Kaelyn Uhrain | 4e86560 | 2013-12-07 00:13:34 +0000 | [diff] [blame] | 2483 | SmallPtrSet<const Type*, 4> Visited; |
Chris Lattner | 229907c | 2011-07-18 04:54:35 +0000 | [diff] [blame] | 2484 | PointerType *PTy = AI.getType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2485 | Assert(PTy->getAddressSpace() == 0, |
| 2486 | "Allocation instruction pointer not in the generic address space!", |
| 2487 | &AI); |
| 2488 | Assert(PTy->getElementType()->isSized(&Visited), |
| 2489 | "Cannot allocate unsized type", &AI); |
| 2490 | Assert(AI.getArraySize()->getType()->isIntegerTy(), |
| 2491 | "Alloca array size must have integer type", &AI); |
| 2492 | Assert(AI.getAlignment() <= Value::MaximumAlignment, |
| 2493 | "huge alignment values are unsupported", &AI); |
Reid Kleckner | a534a38 | 2013-12-19 02:14:12 +0000 | [diff] [blame] | 2494 | |
Christopher Lamb | 55c6d4f | 2007-12-17 01:00:21 +0000 | [diff] [blame] | 2495 | visitInstruction(AI); |
| 2496 | } |
| 2497 | |
Eli Friedman | c9a551e | 2011-07-28 21:48:00 +0000 | [diff] [blame] | 2498 | void Verifier::visitAtomicCmpXchgInst(AtomicCmpXchgInst &CXI) { |
Tim Northover | e94a518 | 2014-03-11 10:48:52 +0000 | [diff] [blame] | 2499 | |
| 2500 | // FIXME: more conditions??? |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2501 | Assert(CXI.getSuccessOrdering() != NotAtomic, |
| 2502 | "cmpxchg instructions must be atomic.", &CXI); |
| 2503 | Assert(CXI.getFailureOrdering() != NotAtomic, |
| 2504 | "cmpxchg instructions must be atomic.", &CXI); |
| 2505 | Assert(CXI.getSuccessOrdering() != Unordered, |
| 2506 | "cmpxchg instructions cannot be unordered.", &CXI); |
| 2507 | Assert(CXI.getFailureOrdering() != Unordered, |
| 2508 | "cmpxchg instructions cannot be unordered.", &CXI); |
| 2509 | Assert(CXI.getSuccessOrdering() >= CXI.getFailureOrdering(), |
| 2510 | "cmpxchg instructions be at least as constrained on success as fail", |
| 2511 | &CXI); |
| 2512 | Assert(CXI.getFailureOrdering() != Release && |
| 2513 | CXI.getFailureOrdering() != AcquireRelease, |
| 2514 | "cmpxchg failure ordering cannot include release semantics", &CXI); |
Tim Northover | e94a518 | 2014-03-11 10:48:52 +0000 | [diff] [blame] | 2515 | |
Eli Friedman | c9a551e | 2011-07-28 21:48:00 +0000 | [diff] [blame] | 2516 | PointerType *PTy = dyn_cast<PointerType>(CXI.getOperand(0)->getType()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2517 | Assert(PTy, "First cmpxchg operand must be a pointer.", &CXI); |
Eli Friedman | c9a551e | 2011-07-28 21:48:00 +0000 | [diff] [blame] | 2518 | Type *ElTy = PTy->getElementType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2519 | Assert(ElTy->isIntegerTy(), "cmpxchg operand must have integer type!", &CXI, |
| 2520 | ElTy); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2521 | unsigned Size = ElTy->getPrimitiveSizeInBits(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2522 | Assert(Size >= 8 && !(Size & (Size - 1)), |
| 2523 | "cmpxchg operand must be power-of-two byte-sized integer", &CXI, ElTy); |
| 2524 | Assert(ElTy == CXI.getOperand(1)->getType(), |
| 2525 | "Expected value type does not match pointer operand type!", &CXI, |
| 2526 | ElTy); |
| 2527 | Assert(ElTy == CXI.getOperand(2)->getType(), |
| 2528 | "Stored value type does not match pointer operand type!", &CXI, ElTy); |
Eli Friedman | c9a551e | 2011-07-28 21:48:00 +0000 | [diff] [blame] | 2529 | visitInstruction(CXI); |
| 2530 | } |
| 2531 | |
| 2532 | void Verifier::visitAtomicRMWInst(AtomicRMWInst &RMWI) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2533 | Assert(RMWI.getOrdering() != NotAtomic, |
| 2534 | "atomicrmw instructions must be atomic.", &RMWI); |
| 2535 | Assert(RMWI.getOrdering() != Unordered, |
| 2536 | "atomicrmw instructions cannot be unordered.", &RMWI); |
Eli Friedman | c9a551e | 2011-07-28 21:48:00 +0000 | [diff] [blame] | 2537 | PointerType *PTy = dyn_cast<PointerType>(RMWI.getOperand(0)->getType()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2538 | Assert(PTy, "First atomicrmw operand must be a pointer.", &RMWI); |
Eli Friedman | c9a551e | 2011-07-28 21:48:00 +0000 | [diff] [blame] | 2539 | Type *ElTy = PTy->getElementType(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2540 | Assert(ElTy->isIntegerTy(), "atomicrmw operand must have integer type!", |
| 2541 | &RMWI, ElTy); |
Eli Friedman | 79a6b30 | 2012-08-17 23:24:29 +0000 | [diff] [blame] | 2542 | unsigned Size = ElTy->getPrimitiveSizeInBits(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2543 | Assert(Size >= 8 && !(Size & (Size - 1)), |
| 2544 | "atomicrmw operand must be power-of-two byte-sized integer", &RMWI, |
| 2545 | ElTy); |
| 2546 | Assert(ElTy == RMWI.getOperand(1)->getType(), |
| 2547 | "Argument value type does not match pointer operand type!", &RMWI, |
| 2548 | ElTy); |
| 2549 | Assert(AtomicRMWInst::FIRST_BINOP <= RMWI.getOperation() && |
| 2550 | RMWI.getOperation() <= AtomicRMWInst::LAST_BINOP, |
| 2551 | "Invalid binary operation!", &RMWI); |
Eli Friedman | c9a551e | 2011-07-28 21:48:00 +0000 | [diff] [blame] | 2552 | visitInstruction(RMWI); |
| 2553 | } |
| 2554 | |
Eli Friedman | fee02c6 | 2011-07-25 23:16:38 +0000 | [diff] [blame] | 2555 | void Verifier::visitFenceInst(FenceInst &FI) { |
| 2556 | const AtomicOrdering Ordering = FI.getOrdering(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2557 | Assert(Ordering == Acquire || Ordering == Release || |
| 2558 | Ordering == AcquireRelease || Ordering == SequentiallyConsistent, |
| 2559 | "fence instructions may only have " |
| 2560 | "acquire, release, acq_rel, or seq_cst ordering.", |
| 2561 | &FI); |
Eli Friedman | fee02c6 | 2011-07-25 23:16:38 +0000 | [diff] [blame] | 2562 | visitInstruction(FI); |
| 2563 | } |
| 2564 | |
Dan Gohman | fa1211f | 2008-07-23 00:34:11 +0000 | [diff] [blame] | 2565 | void Verifier::visitExtractValueInst(ExtractValueInst &EVI) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2566 | Assert(ExtractValueInst::getIndexedType(EVI.getAggregateOperand()->getType(), |
| 2567 | EVI.getIndices()) == EVI.getType(), |
| 2568 | "Invalid ExtractValueInst operands!", &EVI); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2569 | |
Dan Gohman | fa1211f | 2008-07-23 00:34:11 +0000 | [diff] [blame] | 2570 | visitInstruction(EVI); |
Devang Patel | 295711f | 2008-02-19 22:15:16 +0000 | [diff] [blame] | 2571 | } |
| 2572 | |
Dan Gohman | fa1211f | 2008-07-23 00:34:11 +0000 | [diff] [blame] | 2573 | void Verifier::visitInsertValueInst(InsertValueInst &IVI) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2574 | Assert(ExtractValueInst::getIndexedType(IVI.getAggregateOperand()->getType(), |
| 2575 | IVI.getIndices()) == |
| 2576 | IVI.getOperand(1)->getType(), |
| 2577 | "Invalid InsertValueInst operands!", &IVI); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2578 | |
Dan Gohman | fa1211f | 2008-07-23 00:34:11 +0000 | [diff] [blame] | 2579 | visitInstruction(IVI); |
| 2580 | } |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 2581 | |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 2582 | void Verifier::visitLandingPadInst(LandingPadInst &LPI) { |
| 2583 | BasicBlock *BB = LPI.getParent(); |
| 2584 | |
| 2585 | // The landingpad instruction is ill-formed if it doesn't have any clauses and |
| 2586 | // isn't a cleanup. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2587 | Assert(LPI.getNumClauses() > 0 || LPI.isCleanup(), |
| 2588 | "LandingPadInst needs at least one clause or to be a cleanup.", &LPI); |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 2589 | |
| 2590 | // The landingpad instruction defines its parent as a landing pad block. The |
| 2591 | // landing pad block may be branched to only by the unwind edge of an invoke. |
Duncan P. N. Exon Smith | 6c99015 | 2014-07-21 17:06:51 +0000 | [diff] [blame] | 2592 | for (pred_iterator I = pred_begin(BB), E = pred_end(BB); I != E; ++I) { |
| 2593 | const InvokeInst *II = dyn_cast<InvokeInst>((*I)->getTerminator()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2594 | Assert(II && II->getUnwindDest() == BB && II->getNormalDest() != BB, |
| 2595 | "Block containing LandingPadInst must be jumped to " |
| 2596 | "only by the unwind edge of an invoke.", |
| 2597 | &LPI); |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 2598 | } |
| 2599 | |
| 2600 | // The landingpad instruction must be the first non-PHI instruction in the |
| 2601 | // block. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2602 | Assert(LPI.getParent()->getLandingPadInst() == &LPI, |
| 2603 | "LandingPadInst not the first non-PHI instruction in the block.", |
| 2604 | &LPI); |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 2605 | |
| 2606 | // The personality functions for all landingpad instructions within the same |
| 2607 | // function should match. |
| 2608 | if (PersonalityFn) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2609 | Assert(LPI.getPersonalityFn() == PersonalityFn, |
| 2610 | "Personality function doesn't match others in function", &LPI); |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 2611 | PersonalityFn = LPI.getPersonalityFn(); |
| 2612 | |
Duncan Sands | 86de1a6 | 2011-09-27 16:43:19 +0000 | [diff] [blame] | 2613 | // All operands must be constants. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2614 | Assert(isa<Constant>(PersonalityFn), "Personality function is not constant!", |
| 2615 | &LPI); |
Duncan Sands | 86de1a6 | 2011-09-27 16:43:19 +0000 | [diff] [blame] | 2616 | for (unsigned i = 0, e = LPI.getNumClauses(); i < e; ++i) { |
Rafael Espindola | 4dc5dfc | 2014-06-04 18:51:31 +0000 | [diff] [blame] | 2617 | Constant *Clause = LPI.getClause(i); |
Duncan Sands | 68ba813 | 2011-09-27 19:34:22 +0000 | [diff] [blame] | 2618 | if (LPI.isCatch(i)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2619 | Assert(isa<PointerType>(Clause->getType()), |
| 2620 | "Catch operand does not have pointer type!", &LPI); |
Duncan Sands | 68ba813 | 2011-09-27 19:34:22 +0000 | [diff] [blame] | 2621 | } else { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2622 | Assert(LPI.isFilter(i), "Clause is neither catch nor filter!", &LPI); |
| 2623 | Assert(isa<ConstantArray>(Clause) || isa<ConstantAggregateZero>(Clause), |
| 2624 | "Filter operand is not an array of constants!", &LPI); |
Duncan Sands | 68ba813 | 2011-09-27 19:34:22 +0000 | [diff] [blame] | 2625 | } |
Duncan Sands | 86de1a6 | 2011-09-27 16:43:19 +0000 | [diff] [blame] | 2626 | } |
| 2627 | |
Bill Wendling | fae1475 | 2011-08-12 20:24:12 +0000 | [diff] [blame] | 2628 | visitInstruction(LPI); |
| 2629 | } |
| 2630 | |
Rafael Espindola | 654320a | 2012-02-26 02:23:37 +0000 | [diff] [blame] | 2631 | void Verifier::verifyDominatesUse(Instruction &I, unsigned i) { |
| 2632 | Instruction *Op = cast<Instruction>(I.getOperand(i)); |
Rafael Espindola | 9a16735 | 2012-08-17 18:21:28 +0000 | [diff] [blame] | 2633 | // If the we have an invalid invoke, don't try to compute the dominance. |
| 2634 | // We already reject it in the invoke specific checks and the dominance |
| 2635 | // computation doesn't handle multiple edges. |
| 2636 | if (InvokeInst *II = dyn_cast<InvokeInst>(Op)) { |
| 2637 | if (II->getNormalDest() == II->getUnwindDest()) |
| 2638 | return; |
| 2639 | } |
Rafael Espindola | 654320a | 2012-02-26 02:23:37 +0000 | [diff] [blame] | 2640 | |
Rafael Espindola | 103c2cf | 2012-06-01 21:56:26 +0000 | [diff] [blame] | 2641 | const Use &U = I.getOperandUse(i); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2642 | Assert(InstsInThisBlock.count(Op) || DT.dominates(Op, U), |
| 2643 | "Instruction does not dominate all uses!", Op, &I); |
Rafael Espindola | 654320a | 2012-02-26 02:23:37 +0000 | [diff] [blame] | 2644 | } |
| 2645 | |
Misha Brukman | c566ca36 | 2004-03-02 00:22:19 +0000 | [diff] [blame] | 2646 | /// verifyInstruction - Verify that an instruction is well formed. |
| 2647 | /// |
Chris Lattner | 069a795 | 2002-06-25 15:56:27 +0000 | [diff] [blame] | 2648 | void Verifier::visitInstruction(Instruction &I) { |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 2649 | BasicBlock *BB = I.getParent(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2650 | Assert(BB, "Instruction not embedded in basic block!", &I); |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 2651 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 2652 | if (!isa<PHINode>(I)) { // Check that non-phi nodes are not self referential |
Ahmed Charles | 821b666 | 2014-03-09 04:57:09 +0000 | [diff] [blame] | 2653 | for (User *U : I.users()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2654 | Assert(U != (User *)&I || !DT.isReachableFromEntry(BB), |
| 2655 | "Only PHI nodes may reference their own value!", &I); |
Ahmed Charles | 821b666 | 2014-03-09 04:57:09 +0000 | [diff] [blame] | 2656 | } |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 2657 | } |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 2658 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 2659 | // Check that void typed values don't have names |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2660 | Assert(!I.getType()->isVoidTy() || !I.hasName(), |
| 2661 | "Instruction has a name, but provides a void value!", &I); |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 2662 | |
Chris Lattner | 5f126b7 | 2004-03-29 00:29:36 +0000 | [diff] [blame] | 2663 | // Check that the return value of the instruction is either void or a legal |
| 2664 | // value type. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2665 | Assert(I.getType()->isVoidTy() || I.getType()->isFirstClassType(), |
| 2666 | "Instruction returns a non-scalar type!", &I); |
Chris Lattner | 5f126b7 | 2004-03-29 00:29:36 +0000 | [diff] [blame] | 2667 | |
Nick Lewycky | 93e06a5 | 2009-09-27 23:27:42 +0000 | [diff] [blame] | 2668 | // Check that the instruction doesn't produce metadata. Calls are already |
| 2669 | // checked against the callee type. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2670 | Assert(!I.getType()->isMetadataTy() || isa<CallInst>(I) || isa<InvokeInst>(I), |
| 2671 | "Invalid use of metadata!", &I); |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 2672 | |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 2673 | // Check that all uses of the instruction, if they are instructions |
| 2674 | // themselves, actually have parent basic blocks. If the use is not an |
| 2675 | // instruction, it is an error! |
Chandler Carruth | cdf4788 | 2014-03-09 03:16:01 +0000 | [diff] [blame] | 2676 | for (Use &U : I.uses()) { |
| 2677 | if (Instruction *Used = dyn_cast<Instruction>(U.getUser())) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2678 | Assert(Used->getParent() != nullptr, |
| 2679 | "Instruction referencing" |
| 2680 | " instruction not embedded in a basic block!", |
| 2681 | &I, Used); |
Nick Lewycky | 984161a | 2009-09-08 02:02:39 +0000 | [diff] [blame] | 2682 | else { |
Chandler Carruth | cdf4788 | 2014-03-09 03:16:01 +0000 | [diff] [blame] | 2683 | CheckFailed("Use of instruction is not an instruction!", U); |
Nick Lewycky | 984161a | 2009-09-08 02:02:39 +0000 | [diff] [blame] | 2684 | return; |
| 2685 | } |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 2686 | } |
| 2687 | |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 2688 | for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2689 | Assert(I.getOperand(i) != nullptr, "Instruction has null operand!", &I); |
Chris Lattner | b7e1ef5 | 2006-07-11 20:29:49 +0000 | [diff] [blame] | 2690 | |
| 2691 | // Check to make sure that only first-class-values are operands to |
| 2692 | // instructions. |
Devang Patel | 1f00b53 | 2008-02-21 01:54:02 +0000 | [diff] [blame] | 2693 | if (!I.getOperand(i)->getType()->isFirstClassType()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2694 | Assert(0, "Instruction operands must be first-class values!", &I); |
Devang Patel | 1f00b53 | 2008-02-21 01:54:02 +0000 | [diff] [blame] | 2695 | } |
Nick Lewycky | adbc284 | 2009-05-30 05:06:04 +0000 | [diff] [blame] | 2696 | |
Chris Lattner | 9ece94b | 2004-03-14 03:23:54 +0000 | [diff] [blame] | 2697 | if (Function *F = dyn_cast<Function>(I.getOperand(i))) { |
Chris Lattner | b7e1ef5 | 2006-07-11 20:29:49 +0000 | [diff] [blame] | 2698 | // Check to make sure that the "address of" an intrinsic function is never |
| 2699 | // taken. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2700 | Assert( |
| 2701 | !F->isIntrinsic() || |
| 2702 | i == (isa<CallInst>(I) ? e - 1 : isa<InvokeInst>(I) ? e - 3 : 0), |
| 2703 | "Cannot take the address of an intrinsic!", &I); |
| 2704 | Assert( |
| 2705 | !F->isIntrinsic() || isa<CallInst>(I) || |
Juergen Ributzka | ad2363f | 2014-10-17 17:39:00 +0000 | [diff] [blame] | 2706 | F->getIntrinsicID() == Intrinsic::donothing || |
| 2707 | F->getIntrinsicID() == Intrinsic::experimental_patchpoint_void || |
Igor Laevsky | 9570ff9 | 2015-02-19 11:28:47 +0000 | [diff] [blame] | 2708 | F->getIntrinsicID() == Intrinsic::experimental_patchpoint_i64 || |
| 2709 | F->getIntrinsicID() == Intrinsic::experimental_gc_statepoint, |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2710 | "Cannot invoke an intrinsinc other than" |
| 2711 | " donothing or patchpoint", |
| 2712 | &I); |
| 2713 | Assert(F->getParent() == M, "Referencing function in another module!", |
| 2714 | &I); |
Chris Lattner | 9ece94b | 2004-03-14 03:23:54 +0000 | [diff] [blame] | 2715 | } else if (BasicBlock *OpBB = dyn_cast<BasicBlock>(I.getOperand(i))) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2716 | Assert(OpBB->getParent() == BB->getParent(), |
| 2717 | "Referring to a basic block in another function!", &I); |
Chris Lattner | 9ece94b | 2004-03-14 03:23:54 +0000 | [diff] [blame] | 2718 | } else if (Argument *OpArg = dyn_cast<Argument>(I.getOperand(i))) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2719 | Assert(OpArg->getParent() == BB->getParent(), |
| 2720 | "Referring to an argument in another function!", &I); |
Chris Lattner | 4ff0452 | 2007-04-20 21:48:08 +0000 | [diff] [blame] | 2721 | } else if (GlobalValue *GV = dyn_cast<GlobalValue>(I.getOperand(i))) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2722 | Assert(GV->getParent() == M, "Referencing global in another module!", &I); |
Rafael Espindola | 654320a | 2012-02-26 02:23:37 +0000 | [diff] [blame] | 2723 | } else if (isa<Instruction>(I.getOperand(i))) { |
| 2724 | verifyDominatesUse(I, i); |
Chris Lattner | 41eb5cd | 2006-01-26 00:08:45 +0000 | [diff] [blame] | 2725 | } else if (isa<InlineAsm>(I.getOperand(i))) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2726 | Assert((i + 1 == e && isa<CallInst>(I)) || |
| 2727 | (i + 3 == e && isa<InvokeInst>(I)), |
| 2728 | "Cannot take the address of an inline asm!", &I); |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 2729 | } else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(I.getOperand(i))) { |
| 2730 | if (CE->getType()->isPtrOrPtrVectorTy()) { |
| 2731 | // If we have a ConstantExpr pointer, we need to see if it came from an |
| 2732 | // illegal bitcast (inttoptr <constant int> ) |
| 2733 | SmallVector<const ConstantExpr *, 4> Stack; |
| 2734 | SmallPtrSet<const ConstantExpr *, 4> Visited; |
| 2735 | Stack.push_back(CE); |
| 2736 | |
| 2737 | while (!Stack.empty()) { |
| 2738 | const ConstantExpr *V = Stack.pop_back_val(); |
David Blaikie | 70573dc | 2014-11-19 07:49:26 +0000 | [diff] [blame] | 2739 | if (!Visited.insert(V).second) |
Matt Arsenault | 24b49c4 | 2013-07-31 17:49:08 +0000 | [diff] [blame] | 2740 | continue; |
| 2741 | |
| 2742 | VerifyConstantExprBitcastType(V); |
| 2743 | |
| 2744 | for (unsigned I = 0, N = V->getNumOperands(); I != N; ++I) { |
| 2745 | if (ConstantExpr *Op = dyn_cast<ConstantExpr>(V->getOperand(I))) |
| 2746 | Stack.push_back(Op); |
| 2747 | } |
| 2748 | } |
| 2749 | } |
Chris Lattner | df9779c | 2003-10-05 17:44:18 +0000 | [diff] [blame] | 2750 | } |
| 2751 | } |
Rafael Espindola | ef9f550 | 2012-03-24 00:14:51 +0000 | [diff] [blame] | 2752 | |
Duncan P. N. Exon Smith | de36e80 | 2014-11-11 21:30:22 +0000 | [diff] [blame] | 2753 | if (MDNode *MD = I.getMetadata(LLVMContext::MD_fpmath)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2754 | Assert(I.getType()->isFPOrFPVectorTy(), |
| 2755 | "fpmath requires a floating point result!", &I); |
| 2756 | Assert(MD->getNumOperands() == 1, "fpmath takes one operand!", &I); |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 2757 | if (ConstantFP *CFP0 = |
| 2758 | mdconst::dyn_extract_or_null<ConstantFP>(MD->getOperand(0))) { |
Duncan Sands | 05f4df8 | 2012-04-16 16:28:59 +0000 | [diff] [blame] | 2759 | APFloat Accuracy = CFP0->getValueAPF(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2760 | Assert(Accuracy.isFiniteNonZero() && !Accuracy.isNegative(), |
| 2761 | "fpmath accuracy not a positive number!", &I); |
Duncan Sands | 05f4df8 | 2012-04-16 16:28:59 +0000 | [diff] [blame] | 2762 | } else { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2763 | Assert(false, "invalid fpmath accuracy!", &I); |
Duncan Sands | 05f4df8 | 2012-04-16 16:28:59 +0000 | [diff] [blame] | 2764 | } |
Duncan Sands | af06b26 | 2012-04-10 08:22:43 +0000 | [diff] [blame] | 2765 | } |
| 2766 | |
Duncan P. N. Exon Smith | de36e80 | 2014-11-11 21:30:22 +0000 | [diff] [blame] | 2767 | if (MDNode *Range = I.getMetadata(LLVMContext::MD_range)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2768 | Assert(isa<LoadInst>(I) || isa<CallInst>(I) || isa<InvokeInst>(I), |
| 2769 | "Ranges are only for loads, calls and invokes!", &I); |
Philip Reames | bf9676f | 2014-10-20 23:52:07 +0000 | [diff] [blame] | 2770 | visitRangeMetadata(I, Range, I.getType()); |
| 2771 | } |
Rafael Espindola | ef9f550 | 2012-03-24 00:14:51 +0000 | [diff] [blame] | 2772 | |
Philip Reames | 0ca58b3 | 2014-10-21 20:56:29 +0000 | [diff] [blame] | 2773 | if (I.getMetadata(LLVMContext::MD_nonnull)) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2774 | Assert(I.getType()->isPointerTy(), "nonnull applies only to pointer types", |
| 2775 | &I); |
| 2776 | Assert(isa<LoadInst>(I), |
| 2777 | "nonnull applies only to load instructions, use attributes" |
| 2778 | " for calls or invokes", |
| 2779 | &I); |
Philip Reames | 0ca58b3 | 2014-10-21 20:56:29 +0000 | [diff] [blame] | 2780 | } |
| 2781 | |
Duncan P. N. Exon Smith | a3bdc32 | 2015-03-20 19:26:58 +0000 | [diff] [blame] | 2782 | if (MDNode *N = I.getDebugLoc().getAsMDNode()) { |
Duncan P. N. Exon Smith | fc25da1 | 2015-03-24 17:32:19 +0000 | [diff] [blame] | 2783 | Assert(isa<MDLocation>(N), "invalid !dbg metadata attachment", &I, N); |
| 2784 | visitMDNode(*N); |
Duncan P. N. Exon Smith | a3bdc32 | 2015-03-20 19:26:58 +0000 | [diff] [blame] | 2785 | } |
| 2786 | |
Chris Lattner | c9e79d0 | 2004-09-29 20:07:45 +0000 | [diff] [blame] | 2787 | InstsInThisBlock.insert(&I); |
Chris Lattner | bb346d0 | 2003-05-08 03:47:33 +0000 | [diff] [blame] | 2788 | } |
| 2789 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2790 | /// VerifyIntrinsicType - Verify that the specified type (which comes from an |
| 2791 | /// intrinsic argument or return value) matches the type constraints specified |
| 2792 | /// by the .td file (e.g. an "any integer" argument really is an integer). |
| 2793 | /// |
| 2794 | /// This return true on error but does not print a message. |
| 2795 | bool Verifier::VerifyIntrinsicType(Type *Ty, |
| 2796 | ArrayRef<Intrinsic::IITDescriptor> &Infos, |
| 2797 | SmallVectorImpl<Type*> &ArgTys) { |
| 2798 | using namespace Intrinsic; |
| 2799 | |
| 2800 | // If we ran out of descriptors, there are too many arguments. |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2801 | if (Infos.empty()) return true; |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2802 | IITDescriptor D = Infos.front(); |
| 2803 | Infos = Infos.slice(1); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2804 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2805 | switch (D.Kind) { |
| 2806 | case IITDescriptor::Void: return !Ty->isVoidTy(); |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2807 | case IITDescriptor::VarArg: return true; |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2808 | case IITDescriptor::MMX: return !Ty->isX86_MMXTy(); |
| 2809 | case IITDescriptor::Metadata: return !Ty->isMetadataTy(); |
Michael Ilseman | 6c6d715 | 2013-01-11 01:45:05 +0000 | [diff] [blame] | 2810 | case IITDescriptor::Half: return !Ty->isHalfTy(); |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2811 | case IITDescriptor::Float: return !Ty->isFloatTy(); |
| 2812 | case IITDescriptor::Double: return !Ty->isDoubleTy(); |
| 2813 | case IITDescriptor::Integer: return !Ty->isIntegerTy(D.Integer_Width); |
| 2814 | case IITDescriptor::Vector: { |
| 2815 | VectorType *VT = dyn_cast<VectorType>(Ty); |
Craig Topper | c620761 | 2014-04-09 06:08:46 +0000 | [diff] [blame] | 2816 | return !VT || VT->getNumElements() != D.Vector_Width || |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2817 | VerifyIntrinsicType(VT->getElementType(), Infos, ArgTys); |
| 2818 | } |
| 2819 | case IITDescriptor::Pointer: { |
| 2820 | PointerType *PT = dyn_cast<PointerType>(Ty); |
Craig Topper | c620761 | 2014-04-09 06:08:46 +0000 | [diff] [blame] | 2821 | return !PT || PT->getAddressSpace() != D.Pointer_AddressSpace || |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2822 | VerifyIntrinsicType(PT->getElementType(), Infos, ArgTys); |
| 2823 | } |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2824 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2825 | case IITDescriptor::Struct: { |
| 2826 | StructType *ST = dyn_cast<StructType>(Ty); |
Craig Topper | c620761 | 2014-04-09 06:08:46 +0000 | [diff] [blame] | 2827 | if (!ST || ST->getNumElements() != D.Struct_NumElements) |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2828 | return true; |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2829 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2830 | for (unsigned i = 0, e = D.Struct_NumElements; i != e; ++i) |
| 2831 | if (VerifyIntrinsicType(ST->getElementType(i), Infos, ArgTys)) |
| 2832 | return true; |
| 2833 | return false; |
| 2834 | } |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2835 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2836 | case IITDescriptor::Argument: |
Benjamin Kramer | bde9176 | 2012-06-02 10:20:22 +0000 | [diff] [blame] | 2837 | // Two cases here - If this is the second occurrence of an argument, verify |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2838 | // that the later instance matches the previous instance. |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2839 | if (D.getArgumentNumber() < ArgTys.size()) |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2840 | return Ty != ArgTys[D.getArgumentNumber()]; |
| 2841 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2842 | // Otherwise, if this is the first instance of an argument, record it and |
| 2843 | // verify the "Any" kind. |
| 2844 | assert(D.getArgumentNumber() == ArgTys.size() && "Table consistency error"); |
| 2845 | ArgTys.push_back(Ty); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2846 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2847 | switch (D.getArgumentKind()) { |
Ramkumar Ramachandra | 75a4f35 | 2015-01-22 20:14:38 +0000 | [diff] [blame] | 2848 | case IITDescriptor::AK_Any: return false; // Success |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2849 | case IITDescriptor::AK_AnyInteger: return !Ty->isIntOrIntVectorTy(); |
| 2850 | case IITDescriptor::AK_AnyFloat: return !Ty->isFPOrFPVectorTy(); |
| 2851 | case IITDescriptor::AK_AnyVector: return !isa<VectorType>(Ty); |
| 2852 | case IITDescriptor::AK_AnyPointer: return !isa<PointerType>(Ty); |
| 2853 | } |
| 2854 | llvm_unreachable("all argument kinds not covered"); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2855 | |
Tim Northover | aa3cf1e | 2014-03-28 12:31:39 +0000 | [diff] [blame] | 2856 | case IITDescriptor::ExtendArgument: { |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2857 | // This may only be used when referring to a previous vector argument. |
Tim Northover | aa3cf1e | 2014-03-28 12:31:39 +0000 | [diff] [blame] | 2858 | if (D.getArgumentNumber() >= ArgTys.size()) |
| 2859 | return true; |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2860 | |
Tim Northover | aa3cf1e | 2014-03-28 12:31:39 +0000 | [diff] [blame] | 2861 | Type *NewTy = ArgTys[D.getArgumentNumber()]; |
| 2862 | if (VectorType *VTy = dyn_cast<VectorType>(NewTy)) |
| 2863 | NewTy = VectorType::getExtendedElementVectorType(VTy); |
| 2864 | else if (IntegerType *ITy = dyn_cast<IntegerType>(NewTy)) |
| 2865 | NewTy = IntegerType::get(ITy->getContext(), 2 * ITy->getBitWidth()); |
| 2866 | else |
| 2867 | return true; |
| 2868 | |
| 2869 | return Ty != NewTy; |
| 2870 | } |
| 2871 | case IITDescriptor::TruncArgument: { |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2872 | // This may only be used when referring to a previous vector argument. |
Tim Northover | aa3cf1e | 2014-03-28 12:31:39 +0000 | [diff] [blame] | 2873 | if (D.getArgumentNumber() >= ArgTys.size()) |
| 2874 | return true; |
| 2875 | |
| 2876 | Type *NewTy = ArgTys[D.getArgumentNumber()]; |
| 2877 | if (VectorType *VTy = dyn_cast<VectorType>(NewTy)) |
| 2878 | NewTy = VectorType::getTruncatedElementVectorType(VTy); |
| 2879 | else if (IntegerType *ITy = dyn_cast<IntegerType>(NewTy)) |
| 2880 | NewTy = IntegerType::get(ITy->getContext(), ITy->getBitWidth() / 2); |
| 2881 | else |
| 2882 | return true; |
| 2883 | |
| 2884 | return Ty != NewTy; |
| 2885 | } |
Tim Northover | 4516de3 | 2014-03-29 07:04:54 +0000 | [diff] [blame] | 2886 | case IITDescriptor::HalfVecArgument: |
| 2887 | // This may only be used when referring to a previous vector argument. |
| 2888 | return D.getArgumentNumber() >= ArgTys.size() || |
| 2889 | !isa<VectorType>(ArgTys[D.getArgumentNumber()]) || |
| 2890 | VectorType::getHalfElementsVectorType( |
| 2891 | cast<VectorType>(ArgTys[D.getArgumentNumber()])) != Ty; |
Elena Demikhovsky | f1de34b | 2014-12-04 09:40:44 +0000 | [diff] [blame] | 2892 | case IITDescriptor::SameVecWidthArgument: { |
| 2893 | if (D.getArgumentNumber() >= ArgTys.size()) |
| 2894 | return true; |
| 2895 | VectorType * ReferenceType = |
| 2896 | dyn_cast<VectorType>(ArgTys[D.getArgumentNumber()]); |
| 2897 | VectorType *ThisArgType = dyn_cast<VectorType>(Ty); |
| 2898 | if (!ThisArgType || !ReferenceType || |
| 2899 | (ReferenceType->getVectorNumElements() != |
| 2900 | ThisArgType->getVectorNumElements())) |
| 2901 | return true; |
| 2902 | return VerifyIntrinsicType(ThisArgType->getVectorElementType(), |
| 2903 | Infos, ArgTys); |
| 2904 | } |
Elena Demikhovsky | fb81b93 | 2014-12-25 07:49:20 +0000 | [diff] [blame] | 2905 | case IITDescriptor::PtrToArgument: { |
| 2906 | if (D.getArgumentNumber() >= ArgTys.size()) |
| 2907 | return true; |
| 2908 | Type * ReferenceType = ArgTys[D.getArgumentNumber()]; |
| 2909 | PointerType *ThisArgType = dyn_cast<PointerType>(Ty); |
| 2910 | return (!ThisArgType || ThisArgType->getElementType() != ReferenceType); |
| 2911 | } |
Elena Demikhovsky | 23a485a | 2015-02-08 08:27:19 +0000 | [diff] [blame] | 2912 | case IITDescriptor::VecOfPtrsToElt: { |
| 2913 | if (D.getArgumentNumber() >= ArgTys.size()) |
| 2914 | return true; |
| 2915 | VectorType * ReferenceType = |
| 2916 | dyn_cast<VectorType> (ArgTys[D.getArgumentNumber()]); |
| 2917 | VectorType *ThisArgVecTy = dyn_cast<VectorType>(Ty); |
| 2918 | if (!ThisArgVecTy || !ReferenceType || |
| 2919 | (ReferenceType->getVectorNumElements() != |
| 2920 | ThisArgVecTy->getVectorNumElements())) |
| 2921 | return true; |
| 2922 | PointerType *ThisArgEltTy = |
| 2923 | dyn_cast<PointerType>(ThisArgVecTy->getVectorElementType()); |
| 2924 | if (!ThisArgEltTy) |
| 2925 | return true; |
| 2926 | return (!(ThisArgEltTy->getElementType() == |
| 2927 | ReferenceType->getVectorElementType())); |
| 2928 | } |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2929 | } |
| 2930 | llvm_unreachable("unhandled"); |
| 2931 | } |
Bob Wilson | f76486a | 2009-01-07 00:09:01 +0000 | [diff] [blame] | 2932 | |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2933 | /// \brief Verify if the intrinsic has variable arguments. |
| 2934 | /// This method is intended to be called after all the fixed arguments have been |
| 2935 | /// verified first. |
| 2936 | /// |
| 2937 | /// This method returns true on error and does not print an error message. |
| 2938 | bool |
| 2939 | Verifier::VerifyIntrinsicIsVarArg(bool isVarArg, |
| 2940 | ArrayRef<Intrinsic::IITDescriptor> &Infos) { |
| 2941 | using namespace Intrinsic; |
| 2942 | |
| 2943 | // If there are no descriptors left, then it can't be a vararg. |
| 2944 | if (Infos.empty()) |
David Blaikie | dc3f01e | 2015-03-09 01:57:13 +0000 | [diff] [blame] | 2945 | return isVarArg; |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2946 | |
| 2947 | // There should be only one descriptor remaining at this point. |
| 2948 | if (Infos.size() != 1) |
| 2949 | return true; |
| 2950 | |
| 2951 | // Check and verify the descriptor. |
| 2952 | IITDescriptor D = Infos.front(); |
| 2953 | Infos = Infos.slice(1); |
| 2954 | if (D.Kind == IITDescriptor::VarArg) |
David Blaikie | dc3f01e | 2015-03-09 01:57:13 +0000 | [diff] [blame] | 2955 | return !isVarArg; |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2956 | |
| 2957 | return true; |
| 2958 | } |
| 2959 | |
Chris Lattner | bb346d0 | 2003-05-08 03:47:33 +0000 | [diff] [blame] | 2960 | /// visitIntrinsicFunction - Allow intrinsics to be verified in different ways. |
Misha Brukman | c566ca36 | 2004-03-02 00:22:19 +0000 | [diff] [blame] | 2961 | /// |
Brian Gaeke | 960707c | 2003-11-11 22:41:34 +0000 | [diff] [blame] | 2962 | void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) { |
Chris Lattner | bb346d0 | 2003-05-08 03:47:33 +0000 | [diff] [blame] | 2963 | Function *IF = CI.getCalledFunction(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2964 | Assert(IF->isDeclaration(), "Intrinsic functions should never be defined!", |
| 2965 | IF); |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 2966 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2967 | // Verify that the intrinsic prototype lines up with what the .td files |
| 2968 | // describe. |
| 2969 | FunctionType *IFTy = IF->getFunctionType(); |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2970 | bool IsVarArg = IFTy->isVarArg(); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 2971 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2972 | SmallVector<Intrinsic::IITDescriptor, 8> Table; |
| 2973 | getIntrinsicInfoTableEntries(ID, Table); |
| 2974 | ArrayRef<Intrinsic::IITDescriptor> TableRef = Table; |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 2975 | |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2976 | SmallVector<Type *, 4> ArgTys; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2977 | Assert(!VerifyIntrinsicType(IFTy->getReturnType(), TableRef, ArgTys), |
| 2978 | "Intrinsic has incorrect return type!", IF); |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2979 | for (unsigned i = 0, e = IFTy->getNumParams(); i != e; ++i) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2980 | Assert(!VerifyIntrinsicType(IFTy->getParamType(i), TableRef, ArgTys), |
| 2981 | "Intrinsic has incorrect argument type!", IF); |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2982 | |
| 2983 | // Verify if the intrinsic call matches the vararg property. |
| 2984 | if (IsVarArg) |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2985 | Assert(!VerifyIntrinsicIsVarArg(IsVarArg, TableRef), |
| 2986 | "Intrinsic was not defined with variable arguments!", IF); |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2987 | else |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2988 | Assert(!VerifyIntrinsicIsVarArg(IsVarArg, TableRef), |
| 2989 | "Callsite was not defined with variable arguments!", IF); |
Andrew Trick | a2efd99 | 2013-10-31 17:18:11 +0000 | [diff] [blame] | 2990 | |
| 2991 | // All descriptors should be absorbed by now. |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2992 | Assert(TableRef.empty(), "Intrinsic has too few arguments!", IF); |
Chris Lattner | 144b619 | 2012-05-27 19:37:05 +0000 | [diff] [blame] | 2993 | |
| 2994 | // Now that we have the intrinsic ID and the actual argument types (and we |
| 2995 | // know they are legal for the intrinsic!) get the intrinsic name through the |
| 2996 | // usual means. This allows us to verify the mangling of argument types into |
| 2997 | // the name. |
Justin Bogner | 28e1cf6 | 2014-03-10 21:22:44 +0000 | [diff] [blame] | 2998 | const std::string ExpectedName = Intrinsic::getName(ID, ArgTys); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 2999 | Assert(ExpectedName == IF->getName(), |
| 3000 | "Intrinsic name not mangled correctly for type arguments! " |
| 3001 | "Should be: " + |
| 3002 | ExpectedName, |
| 3003 | IF); |
Matt Arsenault | c4c9226 | 2013-07-20 17:46:00 +0000 | [diff] [blame] | 3004 | |
Chris Lattner | 588096e | 2009-12-28 09:07:21 +0000 | [diff] [blame] | 3005 | // If the intrinsic takes MDNode arguments, verify that they are either global |
| 3006 | // or are local to *this* function. |
Bill Wendling | cfcd0e1 | 2010-06-07 19:18:58 +0000 | [diff] [blame] | 3007 | for (unsigned i = 0, e = CI.getNumArgOperands(); i != e; ++i) |
Duncan P. N. Exon Smith | 5bf8fef | 2014-12-09 18:38:53 +0000 | [diff] [blame] | 3008 | if (auto *MD = dyn_cast<MetadataAsValue>(CI.getArgOperand(i))) |
| 3009 | visitMetadataAsValue(*MD, CI.getParent()->getParent()); |
Victor Hernandez | 0471abd | 2009-12-18 20:09:14 +0000 | [diff] [blame] | 3010 | |
Gordon Henriksen | a2f3e13 | 2007-09-17 20:30:04 +0000 | [diff] [blame] | 3011 | switch (ID) { |
| 3012 | default: |
| 3013 | break; |
Chandler Carruth | 026cc37 | 2011-12-12 04:36:02 +0000 | [diff] [blame] | 3014 | case Intrinsic::ctlz: // llvm.ctlz |
| 3015 | case Intrinsic::cttz: // llvm.cttz |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3016 | Assert(isa<ConstantInt>(CI.getArgOperand(1)), |
| 3017 | "is_zero_undef argument of bit counting intrinsics must be a " |
| 3018 | "constant int", |
| 3019 | &CI); |
Chandler Carruth | 026cc37 | 2011-12-12 04:36:02 +0000 | [diff] [blame] | 3020 | break; |
Duncan P. N. Exon Smith | 959299e | 2015-03-15 00:50:57 +0000 | [diff] [blame] | 3021 | case Intrinsic::dbg_declare: // llvm.dbg.declare |
| 3022 | Assert(isa<MetadataAsValue>(CI.getArgOperand(0)), |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3023 | "invalid llvm.dbg.declare intrinsic call 1", &CI); |
Duncan P. N. Exon Smith | 166121a | 2015-03-15 01:21:30 +0000 | [diff] [blame] | 3024 | visitDbgIntrinsic("declare", cast<DbgDeclareInst>(CI)); |
| 3025 | break; |
| 3026 | case Intrinsic::dbg_value: // llvm.dbg.value |
| 3027 | visitDbgIntrinsic("value", cast<DbgValueInst>(CI)); |
Duncan P. N. Exon Smith | 959299e | 2015-03-15 00:50:57 +0000 | [diff] [blame] | 3028 | break; |
Chris Lattner | dd70834 | 2008-11-21 16:42:48 +0000 | [diff] [blame] | 3029 | case Intrinsic::memcpy: |
| 3030 | case Intrinsic::memmove: |
Owen Anderson | 63fbf10 | 2015-03-02 09:35:06 +0000 | [diff] [blame] | 3031 | case Intrinsic::memset: { |
| 3032 | ConstantInt *AlignCI = dyn_cast<ConstantInt>(CI.getArgOperand(3)); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3033 | Assert(AlignCI, |
| 3034 | "alignment argument of memory intrinsics must be a constant int", |
| 3035 | &CI); |
Owen Anderson | 63fbf10 | 2015-03-02 09:35:06 +0000 | [diff] [blame] | 3036 | const APInt &AlignVal = AlignCI->getValue(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3037 | Assert(AlignCI->isZero() || AlignVal.isPowerOf2(), |
| 3038 | "alignment argument of memory intrinsics must be a power of 2", &CI); |
| 3039 | Assert(isa<ConstantInt>(CI.getArgOperand(4)), |
| 3040 | "isvolatile argument of memory intrinsics must be a constant int", |
| 3041 | &CI); |
Chris Lattner | ecded9a | 2008-08-23 05:31:10 +0000 | [diff] [blame] | 3042 | break; |
Owen Anderson | 63fbf10 | 2015-03-02 09:35:06 +0000 | [diff] [blame] | 3043 | } |
Bill Wendling | 05604e0 | 2008-08-23 09:46:46 +0000 | [diff] [blame] | 3044 | case Intrinsic::gcroot: |
| 3045 | case Intrinsic::gcwrite: |
Chris Lattner | 2585206 | 2008-08-24 20:46:13 +0000 | [diff] [blame] | 3046 | case Intrinsic::gcread: |
| 3047 | if (ID == Intrinsic::gcroot) { |
Gordon Henriksen | bf40eee | 2008-10-25 16:28:35 +0000 | [diff] [blame] | 3048 | AllocaInst *AI = |
Gabor Greif | 4d18165 | 2010-06-23 13:56:57 +0000 | [diff] [blame] | 3049 | dyn_cast<AllocaInst>(CI.getArgOperand(0)->stripPointerCasts()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3050 | Assert(AI, "llvm.gcroot parameter #1 must be an alloca.", &CI); |
| 3051 | Assert(isa<Constant>(CI.getArgOperand(1)), |
| 3052 | "llvm.gcroot parameter #2 must be a constant.", &CI); |
Talin | 2e59f14 | 2010-09-30 20:23:47 +0000 | [diff] [blame] | 3053 | if (!AI->getType()->getElementType()->isPointerTy()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3054 | Assert(!isa<ConstantPointerNull>(CI.getArgOperand(1)), |
| 3055 | "llvm.gcroot parameter #1 must either be a pointer alloca, " |
| 3056 | "or argument #2 must be a non-null constant.", |
| 3057 | &CI); |
Talin | 2e59f14 | 2010-09-30 20:23:47 +0000 | [diff] [blame] | 3058 | } |
Chris Lattner | 2585206 | 2008-08-24 20:46:13 +0000 | [diff] [blame] | 3059 | } |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 3060 | |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3061 | Assert(CI.getParent()->getParent()->hasGC(), |
| 3062 | "Enclosing function does not use GC.", &CI); |
Chris Lattner | 2585206 | 2008-08-24 20:46:13 +0000 | [diff] [blame] | 3063 | break; |
Duncan Sands | f72ff0c | 2007-09-29 16:25:54 +0000 | [diff] [blame] | 3064 | case Intrinsic::init_trampoline: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3065 | Assert(isa<Function>(CI.getArgOperand(1)->stripPointerCasts()), |
| 3066 | "llvm.init_trampoline parameter #2 must resolve to a function.", |
| 3067 | &CI); |
Gordon Henriksen | 9157c49 | 2007-12-25 02:02:10 +0000 | [diff] [blame] | 3068 | break; |
Chris Lattner | 229f765 | 2008-10-16 06:00:36 +0000 | [diff] [blame] | 3069 | case Intrinsic::prefetch: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3070 | Assert(isa<ConstantInt>(CI.getArgOperand(1)) && |
| 3071 | isa<ConstantInt>(CI.getArgOperand(2)) && |
| 3072 | cast<ConstantInt>(CI.getArgOperand(1))->getZExtValue() < 2 && |
| 3073 | cast<ConstantInt>(CI.getArgOperand(2))->getZExtValue() < 4, |
| 3074 | "invalid arguments to llvm.prefetch", &CI); |
Chris Lattner | 229f765 | 2008-10-16 06:00:36 +0000 | [diff] [blame] | 3075 | break; |
Bill Wendling | d8e312d | 2008-11-18 23:09:31 +0000 | [diff] [blame] | 3076 | case Intrinsic::stackprotector: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3077 | Assert(isa<AllocaInst>(CI.getArgOperand(1)->stripPointerCasts()), |
| 3078 | "llvm.stackprotector parameter #2 must resolve to an alloca.", &CI); |
Bill Wendling | d8e312d | 2008-11-18 23:09:31 +0000 | [diff] [blame] | 3079 | break; |
Nick Lewycky | 9bc8904 | 2009-10-13 07:57:33 +0000 | [diff] [blame] | 3080 | case Intrinsic::lifetime_start: |
| 3081 | case Intrinsic::lifetime_end: |
| 3082 | case Intrinsic::invariant_start: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3083 | Assert(isa<ConstantInt>(CI.getArgOperand(0)), |
| 3084 | "size argument of memory use markers must be a constant integer", |
| 3085 | &CI); |
Nick Lewycky | 9bc8904 | 2009-10-13 07:57:33 +0000 | [diff] [blame] | 3086 | break; |
| 3087 | case Intrinsic::invariant_end: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3088 | Assert(isa<ConstantInt>(CI.getArgOperand(1)), |
| 3089 | "llvm.invariant.end parameter #2 must be a constant integer", &CI); |
Nick Lewycky | 9bc8904 | 2009-10-13 07:57:33 +0000 | [diff] [blame] | 3090 | break; |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 3091 | |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 3092 | case Intrinsic::frameescape: { |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 3093 | BasicBlock *BB = CI.getParent(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3094 | Assert(BB == &BB->getParent()->front(), |
| 3095 | "llvm.frameescape used outside of entry block", &CI); |
| 3096 | Assert(!SawFrameEscape, |
| 3097 | "multiple calls to llvm.frameescape in one function", &CI); |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 3098 | for (Value *Arg : CI.arg_operands()) { |
| 3099 | auto *AI = dyn_cast<AllocaInst>(Arg->stripPointerCasts()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3100 | Assert(AI && AI->isStaticAlloca(), |
| 3101 | "llvm.frameescape only accepts static allocas", &CI); |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 3102 | } |
| 3103 | FrameEscapeInfo[BB->getParent()].first = CI.getNumArgOperands(); |
| 3104 | SawFrameEscape = true; |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 3105 | break; |
| 3106 | } |
Reid Kleckner | 3542ace | 2015-01-13 01:51:34 +0000 | [diff] [blame] | 3107 | case Intrinsic::framerecover: { |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 3108 | Value *FnArg = CI.getArgOperand(0)->stripPointerCasts(); |
| 3109 | Function *Fn = dyn_cast<Function>(FnArg); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3110 | Assert(Fn && !Fn->isDeclaration(), |
| 3111 | "llvm.framerecover first " |
| 3112 | "argument must be function defined in this module", |
| 3113 | &CI); |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 3114 | auto *IdxArg = dyn_cast<ConstantInt>(CI.getArgOperand(2)); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3115 | Assert(IdxArg, "idx argument of llvm.framerecover must be a constant int", |
| 3116 | &CI); |
Reid Kleckner | cfb9ce5 | 2015-03-05 18:26:34 +0000 | [diff] [blame] | 3117 | auto &Entry = FrameEscapeInfo[Fn]; |
| 3118 | Entry.second = unsigned( |
| 3119 | std::max(uint64_t(Entry.second), IdxArg->getLimitedValue(~0U) + 1)); |
Reid Kleckner | e9b8931 | 2015-01-13 00:48:10 +0000 | [diff] [blame] | 3120 | break; |
| 3121 | } |
| 3122 | |
David Majnemer | b919dd6 | 2015-03-27 04:17:07 +0000 | [diff] [blame] | 3123 | case Intrinsic::eh_parentframe: { |
| 3124 | auto *AI = dyn_cast<AllocaInst>(CI.getArgOperand(0)->stripPointerCasts()); |
| 3125 | Assert(AI && AI->isStaticAlloca(), |
| 3126 | "llvm.eh.parentframe requires a static alloca", &CI); |
| 3127 | break; |
| 3128 | } |
| 3129 | |
Reid Kleckner | 7e9546b | 2015-03-25 20:10:36 +0000 | [diff] [blame] | 3130 | case Intrinsic::eh_unwindhelp: { |
| 3131 | auto *AI = dyn_cast<AllocaInst>(CI.getArgOperand(0)->stripPointerCasts()); |
| 3132 | Assert(AI && AI->isStaticAlloca(), |
| 3133 | "llvm.eh.unwindhelp requires a static alloca", &CI); |
| 3134 | break; |
| 3135 | } |
| 3136 | |
Philip Reames | 1ffa937 | 2015-01-30 23:28:05 +0000 | [diff] [blame] | 3137 | case Intrinsic::experimental_gc_statepoint: |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3138 | Assert(!CI.isInlineAsm(), |
| 3139 | "gc.statepoint support for inline assembly unimplemented", &CI); |
Philip Reames | e1bf270 | 2015-03-27 05:09:33 +0000 | [diff] [blame] | 3140 | Assert(CI.getParent()->getParent()->hasGC(), |
| 3141 | "Enclosing function does not use GC.", &CI); |
Philip Reames | 0285c74 | 2015-02-03 23:18:47 +0000 | [diff] [blame] | 3142 | |
| 3143 | VerifyStatepoint(ImmutableCallSite(&CI)); |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3144 | break; |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3145 | case Intrinsic::experimental_gc_result_int: |
| 3146 | case Intrinsic::experimental_gc_result_float: |
Ramkumar Ramachandra | 75a4f35 | 2015-01-22 20:14:38 +0000 | [diff] [blame] | 3147 | case Intrinsic::experimental_gc_result_ptr: |
| 3148 | case Intrinsic::experimental_gc_result: { |
Philip Reames | e1bf270 | 2015-03-27 05:09:33 +0000 | [diff] [blame] | 3149 | Assert(CI.getParent()->getParent()->hasGC(), |
| 3150 | "Enclosing function does not use GC.", &CI); |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3151 | // Are we tied to a statepoint properly? |
| 3152 | CallSite StatepointCS(CI.getArgOperand(0)); |
Philip Reames | 76ebd15 | 2015-01-07 22:48:01 +0000 | [diff] [blame] | 3153 | const Function *StatepointFn = |
| 3154 | StatepointCS.getInstruction() ? StatepointCS.getCalledFunction() : nullptr; |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3155 | Assert(StatepointFn && StatepointFn->isDeclaration() && |
| 3156 | StatepointFn->getIntrinsicID() == |
| 3157 | Intrinsic::experimental_gc_statepoint, |
| 3158 | "gc.result operand #1 must be from a statepoint", &CI, |
| 3159 | CI.getArgOperand(0)); |
Philip Reames | 38303a3 | 2014-12-03 19:53:15 +0000 | [diff] [blame] | 3160 | |
Philip Reames | b23713a | 2014-12-03 22:23:24 +0000 | [diff] [blame] | 3161 | // Assert that result type matches wrapped callee. |
| 3162 | const Value *Target = StatepointCS.getArgument(0); |
| 3163 | const PointerType *PT = cast<PointerType>(Target->getType()); |
| 3164 | const FunctionType *TargetFuncType = |
| 3165 | cast<FunctionType>(PT->getElementType()); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3166 | Assert(CI.getType() == TargetFuncType->getReturnType(), |
| 3167 | "gc.result result type does not match wrapped callee", &CI); |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3168 | break; |
| 3169 | } |
| 3170 | case Intrinsic::experimental_gc_relocate: { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3171 | Assert(CI.getNumArgOperands() == 3, "wrong number of arguments", &CI); |
Igor Laevsky | 9570ff9 | 2015-02-19 11:28:47 +0000 | [diff] [blame] | 3172 | |
| 3173 | // Check that this relocate is correctly tied to the statepoint |
| 3174 | |
| 3175 | // This is case for relocate on the unwinding path of an invoke statepoint |
| 3176 | if (ExtractValueInst *ExtractValue = |
| 3177 | dyn_cast<ExtractValueInst>(CI.getArgOperand(0))) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3178 | Assert(isa<LandingPadInst>(ExtractValue->getAggregateOperand()), |
| 3179 | "gc relocate on unwind path incorrectly linked to the statepoint", |
| 3180 | &CI); |
Igor Laevsky | 9570ff9 | 2015-02-19 11:28:47 +0000 | [diff] [blame] | 3181 | |
| 3182 | const BasicBlock *invokeBB = |
| 3183 | ExtractValue->getParent()->getUniquePredecessor(); |
| 3184 | |
| 3185 | // Landingpad relocates should have only one predecessor with invoke |
| 3186 | // statepoint terminator |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3187 | Assert(invokeBB, "safepoints should have unique landingpads", |
| 3188 | ExtractValue->getParent()); |
| 3189 | Assert(invokeBB->getTerminator(), "safepoint block should be well formed", |
| 3190 | invokeBB); |
| 3191 | Assert(isStatepoint(invokeBB->getTerminator()), |
| 3192 | "gc relocate should be linked to a statepoint", invokeBB); |
Igor Laevsky | 9570ff9 | 2015-02-19 11:28:47 +0000 | [diff] [blame] | 3193 | } |
| 3194 | else { |
| 3195 | // In all other cases relocate should be tied to the statepoint directly. |
| 3196 | // This covers relocates on a normal return path of invoke statepoint and |
| 3197 | // relocates of a call statepoint |
| 3198 | auto Token = CI.getArgOperand(0); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3199 | Assert(isa<Instruction>(Token) && isStatepoint(cast<Instruction>(Token)), |
| 3200 | "gc relocate is incorrectly tied to the statepoint", &CI, Token); |
Igor Laevsky | 9570ff9 | 2015-02-19 11:28:47 +0000 | [diff] [blame] | 3201 | } |
| 3202 | |
| 3203 | // Verify rest of the relocate arguments |
| 3204 | |
| 3205 | GCRelocateOperands ops(&CI); |
| 3206 | ImmutableCallSite StatepointCS(ops.statepoint()); |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3207 | |
| 3208 | // Both the base and derived must be piped through the safepoint |
| 3209 | Value* Base = CI.getArgOperand(1); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3210 | Assert(isa<ConstantInt>(Base), |
| 3211 | "gc.relocate operand #2 must be integer offset", &CI); |
| 3212 | |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3213 | Value* Derived = CI.getArgOperand(2); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3214 | Assert(isa<ConstantInt>(Derived), |
| 3215 | "gc.relocate operand #3 must be integer offset", &CI); |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3216 | |
| 3217 | const int BaseIndex = cast<ConstantInt>(Base)->getZExtValue(); |
| 3218 | const int DerivedIndex = cast<ConstantInt>(Derived)->getZExtValue(); |
| 3219 | // Check the bounds |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3220 | Assert(0 <= BaseIndex && BaseIndex < (int)StatepointCS.arg_size(), |
| 3221 | "gc.relocate: statepoint base index out of bounds", &CI); |
| 3222 | Assert(0 <= DerivedIndex && DerivedIndex < (int)StatepointCS.arg_size(), |
| 3223 | "gc.relocate: statepoint derived index out of bounds", &CI); |
Philip Reames | 76ebd15 | 2015-01-07 22:48:01 +0000 | [diff] [blame] | 3224 | |
| 3225 | // Check that BaseIndex and DerivedIndex fall within the 'gc parameters' |
| 3226 | // section of the statepoint's argument |
Owen Anderson | 3e7e67b | 2015-03-10 05:58:21 +0000 | [diff] [blame] | 3227 | Assert(StatepointCS.arg_size() > 0, |
| 3228 | "gc.statepoint: insufficient arguments"); |
Owen Anderson | a3c68fd | 2015-03-11 06:57:30 +0000 | [diff] [blame] | 3229 | Assert(isa<ConstantInt>(StatepointCS.getArgument(1)), |
| 3230 | "gc.statement: number of call arguments must be constant integer"); |
Owen Anderson | 3e7e67b | 2015-03-10 05:58:21 +0000 | [diff] [blame] | 3231 | const unsigned NumCallArgs = |
Philip Reames | 76ebd15 | 2015-01-07 22:48:01 +0000 | [diff] [blame] | 3232 | cast<ConstantInt>(StatepointCS.getArgument(1))->getZExtValue(); |
Owen Anderson | 3e7e67b | 2015-03-10 05:58:21 +0000 | [diff] [blame] | 3233 | Assert(StatepointCS.arg_size() > NumCallArgs+3, |
| 3234 | "gc.statepoint: mismatch in number of call arguments"); |
Owen Anderson | a3c68fd | 2015-03-11 06:57:30 +0000 | [diff] [blame] | 3235 | Assert(isa<ConstantInt>(StatepointCS.getArgument(NumCallArgs+3)), |
| 3236 | "gc.statepoint: number of deoptimization arguments must be " |
| 3237 | "a constant integer"); |
Philip Reames | 76ebd15 | 2015-01-07 22:48:01 +0000 | [diff] [blame] | 3238 | const int NumDeoptArgs = |
| 3239 | cast<ConstantInt>(StatepointCS.getArgument(NumCallArgs + 3))->getZExtValue(); |
| 3240 | const int GCParamArgsStart = NumCallArgs + NumDeoptArgs + 4; |
| 3241 | const int GCParamArgsEnd = StatepointCS.arg_size(); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3242 | Assert(GCParamArgsStart <= BaseIndex && BaseIndex < GCParamArgsEnd, |
| 3243 | "gc.relocate: statepoint base index doesn't fall within the " |
| 3244 | "'gc parameters' section of the statepoint call", |
| 3245 | &CI); |
| 3246 | Assert(GCParamArgsStart <= DerivedIndex && DerivedIndex < GCParamArgsEnd, |
| 3247 | "gc.relocate: statepoint derived index doesn't fall within the " |
| 3248 | "'gc parameters' section of the statepoint call", |
| 3249 | &CI); |
Philip Reames | 38303a3 | 2014-12-03 19:53:15 +0000 | [diff] [blame] | 3250 | |
Philip Reames | b23713a | 2014-12-03 22:23:24 +0000 | [diff] [blame] | 3251 | // Assert that the result type matches the type of the relocated pointer |
| 3252 | GCRelocateOperands Operands(&CI); |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3253 | Assert(Operands.derivedPtr()->getType() == CI.getType(), |
| 3254 | "gc.relocate: relocating a pointer shouldn't change its type", &CI); |
Philip Reames | 337c4bd | 2014-12-01 21:18:12 +0000 | [diff] [blame] | 3255 | break; |
| 3256 | } |
| 3257 | }; |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 3258 | } |
| 3259 | |
Duncan P. N. Exon Smith | 166121a | 2015-03-15 01:21:30 +0000 | [diff] [blame] | 3260 | template <class DbgIntrinsicTy> |
| 3261 | void Verifier::visitDbgIntrinsic(StringRef Kind, DbgIntrinsicTy &DII) { |
| 3262 | auto *MD = cast<MetadataAsValue>(DII.getArgOperand(0))->getMetadata(); |
| 3263 | Assert(isa<ValueAsMetadata>(MD) || |
| 3264 | (isa<MDNode>(MD) && !cast<MDNode>(MD)->getNumOperands()), |
| 3265 | "invalid llvm.dbg." + Kind + " intrinsic address/value", &DII, MD); |
| 3266 | Assert(isa<MDLocalVariable>(DII.getRawVariable()), |
| 3267 | "invalid llvm.dbg." + Kind + " intrinsic variable", &DII, |
| 3268 | DII.getRawVariable()); |
| 3269 | Assert(isa<MDExpression>(DII.getRawExpression()), |
| 3270 | "invalid llvm.dbg." + Kind + " intrinsic expression", &DII, |
| 3271 | DII.getRawExpression()); |
Duncan P. N. Exon Smith | 166121a | 2015-03-15 01:21:30 +0000 | [diff] [blame] | 3272 | } |
| 3273 | |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 3274 | void Verifier::verifyDebugInfo() { |
| 3275 | // Run the debug info verifier only if the regular verifier succeeds, since |
| 3276 | // sometimes checks that have already failed will cause crashes here. |
| 3277 | if (EverBroken || !VerifyDebugInfo) |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3278 | return; |
| 3279 | |
| 3280 | DebugInfoFinder Finder; |
| 3281 | Finder.processModule(*M); |
| 3282 | processInstructions(Finder); |
| 3283 | |
Manman Ren | 74c61b9 | 2013-07-19 00:31:03 +0000 | [diff] [blame] | 3284 | // Verify Debug Info. |
Duncan P. N. Exon Smith | 0d64001 | 2014-04-15 17:28:26 +0000 | [diff] [blame] | 3285 | // |
| 3286 | // NOTE: The loud braces are necessary for MSVC compatibility. |
| 3287 | for (DICompileUnit CU : Finder.compile_units()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3288 | Assert(CU.Verify(), "DICompileUnit does not Verify!", CU); |
Duncan P. N. Exon Smith | 0d64001 | 2014-04-15 17:28:26 +0000 | [diff] [blame] | 3289 | } |
| 3290 | for (DISubprogram S : Finder.subprograms()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3291 | Assert(S.Verify(), "DISubprogram does not Verify!", S); |
Duncan P. N. Exon Smith | 0d64001 | 2014-04-15 17:28:26 +0000 | [diff] [blame] | 3292 | } |
| 3293 | for (DIGlobalVariable GV : Finder.global_variables()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3294 | Assert(GV.Verify(), "DIGlobalVariable does not Verify!", GV); |
Duncan P. N. Exon Smith | 0d64001 | 2014-04-15 17:28:26 +0000 | [diff] [blame] | 3295 | } |
| 3296 | for (DIType T : Finder.types()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3297 | Assert(T.Verify(), "DIType does not Verify!", T); |
Duncan P. N. Exon Smith | 0d64001 | 2014-04-15 17:28:26 +0000 | [diff] [blame] | 3298 | } |
| 3299 | for (DIScope S : Finder.scopes()) { |
Benjamin Kramer | f027ad7 | 2015-03-07 21:15:40 +0000 | [diff] [blame] | 3300 | Assert(S.Verify(), "DIScope does not Verify!", S); |
Duncan P. N. Exon Smith | 0d64001 | 2014-04-15 17:28:26 +0000 | [diff] [blame] | 3301 | } |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3302 | } |
| 3303 | |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 3304 | void Verifier::processInstructions(DebugInfoFinder &Finder) { |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3305 | for (const Function &F : *M) |
| 3306 | for (auto I = inst_begin(&F), E = inst_end(&F); I != E; ++I) { |
Duncan P. N. Exon Smith | de36e80 | 2014-11-11 21:30:22 +0000 | [diff] [blame] | 3307 | if (MDNode *MD = I->getMetadata(LLVMContext::MD_dbg)) |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3308 | Finder.processLocation(*M, DILocation(MD)); |
| 3309 | if (const CallInst *CI = dyn_cast<CallInst>(&*I)) |
| 3310 | processCallInst(Finder, *CI); |
Alon Mishne | ad31215 | 2014-03-18 09:41:07 +0000 | [diff] [blame] | 3311 | } |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3312 | } |
| 3313 | |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 3314 | void Verifier::processCallInst(DebugInfoFinder &Finder, const CallInst &CI) { |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3315 | if (Function *F = CI.getCalledFunction()) |
| 3316 | if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID()) |
| 3317 | switch (ID) { |
Duncan P. N. Exon Smith | 9255a55 | 2015-03-16 21:05:33 +0000 | [diff] [blame] | 3318 | case Intrinsic::dbg_declare: |
| 3319 | Finder.processDeclare(*M, cast<DbgDeclareInst>(&CI)); |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3320 | break; |
Duncan P. N. Exon Smith | 9255a55 | 2015-03-16 21:05:33 +0000 | [diff] [blame] | 3321 | case Intrinsic::dbg_value: |
| 3322 | Finder.processValue(*M, cast<DbgValueInst>(&CI)); |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3323 | break; |
| 3324 | default: |
| 3325 | break; |
| 3326 | } |
Manman Ren | 74c61b9 | 2013-07-19 00:31:03 +0000 | [diff] [blame] | 3327 | } |
| 3328 | |
Chris Lattner | 0e851da | 2002-04-18 20:37:37 +0000 | [diff] [blame] | 3329 | //===----------------------------------------------------------------------===// |
| 3330 | // Implement the public interfaces to this file... |
| 3331 | //===----------------------------------------------------------------------===// |
| 3332 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3333 | bool llvm::verifyFunction(const Function &f, raw_ostream *OS) { |
Chandler Carruth | bf2b652 | 2014-01-17 11:09:34 +0000 | [diff] [blame] | 3334 | Function &F = const_cast<Function &>(f); |
Reid Spencer | 5301e7c | 2007-01-30 20:08:39 +0000 | [diff] [blame] | 3335 | assert(!F.isDeclaration() && "Cannot verify external functions"); |
Misha Brukman | b1c9317 | 2005-04-21 23:48:37 +0000 | [diff] [blame] | 3336 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3337 | raw_null_ostream NullStr; |
| 3338 | Verifier V(OS ? *OS : NullStr); |
| 3339 | |
| 3340 | // Note that this function's return value is inverted from what you would |
| 3341 | // expect of a function called "verify". |
| 3342 | return !V.verify(F); |
Chris Lattner | d02f08d | 2002-02-20 17:55:43 +0000 | [diff] [blame] | 3343 | } |
| 3344 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3345 | bool llvm::verifyModule(const Module &M, raw_ostream *OS) { |
| 3346 | raw_null_ostream NullStr; |
| 3347 | Verifier V(OS ? *OS : NullStr); |
Nick Lewycky | 3fc8980 | 2009-09-07 20:44:51 +0000 | [diff] [blame] | 3348 | |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3349 | bool Broken = false; |
| 3350 | for (Module::const_iterator I = M.begin(), E = M.end(); I != E; ++I) |
Rafael Espindola | d4bcefc | 2014-10-24 18:13:04 +0000 | [diff] [blame] | 3351 | if (!I->isDeclaration() && !I->isMaterializable()) |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3352 | Broken |= !V.verify(*I); |
| 3353 | |
| 3354 | // Note that this function's return value is inverted from what you would |
| 3355 | // expect of a function called "verify". |
Duncan P. N. Exon Smith | 8b866d1 | 2015-03-20 00:48:23 +0000 | [diff] [blame] | 3356 | return !V.verify(M) || Broken; |
Chris Lattner | 2f7c963 | 2001-06-06 20:29:01 +0000 | [diff] [blame] | 3357 | } |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3358 | |
| 3359 | namespace { |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3360 | struct VerifierLegacyPass : public FunctionPass { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3361 | static char ID; |
| 3362 | |
| 3363 | Verifier V; |
| 3364 | bool FatalErrors; |
| 3365 | |
Duncan P. N. Exon Smith | 6fb58c4 | 2015-03-15 00:46:57 +0000 | [diff] [blame] | 3366 | VerifierLegacyPass() : FunctionPass(ID), V(dbgs()), FatalErrors(true) { |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3367 | initializeVerifierLegacyPassPass(*PassRegistry::getPassRegistry()); |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3368 | } |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3369 | explicit VerifierLegacyPass(bool FatalErrors) |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3370 | : FunctionPass(ID), V(dbgs()), FatalErrors(FatalErrors) { |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3371 | initializeVerifierLegacyPassPass(*PassRegistry::getPassRegistry()); |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3372 | } |
| 3373 | |
Craig Topper | f398d7c | 2014-03-05 06:35:38 +0000 | [diff] [blame] | 3374 | bool runOnFunction(Function &F) override { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3375 | if (!V.verify(F) && FatalErrors) |
| 3376 | report_fatal_error("Broken function found, compilation aborted!"); |
| 3377 | |
| 3378 | return false; |
| 3379 | } |
| 3380 | |
Craig Topper | f398d7c | 2014-03-05 06:35:38 +0000 | [diff] [blame] | 3381 | bool doFinalization(Module &M) override { |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3382 | if (!V.verify(M) && FatalErrors) |
| 3383 | report_fatal_error("Broken module found, compilation aborted!"); |
| 3384 | |
Duncan P. N. Exon Smith | 6ef5f28 | 2014-04-15 16:27:38 +0000 | [diff] [blame] | 3385 | return false; |
| 3386 | } |
| 3387 | |
| 3388 | void getAnalysisUsage(AnalysisUsage &AU) const override { |
| 3389 | AU.setPreservesAll(); |
| 3390 | } |
| 3391 | }; |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3392 | } |
| 3393 | |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3394 | char VerifierLegacyPass::ID = 0; |
| 3395 | INITIALIZE_PASS(VerifierLegacyPass, "verify", "Module Verifier", false, false) |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3396 | |
| 3397 | FunctionPass *llvm::createVerifierPass(bool FatalErrors) { |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3398 | return new VerifierLegacyPass(FatalErrors); |
Chandler Carruth | 043949d | 2014-01-19 02:22:18 +0000 | [diff] [blame] | 3399 | } |
| 3400 | |
Chandler Carruth | d174ce4 | 2015-01-05 02:47:05 +0000 | [diff] [blame] | 3401 | PreservedAnalyses VerifierPass::run(Module &M) { |
| 3402 | if (verifyModule(M, &dbgs()) && FatalErrors) |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3403 | report_fatal_error("Broken module found, compilation aborted!"); |
| 3404 | |
| 3405 | return PreservedAnalyses::all(); |
| 3406 | } |
| 3407 | |
Chandler Carruth | d174ce4 | 2015-01-05 02:47:05 +0000 | [diff] [blame] | 3408 | PreservedAnalyses VerifierPass::run(Function &F) { |
| 3409 | if (verifyFunction(F, &dbgs()) && FatalErrors) |
Chandler Carruth | 4d35631 | 2014-01-20 11:34:08 +0000 | [diff] [blame] | 3410 | report_fatal_error("Broken function found, compilation aborted!"); |
| 3411 | |
| 3412 | return PreservedAnalyses::all(); |
| 3413 | } |