Daniel Dunbar | 7147577 | 2009-07-17 20:42:00 +0000 | [diff] [blame] | 1 | //===-- X86AsmParser.cpp - Parse X86 assembly to MCInst instructions ------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
Evan Cheng | 1142444 | 2011-07-26 00:24:13 +0000 | [diff] [blame] | 10 | #include "MCTargetDesc/X86BaseInfo.h" |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 11 | #include "X86AsmInstrumentation.h" |
Evgeniy Stepanov | e3804d4 | 2014-02-28 12:28:07 +0000 | [diff] [blame] | 12 | #include "X86AsmParserCommon.h" |
| 13 | #include "X86Operand.h" |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 14 | #include "InstPrinter/X86IntelInstPrinter.h" |
Craig Topper | 690d8ea | 2013-07-24 07:33:14 +0000 | [diff] [blame] | 15 | #include "llvm/ADT/STLExtras.h" |
Chris Lattner | 1261b81 | 2010-09-22 04:11:10 +0000 | [diff] [blame] | 16 | #include "llvm/ADT/SmallString.h" |
| 17 | #include "llvm/ADT/SmallVector.h" |
Chris Lattner | 1261b81 | 2010-09-22 04:11:10 +0000 | [diff] [blame] | 18 | #include "llvm/ADT/StringSwitch.h" |
| 19 | #include "llvm/ADT/Twine.h" |
Chad Rosier | 8a24466 | 2013-04-02 20:02:33 +0000 | [diff] [blame] | 20 | #include "llvm/MC/MCContext.h" |
Chandler Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 21 | #include "llvm/MC/MCExpr.h" |
| 22 | #include "llvm/MC/MCInst.h" |
Evgeniy Stepanov | f4a3699 | 2014-04-24 13:29:34 +0000 | [diff] [blame] | 23 | #include "llvm/MC/MCInstrInfo.h" |
Chandler Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 24 | #include "llvm/MC/MCParser/MCAsmLexer.h" |
| 25 | #include "llvm/MC/MCParser/MCAsmParser.h" |
| 26 | #include "llvm/MC/MCParser/MCParsedAsmOperand.h" |
Benjamin Kramer | b3e8a6d | 2016-01-27 10:01:28 +0000 | [diff] [blame] | 27 | #include "llvm/MC/MCParser/MCTargetAsmParser.h" |
Chandler Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 28 | #include "llvm/MC/MCRegisterInfo.h" |
Michael Zuckerman | 02ecd43 | 2015-12-13 17:07:23 +0000 | [diff] [blame] | 29 | #include "llvm/MC/MCSection.h" |
Chandler Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 30 | #include "llvm/MC/MCStreamer.h" |
| 31 | #include "llvm/MC/MCSubtargetInfo.h" |
| 32 | #include "llvm/MC/MCSymbol.h" |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 33 | #include "llvm/Support/SourceMgr.h" |
Evan Cheng | 2bb4035 | 2011-08-24 18:08:43 +0000 | [diff] [blame] | 34 | #include "llvm/Support/TargetRegistry.h" |
Daniel Dunbar | 7d7b4d1 | 2010-08-12 00:55:42 +0000 | [diff] [blame] | 35 | #include "llvm/Support/raw_ostream.h" |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 36 | #include <algorithm> |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 37 | #include <memory> |
Evan Cheng | 4d1ca96 | 2011-07-08 01:53:10 +0000 | [diff] [blame] | 38 | |
Daniel Dunbar | 7147577 | 2009-07-17 20:42:00 +0000 | [diff] [blame] | 39 | using namespace llvm; |
| 40 | |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 41 | static bool checkScale(unsigned Scale, StringRef &ErrMsg) { |
| 42 | if (Scale != 1 && Scale != 2 && Scale != 4 && Scale != 8) { |
| 43 | ErrMsg = "scale factor in address must be 1, 2, 4 or 8"; |
| 44 | return true; |
| 45 | } |
| 46 | return false; |
| 47 | } |
| 48 | |
Daniel Dunbar | 7147577 | 2009-07-17 20:42:00 +0000 | [diff] [blame] | 49 | namespace { |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 50 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 51 | static const char OpPrecedence[] = { |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 52 | 0, // IC_OR |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 53 | 1, // IC_XOR |
| 54 | 2, // IC_AND |
| 55 | 3, // IC_LSHIFT |
| 56 | 3, // IC_RSHIFT |
| 57 | 4, // IC_PLUS |
| 58 | 4, // IC_MINUS |
| 59 | 5, // IC_MULTIPLY |
| 60 | 5, // IC_DIVIDE |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 61 | 5, // IC_MOD |
| 62 | 6, // IC_NOT |
| 63 | 7, // IC_NEG |
| 64 | 8, // IC_RPAREN |
| 65 | 9, // IC_LPAREN |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 66 | 0, // IC_IMM |
| 67 | 0 // IC_REGISTER |
| 68 | }; |
| 69 | |
Devang Patel | 4a6e778 | 2012-01-12 18:03:40 +0000 | [diff] [blame] | 70 | class X86AsmParser : public MCTargetAsmParser { |
Chad Rosier | f0e8720 | 2012-10-25 20:41:34 +0000 | [diff] [blame] | 71 | ParseInstructionInfo *InstInfo; |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 72 | std::unique_ptr<X86AsmInstrumentation> Instrumentation; |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 73 | bool Code16GCC; |
NAKAMURA Takumi | a9cb538 | 2015-09-22 11:14:39 +0000 | [diff] [blame] | 74 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 75 | private: |
Alp Toker | a5b88a5 | 2013-12-02 16:06:06 +0000 | [diff] [blame] | 76 | SMLoc consumeToken() { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 77 | MCAsmParser &Parser = getParser(); |
Alp Toker | a5b88a5 | 2013-12-02 16:06:06 +0000 | [diff] [blame] | 78 | SMLoc Result = Parser.getTok().getLoc(); |
| 79 | Parser.Lex(); |
| 80 | return Result; |
| 81 | } |
| 82 | |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 83 | unsigned MatchInstruction(const OperandVector &Operands, MCInst &Inst, |
| 84 | uint64_t &ErrorInfo, bool matchingInlineAsm, |
| 85 | unsigned VariantID = 0) { |
| 86 | // In Code16GCC mode, match as 32-bit. |
| 87 | if (Code16GCC) |
| 88 | SwitchMode(X86::Mode32Bit); |
| 89 | unsigned rv = MatchInstructionImpl(Operands, Inst, ErrorInfo, |
| 90 | matchingInlineAsm, VariantID); |
| 91 | if (Code16GCC) |
| 92 | SwitchMode(X86::Mode16Bit); |
| 93 | return rv; |
| 94 | } |
| 95 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 96 | enum InfixCalculatorTok { |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 97 | IC_OR = 0, |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 98 | IC_XOR, |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 99 | IC_AND, |
Kevin Enderby | d6b1071 | 2014-02-06 01:21:15 +0000 | [diff] [blame] | 100 | IC_LSHIFT, |
| 101 | IC_RSHIFT, |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 102 | IC_PLUS, |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 103 | IC_MINUS, |
| 104 | IC_MULTIPLY, |
| 105 | IC_DIVIDE, |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 106 | IC_MOD, |
| 107 | IC_NOT, |
| 108 | IC_NEG, |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 109 | IC_RPAREN, |
| 110 | IC_LPAREN, |
| 111 | IC_IMM, |
| 112 | IC_REGISTER |
| 113 | }; |
| 114 | |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 115 | enum IntelOperatorKind { |
| 116 | IOK_INVALID = 0, |
| 117 | IOK_LENGTH, |
| 118 | IOK_SIZE, |
| 119 | IOK_TYPE, |
| 120 | IOK_OFFSET |
| 121 | }; |
| 122 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 123 | class InfixCalculator { |
| 124 | typedef std::pair< InfixCalculatorTok, int64_t > ICToken; |
| 125 | SmallVector<InfixCalculatorTok, 4> InfixOperatorStack; |
| 126 | SmallVector<ICToken, 4> PostfixStack; |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 127 | |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 128 | bool isUnaryOperator(const InfixCalculatorTok Op) { |
| 129 | return Op == IC_NEG || Op == IC_NOT; |
| 130 | } |
| 131 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 132 | public: |
| 133 | int64_t popOperand() { |
| 134 | assert (!PostfixStack.empty() && "Poped an empty stack!"); |
| 135 | ICToken Op = PostfixStack.pop_back_val(); |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 136 | if (!(Op.first == IC_IMM || Op.first == IC_REGISTER)) |
| 137 | return -1; // The invalid Scale value will be caught later by checkScale |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 138 | return Op.second; |
| 139 | } |
| 140 | void pushOperand(InfixCalculatorTok Op, int64_t Val = 0) { |
| 141 | assert ((Op == IC_IMM || Op == IC_REGISTER) && |
| 142 | "Unexpected operand!"); |
| 143 | PostfixStack.push_back(std::make_pair(Op, Val)); |
| 144 | } |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 145 | |
Jakub Staszak | 9c34922 | 2013-08-08 15:48:46 +0000 | [diff] [blame] | 146 | void popOperator() { InfixOperatorStack.pop_back(); } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 147 | void pushOperator(InfixCalculatorTok Op) { |
| 148 | // Push the new operator if the stack is empty. |
| 149 | if (InfixOperatorStack.empty()) { |
| 150 | InfixOperatorStack.push_back(Op); |
| 151 | return; |
| 152 | } |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 153 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 154 | // Push the new operator if it has a higher precedence than the operator |
| 155 | // on the top of the stack or the operator on the top of the stack is a |
| 156 | // left parentheses. |
| 157 | unsigned Idx = InfixOperatorStack.size() - 1; |
| 158 | InfixCalculatorTok StackOp = InfixOperatorStack[Idx]; |
| 159 | if (OpPrecedence[Op] > OpPrecedence[StackOp] || StackOp == IC_LPAREN) { |
| 160 | InfixOperatorStack.push_back(Op); |
| 161 | return; |
| 162 | } |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 163 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 164 | // The operator on the top of the stack has higher precedence than the |
| 165 | // new operator. |
| 166 | unsigned ParenCount = 0; |
Kirill Bobyrev | 6afbaf0 | 2017-01-18 16:34:25 +0000 | [diff] [blame] | 167 | while (1) { |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 168 | // Nothing to process. |
| 169 | if (InfixOperatorStack.empty()) |
| 170 | break; |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 171 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 172 | Idx = InfixOperatorStack.size() - 1; |
| 173 | StackOp = InfixOperatorStack[Idx]; |
| 174 | if (!(OpPrecedence[StackOp] >= OpPrecedence[Op] || ParenCount)) |
| 175 | break; |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 176 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 177 | // If we have an even parentheses count and we see a left parentheses, |
| 178 | // then stop processing. |
| 179 | if (!ParenCount && StackOp == IC_LPAREN) |
| 180 | break; |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 181 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 182 | if (StackOp == IC_RPAREN) { |
| 183 | ++ParenCount; |
Jakub Staszak | 9c34922 | 2013-08-08 15:48:46 +0000 | [diff] [blame] | 184 | InfixOperatorStack.pop_back(); |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 185 | } else if (StackOp == IC_LPAREN) { |
| 186 | --ParenCount; |
Jakub Staszak | 9c34922 | 2013-08-08 15:48:46 +0000 | [diff] [blame] | 187 | InfixOperatorStack.pop_back(); |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 188 | } else { |
Jakub Staszak | 9c34922 | 2013-08-08 15:48:46 +0000 | [diff] [blame] | 189 | InfixOperatorStack.pop_back(); |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 190 | PostfixStack.push_back(std::make_pair(StackOp, 0)); |
| 191 | } |
| 192 | } |
| 193 | // Push the new operator. |
| 194 | InfixOperatorStack.push_back(Op); |
| 195 | } |
Marina Yatsina | a0e0241 | 2015-08-10 11:33:10 +0000 | [diff] [blame] | 196 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 197 | int64_t execute() { |
| 198 | // Push any remaining operators onto the postfix stack. |
| 199 | while (!InfixOperatorStack.empty()) { |
| 200 | InfixCalculatorTok StackOp = InfixOperatorStack.pop_back_val(); |
| 201 | if (StackOp != IC_LPAREN && StackOp != IC_RPAREN) |
| 202 | PostfixStack.push_back(std::make_pair(StackOp, 0)); |
| 203 | } |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 204 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 205 | if (PostfixStack.empty()) |
| 206 | return 0; |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 207 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 208 | SmallVector<ICToken, 16> OperandStack; |
| 209 | for (unsigned i = 0, e = PostfixStack.size(); i != e; ++i) { |
| 210 | ICToken Op = PostfixStack[i]; |
| 211 | if (Op.first == IC_IMM || Op.first == IC_REGISTER) { |
| 212 | OperandStack.push_back(Op); |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 213 | } else if (isUnaryOperator(Op.first)) { |
| 214 | assert (OperandStack.size() > 0 && "Too few operands."); |
| 215 | ICToken Operand = OperandStack.pop_back_val(); |
| 216 | assert (Operand.first == IC_IMM && |
| 217 | "Unary operation with a register!"); |
| 218 | switch (Op.first) { |
| 219 | default: |
| 220 | report_fatal_error("Unexpected operator!"); |
| 221 | break; |
| 222 | case IC_NEG: |
| 223 | OperandStack.push_back(std::make_pair(IC_IMM, -Operand.second)); |
| 224 | break; |
| 225 | case IC_NOT: |
| 226 | OperandStack.push_back(std::make_pair(IC_IMM, ~Operand.second)); |
| 227 | break; |
| 228 | } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 229 | } else { |
| 230 | assert (OperandStack.size() > 1 && "Too few operands."); |
| 231 | int64_t Val; |
| 232 | ICToken Op2 = OperandStack.pop_back_val(); |
| 233 | ICToken Op1 = OperandStack.pop_back_val(); |
| 234 | switch (Op.first) { |
| 235 | default: |
| 236 | report_fatal_error("Unexpected operator!"); |
| 237 | break; |
| 238 | case IC_PLUS: |
| 239 | Val = Op1.second + Op2.second; |
| 240 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 241 | break; |
| 242 | case IC_MINUS: |
| 243 | Val = Op1.second - Op2.second; |
| 244 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 245 | break; |
| 246 | case IC_MULTIPLY: |
| 247 | assert (Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 248 | "Multiply operation with an immediate and a register!"); |
| 249 | Val = Op1.second * Op2.second; |
| 250 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 251 | break; |
| 252 | case IC_DIVIDE: |
| 253 | assert (Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 254 | "Divide operation with an immediate and a register!"); |
| 255 | assert (Op2.second != 0 && "Division by zero!"); |
| 256 | Val = Op1.second / Op2.second; |
| 257 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 258 | break; |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 259 | case IC_MOD: |
| 260 | assert (Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 261 | "Modulo operation with an immediate and a register!"); |
| 262 | Val = Op1.second % Op2.second; |
| 263 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 264 | break; |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 265 | case IC_OR: |
| 266 | assert (Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 267 | "Or operation with an immediate and a register!"); |
| 268 | Val = Op1.second | Op2.second; |
| 269 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 270 | break; |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 271 | case IC_XOR: |
| 272 | assert(Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 273 | "Xor operation with an immediate and a register!"); |
| 274 | Val = Op1.second ^ Op2.second; |
| 275 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 276 | break; |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 277 | case IC_AND: |
| 278 | assert (Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 279 | "And operation with an immediate and a register!"); |
| 280 | Val = Op1.second & Op2.second; |
| 281 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 282 | break; |
Kevin Enderby | d6b1071 | 2014-02-06 01:21:15 +0000 | [diff] [blame] | 283 | case IC_LSHIFT: |
| 284 | assert (Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 285 | "Left shift operation with an immediate and a register!"); |
| 286 | Val = Op1.second << Op2.second; |
| 287 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 288 | break; |
| 289 | case IC_RSHIFT: |
| 290 | assert (Op1.first == IC_IMM && Op2.first == IC_IMM && |
| 291 | "Right shift operation with an immediate and a register!"); |
| 292 | Val = Op1.second >> Op2.second; |
| 293 | OperandStack.push_back(std::make_pair(IC_IMM, Val)); |
| 294 | break; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 295 | } |
| 296 | } |
| 297 | } |
| 298 | assert (OperandStack.size() == 1 && "Expected a single result."); |
| 299 | return OperandStack.pop_back_val().second; |
| 300 | } |
| 301 | }; |
| 302 | |
| 303 | enum IntelExprState { |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 304 | IES_INIT, |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 305 | IES_OR, |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 306 | IES_XOR, |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 307 | IES_AND, |
Kevin Enderby | d6b1071 | 2014-02-06 01:21:15 +0000 | [diff] [blame] | 308 | IES_LSHIFT, |
| 309 | IES_RSHIFT, |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 310 | IES_PLUS, |
| 311 | IES_MINUS, |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 312 | IES_NOT, |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 313 | IES_MULTIPLY, |
| 314 | IES_DIVIDE, |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 315 | IES_MOD, |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 316 | IES_LBRAC, |
| 317 | IES_RBRAC, |
| 318 | IES_LPAREN, |
| 319 | IES_RPAREN, |
| 320 | IES_REGISTER, |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 321 | IES_INTEGER, |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 322 | IES_IDENTIFIER, |
| 323 | IES_ERROR |
| 324 | }; |
| 325 | |
| 326 | class IntelExprStateMachine { |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 327 | IntelExprState State, PrevState; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 328 | unsigned BaseReg, IndexReg, TmpReg, Scale; |
Chad Rosier | bfb7099 | 2013-04-17 00:11:46 +0000 | [diff] [blame] | 329 | int64_t Imm; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 330 | const MCExpr *Sym; |
| 331 | StringRef SymName; |
| 332 | InfixCalculator IC; |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 333 | InlineAsmIdentifierInfo Info; |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 334 | short BracCount; |
| 335 | bool MemExpr; |
NAKAMURA Takumi | a9cb538 | 2015-09-22 11:14:39 +0000 | [diff] [blame] | 336 | |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 337 | public: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 338 | IntelExprStateMachine() |
| 339 | : State(IES_INIT), PrevState(IES_ERROR), BaseReg(0), IndexReg(0), |
| 340 | TmpReg(0), Scale(1), Imm(0), Sym(nullptr), BracCount(0), |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 341 | MemExpr(false) {} |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 342 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 343 | void addImm(int64_t imm) { Imm += imm; } |
| 344 | short getBracCount() { return BracCount; } |
| 345 | bool isMemExpr() { return MemExpr; } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 346 | unsigned getBaseReg() { return BaseReg; } |
| 347 | unsigned getIndexReg() { return IndexReg; } |
| 348 | unsigned getScale() { return Scale; } |
| 349 | const MCExpr *getSym() { return Sym; } |
| 350 | StringRef getSymName() { return SymName; } |
Chad Rosier | bfb7099 | 2013-04-17 00:11:46 +0000 | [diff] [blame] | 351 | int64_t getImm() { return Imm + IC.execute(); } |
Chad Rosier | edb1dc8 | 2013-05-09 23:48:53 +0000 | [diff] [blame] | 352 | bool isValidEndState() { |
| 353 | return State == IES_RBRAC || State == IES_INTEGER; |
| 354 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 355 | bool hadError() { return State == IES_ERROR; } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 356 | InlineAsmIdentifierInfo &getIdentifierInfo() { return Info; } |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 357 | |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 358 | void onOr() { |
| 359 | IntelExprState CurrState = State; |
| 360 | switch (State) { |
| 361 | default: |
| 362 | State = IES_ERROR; |
| 363 | break; |
| 364 | case IES_INTEGER: |
| 365 | case IES_RPAREN: |
| 366 | case IES_REGISTER: |
| 367 | State = IES_OR; |
| 368 | IC.pushOperator(IC_OR); |
| 369 | break; |
| 370 | } |
| 371 | PrevState = CurrState; |
| 372 | } |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 373 | void onXor() { |
| 374 | IntelExprState CurrState = State; |
| 375 | switch (State) { |
| 376 | default: |
| 377 | State = IES_ERROR; |
| 378 | break; |
| 379 | case IES_INTEGER: |
| 380 | case IES_RPAREN: |
| 381 | case IES_REGISTER: |
| 382 | State = IES_XOR; |
| 383 | IC.pushOperator(IC_XOR); |
| 384 | break; |
| 385 | } |
| 386 | PrevState = CurrState; |
| 387 | } |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 388 | void onAnd() { |
| 389 | IntelExprState CurrState = State; |
| 390 | switch (State) { |
| 391 | default: |
| 392 | State = IES_ERROR; |
| 393 | break; |
| 394 | case IES_INTEGER: |
| 395 | case IES_RPAREN: |
| 396 | case IES_REGISTER: |
| 397 | State = IES_AND; |
| 398 | IC.pushOperator(IC_AND); |
| 399 | break; |
| 400 | } |
| 401 | PrevState = CurrState; |
| 402 | } |
Kevin Enderby | d6b1071 | 2014-02-06 01:21:15 +0000 | [diff] [blame] | 403 | void onLShift() { |
| 404 | IntelExprState CurrState = State; |
| 405 | switch (State) { |
| 406 | default: |
| 407 | State = IES_ERROR; |
| 408 | break; |
| 409 | case IES_INTEGER: |
| 410 | case IES_RPAREN: |
| 411 | case IES_REGISTER: |
| 412 | State = IES_LSHIFT; |
| 413 | IC.pushOperator(IC_LSHIFT); |
| 414 | break; |
| 415 | } |
| 416 | PrevState = CurrState; |
| 417 | } |
| 418 | void onRShift() { |
| 419 | IntelExprState CurrState = State; |
| 420 | switch (State) { |
| 421 | default: |
| 422 | State = IES_ERROR; |
| 423 | break; |
| 424 | case IES_INTEGER: |
| 425 | case IES_RPAREN: |
| 426 | case IES_REGISTER: |
| 427 | State = IES_RSHIFT; |
| 428 | IC.pushOperator(IC_RSHIFT); |
| 429 | break; |
| 430 | } |
| 431 | PrevState = CurrState; |
| 432 | } |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 433 | bool onPlus(StringRef &ErrMsg) { |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 434 | IntelExprState CurrState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 435 | switch (State) { |
| 436 | default: |
| 437 | State = IES_ERROR; |
| 438 | break; |
| 439 | case IES_INTEGER: |
| 440 | case IES_RPAREN: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 441 | case IES_REGISTER: |
| 442 | State = IES_PLUS; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 443 | IC.pushOperator(IC_PLUS); |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 444 | if (CurrState == IES_REGISTER && PrevState != IES_MULTIPLY) { |
| 445 | // If we already have a BaseReg, then assume this is the IndexReg with |
| 446 | // a scale of 1. |
| 447 | if (!BaseReg) { |
| 448 | BaseReg = TmpReg; |
| 449 | } else { |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 450 | if (IndexReg) { |
| 451 | ErrMsg = "BaseReg/IndexReg already set!"; |
| 452 | return true; |
| 453 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 454 | IndexReg = TmpReg; |
| 455 | Scale = 1; |
| 456 | } |
| 457 | } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 458 | break; |
| 459 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 460 | PrevState = CurrState; |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 461 | return false; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 462 | } |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 463 | bool onMinus(StringRef &ErrMsg) { |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 464 | IntelExprState CurrState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 465 | switch (State) { |
| 466 | default: |
| 467 | State = IES_ERROR; |
| 468 | break; |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 469 | case IES_OR: |
| 470 | case IES_XOR: |
| 471 | case IES_AND: |
| 472 | case IES_LSHIFT: |
| 473 | case IES_RSHIFT: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 474 | case IES_PLUS: |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 475 | case IES_NOT: |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 476 | case IES_MULTIPLY: |
| 477 | case IES_DIVIDE: |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 478 | case IES_MOD: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 479 | case IES_LPAREN: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 480 | case IES_RPAREN: |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 481 | case IES_LBRAC: |
| 482 | case IES_RBRAC: |
| 483 | case IES_INTEGER: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 484 | case IES_REGISTER: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 485 | case IES_INIT: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 486 | State = IES_MINUS; |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 487 | // push minus operator if it is not a negate operator |
| 488 | if (CurrState == IES_REGISTER || CurrState == IES_RPAREN || |
| 489 | CurrState == IES_INTEGER || CurrState == IES_RBRAC) |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 490 | IC.pushOperator(IC_MINUS); |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 491 | else if (PrevState == IES_REGISTER && CurrState == IES_MULTIPLY) { |
| 492 | // We have negate operator for Scale: it's illegal |
| 493 | ErrMsg = "Scale can't be negative"; |
| 494 | return true; |
| 495 | } else |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 496 | IC.pushOperator(IC_NEG); |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 497 | if (CurrState == IES_REGISTER && PrevState != IES_MULTIPLY) { |
| 498 | // If we already have a BaseReg, then assume this is the IndexReg with |
| 499 | // a scale of 1. |
| 500 | if (!BaseReg) { |
| 501 | BaseReg = TmpReg; |
| 502 | } else { |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 503 | if (IndexReg) { |
| 504 | ErrMsg = "BaseReg/IndexReg already set!"; |
| 505 | return true; |
| 506 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 507 | IndexReg = TmpReg; |
| 508 | Scale = 1; |
| 509 | } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 510 | } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 511 | break; |
| 512 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 513 | PrevState = CurrState; |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 514 | return false; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 515 | } |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 516 | void onNot() { |
| 517 | IntelExprState CurrState = State; |
| 518 | switch (State) { |
| 519 | default: |
| 520 | State = IES_ERROR; |
| 521 | break; |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 522 | case IES_OR: |
| 523 | case IES_XOR: |
| 524 | case IES_AND: |
| 525 | case IES_LSHIFT: |
| 526 | case IES_RSHIFT: |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 527 | case IES_PLUS: |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 528 | case IES_MINUS: |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 529 | case IES_NOT: |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 530 | case IES_MULTIPLY: |
| 531 | case IES_DIVIDE: |
| 532 | case IES_MOD: |
| 533 | case IES_LPAREN: |
| 534 | case IES_LBRAC: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 535 | case IES_INIT: |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 536 | State = IES_NOT; |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 537 | IC.pushOperator(IC_NOT); |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 538 | break; |
| 539 | } |
| 540 | PrevState = CurrState; |
| 541 | } |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 542 | |
| 543 | bool onRegister(unsigned Reg, StringRef &ErrMsg) { |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 544 | IntelExprState CurrState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 545 | switch (State) { |
| 546 | default: |
| 547 | State = IES_ERROR; |
| 548 | break; |
| 549 | case IES_PLUS: |
| 550 | case IES_LPAREN: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 551 | case IES_LBRAC: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 552 | State = IES_REGISTER; |
| 553 | TmpReg = Reg; |
| 554 | IC.pushOperand(IC_REGISTER); |
| 555 | break; |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 556 | case IES_MULTIPLY: |
| 557 | // Index Register - Scale * Register |
| 558 | if (PrevState == IES_INTEGER) { |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 559 | if (IndexReg) { |
| 560 | ErrMsg = "BaseReg/IndexReg already set!"; |
| 561 | return true; |
| 562 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 563 | State = IES_REGISTER; |
| 564 | IndexReg = Reg; |
| 565 | // Get the scale and replace the 'Scale * Register' with '0'. |
| 566 | Scale = IC.popOperand(); |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 567 | if (checkScale(Scale, ErrMsg)) |
| 568 | return true; |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 569 | IC.pushOperand(IC_IMM); |
| 570 | IC.popOperator(); |
| 571 | } else { |
| 572 | State = IES_ERROR; |
| 573 | } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 574 | break; |
| 575 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 576 | PrevState = CurrState; |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 577 | return false; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 578 | } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 579 | bool onIdentifierExpr(const MCExpr *SymRef, StringRef SymRefName, |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 580 | const InlineAsmIdentifierInfo &IDInfo, |
| 581 | bool ParsingInlineAsm, StringRef &ErrMsg) { |
| 582 | // InlineAsm: Treat an enum value as an integer |
| 583 | if (ParsingInlineAsm) |
| 584 | if (IDInfo.isKind(InlineAsmIdentifierInfo::IK_EnumVal)) |
| 585 | return onInteger(IDInfo.Enum.EnumVal, ErrMsg); |
| 586 | // Treat a symbolic constant like an integer |
| 587 | if (auto *CE = dyn_cast<MCConstantExpr>(SymRef)) |
| 588 | return onInteger(CE->getValue(), ErrMsg); |
Chad Rosier | db00399 | 2013-04-18 16:28:19 +0000 | [diff] [blame] | 589 | PrevState = State; |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 590 | bool HasSymbol = Sym != nullptr; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 591 | switch (State) { |
| 592 | default: |
| 593 | State = IES_ERROR; |
| 594 | break; |
| 595 | case IES_PLUS: |
| 596 | case IES_MINUS: |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 597 | case IES_NOT: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 598 | case IES_INIT: |
| 599 | case IES_LBRAC: |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 600 | MemExpr = true; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 601 | State = IES_INTEGER; |
| 602 | Sym = SymRef; |
| 603 | SymName = SymRefName; |
| 604 | IC.pushOperand(IC_IMM); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 605 | if (ParsingInlineAsm) |
| 606 | Info = IDInfo; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 607 | break; |
| 608 | } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 609 | if (HasSymbol) |
| 610 | ErrMsg = "cannot use more than one symbol in memory operand"; |
| 611 | return HasSymbol; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 612 | } |
Kevin Enderby | 9d11702 | 2014-01-23 21:52:41 +0000 | [diff] [blame] | 613 | bool onInteger(int64_t TmpInt, StringRef &ErrMsg) { |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 614 | IntelExprState CurrState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 615 | switch (State) { |
| 616 | default: |
| 617 | State = IES_ERROR; |
| 618 | break; |
| 619 | case IES_PLUS: |
| 620 | case IES_MINUS: |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 621 | case IES_NOT: |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 622 | case IES_OR: |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 623 | case IES_XOR: |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 624 | case IES_AND: |
Kevin Enderby | d6b1071 | 2014-02-06 01:21:15 +0000 | [diff] [blame] | 625 | case IES_LSHIFT: |
| 626 | case IES_RSHIFT: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 627 | case IES_DIVIDE: |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 628 | case IES_MOD: |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 629 | case IES_MULTIPLY: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 630 | case IES_LPAREN: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 631 | case IES_INIT: |
| 632 | case IES_LBRAC: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 633 | State = IES_INTEGER; |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 634 | if (PrevState == IES_REGISTER && CurrState == IES_MULTIPLY) { |
| 635 | // Index Register - Register * Scale |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 636 | if (IndexReg) { |
| 637 | ErrMsg = "BaseReg/IndexReg already set!"; |
Kevin Enderby | 9d11702 | 2014-01-23 21:52:41 +0000 | [diff] [blame] | 638 | return true; |
| 639 | } |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 640 | IndexReg = TmpReg; |
| 641 | Scale = TmpInt; |
| 642 | if (checkScale(Scale, ErrMsg)) |
| 643 | return true; |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 644 | // Get the scale and replace the 'Register * Scale' with '0'. |
| 645 | IC.popOperator(); |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 646 | } else { |
| 647 | IC.pushOperand(IC_IMM, TmpInt); |
| 648 | } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 649 | break; |
| 650 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 651 | PrevState = CurrState; |
Kevin Enderby | 9d11702 | 2014-01-23 21:52:41 +0000 | [diff] [blame] | 652 | return false; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 653 | } |
| 654 | void onStar() { |
Chad Rosier | db00399 | 2013-04-18 16:28:19 +0000 | [diff] [blame] | 655 | PrevState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 656 | switch (State) { |
| 657 | default: |
| 658 | State = IES_ERROR; |
| 659 | break; |
| 660 | case IES_INTEGER: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 661 | case IES_REGISTER: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 662 | case IES_RPAREN: |
| 663 | State = IES_MULTIPLY; |
| 664 | IC.pushOperator(IC_MULTIPLY); |
| 665 | break; |
| 666 | } |
| 667 | } |
| 668 | void onDivide() { |
Chad Rosier | db00399 | 2013-04-18 16:28:19 +0000 | [diff] [blame] | 669 | PrevState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 670 | switch (State) { |
| 671 | default: |
| 672 | State = IES_ERROR; |
| 673 | break; |
| 674 | case IES_INTEGER: |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 675 | case IES_RPAREN: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 676 | State = IES_DIVIDE; |
| 677 | IC.pushOperator(IC_DIVIDE); |
| 678 | break; |
| 679 | } |
| 680 | } |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 681 | void onMod() { |
| 682 | PrevState = State; |
| 683 | switch (State) { |
| 684 | default: |
| 685 | State = IES_ERROR; |
| 686 | break; |
| 687 | case IES_INTEGER: |
| 688 | case IES_RPAREN: |
| 689 | State = IES_MOD; |
| 690 | IC.pushOperator(IC_MOD); |
| 691 | break; |
| 692 | } |
| 693 | } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 694 | bool onLBrac() { |
| 695 | if (BracCount) |
| 696 | return true; |
Chad Rosier | db00399 | 2013-04-18 16:28:19 +0000 | [diff] [blame] | 697 | PrevState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 698 | switch (State) { |
| 699 | default: |
| 700 | State = IES_ERROR; |
| 701 | break; |
| 702 | case IES_RBRAC: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 703 | case IES_INTEGER: |
| 704 | case IES_RPAREN: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 705 | State = IES_PLUS; |
| 706 | IC.pushOperator(IC_PLUS); |
| 707 | break; |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 708 | case IES_INIT: |
| 709 | assert(!BracCount && "BracCount should be zero on parsing's start"); |
| 710 | State = IES_LBRAC; |
| 711 | break; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 712 | } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 713 | MemExpr = true; |
| 714 | BracCount++; |
| 715 | return false; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 716 | } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 717 | bool onRBrac() { |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 718 | IntelExprState CurrState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 719 | switch (State) { |
| 720 | default: |
| 721 | State = IES_ERROR; |
| 722 | break; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 723 | case IES_INTEGER: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 724 | case IES_REGISTER: |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 725 | case IES_RPAREN: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 726 | if (BracCount-- != 1) |
| 727 | return true; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 728 | State = IES_RBRAC; |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 729 | if (CurrState == IES_REGISTER && PrevState != IES_MULTIPLY) { |
| 730 | // If we already have a BaseReg, then assume this is the IndexReg with |
| 731 | // a scale of 1. |
| 732 | if (!BaseReg) { |
| 733 | BaseReg = TmpReg; |
| 734 | } else { |
| 735 | assert (!IndexReg && "BaseReg/IndexReg already set!"); |
| 736 | IndexReg = TmpReg; |
| 737 | Scale = 1; |
| 738 | } |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 739 | } |
| 740 | break; |
| 741 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 742 | PrevState = CurrState; |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 743 | return false; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 744 | } |
| 745 | void onLParen() { |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 746 | IntelExprState CurrState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 747 | switch (State) { |
| 748 | default: |
| 749 | State = IES_ERROR; |
| 750 | break; |
| 751 | case IES_PLUS: |
| 752 | case IES_MINUS: |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 753 | case IES_NOT: |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 754 | case IES_OR: |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 755 | case IES_XOR: |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 756 | case IES_AND: |
Kevin Enderby | d6b1071 | 2014-02-06 01:21:15 +0000 | [diff] [blame] | 757 | case IES_LSHIFT: |
| 758 | case IES_RSHIFT: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 759 | case IES_MULTIPLY: |
| 760 | case IES_DIVIDE: |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 761 | case IES_MOD: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 762 | case IES_LPAREN: |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 763 | case IES_INIT: |
| 764 | case IES_LBRAC: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 765 | State = IES_LPAREN; |
| 766 | IC.pushOperator(IC_LPAREN); |
| 767 | break; |
| 768 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 769 | PrevState = CurrState; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 770 | } |
| 771 | void onRParen() { |
Chad Rosier | db00399 | 2013-04-18 16:28:19 +0000 | [diff] [blame] | 772 | PrevState = State; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 773 | switch (State) { |
| 774 | default: |
| 775 | State = IES_ERROR; |
| 776 | break; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 777 | case IES_INTEGER: |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 778 | case IES_REGISTER: |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 779 | case IES_RPAREN: |
| 780 | State = IES_RPAREN; |
| 781 | IC.pushOperator(IC_RPAREN); |
| 782 | break; |
| 783 | } |
| 784 | } |
| 785 | }; |
| 786 | |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 787 | bool Error(SMLoc L, const Twine &Msg, SMRange Range = None, |
Chad Rosier | 4453e84 | 2012-10-12 23:09:25 +0000 | [diff] [blame] | 788 | bool MatchingInlineAsm = false) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 789 | MCAsmParser &Parser = getParser(); |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 790 | if (MatchingInlineAsm) { |
| 791 | if (!getLexer().isAtStartOfStatement()) |
| 792 | Parser.eatToEndOfStatement(); |
| 793 | return false; |
| 794 | } |
| 795 | return Parser.Error(L, Msg, Range); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 796 | } |
| 797 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 798 | std::nullptr_t ErrorOperand(SMLoc Loc, StringRef Msg) { |
Devang Patel | 41b9dde | 2012-01-17 18:00:18 +0000 | [diff] [blame] | 799 | Error(Loc, Msg); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 800 | return nullptr; |
Devang Patel | 41b9dde | 2012-01-17 18:00:18 +0000 | [diff] [blame] | 801 | } |
| 802 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 803 | std::unique_ptr<X86Operand> DefaultMemSIOperand(SMLoc Loc); |
| 804 | std::unique_ptr<X86Operand> DefaultMemDIOperand(SMLoc Loc); |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 805 | bool IsSIReg(unsigned Reg); |
| 806 | unsigned GetSIDIForRegClass(unsigned RegClassID, unsigned Reg, bool IsSIReg); |
| 807 | void |
| 808 | AddDefaultSrcDestOperands(OperandVector &Operands, |
| 809 | std::unique_ptr<llvm::MCParsedAsmOperand> &&Src, |
| 810 | std::unique_ptr<llvm::MCParsedAsmOperand> &&Dst); |
| 811 | bool VerifyAndAdjustOperands(OperandVector &OrigOperands, |
| 812 | OperandVector &FinalOperands); |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 813 | std::unique_ptr<X86Operand> ParseOperand(); |
| 814 | std::unique_ptr<X86Operand> ParseATTOperand(); |
| 815 | std::unique_ptr<X86Operand> ParseIntelOperand(); |
| 816 | std::unique_ptr<X86Operand> ParseIntelOffsetOfOperator(); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 817 | bool ParseIntelDotOperator(IntelExprStateMachine &SM, SMLoc &End); |
| 818 | unsigned IdentifyIntelInlineAsmOperator(StringRef Name); |
| 819 | unsigned ParseIntelInlineAsmOperator(unsigned OpKind); |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 820 | std::unique_ptr<X86Operand> ParseRoundingModeOp(SMLoc Start, SMLoc End); |
Coby Tayree | 2cb497a | 2017-04-04 14:43:23 +0000 | [diff] [blame] | 821 | bool ParseIntelNamedOperator(StringRef Name, IntelExprStateMachine &SM); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 822 | void RewriteIntelExpression(IntelExprStateMachine &SM, SMLoc Start, |
| 823 | SMLoc End); |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 824 | bool ParseIntelExpression(IntelExprStateMachine &SM, SMLoc &End); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 825 | bool ParseIntelInlineAsmIdentifier(const MCExpr *&Val, StringRef &Identifier, |
| 826 | InlineAsmIdentifierInfo &Info, |
| 827 | bool IsUnevaluatedOperand, SMLoc &End); |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 828 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 829 | std::unique_ptr<X86Operand> ParseMemOperand(unsigned SegReg, SMLoc StartLoc); |
Kevin Enderby | ce4bec8 | 2009-09-10 20:51:44 +0000 | [diff] [blame] | 830 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 831 | bool ParseIntelMemoryOperandSize(unsigned &Size); |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 832 | std::unique_ptr<X86Operand> |
| 833 | CreateMemForInlineAsm(unsigned SegReg, const MCExpr *Disp, unsigned BaseReg, |
| 834 | unsigned IndexReg, unsigned Scale, SMLoc Start, |
| 835 | SMLoc End, unsigned Size, StringRef Identifier, |
Coby Tayree | ef66b3b | 2017-09-10 12:21:24 +0000 | [diff] [blame] | 836 | const InlineAsmIdentifierInfo &Info); |
Chad Rosier | 7ca135b | 2013-03-19 21:11:56 +0000 | [diff] [blame] | 837 | |
Michael Zuckerman | 02ecd43 | 2015-12-13 17:07:23 +0000 | [diff] [blame] | 838 | bool parseDirectiveEven(SMLoc L); |
Kevin Enderby | ce4bec8 | 2009-09-10 20:51:44 +0000 | [diff] [blame] | 839 | bool ParseDirectiveWord(unsigned Size, SMLoc L); |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 840 | bool ParseDirectiveCode(StringRef IDVal, SMLoc L); |
Kevin Enderby | ce4bec8 | 2009-09-10 20:51:44 +0000 | [diff] [blame] | 841 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 842 | bool processInstruction(MCInst &Inst, const OperandVector &Ops); |
Devang Patel | de47cce | 2012-01-18 22:42:29 +0000 | [diff] [blame] | 843 | |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 844 | /// Wrapper around MCStreamer::EmitInstruction(). Possibly adds |
| 845 | /// instrumentation around Inst. |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 846 | void EmitInstruction(MCInst &Inst, OperandVector &Operands, MCStreamer &Out); |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 847 | |
Chad Rosier | 4996355 | 2012-10-13 00:26:04 +0000 | [diff] [blame] | 848 | bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode, |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 849 | OperandVector &Operands, MCStreamer &Out, |
Tim Northover | 26bb14e | 2014-08-18 11:49:42 +0000 | [diff] [blame] | 850 | uint64_t &ErrorInfo, |
Craig Topper | 39012cc | 2014-03-09 18:03:14 +0000 | [diff] [blame] | 851 | bool MatchingInlineAsm) override; |
Chad Rosier | 9cb988f | 2012-08-09 22:04:55 +0000 | [diff] [blame] | 852 | |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 853 | void MatchFPUWaitAlias(SMLoc IDLoc, X86Operand &Op, OperandVector &Operands, |
| 854 | MCStreamer &Out, bool MatchingInlineAsm); |
| 855 | |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 856 | bool ErrorMissingFeature(SMLoc IDLoc, uint64_t ErrorInfo, |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 857 | bool MatchingInlineAsm); |
| 858 | |
| 859 | bool MatchAndEmitATTInstruction(SMLoc IDLoc, unsigned &Opcode, |
| 860 | OperandVector &Operands, MCStreamer &Out, |
| 861 | uint64_t &ErrorInfo, |
| 862 | bool MatchingInlineAsm); |
| 863 | |
| 864 | bool MatchAndEmitIntelInstruction(SMLoc IDLoc, unsigned &Opcode, |
| 865 | OperandVector &Operands, MCStreamer &Out, |
| 866 | uint64_t &ErrorInfo, |
| 867 | bool MatchingInlineAsm); |
| 868 | |
Craig Topper | fd38cbe | 2014-08-30 16:48:34 +0000 | [diff] [blame] | 869 | bool OmitRegisterFromClobberLists(unsigned RegNo) override; |
Nico Weber | 42f79db | 2014-07-17 20:24:55 +0000 | [diff] [blame] | 870 | |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 871 | /// Parses AVX512 specific operand primitives: masked registers ({%k<NUM>}, {z}) |
| 872 | /// and memory broadcasting ({1to<NUM>}) primitives, updating Operands vector if required. |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 873 | /// return false if no parsing errors occurred, true otherwise. |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 874 | bool HandleAVX512Operand(OperandVector &Operands, |
| 875 | const MCParsedAsmOperand &Op); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 876 | |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 877 | bool ParseZ(std::unique_ptr<X86Operand> &Z, const SMLoc &StartLoc); |
| 878 | |
Evan Cheng | c5e6d2f | 2011-07-11 03:57:24 +0000 | [diff] [blame] | 879 | bool is64BitMode() const { |
Evan Cheng | 4d1ca96 | 2011-07-08 01:53:10 +0000 | [diff] [blame] | 880 | // FIXME: Can tablegen auto-generate this? |
Akira Hatanaka | bd9fc28 | 2015-11-14 05:20:05 +0000 | [diff] [blame] | 881 | return getSTI().getFeatureBits()[X86::Mode64Bit]; |
Evan Cheng | 4d1ca96 | 2011-07-08 01:53:10 +0000 | [diff] [blame] | 882 | } |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 883 | bool is32BitMode() const { |
| 884 | // FIXME: Can tablegen auto-generate this? |
Akira Hatanaka | bd9fc28 | 2015-11-14 05:20:05 +0000 | [diff] [blame] | 885 | return getSTI().getFeatureBits()[X86::Mode32Bit]; |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 886 | } |
| 887 | bool is16BitMode() const { |
| 888 | // FIXME: Can tablegen auto-generate this? |
Akira Hatanaka | bd9fc28 | 2015-11-14 05:20:05 +0000 | [diff] [blame] | 889 | return getSTI().getFeatureBits()[X86::Mode16Bit]; |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 890 | } |
Michael Kuperstein | db0712f | 2015-05-26 10:47:10 +0000 | [diff] [blame] | 891 | void SwitchMode(unsigned mode) { |
Akira Hatanaka | b11ef08 | 2015-11-14 06:35:56 +0000 | [diff] [blame] | 892 | MCSubtargetInfo &STI = copySTI(); |
Michael Kuperstein | db0712f | 2015-05-26 10:47:10 +0000 | [diff] [blame] | 893 | FeatureBitset AllModes({X86::Mode64Bit, X86::Mode32Bit, X86::Mode16Bit}); |
| 894 | FeatureBitset OldMode = STI.getFeatureBits() & AllModes; |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 895 | unsigned FB = ComputeAvailableFeatures( |
Michael Kuperstein | db0712f | 2015-05-26 10:47:10 +0000 | [diff] [blame] | 896 | STI.ToggleFeature(OldMode.flip(mode))); |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 897 | setAvailableFeatures(FB); |
NAKAMURA Takumi | a9cb538 | 2015-09-22 11:14:39 +0000 | [diff] [blame] | 898 | |
Michael Kuperstein | db0712f | 2015-05-26 10:47:10 +0000 | [diff] [blame] | 899 | assert(FeatureBitset({mode}) == (STI.getFeatureBits() & AllModes)); |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 900 | } |
Evan Cheng | 4d1ca96 | 2011-07-08 01:53:10 +0000 | [diff] [blame] | 901 | |
Reid Kleckner | 5b37c18 | 2014-08-01 20:21:24 +0000 | [diff] [blame] | 902 | unsigned getPointerWidth() { |
| 903 | if (is16BitMode()) return 16; |
| 904 | if (is32BitMode()) return 32; |
| 905 | if (is64BitMode()) return 64; |
| 906 | llvm_unreachable("invalid mode"); |
| 907 | } |
| 908 | |
Chad Rosier | c2f055d | 2013-04-18 16:13:18 +0000 | [diff] [blame] | 909 | bool isParsingIntelSyntax() { |
| 910 | return getParser().getAssemblerDialect(); |
| 911 | } |
| 912 | |
Daniel Dunbar | eefe861 | 2010-07-19 05:44:09 +0000 | [diff] [blame] | 913 | /// @name Auto-generated Matcher Functions |
| 914 | /// { |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 915 | |
Chris Lattner | 3e4582a | 2010-09-06 19:11:01 +0000 | [diff] [blame] | 916 | #define GET_ASSEMBLER_HEADER |
| 917 | #include "X86GenAsmMatcher.inc" |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 918 | |
Daniel Dunbar | 0033199 | 2009-07-29 00:02:19 +0000 | [diff] [blame] | 919 | /// } |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 920 | |
| 921 | public: |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 922 | |
Akira Hatanaka | b11ef08 | 2015-11-14 06:35:56 +0000 | [diff] [blame] | 923 | X86AsmParser(const MCSubtargetInfo &sti, MCAsmParser &Parser, |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 924 | const MCInstrInfo &mii, const MCTargetOptions &Options) |
Oliver Stannard | 4191b9e | 2017-10-11 09:17:43 +0000 | [diff] [blame^] | 925 | : MCTargetAsmParser(Options, sti, mii), InstInfo(nullptr), |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 926 | Code16GCC(false) { |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 927 | |
Daniel Dunbar | eefe861 | 2010-07-19 05:44:09 +0000 | [diff] [blame] | 928 | // Initialize the set of available features. |
Akira Hatanaka | bd9fc28 | 2015-11-14 05:20:05 +0000 | [diff] [blame] | 929 | setAvailableFeatures(ComputeAvailableFeatures(getSTI().getFeatureBits())); |
Evgeniy Stepanov | 0a951b7 | 2014-04-23 11:16:03 +0000 | [diff] [blame] | 930 | Instrumentation.reset( |
| 931 | CreateX86AsmInstrumentation(Options, Parser.getContext(), STI)); |
Daniel Dunbar | eefe861 | 2010-07-19 05:44:09 +0000 | [diff] [blame] | 932 | } |
Evgeniy Stepanov | 0a951b7 | 2014-04-23 11:16:03 +0000 | [diff] [blame] | 933 | |
Craig Topper | 39012cc | 2014-03-09 18:03:14 +0000 | [diff] [blame] | 934 | bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) override; |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 935 | |
Yuri Gorshenin | 3939dec | 2014-09-10 09:45:49 +0000 | [diff] [blame] | 936 | void SetFrameRegister(unsigned RegNo) override; |
| 937 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 938 | bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name, |
| 939 | SMLoc NameLoc, OperandVector &Operands) override; |
Kevin Enderby | ce4bec8 | 2009-09-10 20:51:44 +0000 | [diff] [blame] | 940 | |
Craig Topper | 39012cc | 2014-03-09 18:03:14 +0000 | [diff] [blame] | 941 | bool ParseDirective(AsmToken DirectiveID) override; |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 942 | }; |
Chris Lattner | 4eb9df0 | 2009-07-29 06:33:53 +0000 | [diff] [blame] | 943 | } // end anonymous namespace |
| 944 | |
Sean Callanan | 86c1181 | 2010-01-23 00:40:33 +0000 | [diff] [blame] | 945 | /// @name Auto-generated Match Functions |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 946 | /// { |
Sean Callanan | 86c1181 | 2010-01-23 00:40:33 +0000 | [diff] [blame] | 947 | |
Chris Lattner | 60db0a6 | 2010-02-09 00:34:28 +0000 | [diff] [blame] | 948 | static unsigned MatchRegisterName(StringRef Name); |
Sean Callanan | 86c1181 | 2010-01-23 00:40:33 +0000 | [diff] [blame] | 949 | |
| 950 | /// } |
Chris Lattner | 4eb9df0 | 2009-07-29 06:33:53 +0000 | [diff] [blame] | 951 | |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 952 | static bool CheckBaseRegAndIndexRegAndScale(unsigned BaseReg, unsigned IndexReg, |
| 953 | unsigned Scale, StringRef &ErrMsg) { |
Kevin Enderby | bc570f2 | 2014-01-23 22:34:42 +0000 | [diff] [blame] | 954 | // If we have both a base register and an index register make sure they are |
| 955 | // both 64-bit or 32-bit registers. |
| 956 | // To support VSIB, IndexReg can be 128-bit or 256-bit registers. |
Douglas Katzman | 0411e86 | 2016-10-05 15:23:35 +0000 | [diff] [blame] | 957 | |
| 958 | if ((BaseReg == X86::RIP && IndexReg != 0) || (IndexReg == X86::RIP)) { |
| 959 | ErrMsg = "invalid base+index expression"; |
| 960 | return true; |
| 961 | } |
Kevin Enderby | bc570f2 | 2014-01-23 22:34:42 +0000 | [diff] [blame] | 962 | if (BaseReg != 0 && IndexReg != 0) { |
| 963 | if (X86MCRegisterClasses[X86::GR64RegClassID].contains(BaseReg) && |
| 964 | (X86MCRegisterClasses[X86::GR16RegClassID].contains(IndexReg) || |
| 965 | X86MCRegisterClasses[X86::GR32RegClassID].contains(IndexReg)) && |
| 966 | IndexReg != X86::RIZ) { |
| 967 | ErrMsg = "base register is 64-bit, but index register is not"; |
| 968 | return true; |
| 969 | } |
| 970 | if (X86MCRegisterClasses[X86::GR32RegClassID].contains(BaseReg) && |
| 971 | (X86MCRegisterClasses[X86::GR16RegClassID].contains(IndexReg) || |
| 972 | X86MCRegisterClasses[X86::GR64RegClassID].contains(IndexReg)) && |
| 973 | IndexReg != X86::EIZ){ |
| 974 | ErrMsg = "base register is 32-bit, but index register is not"; |
| 975 | return true; |
| 976 | } |
| 977 | if (X86MCRegisterClasses[X86::GR16RegClassID].contains(BaseReg)) { |
| 978 | if (X86MCRegisterClasses[X86::GR32RegClassID].contains(IndexReg) || |
| 979 | X86MCRegisterClasses[X86::GR64RegClassID].contains(IndexReg)) { |
| 980 | ErrMsg = "base register is 16-bit, but index register is not"; |
| 981 | return true; |
| 982 | } |
| 983 | if (((BaseReg == X86::BX || BaseReg == X86::BP) && |
| 984 | IndexReg != X86::SI && IndexReg != X86::DI) || |
| 985 | ((BaseReg == X86::SI || BaseReg == X86::DI) && |
| 986 | IndexReg != X86::BX && IndexReg != X86::BP)) { |
| 987 | ErrMsg = "invalid 16-bit base/index register combination"; |
| 988 | return true; |
| 989 | } |
| 990 | } |
| 991 | } |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 992 | return checkScale(Scale, ErrMsg); |
Kevin Enderby | bc570f2 | 2014-01-23 22:34:42 +0000 | [diff] [blame] | 993 | } |
| 994 | |
Devang Patel | 4a6e778 | 2012-01-12 18:03:40 +0000 | [diff] [blame] | 995 | bool X86AsmParser::ParseRegister(unsigned &RegNo, |
| 996 | SMLoc &StartLoc, SMLoc &EndLoc) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 997 | MCAsmParser &Parser = getParser(); |
Chris Lattner | cc2ad08 | 2010-01-15 18:27:19 +0000 | [diff] [blame] | 998 | RegNo = 0; |
Benjamin Kramer | e3d658b | 2012-09-07 14:51:35 +0000 | [diff] [blame] | 999 | const AsmToken &PercentTok = Parser.getTok(); |
| 1000 | StartLoc = PercentTok.getLoc(); |
| 1001 | |
| 1002 | // If we encounter a %, ignore it. This code handles registers with and |
| 1003 | // without the prefix, unprefixed registers can occur in cfi directives. |
| 1004 | if (!isParsingIntelSyntax() && PercentTok.is(AsmToken::Percent)) |
Devang Patel | 41b9dde | 2012-01-17 18:00:18 +0000 | [diff] [blame] | 1005 | Parser.Lex(); // Eat percent token. |
Kevin Enderby | 7d91218 | 2009-09-03 17:15:07 +0000 | [diff] [blame] | 1006 | |
Sean Callanan | 936b0d3 | 2010-01-19 21:44:56 +0000 | [diff] [blame] | 1007 | const AsmToken &Tok = Parser.getTok(); |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 1008 | EndLoc = Tok.getEndLoc(); |
| 1009 | |
Devang Patel | ce6a2ca | 2012-01-20 22:32:05 +0000 | [diff] [blame] | 1010 | if (Tok.isNot(AsmToken::Identifier)) { |
Reid Kleckner | c990b5d | 2017-07-24 20:48:15 +0000 | [diff] [blame] | 1011 | if (isParsingIntelSyntax()) return true; |
Benjamin Kramer | 1930b00 | 2011-10-16 12:10:27 +0000 | [diff] [blame] | 1012 | return Error(StartLoc, "invalid register name", |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 1013 | SMRange(StartLoc, EndLoc)); |
Devang Patel | ce6a2ca | 2012-01-20 22:32:05 +0000 | [diff] [blame] | 1014 | } |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1015 | |
Kevin Enderby | 7d91218 | 2009-09-03 17:15:07 +0000 | [diff] [blame] | 1016 | RegNo = MatchRegisterName(Tok.getString()); |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1017 | |
Chris Lattner | 1261b81 | 2010-09-22 04:11:10 +0000 | [diff] [blame] | 1018 | // If the match failed, try the register name as lowercase. |
| 1019 | if (RegNo == 0) |
Benjamin Kramer | 20baffb | 2011-11-06 20:37:06 +0000 | [diff] [blame] | 1020 | RegNo = MatchRegisterName(Tok.getString().lower()); |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 1021 | |
Michael Kuperstein | cdb076b | 2015-07-30 10:10:25 +0000 | [diff] [blame] | 1022 | // The "flags" register cannot be referenced directly. |
| 1023 | // Treat it as an identifier instead. |
| 1024 | if (isParsingInlineAsm() && isParsingIntelSyntax() && RegNo == X86::EFLAGS) |
| 1025 | RegNo = 0; |
| 1026 | |
Evan Cheng | eda1d4f | 2011-07-27 23:22:03 +0000 | [diff] [blame] | 1027 | if (!is64BitMode()) { |
Eric Christopher | c0a5aae | 2013-12-20 02:04:49 +0000 | [diff] [blame] | 1028 | // FIXME: This should be done using Requires<Not64BitMode> and |
Evan Cheng | eda1d4f | 2011-07-27 23:22:03 +0000 | [diff] [blame] | 1029 | // Requires<In64BitMode> so "eiz" usage in 64-bit instructions can be also |
| 1030 | // checked. |
| 1031 | // FIXME: Check AH, CH, DH, BH cannot be used in an instruction requiring a |
| 1032 | // REX prefix. |
| 1033 | if (RegNo == X86::RIZ || |
| 1034 | X86MCRegisterClasses[X86::GR64RegClassID].contains(RegNo) || |
| 1035 | X86II::isX86_64NonExtLowByteReg(RegNo) || |
Craig Topper | 6acca80 | 2016-08-27 17:13:37 +0000 | [diff] [blame] | 1036 | X86II::isX86_64ExtendedReg(RegNo)) |
Benjamin Kramer | 1930b00 | 2011-10-16 12:10:27 +0000 | [diff] [blame] | 1037 | return Error(StartLoc, "register %" |
| 1038 | + Tok.getString() + " is only available in 64-bit mode", |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 1039 | SMRange(StartLoc, EndLoc)); |
Craig Topper | 29c2273 | 2016-02-26 05:29:32 +0000 | [diff] [blame] | 1040 | } else if (!getSTI().getFeatureBits()[X86::FeatureAVX512]) { |
| 1041 | if (X86II::is32ExtendedReg(RegNo)) |
| 1042 | return Error(StartLoc, "register %" |
Craig Topper | d50b5f8 | 2016-02-26 06:50:24 +0000 | [diff] [blame] | 1043 | + Tok.getString() + " is only available with AVX512", |
Craig Topper | 29c2273 | 2016-02-26 05:29:32 +0000 | [diff] [blame] | 1044 | SMRange(StartLoc, EndLoc)); |
Evan Cheng | eda1d4f | 2011-07-27 23:22:03 +0000 | [diff] [blame] | 1045 | } |
Bruno Cardoso Lopes | 306a1f9 | 2010-07-24 00:06:39 +0000 | [diff] [blame] | 1046 | |
Chris Lattner | 1261b81 | 2010-09-22 04:11:10 +0000 | [diff] [blame] | 1047 | // Parse "%st" as "%st(0)" and "%st(1)", which is multiple tokens. |
| 1048 | if (RegNo == 0 && (Tok.getString() == "st" || Tok.getString() == "ST")) { |
Chris Lattner | d00faaa | 2010-02-09 00:49:22 +0000 | [diff] [blame] | 1049 | RegNo = X86::ST0; |
Chris Lattner | d00faaa | 2010-02-09 00:49:22 +0000 | [diff] [blame] | 1050 | Parser.Lex(); // Eat 'st' |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1051 | |
Chris Lattner | d00faaa | 2010-02-09 00:49:22 +0000 | [diff] [blame] | 1052 | // Check to see if we have '(4)' after %st. |
| 1053 | if (getLexer().isNot(AsmToken::LParen)) |
| 1054 | return false; |
| 1055 | // Lex the paren. |
| 1056 | getParser().Lex(); |
| 1057 | |
| 1058 | const AsmToken &IntTok = Parser.getTok(); |
| 1059 | if (IntTok.isNot(AsmToken::Integer)) |
| 1060 | return Error(IntTok.getLoc(), "expected stack index"); |
| 1061 | switch (IntTok.getIntVal()) { |
| 1062 | case 0: RegNo = X86::ST0; break; |
| 1063 | case 1: RegNo = X86::ST1; break; |
| 1064 | case 2: RegNo = X86::ST2; break; |
| 1065 | case 3: RegNo = X86::ST3; break; |
| 1066 | case 4: RegNo = X86::ST4; break; |
| 1067 | case 5: RegNo = X86::ST5; break; |
| 1068 | case 6: RegNo = X86::ST6; break; |
| 1069 | case 7: RegNo = X86::ST7; break; |
| 1070 | default: return Error(IntTok.getLoc(), "invalid stack index"); |
| 1071 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1072 | |
Chris Lattner | d00faaa | 2010-02-09 00:49:22 +0000 | [diff] [blame] | 1073 | if (getParser().Lex().isNot(AsmToken::RParen)) |
| 1074 | return Error(Parser.getTok().getLoc(), "expected ')'"); |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1075 | |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 1076 | EndLoc = Parser.getTok().getEndLoc(); |
Chris Lattner | d00faaa | 2010-02-09 00:49:22 +0000 | [diff] [blame] | 1077 | Parser.Lex(); // Eat ')' |
| 1078 | return false; |
| 1079 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1080 | |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 1081 | EndLoc = Parser.getTok().getEndLoc(); |
| 1082 | |
Chris Lattner | 8048662 | 2010-06-24 07:29:18 +0000 | [diff] [blame] | 1083 | // If this is "db[0-7]", match it as an alias |
| 1084 | // for dr[0-7]. |
| 1085 | if (RegNo == 0 && Tok.getString().size() == 3 && |
| 1086 | Tok.getString().startswith("db")) { |
| 1087 | switch (Tok.getString()[2]) { |
| 1088 | case '0': RegNo = X86::DR0; break; |
| 1089 | case '1': RegNo = X86::DR1; break; |
| 1090 | case '2': RegNo = X86::DR2; break; |
| 1091 | case '3': RegNo = X86::DR3; break; |
| 1092 | case '4': RegNo = X86::DR4; break; |
| 1093 | case '5': RegNo = X86::DR5; break; |
| 1094 | case '6': RegNo = X86::DR6; break; |
| 1095 | case '7': RegNo = X86::DR7; break; |
| 1096 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1097 | |
Chris Lattner | 8048662 | 2010-06-24 07:29:18 +0000 | [diff] [blame] | 1098 | if (RegNo != 0) { |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 1099 | EndLoc = Parser.getTok().getEndLoc(); |
Chris Lattner | 8048662 | 2010-06-24 07:29:18 +0000 | [diff] [blame] | 1100 | Parser.Lex(); // Eat it. |
| 1101 | return false; |
| 1102 | } |
| 1103 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1104 | |
Devang Patel | ce6a2ca | 2012-01-20 22:32:05 +0000 | [diff] [blame] | 1105 | if (RegNo == 0) { |
Devang Patel | 9a9bb5c | 2012-01-30 20:02:42 +0000 | [diff] [blame] | 1106 | if (isParsingIntelSyntax()) return true; |
Benjamin Kramer | 1930b00 | 2011-10-16 12:10:27 +0000 | [diff] [blame] | 1107 | return Error(StartLoc, "invalid register name", |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 1108 | SMRange(StartLoc, EndLoc)); |
Devang Patel | ce6a2ca | 2012-01-20 22:32:05 +0000 | [diff] [blame] | 1109 | } |
Daniel Dunbar | 0033199 | 2009-07-29 00:02:19 +0000 | [diff] [blame] | 1110 | |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 1111 | Parser.Lex(); // Eat identifier token. |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1112 | return false; |
Daniel Dunbar | 7147577 | 2009-07-17 20:42:00 +0000 | [diff] [blame] | 1113 | } |
| 1114 | |
Yuri Gorshenin | 3939dec | 2014-09-10 09:45:49 +0000 | [diff] [blame] | 1115 | void X86AsmParser::SetFrameRegister(unsigned RegNo) { |
Yuri Gorshenin | e8c81fd | 2014-10-07 11:03:09 +0000 | [diff] [blame] | 1116 | Instrumentation->SetInitialFrameRegister(RegNo); |
Yuri Gorshenin | 3939dec | 2014-09-10 09:45:49 +0000 | [diff] [blame] | 1117 | } |
| 1118 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1119 | std::unique_ptr<X86Operand> X86AsmParser::DefaultMemSIOperand(SMLoc Loc) { |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 1120 | bool Parse32 = is32BitMode() || Code16GCC; |
| 1121 | unsigned Basereg = is64BitMode() ? X86::RSI : (Parse32 ? X86::ESI : X86::SI); |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 1122 | const MCExpr *Disp = MCConstantExpr::create(0, getContext()); |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 1123 | return X86Operand::CreateMem(getPointerWidth(), /*SegReg=*/0, Disp, |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 1124 | /*BaseReg=*/Basereg, /*IndexReg=*/0, /*Scale=*/1, |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 1125 | Loc, Loc, 0); |
David Woodhouse | 2ef8d9c | 2014-01-22 15:08:08 +0000 | [diff] [blame] | 1126 | } |
| 1127 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1128 | std::unique_ptr<X86Operand> X86AsmParser::DefaultMemDIOperand(SMLoc Loc) { |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 1129 | bool Parse32 = is32BitMode() || Code16GCC; |
| 1130 | unsigned Basereg = is64BitMode() ? X86::RDI : (Parse32 ? X86::EDI : X86::DI); |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 1131 | const MCExpr *Disp = MCConstantExpr::create(0, getContext()); |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 1132 | return X86Operand::CreateMem(getPointerWidth(), /*SegReg=*/0, Disp, |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 1133 | /*BaseReg=*/Basereg, /*IndexReg=*/0, /*Scale=*/1, |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 1134 | Loc, Loc, 0); |
David Woodhouse | b33c2ef | 2014-01-22 15:08:21 +0000 | [diff] [blame] | 1135 | } |
| 1136 | |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1137 | bool X86AsmParser::IsSIReg(unsigned Reg) { |
| 1138 | switch (Reg) { |
Craig Topper | 4d18763 | 2016-02-26 05:29:39 +0000 | [diff] [blame] | 1139 | default: llvm_unreachable("Only (R|E)SI and (R|E)DI are expected!"); |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1140 | case X86::RSI: |
| 1141 | case X86::ESI: |
| 1142 | case X86::SI: |
| 1143 | return true; |
| 1144 | case X86::RDI: |
| 1145 | case X86::EDI: |
| 1146 | case X86::DI: |
| 1147 | return false; |
| 1148 | } |
| 1149 | } |
| 1150 | |
| 1151 | unsigned X86AsmParser::GetSIDIForRegClass(unsigned RegClassID, unsigned Reg, |
| 1152 | bool IsSIReg) { |
| 1153 | switch (RegClassID) { |
Craig Topper | 4d18763 | 2016-02-26 05:29:39 +0000 | [diff] [blame] | 1154 | default: llvm_unreachable("Unexpected register class"); |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1155 | case X86::GR64RegClassID: |
| 1156 | return IsSIReg ? X86::RSI : X86::RDI; |
| 1157 | case X86::GR32RegClassID: |
| 1158 | return IsSIReg ? X86::ESI : X86::EDI; |
| 1159 | case X86::GR16RegClassID: |
| 1160 | return IsSIReg ? X86::SI : X86::DI; |
| 1161 | } |
| 1162 | } |
| 1163 | |
Michael Kuperstein | ffcc766 | 2015-07-23 10:23:48 +0000 | [diff] [blame] | 1164 | void X86AsmParser::AddDefaultSrcDestOperands( |
| 1165 | OperandVector& Operands, std::unique_ptr<llvm::MCParsedAsmOperand> &&Src, |
| 1166 | std::unique_ptr<llvm::MCParsedAsmOperand> &&Dst) { |
| 1167 | if (isParsingIntelSyntax()) { |
| 1168 | Operands.push_back(std::move(Dst)); |
| 1169 | Operands.push_back(std::move(Src)); |
| 1170 | } |
| 1171 | else { |
| 1172 | Operands.push_back(std::move(Src)); |
| 1173 | Operands.push_back(std::move(Dst)); |
| 1174 | } |
| 1175 | } |
| 1176 | |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1177 | bool X86AsmParser::VerifyAndAdjustOperands(OperandVector &OrigOperands, |
| 1178 | OperandVector &FinalOperands) { |
| 1179 | |
| 1180 | if (OrigOperands.size() > 1) { |
Craig Topper | d55f4bc | 2016-02-16 07:45:07 +0000 | [diff] [blame] | 1181 | // Check if sizes match, OrigOperands also contains the instruction name |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1182 | assert(OrigOperands.size() == FinalOperands.size() + 1 && |
Craig Topper | d55f4bc | 2016-02-16 07:45:07 +0000 | [diff] [blame] | 1183 | "Operand size mismatch"); |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1184 | |
Marina Yatsina | ff262fa | 2016-01-21 11:37:06 +0000 | [diff] [blame] | 1185 | SmallVector<std::pair<SMLoc, std::string>, 2> Warnings; |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1186 | // Verify types match |
| 1187 | int RegClassID = -1; |
| 1188 | for (unsigned int i = 0; i < FinalOperands.size(); ++i) { |
| 1189 | X86Operand &OrigOp = static_cast<X86Operand &>(*OrigOperands[i + 1]); |
| 1190 | X86Operand &FinalOp = static_cast<X86Operand &>(*FinalOperands[i]); |
| 1191 | |
| 1192 | if (FinalOp.isReg() && |
| 1193 | (!OrigOp.isReg() || FinalOp.getReg() != OrigOp.getReg())) |
| 1194 | // Return false and let a normal complaint about bogus operands happen |
| 1195 | return false; |
| 1196 | |
| 1197 | if (FinalOp.isMem()) { |
| 1198 | |
| 1199 | if (!OrigOp.isMem()) |
| 1200 | // Return false and let a normal complaint about bogus operands happen |
| 1201 | return false; |
| 1202 | |
| 1203 | unsigned OrigReg = OrigOp.Mem.BaseReg; |
| 1204 | unsigned FinalReg = FinalOp.Mem.BaseReg; |
| 1205 | |
| 1206 | // If we've already encounterd a register class, make sure all register |
| 1207 | // bases are of the same register class |
| 1208 | if (RegClassID != -1 && |
| 1209 | !X86MCRegisterClasses[RegClassID].contains(OrigReg)) { |
| 1210 | return Error(OrigOp.getStartLoc(), |
| 1211 | "mismatching source and destination index registers"); |
| 1212 | } |
| 1213 | |
| 1214 | if (X86MCRegisterClasses[X86::GR64RegClassID].contains(OrigReg)) |
| 1215 | RegClassID = X86::GR64RegClassID; |
| 1216 | else if (X86MCRegisterClasses[X86::GR32RegClassID].contains(OrigReg)) |
| 1217 | RegClassID = X86::GR32RegClassID; |
| 1218 | else if (X86MCRegisterClasses[X86::GR16RegClassID].contains(OrigReg)) |
| 1219 | RegClassID = X86::GR16RegClassID; |
Marina Yatsina | 701938d | 2016-01-20 14:03:47 +0000 | [diff] [blame] | 1220 | else |
Craig Topper | 5a62f7e | 2016-02-16 07:28:03 +0000 | [diff] [blame] | 1221 | // Unexpected register class type |
Marina Yatsina | 701938d | 2016-01-20 14:03:47 +0000 | [diff] [blame] | 1222 | // Return false and let a normal complaint about bogus operands happen |
| 1223 | return false; |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1224 | |
| 1225 | bool IsSI = IsSIReg(FinalReg); |
| 1226 | FinalReg = GetSIDIForRegClass(RegClassID, FinalReg, IsSI); |
| 1227 | |
| 1228 | if (FinalReg != OrigReg) { |
| 1229 | std::string RegName = IsSI ? "ES:(R|E)SI" : "ES:(R|E)DI"; |
Marina Yatsina | ff262fa | 2016-01-21 11:37:06 +0000 | [diff] [blame] | 1230 | Warnings.push_back(std::make_pair( |
| 1231 | OrigOp.getStartLoc(), |
| 1232 | "memory operand is only for determining the size, " + RegName + |
| 1233 | " will be used for the location")); |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1234 | } |
| 1235 | |
| 1236 | FinalOp.Mem.Size = OrigOp.Mem.Size; |
| 1237 | FinalOp.Mem.SegReg = OrigOp.Mem.SegReg; |
| 1238 | FinalOp.Mem.BaseReg = FinalReg; |
| 1239 | } |
| 1240 | } |
| 1241 | |
Marina Yatsina | ff262fa | 2016-01-21 11:37:06 +0000 | [diff] [blame] | 1242 | // Produce warnings only if all the operands passed the adjustment - prevent |
| 1243 | // legal cases like "movsd (%rax), %xmm0" mistakenly produce warnings |
Craig Topper | 16d7eb2 | 2016-02-16 07:45:04 +0000 | [diff] [blame] | 1244 | for (auto &WarningMsg : Warnings) { |
| 1245 | Warning(WarningMsg.first, WarningMsg.second); |
Marina Yatsina | ff262fa | 2016-01-21 11:37:06 +0000 | [diff] [blame] | 1246 | } |
| 1247 | |
| 1248 | // Remove old operands |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 1249 | for (unsigned int i = 0; i < FinalOperands.size(); ++i) |
| 1250 | OrigOperands.pop_back(); |
| 1251 | } |
| 1252 | // OrigOperands.append(FinalOperands.begin(), FinalOperands.end()); |
| 1253 | for (unsigned int i = 0; i < FinalOperands.size(); ++i) |
| 1254 | OrigOperands.push_back(std::move(FinalOperands[i])); |
| 1255 | |
| 1256 | return false; |
| 1257 | } |
| 1258 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1259 | std::unique_ptr<X86Operand> X86AsmParser::ParseOperand() { |
Devang Patel | 9a9bb5c | 2012-01-30 20:02:42 +0000 | [diff] [blame] | 1260 | if (isParsingIntelSyntax()) |
Devang Patel | 46831de | 2012-01-12 01:36:43 +0000 | [diff] [blame] | 1261 | return ParseIntelOperand(); |
| 1262 | return ParseATTOperand(); |
| 1263 | } |
| 1264 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1265 | std::unique_ptr<X86Operand> X86AsmParser::CreateMemForInlineAsm( |
| 1266 | unsigned SegReg, const MCExpr *Disp, unsigned BaseReg, unsigned IndexReg, |
| 1267 | unsigned Scale, SMLoc Start, SMLoc End, unsigned Size, StringRef Identifier, |
Coby Tayree | ef66b3b | 2017-09-10 12:21:24 +0000 | [diff] [blame] | 1268 | const InlineAsmIdentifierInfo &Info) { |
Reid Kleckner | 5b37c18 | 2014-08-01 20:21:24 +0000 | [diff] [blame] | 1269 | // If we found a decl other than a VarDecl, then assume it is a FuncDecl or |
| 1270 | // some other label reference. |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1271 | if (Info.isKind(InlineAsmIdentifierInfo::IK_Label)) { |
Reid Kleckner | 5b37c18 | 2014-08-01 20:21:24 +0000 | [diff] [blame] | 1272 | // Insert an explicit size if the user didn't have one. |
| 1273 | if (!Size) { |
| 1274 | Size = getPointerWidth(); |
Craig Topper | 7d5b231 | 2015-10-10 05:25:02 +0000 | [diff] [blame] | 1275 | InstInfo->AsmRewrites->emplace_back(AOK_SizeDirective, Start, |
| 1276 | /*Len=*/0, Size); |
Reid Kleckner | 5b37c18 | 2014-08-01 20:21:24 +0000 | [diff] [blame] | 1277 | } |
Reid Kleckner | 5b37c18 | 2014-08-01 20:21:24 +0000 | [diff] [blame] | 1278 | // Create an absolute memory reference in order to match against |
| 1279 | // instructions taking a PC relative operand. |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 1280 | return X86Operand::CreateMem(getPointerWidth(), Disp, Start, End, Size, |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1281 | Identifier, Info.Label.Decl); |
Reid Kleckner | d84e70e | 2014-03-04 00:33:17 +0000 | [diff] [blame] | 1282 | } |
Reid Kleckner | d84e70e | 2014-03-04 00:33:17 +0000 | [diff] [blame] | 1283 | // We either have a direct symbol reference, or an offset from a symbol. The |
| 1284 | // parser always puts the symbol on the LHS, so look there for size |
| 1285 | // calculation purposes. |
Reid Kleckner | 6d2ea6e | 2017-05-04 18:19:52 +0000 | [diff] [blame] | 1286 | unsigned FrontendSize = 0; |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1287 | void *Decl = nullptr; |
| 1288 | bool IsGlobalLV = false; |
| 1289 | if (Info.isKind(InlineAsmIdentifierInfo::IK_Var)) { |
| 1290 | // Size is in terms of bits in this context. |
| 1291 | FrontendSize = Info.Var.Type * 8; |
| 1292 | Decl = Info.Var.Decl; |
| 1293 | IsGlobalLV = Info.Var.IsGlobalLV; |
| 1294 | } |
| 1295 | // It is widely common for MS InlineAsm to use a global variable and one/two |
| 1296 | // registers in a mmory expression, and though unaccessible via rip/eip. |
| 1297 | if (IsGlobalLV && (BaseReg || IndexReg)) { |
| 1298 | return X86Operand::CreateMem(getPointerWidth(), Disp, Start, End); |
| 1299 | // Otherwise, we set the base register to a non-zero value |
Chad Rosier | 175d0ae | 2013-04-12 18:21:18 +0000 | [diff] [blame] | 1300 | // if we don't know the actual value at this time. This is necessary to |
Chad Rosier | 7ca135b | 2013-03-19 21:11:56 +0000 | [diff] [blame] | 1301 | // get the matching correct in some cases. |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1302 | } else { |
| 1303 | BaseReg = BaseReg ? BaseReg : 1; |
| 1304 | return X86Operand::CreateMem(getPointerWidth(), SegReg, Disp, BaseReg, |
| 1305 | IndexReg, Scale, Start, End, Size, Identifier, |
| 1306 | Decl, FrontendSize); |
| 1307 | } |
Chad Rosier | 7ca135b | 2013-03-19 21:11:56 +0000 | [diff] [blame] | 1308 | } |
| 1309 | |
Coby Tayree | 2cb497a | 2017-04-04 14:43:23 +0000 | [diff] [blame] | 1310 | // Some binary bitwise operators have a named synonymous |
| 1311 | // Query a candidate string for being such a named operator |
| 1312 | // and if so - invoke the appropriate handler |
| 1313 | bool X86AsmParser::ParseIntelNamedOperator(StringRef Name, IntelExprStateMachine &SM) { |
| 1314 | // A named operator should be either lower or upper case, but not a mix |
| 1315 | if (Name.compare(Name.lower()) && Name.compare(Name.upper())) |
| 1316 | return false; |
| 1317 | if (Name.equals_lower("not")) |
| 1318 | SM.onNot(); |
| 1319 | else if (Name.equals_lower("or")) |
| 1320 | SM.onOr(); |
| 1321 | else if (Name.equals_lower("shl")) |
| 1322 | SM.onLShift(); |
| 1323 | else if (Name.equals_lower("shr")) |
| 1324 | SM.onRShift(); |
| 1325 | else if (Name.equals_lower("xor")) |
| 1326 | SM.onXor(); |
| 1327 | else if (Name.equals_lower("and")) |
| 1328 | SM.onAnd(); |
Coby Tayree | 41a5b55 | 2017-06-27 16:58:27 +0000 | [diff] [blame] | 1329 | else if (Name.equals_lower("mod")) |
| 1330 | SM.onMod(); |
Coby Tayree | 2cb497a | 2017-04-04 14:43:23 +0000 | [diff] [blame] | 1331 | else |
| 1332 | return false; |
| 1333 | return true; |
| 1334 | } |
| 1335 | |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1336 | bool X86AsmParser::ParseIntelExpression(IntelExprStateMachine &SM, SMLoc &End) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1337 | MCAsmParser &Parser = getParser(); |
Chad Rosier | 6844ea0 | 2012-10-24 22:13:37 +0000 | [diff] [blame] | 1338 | const AsmToken &Tok = Parser.getTok(); |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 1339 | StringRef ErrMsg; |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 1340 | |
Marina Yatsina | 8dfd5cb | 2015-12-24 12:09:51 +0000 | [diff] [blame] | 1341 | AsmToken::TokenKind PrevTK = AsmToken::Error; |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1342 | bool Done = false; |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1343 | while (!Done) { |
| 1344 | bool UpdateLocLex = true; |
Andrew V. Tischenko | fdb264e | 2017-05-26 13:23:34 +0000 | [diff] [blame] | 1345 | AsmToken::TokenKind TK = getLexer().getKind(); |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1346 | |
David Majnemer | 6a5b812 | 2014-06-19 01:25:43 +0000 | [diff] [blame] | 1347 | switch (TK) { |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1348 | default: |
| 1349 | if ((Done = SM.isValidEndState())) |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1350 | break; |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1351 | return Error(Tok.getLoc(), "unknown token in expression"); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1352 | case AsmToken::EndOfStatement: |
Chad Rosier | bfb7099 | 2013-04-17 00:11:46 +0000 | [diff] [blame] | 1353 | Done = true; |
| 1354 | break; |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1355 | case AsmToken::Real: |
| 1356 | // DotOperator: [ebx].0 |
| 1357 | UpdateLocLex = false; |
| 1358 | if (ParseIntelDotOperator(SM, End)) |
| 1359 | return true; |
| 1360 | break; |
David Majnemer | 6a5b812 | 2014-06-19 01:25:43 +0000 | [diff] [blame] | 1361 | case AsmToken::String: |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1362 | case AsmToken::Identifier: { |
Chad Rosier | 152749c | 2013-04-12 18:54:20 +0000 | [diff] [blame] | 1363 | SMLoc IdentLoc = Tok.getLoc(); |
| 1364 | StringRef Identifier = Tok.getString(); |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1365 | UpdateLocLex = false; |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1366 | // Register |
| 1367 | unsigned Reg; |
| 1368 | if (Tok.isNot(AsmToken::String) && !ParseRegister(Reg, IdentLoc, End)) { |
| 1369 | if (SM.onRegister(Reg, ErrMsg)) |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 1370 | return Error(Tok.getLoc(), ErrMsg); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1371 | break; |
| 1372 | } |
| 1373 | // Operator synonymous ("not", "or" etc.) |
| 1374 | if ((UpdateLocLex = ParseIntelNamedOperator(Identifier, SM))) |
| 1375 | break; |
| 1376 | // Symbol reference, when parsing assembly content |
| 1377 | InlineAsmIdentifierInfo Info; |
| 1378 | const MCExpr *Val; |
| 1379 | if (!isParsingInlineAsm()) { |
| 1380 | if (getParser().parsePrimaryExpr(Val, End)) { |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1381 | return Error(Tok.getLoc(), "Unexpected identifier!"); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1382 | } else if (SM.onIdentifierExpr(Val, Identifier, Info, false, ErrMsg)) { |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1383 | return Error(IdentLoc, ErrMsg); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1384 | } else |
| 1385 | break; |
| 1386 | } |
| 1387 | // MS InlineAsm operators (TYPE/LENGTH/SIZE) |
| 1388 | if (unsigned OpKind = IdentifyIntelInlineAsmOperator(Identifier)) { |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1389 | if (OpKind == IOK_OFFSET) |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1390 | return Error(IdentLoc, "Dealing OFFSET operator as part of" |
| 1391 | "a compound immediate expression is yet to be supported"); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1392 | if (int64_t Val = ParseIntelInlineAsmOperator(OpKind)) { |
| 1393 | if (SM.onInteger(Val, ErrMsg)) |
| 1394 | return Error(IdentLoc, ErrMsg); |
| 1395 | } else |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1396 | return true; |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1397 | break; |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1398 | } |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1399 | // MS Dot Operator expression |
| 1400 | if (Identifier.count('.') && PrevTK == AsmToken::RBrac) { |
| 1401 | if (ParseIntelDotOperator(SM, End)) |
| 1402 | return true; |
| 1403 | break; |
| 1404 | } |
| 1405 | // MS InlineAsm identifier |
| 1406 | if (ParseIntelInlineAsmIdentifier(Val, Identifier, Info, false, End)) |
| 1407 | return true; |
| 1408 | else if (SM.onIdentifierExpr(Val, Identifier, Info, true, ErrMsg)) |
| 1409 | return Error(IdentLoc, ErrMsg); |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1410 | break; |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1411 | } |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1412 | case AsmToken::Integer: { |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1413 | // Look for 'b' or 'f' following an Integer as a directional label |
| 1414 | SMLoc Loc = getTok().getLoc(); |
| 1415 | int64_t IntVal = getTok().getIntVal(); |
| 1416 | End = consumeToken(); |
| 1417 | UpdateLocLex = false; |
| 1418 | if (getLexer().getKind() == AsmToken::Identifier) { |
| 1419 | StringRef IDVal = getTok().getString(); |
| 1420 | if (IDVal == "f" || IDVal == "b") { |
| 1421 | MCSymbol *Sym = |
Jim Grosbach | 6f48200 | 2015-05-18 18:43:14 +0000 | [diff] [blame] | 1422 | getContext().getDirectionalLocalSymbol(IntVal, IDVal == "b"); |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1423 | MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; |
Michael Liao | 5bf9578 | 2014-12-04 05:20:33 +0000 | [diff] [blame] | 1424 | const MCExpr *Val = |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 1425 | MCSymbolRefExpr::create(Sym, Variant, getContext()); |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1426 | if (IDVal == "b" && Sym->isUndefined()) |
| 1427 | return Error(Loc, "invalid reference to undefined symbol"); |
| 1428 | StringRef Identifier = Sym->getName(); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1429 | InlineAsmIdentifierInfo Info; |
| 1430 | if (SM.onIdentifierExpr(Val, Identifier, Info, |
| 1431 | isParsingInlineAsm(), ErrMsg)) |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1432 | return Error(Loc, ErrMsg); |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1433 | End = consumeToken(); |
| 1434 | } else { |
Kevin Enderby | 9d11702 | 2014-01-23 21:52:41 +0000 | [diff] [blame] | 1435 | if (SM.onInteger(IntVal, ErrMsg)) |
| 1436 | return Error(Loc, ErrMsg); |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1437 | } |
| 1438 | } else { |
Kevin Enderby | 9d11702 | 2014-01-23 21:52:41 +0000 | [diff] [blame] | 1439 | if (SM.onInteger(IntVal, ErrMsg)) |
| 1440 | return Error(Loc, ErrMsg); |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1441 | } |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1442 | break; |
Kevin Enderby | 36eba25 | 2013-12-19 23:16:14 +0000 | [diff] [blame] | 1443 | } |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 1444 | case AsmToken::Plus: |
| 1445 | if (SM.onPlus(ErrMsg)) |
| 1446 | return Error(getTok().getLoc(), ErrMsg); |
| 1447 | break; |
| 1448 | case AsmToken::Minus: |
| 1449 | if (SM.onMinus(ErrMsg)) |
| 1450 | return Error(getTok().getLoc(), ErrMsg); |
| 1451 | break; |
Ehsan Akhgari | 4103da6 | 2014-07-04 19:13:05 +0000 | [diff] [blame] | 1452 | case AsmToken::Tilde: SM.onNot(); break; |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1453 | case AsmToken::Star: SM.onStar(); break; |
Chad Rosier | 4a7005e | 2013-04-05 16:28:55 +0000 | [diff] [blame] | 1454 | case AsmToken::Slash: SM.onDivide(); break; |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 1455 | case AsmToken::Pipe: SM.onOr(); break; |
Michael Kuperstein | e3de07a | 2015-06-14 12:59:45 +0000 | [diff] [blame] | 1456 | case AsmToken::Caret: SM.onXor(); break; |
Kevin Enderby | 2e13b1c | 2014-01-15 19:05:24 +0000 | [diff] [blame] | 1457 | case AsmToken::Amp: SM.onAnd(); break; |
Kevin Enderby | d6b1071 | 2014-02-06 01:21:15 +0000 | [diff] [blame] | 1458 | case AsmToken::LessLess: |
| 1459 | SM.onLShift(); break; |
| 1460 | case AsmToken::GreaterGreater: |
| 1461 | SM.onRShift(); break; |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1462 | case AsmToken::LBrac: |
| 1463 | if (SM.onLBrac()) |
| 1464 | return Error(Tok.getLoc(), "unexpected bracket encountered"); |
| 1465 | break; |
| 1466 | case AsmToken::RBrac: |
| 1467 | if (SM.onRBrac()) |
| 1468 | return Error(Tok.getLoc(), "unexpected bracket encountered"); |
| 1469 | break; |
Chad Rosier | 4a7005e | 2013-04-05 16:28:55 +0000 | [diff] [blame] | 1470 | case AsmToken::LParen: SM.onLParen(); break; |
| 1471 | case AsmToken::RParen: SM.onRParen(); break; |
Chad Rosier | 5c118fd | 2013-01-14 22:31:35 +0000 | [diff] [blame] | 1472 | } |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 1473 | if (SM.hadError()) |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1474 | return Error(Tok.getLoc(), "unknown token in expression"); |
Chad Rosier | 3124627 | 2013-04-17 21:01:45 +0000 | [diff] [blame] | 1475 | |
Alp Toker | a5b88a5 | 2013-12-02 16:06:06 +0000 | [diff] [blame] | 1476 | if (!Done && UpdateLocLex) |
| 1477 | End = consumeToken(); |
Marina Yatsina | 8dfd5cb | 2015-12-24 12:09:51 +0000 | [diff] [blame] | 1478 | |
| 1479 | PrevTK = TK; |
Devang Patel | 41b9dde | 2012-01-17 18:00:18 +0000 | [diff] [blame] | 1480 | } |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1481 | return false; |
Chad Rosier | 5362af9 | 2013-04-16 18:15:40 +0000 | [diff] [blame] | 1482 | } |
| 1483 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1484 | void X86AsmParser::RewriteIntelExpression(IntelExprStateMachine &SM, |
| 1485 | SMLoc Start, SMLoc End) { |
| 1486 | SMLoc Loc = Start; |
| 1487 | unsigned ExprLen = End.getPointer() - Start.getPointer(); |
| 1488 | // Skip everything before a symbol displacement (if we have one) |
| 1489 | if (SM.getSym()) { |
| 1490 | StringRef SymName = SM.getSymName(); |
| 1491 | if (unsigned Len = SymName.data() - Start.getPointer()) |
| 1492 | InstInfo->AsmRewrites->emplace_back(AOK_Skip, Start, Len); |
| 1493 | Loc = SMLoc::getFromPointer(SymName.data() + SymName.size()); |
| 1494 | ExprLen = End.getPointer() - (SymName.data() + SymName.size()); |
| 1495 | // If we have only a symbol than there's no need for complex rewrite, |
| 1496 | // simply skip everything after it |
| 1497 | if (!(SM.getBaseReg() || SM.getIndexReg() || SM.getImm())) { |
| 1498 | if (ExprLen) |
| 1499 | InstInfo->AsmRewrites->emplace_back(AOK_Skip, Loc, ExprLen); |
| 1500 | return; |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1501 | } |
| 1502 | } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1503 | // Build an Intel Expression rewrite |
| 1504 | StringRef BaseRegStr; |
| 1505 | StringRef IndexRegStr; |
| 1506 | if (SM.getBaseReg()) |
| 1507 | BaseRegStr = X86IntelInstPrinter::getRegisterName(SM.getBaseReg()); |
| 1508 | if (SM.getIndexReg()) |
| 1509 | IndexRegStr = X86IntelInstPrinter::getRegisterName(SM.getIndexReg()); |
| 1510 | // Emit it |
| 1511 | IntelExpr Expr(BaseRegStr, IndexRegStr, SM.getScale(), SM.getImm(), SM.isMemExpr()); |
| 1512 | InstInfo->AsmRewrites->emplace_back(Loc, ExprLen, Expr); |
Devang Patel | 41b9dde | 2012-01-17 18:00:18 +0000 | [diff] [blame] | 1513 | } |
| 1514 | |
Chad Rosier | 8a24466 | 2013-04-02 20:02:33 +0000 | [diff] [blame] | 1515 | // Inline assembly may use variable names with namespace alias qualifiers. |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1516 | bool X86AsmParser::ParseIntelInlineAsmIdentifier(const MCExpr *&Val, |
| 1517 | StringRef &Identifier, |
| 1518 | InlineAsmIdentifierInfo &Info, |
| 1519 | bool IsUnevaluatedOperand, |
| 1520 | SMLoc &End) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1521 | MCAsmParser &Parser = getParser(); |
Reid Kleckner | c2b9254 | 2015-08-26 21:57:25 +0000 | [diff] [blame] | 1522 | assert(isParsingInlineAsm() && "Expected to be parsing inline assembly."); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1523 | Val = nullptr; |
Chad Rosier | 8a24466 | 2013-04-02 20:02:33 +0000 | [diff] [blame] | 1524 | |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 1525 | StringRef LineBuf(Identifier.data()); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1526 | SemaCallback->LookupInlineAsmIdentifier(LineBuf, Info, IsUnevaluatedOperand); |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 1527 | |
Chad Rosier | 8a24466 | 2013-04-02 20:02:33 +0000 | [diff] [blame] | 1528 | const AsmToken &Tok = Parser.getTok(); |
Ehsan Akhgari | db0e706 | 2014-09-22 02:21:35 +0000 | [diff] [blame] | 1529 | SMLoc Loc = Tok.getLoc(); |
John McCall | f73981b | 2013-05-03 00:15:41 +0000 | [diff] [blame] | 1530 | |
| 1531 | // Advance the token stream until the end of the current token is |
| 1532 | // after the end of what the frontend claimed. |
| 1533 | const char *EndPtr = Tok.getLoc().getPointer() + LineBuf.size(); |
Reid Kleckner | c2b9254 | 2015-08-26 21:57:25 +0000 | [diff] [blame] | 1534 | do { |
John McCall | f73981b | 2013-05-03 00:15:41 +0000 | [diff] [blame] | 1535 | End = Tok.getEndLoc(); |
| 1536 | getLexer().Lex(); |
Reid Kleckner | c2b9254 | 2015-08-26 21:57:25 +0000 | [diff] [blame] | 1537 | } while (End.getPointer() < EndPtr); |
Ehsan Akhgari | db0e706 | 2014-09-22 02:21:35 +0000 | [diff] [blame] | 1538 | Identifier = LineBuf; |
| 1539 | |
Reid Kleckner | c2b9254 | 2015-08-26 21:57:25 +0000 | [diff] [blame] | 1540 | // The frontend should end parsing on an assembler token boundary, unless it |
| 1541 | // failed parsing. |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1542 | assert((End.getPointer() == EndPtr || |
| 1543 | Info.isKind(InlineAsmIdentifierInfo::IK_Invalid)) && |
| 1544 | "frontend claimed part of a token?"); |
Reid Kleckner | c2b9254 | 2015-08-26 21:57:25 +0000 | [diff] [blame] | 1545 | |
Ehsan Akhgari | db0e706 | 2014-09-22 02:21:35 +0000 | [diff] [blame] | 1546 | // If the identifier lookup was unsuccessful, assume that we are dealing with |
| 1547 | // a label. |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1548 | if (Info.isKind(InlineAsmIdentifierInfo::IK_Invalid)) { |
Ehsan Akhgari | bb6bb07 | 2014-09-22 20:40:36 +0000 | [diff] [blame] | 1549 | StringRef InternalName = |
| 1550 | SemaCallback->LookupInlineAsmLabel(Identifier, getSourceManager(), |
| 1551 | Loc, false); |
| 1552 | assert(InternalName.size() && "We should have an internal name here."); |
| 1553 | // Push a rewrite for replacing the identifier name with the internal name. |
Craig Topper | 7d5b231 | 2015-10-10 05:25:02 +0000 | [diff] [blame] | 1554 | InstInfo->AsmRewrites->emplace_back(AOK_Label, Loc, Identifier.size(), |
| 1555 | InternalName); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1556 | } else if (Info.isKind(InlineAsmIdentifierInfo::IK_EnumVal)) |
| 1557 | return false; |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 1558 | // Create the symbol reference. |
Jim Grosbach | 6f48200 | 2015-05-18 18:43:14 +0000 | [diff] [blame] | 1559 | MCSymbol *Sym = getContext().getOrCreateSymbol(Identifier); |
Chad Rosier | 8a24466 | 2013-04-02 20:02:33 +0000 | [diff] [blame] | 1560 | MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 1561 | Val = MCSymbolRefExpr::create(Sym, Variant, getParser().getContext()); |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1562 | return false; |
Chad Rosier | 8a24466 | 2013-04-02 20:02:33 +0000 | [diff] [blame] | 1563 | } |
| 1564 | |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1565 | //ParseRoundingModeOp - Parse AVX-512 rounding mode operand |
| 1566 | std::unique_ptr<X86Operand> |
| 1567 | X86AsmParser::ParseRoundingModeOp(SMLoc Start, SMLoc End) { |
| 1568 | MCAsmParser &Parser = getParser(); |
| 1569 | const AsmToken &Tok = Parser.getTok(); |
Elena Demikhovsky | 29792e9 | 2015-05-07 11:24:42 +0000 | [diff] [blame] | 1570 | // Eat "{" and mark the current place. |
| 1571 | const SMLoc consumedToken = consumeToken(); |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1572 | if (Tok.getIdentifier().startswith("r")){ |
| 1573 | int rndMode = StringSwitch<int>(Tok.getIdentifier()) |
| 1574 | .Case("rn", X86::STATIC_ROUNDING::TO_NEAREST_INT) |
| 1575 | .Case("rd", X86::STATIC_ROUNDING::TO_NEG_INF) |
| 1576 | .Case("ru", X86::STATIC_ROUNDING::TO_POS_INF) |
| 1577 | .Case("rz", X86::STATIC_ROUNDING::TO_ZERO) |
| 1578 | .Default(-1); |
| 1579 | if (-1 == rndMode) |
| 1580 | return ErrorOperand(Tok.getLoc(), "Invalid rounding mode."); |
| 1581 | Parser.Lex(); // Eat "r*" of r*-sae |
| 1582 | if (!getLexer().is(AsmToken::Minus)) |
| 1583 | return ErrorOperand(Tok.getLoc(), "Expected - at this point"); |
| 1584 | Parser.Lex(); // Eat "-" |
| 1585 | Parser.Lex(); // Eat the sae |
| 1586 | if (!getLexer().is(AsmToken::RCurly)) |
| 1587 | return ErrorOperand(Tok.getLoc(), "Expected } at this point"); |
| 1588 | Parser.Lex(); // Eat "}" |
| 1589 | const MCExpr *RndModeOp = |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 1590 | MCConstantExpr::create(rndMode, Parser.getContext()); |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1591 | return X86Operand::CreateImm(RndModeOp, Start, End); |
| 1592 | } |
Elena Demikhovsky | 29792e9 | 2015-05-07 11:24:42 +0000 | [diff] [blame] | 1593 | if(Tok.getIdentifier().equals("sae")){ |
| 1594 | Parser.Lex(); // Eat the sae |
| 1595 | if (!getLexer().is(AsmToken::RCurly)) |
| 1596 | return ErrorOperand(Tok.getLoc(), "Expected } at this point"); |
| 1597 | Parser.Lex(); // Eat "}" |
| 1598 | return X86Operand::CreateToken("{sae}", consumedToken); |
| 1599 | } |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1600 | return ErrorOperand(Tok.getLoc(), "unknown token in expression"); |
| 1601 | } |
Chad Rosier | 91c8266 | 2012-10-24 17:22:29 +0000 | [diff] [blame] | 1602 | |
Chad Rosier | 5dcb466 | 2012-10-24 22:21:50 +0000 | [diff] [blame] | 1603 | /// Parse the '.' operator. |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1604 | bool X86AsmParser::ParseIntelDotOperator(IntelExprStateMachine &SM, SMLoc &End) { |
| 1605 | const AsmToken &Tok = getTok(); |
| 1606 | unsigned Offset; |
Chad Rosier | 5dcb466 | 2012-10-24 22:21:50 +0000 | [diff] [blame] | 1607 | |
Reid Kleckner | 94a1c4d | 2014-03-06 19:19:12 +0000 | [diff] [blame] | 1608 | // Drop the optional '.'. |
| 1609 | StringRef DotDispStr = Tok.getString(); |
| 1610 | if (DotDispStr.startswith(".")) |
| 1611 | DotDispStr = DotDispStr.drop_front(1); |
Chad Rosier | 5dcb466 | 2012-10-24 22:21:50 +0000 | [diff] [blame] | 1612 | |
Chad Rosier | 5dcb466 | 2012-10-24 22:21:50 +0000 | [diff] [blame] | 1613 | // .Imm gets lexed as a real. |
| 1614 | if (Tok.is(AsmToken::Real)) { |
| 1615 | APInt DotDisp; |
| 1616 | DotDispStr.getAsInteger(10, DotDisp); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1617 | Offset = DotDisp.getZExtValue(); |
Chad Rosier | cc541e8 | 2013-04-19 15:57:00 +0000 | [diff] [blame] | 1618 | } else if (isParsingInlineAsm() && Tok.is(AsmToken::Identifier)) { |
Chad Rosier | 240b7b9 | 2012-10-25 21:51:10 +0000 | [diff] [blame] | 1619 | std::pair<StringRef, StringRef> BaseMember = DotDispStr.split('.'); |
| 1620 | if (SemaCallback->LookupInlineAsmField(BaseMember.first, BaseMember.second, |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1621 | Offset)) |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1622 | return Error(Tok.getLoc(), "Unable to lookup field reference!"); |
Chad Rosier | cc541e8 | 2013-04-19 15:57:00 +0000 | [diff] [blame] | 1623 | } else |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1624 | return Error(Tok.getLoc(), "Unexpected token type!"); |
Chad Rosier | 911c1f3 | 2012-10-25 17:37:43 +0000 | [diff] [blame] | 1625 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1626 | // Eat the DotExpression and update End |
| 1627 | End = SMLoc::getFromPointer(DotDispStr.data()); |
| 1628 | const char *DotExprEndLoc = DotDispStr.data() + DotDispStr.size(); |
| 1629 | while (Tok.getLoc().getPointer() < DotExprEndLoc) |
| 1630 | Lex(); |
| 1631 | SM.addImm(Offset); |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1632 | return false; |
Chad Rosier | 5dcb466 | 2012-10-24 22:21:50 +0000 | [diff] [blame] | 1633 | } |
| 1634 | |
Chad Rosier | 91c8266 | 2012-10-24 17:22:29 +0000 | [diff] [blame] | 1635 | /// Parse the 'offset' operator. This operator is used to specify the |
| 1636 | /// location rather then the content of a variable. |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1637 | std::unique_ptr<X86Operand> X86AsmParser::ParseIntelOffsetOfOperator() { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1638 | MCAsmParser &Parser = getParser(); |
Chad Rosier | 1878585 | 2013-04-09 20:58:48 +0000 | [diff] [blame] | 1639 | const AsmToken &Tok = Parser.getTok(); |
Chad Rosier | 10d1d1c | 2013-04-09 20:44:09 +0000 | [diff] [blame] | 1640 | SMLoc OffsetOfLoc = Tok.getLoc(); |
Chad Rosier | 91c8266 | 2012-10-24 17:22:29 +0000 | [diff] [blame] | 1641 | Parser.Lex(); // Eat offset. |
Chad Rosier | 91c8266 | 2012-10-24 17:22:29 +0000 | [diff] [blame] | 1642 | |
Chad Rosier | 91c8266 | 2012-10-24 17:22:29 +0000 | [diff] [blame] | 1643 | const MCExpr *Val; |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 1644 | InlineAsmIdentifierInfo Info; |
Chad Rosier | 1878585 | 2013-04-09 20:58:48 +0000 | [diff] [blame] | 1645 | SMLoc Start = Tok.getLoc(), End; |
Chad Rosier | ae7ecd6 | 2013-04-11 23:37:34 +0000 | [diff] [blame] | 1646 | StringRef Identifier = Tok.getString(); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1647 | if (ParseIntelInlineAsmIdentifier(Val, Identifier, Info, |
| 1648 | /*Unevaluated=*/false, End)) |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1649 | return nullptr; |
Chad Rosier | ae7ecd6 | 2013-04-11 23:37:34 +0000 | [diff] [blame] | 1650 | |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1651 | void *Decl = nullptr; |
| 1652 | // FIXME: MS evaluates "offset <Constant>" to the underlying integral |
| 1653 | if (Info.isKind(InlineAsmIdentifierInfo::IK_EnumVal)) |
| 1654 | return ErrorOperand(Start, "offset operator cannot yet handle constants"); |
| 1655 | else if (Info.isKind(InlineAsmIdentifierInfo::IK_Var)) |
| 1656 | Decl = Info.Var.Decl; |
Chad Rosier | e2f0377 | 2012-10-26 16:09:20 +0000 | [diff] [blame] | 1657 | // Don't emit the offset operator. |
Craig Topper | 7d5b231 | 2015-10-10 05:25:02 +0000 | [diff] [blame] | 1658 | InstInfo->AsmRewrites->emplace_back(AOK_Skip, OffsetOfLoc, 7); |
Chad Rosier | e2f0377 | 2012-10-26 16:09:20 +0000 | [diff] [blame] | 1659 | |
Chad Rosier | 91c8266 | 2012-10-24 17:22:29 +0000 | [diff] [blame] | 1660 | // The offset operator will have an 'r' constraint, thus we need to create |
| 1661 | // register operand to ensure proper matching. Just pick a GPR based on |
| 1662 | // the size of a pointer. |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 1663 | bool Parse32 = is32BitMode() || Code16GCC; |
| 1664 | unsigned RegNo = is64BitMode() ? X86::RBX : (Parse32 ? X86::EBX : X86::BX); |
| 1665 | |
Chad Rosier | a4bc943 | 2013-01-10 22:10:27 +0000 | [diff] [blame] | 1666 | return X86Operand::CreateReg(RegNo, Start, End, /*GetAddress=*/true, |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1667 | OffsetOfLoc, Identifier, Decl); |
Devang Patel | 41b9dde | 2012-01-17 18:00:18 +0000 | [diff] [blame] | 1668 | } |
| 1669 | |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1670 | // Query a candidate string for being an Intel assembly operator |
| 1671 | // Report back its kind, or IOK_INVALID if does not evaluated as a known one |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1672 | unsigned X86AsmParser::IdentifyIntelInlineAsmOperator(StringRef Name) { |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1673 | return StringSwitch<unsigned>(Name) |
| 1674 | .Cases("TYPE","type",IOK_TYPE) |
| 1675 | .Cases("SIZE","size",IOK_SIZE) |
| 1676 | .Cases("LENGTH","length",IOK_LENGTH) |
| 1677 | .Cases("OFFSET","offset",IOK_OFFSET) |
| 1678 | .Default(IOK_INVALID); |
| 1679 | } |
Chad Rosier | d0ed73a | 2013-01-17 19:21:48 +0000 | [diff] [blame] | 1680 | |
| 1681 | /// Parse the 'LENGTH', 'TYPE' and 'SIZE' operators. The LENGTH operator |
| 1682 | /// returns the number of elements in an array. It returns the value 1 for |
| 1683 | /// non-array variables. The SIZE operator returns the size of a C or C++ |
| 1684 | /// variable. A variable's size is the product of its LENGTH and TYPE. The |
| 1685 | /// TYPE operator returns the size of a C or C++ type or variable. If the |
| 1686 | /// variable is an array, TYPE returns the size of a single element. |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1687 | unsigned X86AsmParser::ParseIntelInlineAsmOperator(unsigned OpKind) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1688 | MCAsmParser &Parser = getParser(); |
Chad Rosier | 1878585 | 2013-04-09 20:58:48 +0000 | [diff] [blame] | 1689 | const AsmToken &Tok = Parser.getTok(); |
Chad Rosier | 10d1d1c | 2013-04-09 20:44:09 +0000 | [diff] [blame] | 1690 | Parser.Lex(); // Eat operator. |
Chad Rosier | 11c42f2 | 2012-10-26 18:04:20 +0000 | [diff] [blame] | 1691 | |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1692 | const MCExpr *Val = nullptr; |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 1693 | InlineAsmIdentifierInfo Info; |
Chad Rosier | 1878585 | 2013-04-09 20:58:48 +0000 | [diff] [blame] | 1694 | SMLoc Start = Tok.getLoc(), End; |
Chad Rosier | b67f805 | 2013-04-11 23:57:04 +0000 | [diff] [blame] | 1695 | StringRef Identifier = Tok.getString(); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1696 | if (ParseIntelInlineAsmIdentifier(Val, Identifier, Info, |
| 1697 | /*Unevaluated=*/true, End)) |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1698 | return 0; |
Benjamin Kramer | 951b15e | 2013-12-01 11:47:42 +0000 | [diff] [blame] | 1699 | |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1700 | if (!Info.isKind(InlineAsmIdentifierInfo::IK_Var)) { |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1701 | Error(Start, "unable to lookup expression"); |
| 1702 | return 0; |
| 1703 | } |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1704 | |
Chad Rosier | f6675c3 | 2013-04-22 17:01:46 +0000 | [diff] [blame] | 1705 | unsigned CVal = 0; |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 1706 | switch(OpKind) { |
| 1707 | default: llvm_unreachable("Unexpected operand kind!"); |
Coby Tayree | c3d2411 | 2017-09-29 07:02:46 +0000 | [diff] [blame] | 1708 | case IOK_LENGTH: CVal = Info.Var.Length; break; |
| 1709 | case IOK_SIZE: CVal = Info.Var.Size; break; |
| 1710 | case IOK_TYPE: CVal = Info.Var.Type; break; |
Chad Rosier | cb78f0d | 2013-04-22 19:42:15 +0000 | [diff] [blame] | 1711 | } |
Eric Christopher | adfe536 | 2017-07-25 19:22:09 +0000 | [diff] [blame] | 1712 | |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1713 | return CVal; |
Chad Rosier | 11c42f2 | 2012-10-26 18:04:20 +0000 | [diff] [blame] | 1714 | } |
| 1715 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1716 | bool X86AsmParser::ParseIntelMemoryOperandSize(unsigned &Size) { |
| 1717 | Size = StringSwitch<unsigned>(getTok().getString()) |
| 1718 | .Cases("BYTE", "byte", 8) |
| 1719 | .Cases("WORD", "word", 16) |
| 1720 | .Cases("DWORD", "dword", 32) |
Coby Tayree | 566348f | 2017-09-28 11:04:08 +0000 | [diff] [blame] | 1721 | .Cases("FLOAT", "float", 32) |
| 1722 | .Cases("LONG", "long", 32) |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1723 | .Cases("FWORD", "fword", 48) |
Coby Tayree | 566348f | 2017-09-28 11:04:08 +0000 | [diff] [blame] | 1724 | .Cases("DOUBLE", "double", 64) |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1725 | .Cases("QWORD", "qword", 64) |
| 1726 | .Cases("MMWORD","mmword", 64) |
| 1727 | .Cases("XWORD", "xword", 80) |
| 1728 | .Cases("TBYTE", "tbyte", 80) |
| 1729 | .Cases("XMMWORD", "xmmword", 128) |
| 1730 | .Cases("YMMWORD", "ymmword", 256) |
| 1731 | .Cases("ZMMWORD", "zmmword", 512) |
| 1732 | .Cases("OPAQUE", "opaque", -1U) // needs to be non-zero, but doesn't matter |
| 1733 | .Default(0); |
| 1734 | if (Size) { |
| 1735 | const AsmToken &Tok = Lex(); // Eat operand size (e.g., byte, word). |
| 1736 | if (!(Tok.getString().equals("PTR") || Tok.getString().equals("ptr"))) |
| 1737 | return Error(Tok.getLoc(), "Expected 'PTR' or 'ptr' token!"); |
| 1738 | Lex(); // Eat ptr. |
| 1739 | } |
| 1740 | return false; |
| 1741 | } |
| 1742 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1743 | std::unique_ptr<X86Operand> X86AsmParser::ParseIntelOperand() { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1744 | MCAsmParser &Parser = getParser(); |
Chad Rosier | 70f4759 | 2013-04-10 20:07:47 +0000 | [diff] [blame] | 1745 | const AsmToken &Tok = Parser.getTok(); |
David Majnemer | aa34d79 | 2013-08-27 21:56:17 +0000 | [diff] [blame] | 1746 | SMLoc Start, End; |
Chad Rosier | 91c8266 | 2012-10-24 17:22:29 +0000 | [diff] [blame] | 1747 | |
Coby Tayree | 07a8974 | 2017-03-21 19:31:55 +0000 | [diff] [blame] | 1748 | // FIXME: Offset operator |
| 1749 | // Should be handled as part of immediate expression, as other operators |
| 1750 | // Currently, only supported as a stand-alone operand |
| 1751 | if (isParsingInlineAsm()) |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1752 | if (IdentifyIntelInlineAsmOperator(Tok.getString()) == IOK_OFFSET) |
Chad Rosier | 10d1d1c | 2013-04-09 20:44:09 +0000 | [diff] [blame] | 1753 | return ParseIntelOffsetOfOperator(); |
Chad Rosier | 11c42f2 | 2012-10-26 18:04:20 +0000 | [diff] [blame] | 1754 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1755 | // Parse optional Size directive. |
| 1756 | unsigned Size; |
| 1757 | if (ParseIntelMemoryOperandSize(Size)) |
| 1758 | return nullptr; |
| 1759 | bool PtrInOperand = bool(Size); |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1760 | |
David Majnemer | aa34d79 | 2013-08-27 21:56:17 +0000 | [diff] [blame] | 1761 | Start = Tok.getLoc(); |
| 1762 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1763 | // Rounding mode operand. |
Akira Hatanaka | bd9fc28 | 2015-11-14 05:20:05 +0000 | [diff] [blame] | 1764 | if (getSTI().getFeatureBits()[X86::FeatureAVX512] && |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1765 | getLexer().is(AsmToken::LCurly)) |
| 1766 | return ParseRoundingModeOp(Start, End); |
| 1767 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1768 | // Register operand. |
Devang Patel | ce6a2ca | 2012-01-20 22:32:05 +0000 | [diff] [blame] | 1769 | unsigned RegNo = 0; |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1770 | if (Tok.is(AsmToken::Identifier) && !ParseRegister(RegNo, Start, End)) { |
Douglas Katzman | 0411e86 | 2016-10-05 15:23:35 +0000 | [diff] [blame] | 1771 | if (RegNo == X86::RIP) |
| 1772 | return ErrorOperand(Start, "rip can only be used as a base register"); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1773 | // A Register followed by ':' is considered a segment override |
| 1774 | if (Tok.isNot(AsmToken::Colon)) |
| 1775 | return !PtrInOperand ? X86Operand::CreateReg(RegNo, Start, End) : |
| 1776 | ErrorOperand(Start, "expected memory operand after 'ptr', " |
| 1777 | "found register operand instead"); |
| 1778 | // An alleged segment override. check if we have a valid segment register |
| 1779 | if (!X86MCRegisterClasses[X86::SEGMENT_REGRegClassID].contains(RegNo)) |
| 1780 | return ErrorOperand(Start, "invalid segment register"); |
| 1781 | // Eat ':' and update Start location |
| 1782 | Start = Lex().getLoc(); |
Devang Patel | 46831de | 2012-01-12 01:36:43 +0000 | [diff] [blame] | 1783 | } |
| 1784 | |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1785 | // Immediates and Memory |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1786 | IntelExprStateMachine SM; |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1787 | if (ParseIntelExpression(SM, End)) |
| 1788 | return nullptr; |
| 1789 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1790 | if (isParsingInlineAsm()) |
| 1791 | RewriteIntelExpression(SM, Start, Tok.getLoc()); |
| 1792 | |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1793 | int64_t Imm = SM.getImm(); |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1794 | const MCExpr *Disp = SM.getSym(); |
| 1795 | const MCExpr *ImmDisp = MCConstantExpr::create(Imm, getContext()); |
| 1796 | if (Disp && Imm) |
| 1797 | Disp = MCBinaryExpr::createAdd(Disp, ImmDisp, getContext()); |
| 1798 | if (!Disp) |
| 1799 | Disp = ImmDisp; |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1800 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1801 | // RegNo != 0 specifies a valid segment register, |
| 1802 | // and we are parsing a segment override |
| 1803 | if (!SM.isMemExpr() && !RegNo) |
| 1804 | return X86Operand::CreateImm(Disp, Start, End); |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1805 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1806 | StringRef ErrMsg; |
| 1807 | unsigned BaseReg = SM.getBaseReg(); |
| 1808 | unsigned IndexReg = SM.getIndexReg(); |
| 1809 | unsigned Scale = SM.getScale(); |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1810 | |
Coby Tayree | d891289 | 2017-08-24 08:46:25 +0000 | [diff] [blame] | 1811 | if ((BaseReg || IndexReg) && |
| 1812 | CheckBaseRegAndIndexRegAndScale(BaseReg, IndexReg, Scale, ErrMsg)) |
| 1813 | return ErrorOperand(Start, ErrMsg); |
| 1814 | if (isParsingInlineAsm()) |
| 1815 | return CreateMemForInlineAsm(RegNo, Disp, BaseReg, IndexReg, |
| 1816 | Scale, Start, End, Size, SM.getSymName(), |
| 1817 | SM.getIdentifierInfo()); |
| 1818 | if (!(BaseReg || IndexReg || RegNo)) |
| 1819 | return X86Operand::CreateMem(getPointerWidth(), Disp, Start, End, Size); |
| 1820 | return X86Operand::CreateMem(getPointerWidth(), RegNo, Disp, |
| 1821 | BaseReg, IndexReg, Scale, Start, End, Size); |
Devang Patel | 46831de | 2012-01-12 01:36:43 +0000 | [diff] [blame] | 1822 | } |
| 1823 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1824 | std::unique_ptr<X86Operand> X86AsmParser::ParseATTOperand() { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1825 | MCAsmParser &Parser = getParser(); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1826 | switch (getLexer().getKind()) { |
| 1827 | default: |
Chris Lattner | b927073 | 2010-04-17 18:56:34 +0000 | [diff] [blame] | 1828 | // Parse a memory operand with no segment register. |
| 1829 | return ParseMemOperand(0, Parser.getTok().getLoc()); |
Chris Lattner | cc2ad08 | 2010-01-15 18:27:19 +0000 | [diff] [blame] | 1830 | case AsmToken::Percent: { |
Chris Lattner | b927073 | 2010-04-17 18:56:34 +0000 | [diff] [blame] | 1831 | // Read the register. |
Chris Lattner | cc2ad08 | 2010-01-15 18:27:19 +0000 | [diff] [blame] | 1832 | unsigned RegNo; |
Chris Lattner | 0c2538f | 2010-01-15 18:51:29 +0000 | [diff] [blame] | 1833 | SMLoc Start, End; |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1834 | if (ParseRegister(RegNo, Start, End)) return nullptr; |
Bruno Cardoso Lopes | 306a1f9 | 2010-07-24 00:06:39 +0000 | [diff] [blame] | 1835 | if (RegNo == X86::EIZ || RegNo == X86::RIZ) { |
Benjamin Kramer | 1930b00 | 2011-10-16 12:10:27 +0000 | [diff] [blame] | 1836 | Error(Start, "%eiz and %riz can only be used as index registers", |
| 1837 | SMRange(Start, End)); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1838 | return nullptr; |
Bruno Cardoso Lopes | 306a1f9 | 2010-07-24 00:06:39 +0000 | [diff] [blame] | 1839 | } |
Douglas Katzman | 0411e86 | 2016-10-05 15:23:35 +0000 | [diff] [blame] | 1840 | if (RegNo == X86::RIP) { |
| 1841 | Error(Start, "%rip can only be used as a base register", |
| 1842 | SMRange(Start, End)); |
| 1843 | return nullptr; |
| 1844 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1845 | |
Chris Lattner | b927073 | 2010-04-17 18:56:34 +0000 | [diff] [blame] | 1846 | // If this is a segment register followed by a ':', then this is the start |
| 1847 | // of a memory reference, otherwise this is a normal register reference. |
| 1848 | if (getLexer().isNot(AsmToken::Colon)) |
| 1849 | return X86Operand::CreateReg(RegNo, Start, End); |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1850 | |
Reid Kleckner | 0c5da97 | 2014-07-31 23:03:22 +0000 | [diff] [blame] | 1851 | if (!X86MCRegisterClasses[X86::SEGMENT_REGRegClassID].contains(RegNo)) |
| 1852 | return ErrorOperand(Start, "invalid segment register"); |
| 1853 | |
Chris Lattner | b927073 | 2010-04-17 18:56:34 +0000 | [diff] [blame] | 1854 | getParser().Lex(); // Eat the colon. |
| 1855 | return ParseMemOperand(RegNo, Start); |
Chris Lattner | cc2ad08 | 2010-01-15 18:27:19 +0000 | [diff] [blame] | 1856 | } |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1857 | case AsmToken::Dollar: { |
| 1858 | // $42 -> immediate. |
Sean Callanan | 936b0d3 | 2010-01-19 21:44:56 +0000 | [diff] [blame] | 1859 | SMLoc Start = Parser.getTok().getLoc(), End; |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 1860 | Parser.Lex(); |
Daniel Dunbar | 73da11e | 2009-08-31 08:08:38 +0000 | [diff] [blame] | 1861 | const MCExpr *Val; |
Jim Grosbach | d2037eb | 2013-02-20 22:21:35 +0000 | [diff] [blame] | 1862 | if (getParser().parseExpression(Val, End)) |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1863 | return nullptr; |
Chris Lattner | 528d00b | 2010-01-15 19:28:38 +0000 | [diff] [blame] | 1864 | return X86Operand::CreateImm(Val, Start, End); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1865 | } |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1866 | case AsmToken::LCurly:{ |
| 1867 | SMLoc Start = Parser.getTok().getLoc(), End; |
Akira Hatanaka | bd9fc28 | 2015-11-14 05:20:05 +0000 | [diff] [blame] | 1868 | if (getSTI().getFeatureBits()[X86::FeatureAVX512]) |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1869 | return ParseRoundingModeOp(Start, End); |
Nirav Dave | 8601ac1 | 2016-08-02 17:56:03 +0000 | [diff] [blame] | 1870 | return ErrorOperand(Start, "Unexpected '{' in expression"); |
Elena Demikhovsky | 18fd496 | 2015-03-02 15:00:34 +0000 | [diff] [blame] | 1871 | } |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1872 | } |
Daniel Dunbar | 2b11c7d | 2009-07-20 20:01:54 +0000 | [diff] [blame] | 1873 | } |
| 1874 | |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1875 | // true on failure, false otherwise |
| 1876 | // If no {z} mark was found - Parser doesn't advance |
| 1877 | bool X86AsmParser::ParseZ(std::unique_ptr<X86Operand> &Z, |
| 1878 | const SMLoc &StartLoc) { |
| 1879 | MCAsmParser &Parser = getParser(); |
| 1880 | // Assuming we are just pass the '{' mark, quering the next token |
Coby Tayree | 179ff0e | 2016-11-20 09:31:11 +0000 | [diff] [blame] | 1881 | // Searched for {z}, but none was found. Return false, as no parsing error was |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1882 | // encountered |
| 1883 | if (!(getLexer().is(AsmToken::Identifier) && |
| 1884 | (getLexer().getTok().getIdentifier() == "z"))) |
| 1885 | return false; |
| 1886 | Parser.Lex(); // Eat z |
| 1887 | // Query and eat the '}' mark |
| 1888 | if (!getLexer().is(AsmToken::RCurly)) |
| 1889 | return Error(getLexer().getLoc(), "Expected } at this point"); |
| 1890 | Parser.Lex(); // Eat '}' |
| 1891 | // Assign Z with the {z} mark opernad |
Benjamin Kramer | fc54e35 | 2016-11-24 15:17:39 +0000 | [diff] [blame] | 1892 | Z = X86Operand::CreateToken("{z}", StartLoc); |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1893 | return false; |
| 1894 | } |
| 1895 | |
| 1896 | // true on failure, false otherwise |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1897 | bool X86AsmParser::HandleAVX512Operand(OperandVector &Operands, |
| 1898 | const MCParsedAsmOperand &Op) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1899 | MCAsmParser &Parser = getParser(); |
Akira Hatanaka | bd9fc28 | 2015-11-14 05:20:05 +0000 | [diff] [blame] | 1900 | if(getSTI().getFeatureBits()[X86::FeatureAVX512]) { |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1901 | if (getLexer().is(AsmToken::LCurly)) { |
| 1902 | // Eat "{" and mark the current place. |
| 1903 | const SMLoc consumedToken = consumeToken(); |
| 1904 | // Distinguish {1to<NUM>} from {%k<NUM>}. |
| 1905 | if(getLexer().is(AsmToken::Integer)) { |
| 1906 | // Parse memory broadcasting ({1to<NUM>}). |
| 1907 | if (getLexer().getTok().getIntVal() != 1) |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1908 | return TokError("Expected 1to<NUM> at this point"); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1909 | Parser.Lex(); // Eat "1" of 1to8 |
| 1910 | if (!getLexer().is(AsmToken::Identifier) || |
| 1911 | !getLexer().getTok().getIdentifier().startswith("to")) |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1912 | return TokError("Expected 1to<NUM> at this point"); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1913 | // Recognize only reasonable suffixes. |
| 1914 | const char *BroadcastPrimitive = |
| 1915 | StringSwitch<const char*>(getLexer().getTok().getIdentifier()) |
Robert Khasanov | bfa0131 | 2014-07-21 14:54:21 +0000 | [diff] [blame] | 1916 | .Case("to2", "{1to2}") |
| 1917 | .Case("to4", "{1to4}") |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1918 | .Case("to8", "{1to8}") |
| 1919 | .Case("to16", "{1to16}") |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1920 | .Default(nullptr); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1921 | if (!BroadcastPrimitive) |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1922 | return TokError("Invalid memory broadcast primitive."); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1923 | Parser.Lex(); // Eat "toN" of 1toN |
| 1924 | if (!getLexer().is(AsmToken::RCurly)) |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1925 | return TokError("Expected } at this point"); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1926 | Parser.Lex(); // Eat "}" |
| 1927 | Operands.push_back(X86Operand::CreateToken(BroadcastPrimitive, |
| 1928 | consumedToken)); |
| 1929 | // No AVX512 specific primitives can pass |
| 1930 | // after memory broadcasting, so return. |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1931 | return false; |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1932 | } else { |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1933 | // Parse either {k}{z}, {z}{k}, {k} or {z} |
| 1934 | // last one have no meaning, but GCC accepts it |
| 1935 | // Currently, we're just pass a '{' mark |
| 1936 | std::unique_ptr<X86Operand> Z; |
| 1937 | if (ParseZ(Z, consumedToken)) |
| 1938 | return true; |
| 1939 | // Reaching here means that parsing of the allegadly '{z}' mark yielded |
| 1940 | // no errors. |
| 1941 | // Query for the need of further parsing for a {%k<NUM>} mark |
| 1942 | if (!Z || getLexer().is(AsmToken::LCurly)) { |
Coby Tayree | 3bfb365 | 2017-08-09 12:32:05 +0000 | [diff] [blame] | 1943 | SMLoc StartLoc = Z ? consumeToken() : consumedToken; |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1944 | // Parse an op-mask register mark ({%k<NUM>}), which is now to be |
| 1945 | // expected |
Coby Tayree | 3bfb365 | 2017-08-09 12:32:05 +0000 | [diff] [blame] | 1946 | unsigned RegNo; |
Coby Tayree | 799fa2c | 2017-08-13 12:03:00 +0000 | [diff] [blame] | 1947 | SMLoc RegLoc; |
| 1948 | if (!ParseRegister(RegNo, RegLoc, StartLoc) && |
Coby Tayree | 3bfb365 | 2017-08-09 12:32:05 +0000 | [diff] [blame] | 1949 | X86MCRegisterClasses[X86::VK1RegClassID].contains(RegNo)) { |
Coby Tayree | 799fa2c | 2017-08-13 12:03:00 +0000 | [diff] [blame] | 1950 | if (RegNo == X86::K0) |
| 1951 | return Error(RegLoc, "Register k0 can't be used as write mask"); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1952 | if (!getLexer().is(AsmToken::RCurly)) |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1953 | return Error(getLexer().getLoc(), "Expected } at this point"); |
| 1954 | Operands.push_back(X86Operand::CreateToken("{", StartLoc)); |
Haojian Wu | c1cae0b | 2017-08-09 12:49:20 +0000 | [diff] [blame] | 1955 | Operands.push_back( |
| 1956 | X86Operand::CreateReg(RegNo, StartLoc, StartLoc)); |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1957 | Operands.push_back(X86Operand::CreateToken("}", consumeToken())); |
| 1958 | } else |
| 1959 | return Error(getLexer().getLoc(), |
| 1960 | "Expected an op-mask register at this point"); |
| 1961 | // {%k<NUM>} mark is found, inquire for {z} |
| 1962 | if (getLexer().is(AsmToken::LCurly) && !Z) { |
| 1963 | // Have we've found a parsing error, or found no (expected) {z} mark |
| 1964 | // - report an error |
| 1965 | if (ParseZ(Z, consumeToken()) || !Z) |
Coby Tayree | 3bfb365 | 2017-08-09 12:32:05 +0000 | [diff] [blame] | 1966 | return Error(getLexer().getLoc(), |
| 1967 | "Expected a {z} mark at this point"); |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1968 | |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1969 | } |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1970 | // '{z}' on its own is meaningless, hence should be ignored. |
| 1971 | // on the contrary - have it been accompanied by a K register, |
| 1972 | // allow it. |
| 1973 | if (Z) |
| 1974 | Operands.push_back(std::move(Z)); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1975 | } |
| 1976 | } |
| 1977 | } |
| 1978 | } |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 1979 | return false; |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 1980 | } |
| 1981 | |
Chris Lattner | b927073 | 2010-04-17 18:56:34 +0000 | [diff] [blame] | 1982 | /// ParseMemOperand: segment: disp(basereg, indexreg, scale). The '%ds:' prefix |
| 1983 | /// has already been parsed if present. |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 1984 | std::unique_ptr<X86Operand> X86AsmParser::ParseMemOperand(unsigned SegReg, |
| 1985 | SMLoc MemStart) { |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1986 | |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 1987 | MCAsmParser &Parser = getParser(); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1988 | // We have to disambiguate a parenthesized expression "(4+5)" from the start |
| 1989 | // of a memory operand with a missing displacement "(%ebx)" or "(,%eax)". The |
Chris Lattner | 807a3bc | 2010-01-24 01:07:33 +0000 | [diff] [blame] | 1990 | // only way to do this without lookahead is to eat the '(' and see what is |
| 1991 | // after it. |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 1992 | const MCExpr *Disp = MCConstantExpr::create(0, getParser().getContext()); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1993 | if (getLexer().isNot(AsmToken::LParen)) { |
Chris Lattner | e17df0b | 2010-01-15 19:39:23 +0000 | [diff] [blame] | 1994 | SMLoc ExprEnd; |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 1995 | if (getParser().parseExpression(Disp, ExprEnd)) return nullptr; |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 1996 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 1997 | // After parsing the base expression we could either have a parenthesized |
| 1998 | // memory address or not. If not, return now. If so, eat the (. |
| 1999 | if (getLexer().isNot(AsmToken::LParen)) { |
Daniel Dunbar | a4fc8d9 | 2009-07-31 22:22:54 +0000 | [diff] [blame] | 2000 | // Unless we have a segment register, treat this as an immediate. |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2001 | if (SegReg == 0) |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 2002 | return X86Operand::CreateMem(getPointerWidth(), Disp, MemStart, ExprEnd); |
| 2003 | return X86Operand::CreateMem(getPointerWidth(), SegReg, Disp, 0, 0, 1, |
| 2004 | MemStart, ExprEnd); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2005 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2006 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2007 | // Eat the '('. |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 2008 | Parser.Lex(); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2009 | } else { |
| 2010 | // Okay, we have a '('. We don't know if this is an expression or not, but |
| 2011 | // so we have to eat the ( to see beyond it. |
Sean Callanan | 936b0d3 | 2010-01-19 21:44:56 +0000 | [diff] [blame] | 2012 | SMLoc LParenLoc = Parser.getTok().getLoc(); |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 2013 | Parser.Lex(); // Eat the '('. |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2014 | |
Kevin Enderby | 7d91218 | 2009-09-03 17:15:07 +0000 | [diff] [blame] | 2015 | if (getLexer().is(AsmToken::Percent) || getLexer().is(AsmToken::Comma)) { |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2016 | // Nothing to do here, fall into the code below with the '(' part of the |
| 2017 | // memory operand consumed. |
| 2018 | } else { |
Chris Lattner | 528d00b | 2010-01-15 19:28:38 +0000 | [diff] [blame] | 2019 | SMLoc ExprEnd; |
Konstantin Belochapka | 3477711 | 2017-09-22 23:37:48 +0000 | [diff] [blame] | 2020 | getLexer().UnLex(AsmToken(AsmToken::LParen, "(")); |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2021 | |
Konstantin Belochapka | 3477711 | 2017-09-22 23:37:48 +0000 | [diff] [blame] | 2022 | // It must be either an parenthesized expression, or an expression that |
| 2023 | // begins from a parenthesized expression, parse it now. Example: (1+2) or |
| 2024 | // (1+2)+3 |
| 2025 | if (getParser().parseExpression(Disp, ExprEnd)) |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2026 | return nullptr; |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2027 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2028 | // After parsing the base expression we could either have a parenthesized |
| 2029 | // memory address or not. If not, return now. If so, eat the (. |
| 2030 | if (getLexer().isNot(AsmToken::LParen)) { |
Daniel Dunbar | a4fc8d9 | 2009-07-31 22:22:54 +0000 | [diff] [blame] | 2031 | // Unless we have a segment register, treat this as an immediate. |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2032 | if (SegReg == 0) |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 2033 | return X86Operand::CreateMem(getPointerWidth(), Disp, LParenLoc, |
| 2034 | ExprEnd); |
| 2035 | return X86Operand::CreateMem(getPointerWidth(), SegReg, Disp, 0, 0, 1, |
| 2036 | MemStart, ExprEnd); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2037 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2038 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2039 | // Eat the '('. |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 2040 | Parser.Lex(); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2041 | } |
| 2042 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2043 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2044 | // If we reached here, then we just ate the ( of the memory operand. Process |
| 2045 | // the rest of the memory operand. |
Daniel Dunbar | 3ebf848 | 2009-07-31 20:53:16 +0000 | [diff] [blame] | 2046 | unsigned BaseReg = 0, IndexReg = 0, Scale = 1; |
David Woodhouse | 6dbda44 | 2014-01-08 12:58:28 +0000 | [diff] [blame] | 2047 | SMLoc IndexLoc, BaseLoc; |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2048 | |
Chris Lattner | 0c2538f | 2010-01-15 18:51:29 +0000 | [diff] [blame] | 2049 | if (getLexer().is(AsmToken::Percent)) { |
Benjamin Kramer | 1930b00 | 2011-10-16 12:10:27 +0000 | [diff] [blame] | 2050 | SMLoc StartLoc, EndLoc; |
David Woodhouse | 6dbda44 | 2014-01-08 12:58:28 +0000 | [diff] [blame] | 2051 | BaseLoc = Parser.getTok().getLoc(); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2052 | if (ParseRegister(BaseReg, StartLoc, EndLoc)) return nullptr; |
Bruno Cardoso Lopes | 306a1f9 | 2010-07-24 00:06:39 +0000 | [diff] [blame] | 2053 | if (BaseReg == X86::EIZ || BaseReg == X86::RIZ) { |
Benjamin Kramer | 1930b00 | 2011-10-16 12:10:27 +0000 | [diff] [blame] | 2054 | Error(StartLoc, "eiz and riz can only be used as index registers", |
| 2055 | SMRange(StartLoc, EndLoc)); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2056 | return nullptr; |
Bruno Cardoso Lopes | 306a1f9 | 2010-07-24 00:06:39 +0000 | [diff] [blame] | 2057 | } |
Chris Lattner | 0c2538f | 2010-01-15 18:51:29 +0000 | [diff] [blame] | 2058 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2059 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2060 | if (getLexer().is(AsmToken::Comma)) { |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 2061 | Parser.Lex(); // Eat the comma. |
Kevin Enderby | fb3110b | 2012-03-12 21:32:09 +0000 | [diff] [blame] | 2062 | IndexLoc = Parser.getTok().getLoc(); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2063 | |
| 2064 | // Following the comma we should have either an index register, or a scale |
| 2065 | // value. We don't support the later form, but we want to parse it |
| 2066 | // correctly. |
| 2067 | // |
| 2068 | // Not that even though it would be completely consistent to support syntax |
Bruno Cardoso Lopes | 306a1f9 | 2010-07-24 00:06:39 +0000 | [diff] [blame] | 2069 | // like "1(%eax,,1)", the assembler doesn't. Use "eiz" or "riz" for this. |
Kevin Enderby | 7d91218 | 2009-09-03 17:15:07 +0000 | [diff] [blame] | 2070 | if (getLexer().is(AsmToken::Percent)) { |
Chris Lattner | 0c2538f | 2010-01-15 18:51:29 +0000 | [diff] [blame] | 2071 | SMLoc L; |
Douglas Katzman | 0411e86 | 2016-10-05 15:23:35 +0000 | [diff] [blame] | 2072 | if (ParseRegister(IndexReg, L, L)) |
| 2073 | return nullptr; |
| 2074 | if (BaseReg == X86::RIP) { |
| 2075 | Error(IndexLoc, "%rip as base register can not have an index register"); |
| 2076 | return nullptr; |
| 2077 | } |
| 2078 | if (IndexReg == X86::RIP) { |
| 2079 | Error(IndexLoc, "%rip is not allowed as an index register"); |
| 2080 | return nullptr; |
| 2081 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2082 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2083 | if (getLexer().isNot(AsmToken::RParen)) { |
| 2084 | // Parse the scale amount: |
| 2085 | // ::= ',' [scale-expression] |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2086 | if (getLexer().isNot(AsmToken::Comma)) { |
Sean Callanan | 936b0d3 | 2010-01-19 21:44:56 +0000 | [diff] [blame] | 2087 | Error(Parser.getTok().getLoc(), |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2088 | "expected comma in scale expression"); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2089 | return nullptr; |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2090 | } |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 2091 | Parser.Lex(); // Eat the comma. |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2092 | |
| 2093 | if (getLexer().isNot(AsmToken::RParen)) { |
Sean Callanan | 936b0d3 | 2010-01-19 21:44:56 +0000 | [diff] [blame] | 2094 | SMLoc Loc = Parser.getTok().getLoc(); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2095 | |
| 2096 | int64_t ScaleVal; |
Jim Grosbach | d2037eb | 2013-02-20 22:21:35 +0000 | [diff] [blame] | 2097 | if (getParser().parseAbsoluteExpression(ScaleVal)){ |
Kevin Enderby | deed5aa | 2012-03-09 22:24:10 +0000 | [diff] [blame] | 2098 | Error(Loc, "expected scale expression"); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2099 | return nullptr; |
Craig Topper | 6bf3ed4 | 2012-07-18 04:59:16 +0000 | [diff] [blame] | 2100 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2101 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2102 | // Validate the scale amount. |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 2103 | if (X86MCRegisterClasses[X86::GR16RegClassID].contains(BaseReg) && |
David Woodhouse | 6dbda44 | 2014-01-08 12:58:28 +0000 | [diff] [blame] | 2104 | ScaleVal != 1) { |
| 2105 | Error(Loc, "scale factor in 16-bit address must be 1"); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2106 | return nullptr; |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 2107 | } |
| 2108 | if (ScaleVal != 1 && ScaleVal != 2 && ScaleVal != 4 && |
| 2109 | ScaleVal != 8) { |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2110 | Error(Loc, "scale factor in address must be 1, 2, 4 or 8"); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2111 | return nullptr; |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2112 | } |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2113 | Scale = (unsigned)ScaleVal; |
| 2114 | } |
| 2115 | } |
| 2116 | } else if (getLexer().isNot(AsmToken::RParen)) { |
Daniel Dunbar | 94b84a1 | 2010-08-24 19:13:38 +0000 | [diff] [blame] | 2117 | // A scale amount without an index is ignored. |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2118 | // index. |
Sean Callanan | 936b0d3 | 2010-01-19 21:44:56 +0000 | [diff] [blame] | 2119 | SMLoc Loc = Parser.getTok().getLoc(); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2120 | |
| 2121 | int64_t Value; |
Jim Grosbach | d2037eb | 2013-02-20 22:21:35 +0000 | [diff] [blame] | 2122 | if (getParser().parseAbsoluteExpression(Value)) |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2123 | return nullptr; |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2124 | |
Daniel Dunbar | 94b84a1 | 2010-08-24 19:13:38 +0000 | [diff] [blame] | 2125 | if (Value != 1) |
| 2126 | Warning(Loc, "scale factor without index register is ignored"); |
| 2127 | Scale = 1; |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2128 | } |
| 2129 | } |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2130 | |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2131 | // Ok, we've eaten the memory operand, verify we have a ')' and eat it too. |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2132 | if (getLexer().isNot(AsmToken::RParen)) { |
Sean Callanan | 936b0d3 | 2010-01-19 21:44:56 +0000 | [diff] [blame] | 2133 | Error(Parser.getTok().getLoc(), "unexpected token in memory operand"); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2134 | return nullptr; |
Chris Lattner | a2bbb7c | 2010-01-15 18:44:13 +0000 | [diff] [blame] | 2135 | } |
Jordan Rose | e8f1eae | 2013-01-07 19:00:49 +0000 | [diff] [blame] | 2136 | SMLoc MemEnd = Parser.getTok().getEndLoc(); |
Sean Callanan | a83fd7d | 2010-01-19 20:27:46 +0000 | [diff] [blame] | 2137 | Parser.Lex(); // Eat the ')'. |
Bruno Cardoso Lopes | d65cd1d | 2010-07-23 22:15:26 +0000 | [diff] [blame] | 2138 | |
David Woodhouse | 6dbda44 | 2014-01-08 12:58:28 +0000 | [diff] [blame] | 2139 | // Check for use of invalid 16-bit registers. Only BX/BP/SI/DI are allowed, |
| 2140 | // and then only in non-64-bit modes. Except for DX, which is a special case |
| 2141 | // because an unofficial form of in/out instructions uses it. |
| 2142 | if (X86MCRegisterClasses[X86::GR16RegClassID].contains(BaseReg) && |
| 2143 | (is64BitMode() || (BaseReg != X86::BX && BaseReg != X86::BP && |
| 2144 | BaseReg != X86::SI && BaseReg != X86::DI)) && |
| 2145 | BaseReg != X86::DX) { |
| 2146 | Error(BaseLoc, "invalid 16-bit base register"); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2147 | return nullptr; |
David Woodhouse | 6dbda44 | 2014-01-08 12:58:28 +0000 | [diff] [blame] | 2148 | } |
| 2149 | if (BaseReg == 0 && |
| 2150 | X86MCRegisterClasses[X86::GR16RegClassID].contains(IndexReg)) { |
| 2151 | Error(IndexLoc, "16-bit memory operand may not include only index register"); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2152 | return nullptr; |
David Woodhouse | 6dbda44 | 2014-01-08 12:58:28 +0000 | [diff] [blame] | 2153 | } |
Kevin Enderby | bc570f2 | 2014-01-23 22:34:42 +0000 | [diff] [blame] | 2154 | |
| 2155 | StringRef ErrMsg; |
Andrew V. Tischenko | 32e9b1a | 2017-07-25 13:05:12 +0000 | [diff] [blame] | 2156 | if (CheckBaseRegAndIndexRegAndScale(BaseReg, IndexReg, Scale, ErrMsg)) { |
Kevin Enderby | bc570f2 | 2014-01-23 22:34:42 +0000 | [diff] [blame] | 2157 | Error(BaseLoc, ErrMsg); |
Craig Topper | 062a2ba | 2014-04-25 05:30:21 +0000 | [diff] [blame] | 2158 | return nullptr; |
Kevin Enderby | fb3110b | 2012-03-12 21:32:09 +0000 | [diff] [blame] | 2159 | } |
| 2160 | |
Reid Kleckner | b7e2f60 | 2014-07-31 23:26:35 +0000 | [diff] [blame] | 2161 | if (SegReg || BaseReg || IndexReg) |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 2162 | return X86Operand::CreateMem(getPointerWidth(), SegReg, Disp, BaseReg, |
| 2163 | IndexReg, Scale, MemStart, MemEnd); |
| 2164 | return X86Operand::CreateMem(getPointerWidth(), Disp, MemStart, MemEnd); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2165 | } |
| 2166 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2167 | bool X86AsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name, |
| 2168 | SMLoc NameLoc, OperandVector &Operands) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 2169 | MCAsmParser &Parser = getParser(); |
Chad Rosier | f0e8720 | 2012-10-25 20:41:34 +0000 | [diff] [blame] | 2170 | InstInfo = &Info; |
Chris Lattner | 2cb092d | 2010-10-30 19:23:13 +0000 | [diff] [blame] | 2171 | StringRef PatchedName = Name; |
Daniel Dunbar | 0e767d7 | 2010-05-25 19:49:32 +0000 | [diff] [blame] | 2172 | |
Coby Tayree | 48d67cd | 2017-07-30 11:12:47 +0000 | [diff] [blame] | 2173 | if ((Name.equals("jmp") || Name.equals("jc") || Name.equals("jz")) && |
| 2174 | isParsingIntelSyntax() && isParsingInlineAsm()) { |
Michael Zuckerman | 174d2e7 | 2016-10-14 08:09:40 +0000 | [diff] [blame] | 2175 | StringRef NextTok = Parser.getTok().getString(); |
| 2176 | if (NextTok == "short") { |
| 2177 | SMLoc NameEndLoc = |
| 2178 | NameLoc.getFromPointer(NameLoc.getPointer() + Name.size()); |
| 2179 | // Eat the short keyword |
| 2180 | Parser.Lex(); |
| 2181 | // MS ignores the short keyword, it determines the jmp type based |
| 2182 | // on the distance of the label |
| 2183 | InstInfo->AsmRewrites->emplace_back(AOK_Skip, NameEndLoc, |
| 2184 | NextTok.size() + 1); |
| 2185 | } |
| 2186 | } |
| 2187 | |
Chris Lattner | 7e8a99b | 2010-11-28 20:23:50 +0000 | [diff] [blame] | 2188 | // FIXME: Hack to recognize setneb as setne. |
| 2189 | if (PatchedName.startswith("set") && PatchedName.endswith("b") && |
| 2190 | PatchedName != "setb" && PatchedName != "setnb") |
| 2191 | PatchedName = PatchedName.substr(0, Name.size()-1); |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 2192 | |
Daniel Dunbar | 0e767d7 | 2010-05-25 19:49:32 +0000 | [diff] [blame] | 2193 | // FIXME: Hack to recognize cmp<comparison code>{ss,sd,ps,pd}. |
Bruno Cardoso Lopes | 3183dd5 | 2010-06-23 21:10:57 +0000 | [diff] [blame] | 2194 | if ((PatchedName.startswith("cmp") || PatchedName.startswith("vcmp")) && |
Daniel Dunbar | 0e767d7 | 2010-05-25 19:49:32 +0000 | [diff] [blame] | 2195 | (PatchedName.endswith("ss") || PatchedName.endswith("sd") || |
| 2196 | PatchedName.endswith("ps") || PatchedName.endswith("pd"))) { |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2197 | bool IsVCMP = PatchedName[0] == 'v'; |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2198 | unsigned CCIdx = IsVCMP ? 4 : 3; |
| 2199 | unsigned ComparisonCode = StringSwitch<unsigned>( |
| 2200 | PatchedName.slice(CCIdx, PatchedName.size() - 2)) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2201 | .Case("eq", 0x00) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2202 | .Case("eq_oq", 0x00) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2203 | .Case("lt", 0x01) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2204 | .Case("lt_os", 0x01) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2205 | .Case("le", 0x02) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2206 | .Case("le_os", 0x02) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2207 | .Case("unord", 0x03) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2208 | .Case("unord_q", 0x03) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2209 | .Case("neq", 0x04) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2210 | .Case("neq_uq", 0x04) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2211 | .Case("nlt", 0x05) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2212 | .Case("nlt_us", 0x05) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2213 | .Case("nle", 0x06) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2214 | .Case("nle_us", 0x06) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2215 | .Case("ord", 0x07) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2216 | .Case("ord_q", 0x07) |
Craig Topper | a0a603e | 2012-03-29 07:11:23 +0000 | [diff] [blame] | 2217 | /* AVX only from here */ |
| 2218 | .Case("eq_uq", 0x08) |
| 2219 | .Case("nge", 0x09) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2220 | .Case("nge_us", 0x09) |
Bruno Cardoso Lopes | 6c61451 | 2010-07-07 22:24:03 +0000 | [diff] [blame] | 2221 | .Case("ngt", 0x0A) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2222 | .Case("ngt_us", 0x0A) |
Bruno Cardoso Lopes | 6c61451 | 2010-07-07 22:24:03 +0000 | [diff] [blame] | 2223 | .Case("false", 0x0B) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2224 | .Case("false_oq", 0x0B) |
Bruno Cardoso Lopes | 6c61451 | 2010-07-07 22:24:03 +0000 | [diff] [blame] | 2225 | .Case("neq_oq", 0x0C) |
| 2226 | .Case("ge", 0x0D) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2227 | .Case("ge_os", 0x0D) |
Bruno Cardoso Lopes | 6c61451 | 2010-07-07 22:24:03 +0000 | [diff] [blame] | 2228 | .Case("gt", 0x0E) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2229 | .Case("gt_os", 0x0E) |
Bruno Cardoso Lopes | 6c61451 | 2010-07-07 22:24:03 +0000 | [diff] [blame] | 2230 | .Case("true", 0x0F) |
Michael Zuckerman | 72b7223 | 2016-01-25 08:43:26 +0000 | [diff] [blame] | 2231 | .Case("true_uq", 0x0F) |
Bruno Cardoso Lopes | 6c61451 | 2010-07-07 22:24:03 +0000 | [diff] [blame] | 2232 | .Case("eq_os", 0x10) |
| 2233 | .Case("lt_oq", 0x11) |
| 2234 | .Case("le_oq", 0x12) |
| 2235 | .Case("unord_s", 0x13) |
| 2236 | .Case("neq_us", 0x14) |
| 2237 | .Case("nlt_uq", 0x15) |
| 2238 | .Case("nle_uq", 0x16) |
| 2239 | .Case("ord_s", 0x17) |
| 2240 | .Case("eq_us", 0x18) |
| 2241 | .Case("nge_uq", 0x19) |
| 2242 | .Case("ngt_uq", 0x1A) |
| 2243 | .Case("false_os", 0x1B) |
| 2244 | .Case("neq_os", 0x1C) |
| 2245 | .Case("ge_oq", 0x1D) |
| 2246 | .Case("gt_oq", 0x1E) |
| 2247 | .Case("true_us", 0x1F) |
Daniel Dunbar | 0e767d7 | 2010-05-25 19:49:32 +0000 | [diff] [blame] | 2248 | .Default(~0U); |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2249 | if (ComparisonCode != ~0U && (IsVCMP || ComparisonCode < 8)) { |
Craig Topper | 4386083 | 2015-02-14 21:54:03 +0000 | [diff] [blame] | 2250 | |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2251 | Operands.push_back(X86Operand::CreateToken(PatchedName.slice(0, CCIdx), |
Craig Topper | 4386083 | 2015-02-14 21:54:03 +0000 | [diff] [blame] | 2252 | NameLoc)); |
| 2253 | |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 2254 | const MCExpr *ImmOp = MCConstantExpr::create(ComparisonCode, |
Craig Topper | 4386083 | 2015-02-14 21:54:03 +0000 | [diff] [blame] | 2255 | getParser().getContext()); |
| 2256 | Operands.push_back(X86Operand::CreateImm(ImmOp, NameLoc, NameLoc)); |
| 2257 | |
| 2258 | PatchedName = PatchedName.substr(PatchedName.size() - 2); |
Daniel Dunbar | 0e767d7 | 2010-05-25 19:49:32 +0000 | [diff] [blame] | 2259 | } |
| 2260 | } |
Bruno Cardoso Lopes | ea0e05a | 2010-07-23 18:41:12 +0000 | [diff] [blame] | 2261 | |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2262 | // FIXME: Hack to recognize vpcmp<comparison code>{ub,uw,ud,uq,b,w,d,q}. |
| 2263 | if (PatchedName.startswith("vpcmp") && |
| 2264 | (PatchedName.endswith("b") || PatchedName.endswith("w") || |
| 2265 | PatchedName.endswith("d") || PatchedName.endswith("q"))) { |
| 2266 | unsigned CCIdx = PatchedName.drop_back().back() == 'u' ? 2 : 1; |
| 2267 | unsigned ComparisonCode = StringSwitch<unsigned>( |
| 2268 | PatchedName.slice(5, PatchedName.size() - CCIdx)) |
| 2269 | .Case("eq", 0x0) // Only allowed on unsigned. Checked below. |
| 2270 | .Case("lt", 0x1) |
| 2271 | .Case("le", 0x2) |
| 2272 | //.Case("false", 0x3) // Not a documented alias. |
| 2273 | .Case("neq", 0x4) |
| 2274 | .Case("nlt", 0x5) |
| 2275 | .Case("nle", 0x6) |
| 2276 | //.Case("true", 0x7) // Not a documented alias. |
| 2277 | .Default(~0U); |
| 2278 | if (ComparisonCode != ~0U && (ComparisonCode != 0 || CCIdx == 2)) { |
| 2279 | Operands.push_back(X86Operand::CreateToken("vpcmp", NameLoc)); |
| 2280 | |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 2281 | const MCExpr *ImmOp = MCConstantExpr::create(ComparisonCode, |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2282 | getParser().getContext()); |
| 2283 | Operands.push_back(X86Operand::CreateImm(ImmOp, NameLoc, NameLoc)); |
| 2284 | |
| 2285 | PatchedName = PatchedName.substr(PatchedName.size() - CCIdx); |
| 2286 | } |
| 2287 | } |
| 2288 | |
Craig Topper | 916708f | 2015-02-13 07:42:25 +0000 | [diff] [blame] | 2289 | // FIXME: Hack to recognize vpcom<comparison code>{ub,uw,ud,uq,b,w,d,q}. |
| 2290 | if (PatchedName.startswith("vpcom") && |
| 2291 | (PatchedName.endswith("b") || PatchedName.endswith("w") || |
| 2292 | PatchedName.endswith("d") || PatchedName.endswith("q"))) { |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2293 | unsigned CCIdx = PatchedName.drop_back().back() == 'u' ? 2 : 1; |
| 2294 | unsigned ComparisonCode = StringSwitch<unsigned>( |
| 2295 | PatchedName.slice(5, PatchedName.size() - CCIdx)) |
Craig Topper | 916708f | 2015-02-13 07:42:25 +0000 | [diff] [blame] | 2296 | .Case("lt", 0x0) |
| 2297 | .Case("le", 0x1) |
| 2298 | .Case("gt", 0x2) |
| 2299 | .Case("ge", 0x3) |
| 2300 | .Case("eq", 0x4) |
| 2301 | .Case("neq", 0x5) |
| 2302 | .Case("false", 0x6) |
| 2303 | .Case("true", 0x7) |
| 2304 | .Default(~0U); |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2305 | if (ComparisonCode != ~0U) { |
Craig Topper | 916708f | 2015-02-13 07:42:25 +0000 | [diff] [blame] | 2306 | Operands.push_back(X86Operand::CreateToken("vpcom", NameLoc)); |
| 2307 | |
Jim Grosbach | 13760bd | 2015-05-30 01:25:56 +0000 | [diff] [blame] | 2308 | const MCExpr *ImmOp = MCConstantExpr::create(ComparisonCode, |
Craig Topper | 916708f | 2015-02-13 07:42:25 +0000 | [diff] [blame] | 2309 | getParser().getContext()); |
| 2310 | Operands.push_back(X86Operand::CreateImm(ImmOp, NameLoc, NameLoc)); |
| 2311 | |
Craig Topper | 78c424d | 2015-02-15 07:13:48 +0000 | [diff] [blame] | 2312 | PatchedName = PatchedName.substr(PatchedName.size() - CCIdx); |
Craig Topper | 916708f | 2015-02-13 07:42:25 +0000 | [diff] [blame] | 2313 | } |
| 2314 | } |
| 2315 | |
Daniel Dunbar | 3e0c979 | 2010-02-10 21:19:28 +0000 | [diff] [blame] | 2316 | Operands.push_back(X86Operand::CreateToken(PatchedName, NameLoc)); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2317 | |
Chris Lattner | 086a83a | 2010-09-08 05:17:37 +0000 | [diff] [blame] | 2318 | // Determine whether this is an instruction prefix. |
Coby Tayree | c54c5cb | 2017-08-21 07:50:15 +0000 | [diff] [blame] | 2319 | // FIXME: |
Craig Topper | 0768bce | 2017-09-26 21:35:04 +0000 | [diff] [blame] | 2320 | // Enhance prefixes integrity robustness. for example, following forms |
Coby Tayree | c54c5cb | 2017-08-21 07:50:15 +0000 | [diff] [blame] | 2321 | // are currently tolerated: |
| 2322 | // repz repnz <insn> ; GAS errors for the use of two similar prefixes |
| 2323 | // lock addq %rax, %rbx ; Destination operand must be of memory type |
| 2324 | // xacquire <insn> ; xacquire must be accompanied by 'lock' |
| 2325 | bool isPrefix = StringSwitch<bool>(Name) |
| 2326 | .Cases("lock", |
| 2327 | "rep", "repe", |
| 2328 | "repz", "repne", |
| 2329 | "repnz", "rex64", |
| 2330 | "data32", "data16", true) |
| 2331 | .Cases("xacquire", "xrelease", true) |
| 2332 | .Cases("acquire", "release", isParsingIntelSyntax()) |
| 2333 | .Default(false); |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2334 | |
Marina Yatsina | 5f5de9f | 2016-03-07 18:11:16 +0000 | [diff] [blame] | 2335 | bool CurlyAsEndOfStatement = false; |
Chris Lattner | 086a83a | 2010-09-08 05:17:37 +0000 | [diff] [blame] | 2336 | // This does the actual operand parsing. Don't parse any more if we have a |
| 2337 | // prefix juxtaposed with an operation like "lock incl 4(%rax)", because we |
| 2338 | // just want to parse the "lock" as the first instruction and the "incl" as |
| 2339 | // the next one. |
| 2340 | if (getLexer().isNot(AsmToken::EndOfStatement) && !isPrefix) { |
Daniel Dunbar | 71527c1 | 2009-08-11 05:00:25 +0000 | [diff] [blame] | 2341 | |
| 2342 | // Parse '*' modifier. |
Alp Toker | a5b88a5 | 2013-12-02 16:06:06 +0000 | [diff] [blame] | 2343 | if (getLexer().is(AsmToken::Star)) |
| 2344 | Operands.push_back(X86Operand::CreateToken("*", consumeToken())); |
Daniel Dunbar | 71527c1 | 2009-08-11 05:00:25 +0000 | [diff] [blame] | 2345 | |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 2346 | // Read the operands. |
Kirill Bobyrev | 6afbaf0 | 2017-01-18 16:34:25 +0000 | [diff] [blame] | 2347 | while(1) { |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2348 | if (std::unique_ptr<X86Operand> Op = ParseOperand()) { |
| 2349 | Operands.push_back(std::move(Op)); |
Michael Zuckerman | 1bee634 | 2016-10-18 13:52:39 +0000 | [diff] [blame] | 2350 | if (HandleAVX512Operand(Operands, *Operands.back())) |
Elena Demikhovsky | 8952974 | 2013-09-12 08:55:00 +0000 | [diff] [blame] | 2351 | return true; |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 2352 | } else { |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 2353 | return true; |
Elena Demikhovsky | 8952974 | 2013-09-12 08:55:00 +0000 | [diff] [blame] | 2354 | } |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 2355 | // check for comma and eat it |
| 2356 | if (getLexer().is(AsmToken::Comma)) |
| 2357 | Parser.Lex(); |
| 2358 | else |
| 2359 | break; |
| 2360 | } |
Elena Demikhovsky | 8952974 | 2013-09-12 08:55:00 +0000 | [diff] [blame] | 2361 | |
Hiroshi Inoue | e9dea6e | 2017-07-13 06:48:39 +0000 | [diff] [blame] | 2362 | // In MS inline asm curly braces mark the beginning/end of a block, |
| 2363 | // therefore they should be interepreted as end of statement |
Marina Yatsina | 5f5de9f | 2016-03-07 18:11:16 +0000 | [diff] [blame] | 2364 | CurlyAsEndOfStatement = |
| 2365 | isParsingIntelSyntax() && isParsingInlineAsm() && |
| 2366 | (getLexer().is(AsmToken::LCurly) || getLexer().is(AsmToken::RCurly)); |
| 2367 | if (getLexer().isNot(AsmToken::EndOfStatement) && !CurlyAsEndOfStatement) |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2368 | return TokError("unexpected token in argument list"); |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 2369 | } |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2370 | |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 2371 | // Consume the EndOfStatement or the prefix separator Slash |
Elena Demikhovsky | 9f09b3e | 2014-02-20 07:00:10 +0000 | [diff] [blame] | 2372 | if (getLexer().is(AsmToken::EndOfStatement) || |
| 2373 | (isPrefix && getLexer().is(AsmToken::Slash))) |
Elena Demikhovsky | c965701 | 2014-02-20 06:34:39 +0000 | [diff] [blame] | 2374 | Parser.Lex(); |
Marina Yatsina | 5f5de9f | 2016-03-07 18:11:16 +0000 | [diff] [blame] | 2375 | else if (CurlyAsEndOfStatement) |
| 2376 | // Add an actual EndOfStatement before the curly brace |
| 2377 | Info.AsmRewrites->emplace_back(AOK_EndOfStatement, |
| 2378 | getLexer().getTok().getLoc(), 0); |
Daniel Dunbar | e1fdb0e | 2009-07-28 22:40:46 +0000 | [diff] [blame] | 2379 | |
Michael Zuckerman | fd3fe9e | 2015-11-12 16:58:51 +0000 | [diff] [blame] | 2380 | // This is for gas compatibility and cannot be done in td. |
| 2381 | // Adding "p" for some floating point with no argument. |
| 2382 | // For example: fsub --> fsubp |
| 2383 | bool IsFp = |
| 2384 | Name == "fsub" || Name == "fdiv" || Name == "fsubr" || Name == "fdivr"; |
| 2385 | if (IsFp && Operands.size() == 1) { |
| 2386 | const char *Repl = StringSwitch<const char *>(Name) |
| 2387 | .Case("fsub", "fsubp") |
| 2388 | .Case("fdiv", "fdivp") |
| 2389 | .Case("fsubr", "fsubrp") |
| 2390 | .Case("fdivr", "fdivrp"); |
| 2391 | static_cast<X86Operand &>(*Operands[0]).setTokenValue(Repl); |
| 2392 | } |
| 2393 | |
Nirav Dave | f45fd2b | 2016-08-08 18:01:04 +0000 | [diff] [blame] | 2394 | // Moving a 32 or 16 bit value into a segment register has the same |
| 2395 | // behavior. Modify such instructions to always take shorter form. |
| 2396 | if ((Name == "mov" || Name == "movw" || Name == "movl") && |
| 2397 | (Operands.size() == 3)) { |
| 2398 | X86Operand &Op1 = (X86Operand &)*Operands[1]; |
| 2399 | X86Operand &Op2 = (X86Operand &)*Operands[2]; |
| 2400 | SMLoc Loc = Op1.getEndLoc(); |
| 2401 | if (Op1.isReg() && Op2.isReg() && |
| 2402 | X86MCRegisterClasses[X86::SEGMENT_REGRegClassID].contains( |
| 2403 | Op2.getReg()) && |
| 2404 | (X86MCRegisterClasses[X86::GR16RegClassID].contains(Op1.getReg()) || |
| 2405 | X86MCRegisterClasses[X86::GR32RegClassID].contains(Op1.getReg()))) { |
| 2406 | // Change instruction name to match new instruction. |
| 2407 | if (Name != "mov" && Name[3] == (is16BitMode() ? 'l' : 'w')) { |
| 2408 | Name = is16BitMode() ? "movw" : "movl"; |
| 2409 | Operands[0] = X86Operand::CreateToken(Name, NameLoc); |
| 2410 | } |
| 2411 | // Select the correct equivalent 16-/32-bit source register. |
| 2412 | unsigned Reg = |
| 2413 | getX86SubSuperRegisterOrZero(Op1.getReg(), is16BitMode() ? 16 : 32); |
| 2414 | Operands[1] = X86Operand::CreateReg(Reg, Loc, Loc); |
| 2415 | } |
| 2416 | } |
| 2417 | |
Nirav Dave | 8e10380 | 2016-06-29 19:54:27 +0000 | [diff] [blame] | 2418 | // This is a terrible hack to handle "out[s]?[bwl]? %al, (%dx)" -> |
Chris Lattner | b6f8e82 | 2010-11-06 19:25:43 +0000 | [diff] [blame] | 2419 | // "outb %al, %dx". Out doesn't take a memory form, but this is a widely |
| 2420 | // documented form in various unofficial manuals, so a lot of code uses it. |
Nirav Dave | 8e10380 | 2016-06-29 19:54:27 +0000 | [diff] [blame] | 2421 | if ((Name == "outb" || Name == "outsb" || Name == "outw" || Name == "outsw" || |
| 2422 | Name == "outl" || Name == "outsl" || Name == "out" || Name == "outs") && |
Chris Lattner | b6f8e82 | 2010-11-06 19:25:43 +0000 | [diff] [blame] | 2423 | Operands.size() == 3) { |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2424 | X86Operand &Op = (X86Operand &)*Operands.back(); |
Chris Lattner | b6f8e82 | 2010-11-06 19:25:43 +0000 | [diff] [blame] | 2425 | if (Op.isMem() && Op.Mem.SegReg == 0 && |
| 2426 | isa<MCConstantExpr>(Op.Mem.Disp) && |
| 2427 | cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 && |
| 2428 | Op.Mem.BaseReg == MatchRegisterName("dx") && Op.Mem.IndexReg == 0) { |
| 2429 | SMLoc Loc = Op.getEndLoc(); |
| 2430 | Operands.back() = X86Operand::CreateReg(Op.Mem.BaseReg, Loc, Loc); |
Chris Lattner | b6f8e82 | 2010-11-06 19:25:43 +0000 | [diff] [blame] | 2431 | } |
| 2432 | } |
Nirav Dave | 8e10380 | 2016-06-29 19:54:27 +0000 | [diff] [blame] | 2433 | // Same hack for "in[s]?[bwl]? (%dx), %al" -> "inb %dx, %al". |
| 2434 | if ((Name == "inb" || Name == "insb" || Name == "inw" || Name == "insw" || |
| 2435 | Name == "inl" || Name == "insl" || Name == "in" || Name == "ins") && |
Joerg Sonnenberger | b7e635d | 2011-02-22 20:40:09 +0000 | [diff] [blame] | 2436 | Operands.size() == 3) { |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2437 | X86Operand &Op = (X86Operand &)*Operands[1]; |
Joerg Sonnenberger | b7e635d | 2011-02-22 20:40:09 +0000 | [diff] [blame] | 2438 | if (Op.isMem() && Op.Mem.SegReg == 0 && |
| 2439 | isa<MCConstantExpr>(Op.Mem.Disp) && |
| 2440 | cast<MCConstantExpr>(Op.Mem.Disp)->getValue() == 0 && |
| 2441 | Op.Mem.BaseReg == MatchRegisterName("dx") && Op.Mem.IndexReg == 0) { |
| 2442 | SMLoc Loc = Op.getEndLoc(); |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2443 | Operands[1] = X86Operand::CreateReg(Op.Mem.BaseReg, Loc, Loc); |
Joerg Sonnenberger | b7e635d | 2011-02-22 20:40:09 +0000 | [diff] [blame] | 2444 | } |
| 2445 | } |
David Woodhouse | 4ce6606 | 2014-01-22 15:08:55 +0000 | [diff] [blame] | 2446 | |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2447 | SmallVector<std::unique_ptr<MCParsedAsmOperand>, 2> TmpOperands; |
| 2448 | bool HadVerifyError = false; |
| 2449 | |
David Woodhouse | 4ce6606 | 2014-01-22 15:08:55 +0000 | [diff] [blame] | 2450 | // Append default arguments to "ins[bwld]" |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2451 | if (Name.startswith("ins") && |
| 2452 | (Operands.size() == 1 || Operands.size() == 3) && |
| 2453 | (Name == "insb" || Name == "insw" || Name == "insl" || Name == "insd" || |
| 2454 | Name == "ins")) { |
| 2455 | |
| 2456 | AddDefaultSrcDestOperands(TmpOperands, |
Michael Kuperstein | ffcc766 | 2015-07-23 10:23:48 +0000 | [diff] [blame] | 2457 | X86Operand::CreateReg(X86::DX, NameLoc, NameLoc), |
| 2458 | DefaultMemDIOperand(NameLoc)); |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2459 | HadVerifyError = VerifyAndAdjustOperands(Operands, TmpOperands); |
Joerg Sonnenberger | 3fbfcc0 | 2011-03-18 11:59:40 +0000 | [diff] [blame] | 2460 | } |
| 2461 | |
David Woodhouse | c472b81 | 2014-01-22 15:08:49 +0000 | [diff] [blame] | 2462 | // Append default arguments to "outs[bwld]" |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2463 | if (Name.startswith("outs") && |
| 2464 | (Operands.size() == 1 || Operands.size() == 3) && |
David Woodhouse | c472b81 | 2014-01-22 15:08:49 +0000 | [diff] [blame] | 2465 | (Name == "outsb" || Name == "outsw" || Name == "outsl" || |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2466 | Name == "outsd" || Name == "outs")) { |
| 2467 | AddDefaultSrcDestOperands(TmpOperands, DefaultMemSIOperand(NameLoc), |
Michael Kuperstein | ffcc766 | 2015-07-23 10:23:48 +0000 | [diff] [blame] | 2468 | X86Operand::CreateReg(X86::DX, NameLoc, NameLoc)); |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2469 | HadVerifyError = VerifyAndAdjustOperands(Operands, TmpOperands); |
Joerg Sonnenberger | 3fbfcc0 | 2011-03-18 11:59:40 +0000 | [diff] [blame] | 2470 | } |
| 2471 | |
David Woodhouse | 2ef8d9c | 2014-01-22 15:08:08 +0000 | [diff] [blame] | 2472 | // Transform "lods[bwlq]" into "lods[bwlq] ($SIREG)" for appropriate |
| 2473 | // values of $SIREG according to the mode. It would be nice if this |
| 2474 | // could be achieved with InstAlias in the tables. |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2475 | if (Name.startswith("lods") && |
| 2476 | (Operands.size() == 1 || Operands.size() == 2) && |
Joerg Sonnenberger | 3fbfcc0 | 2011-03-18 11:59:40 +0000 | [diff] [blame] | 2477 | (Name == "lods" || Name == "lodsb" || Name == "lodsw" || |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2478 | Name == "lodsl" || Name == "lodsd" || Name == "lodsq")) { |
| 2479 | TmpOperands.push_back(DefaultMemSIOperand(NameLoc)); |
| 2480 | HadVerifyError = VerifyAndAdjustOperands(Operands, TmpOperands); |
| 2481 | } |
David Woodhouse | 2ef8d9c | 2014-01-22 15:08:08 +0000 | [diff] [blame] | 2482 | |
David Woodhouse | b33c2ef | 2014-01-22 15:08:21 +0000 | [diff] [blame] | 2483 | // Transform "stos[bwlq]" into "stos[bwlq] ($DIREG)" for appropriate |
| 2484 | // values of $DIREG according to the mode. It would be nice if this |
| 2485 | // could be achieved with InstAlias in the tables. |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2486 | if (Name.startswith("stos") && |
| 2487 | (Operands.size() == 1 || Operands.size() == 2) && |
Joerg Sonnenberger | 3fbfcc0 | 2011-03-18 11:59:40 +0000 | [diff] [blame] | 2488 | (Name == "stos" || Name == "stosb" || Name == "stosw" || |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2489 | Name == "stosl" || Name == "stosd" || Name == "stosq")) { |
| 2490 | TmpOperands.push_back(DefaultMemDIOperand(NameLoc)); |
| 2491 | HadVerifyError = VerifyAndAdjustOperands(Operands, TmpOperands); |
| 2492 | } |
Joerg Sonnenberger | 3fbfcc0 | 2011-03-18 11:59:40 +0000 | [diff] [blame] | 2493 | |
David Woodhouse | 20fe480 | 2014-01-22 15:08:27 +0000 | [diff] [blame] | 2494 | // Transform "scas[bwlq]" into "scas[bwlq] ($DIREG)" for appropriate |
| 2495 | // values of $DIREG according to the mode. It would be nice if this |
| 2496 | // could be achieved with InstAlias in the tables. |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2497 | if (Name.startswith("scas") && |
| 2498 | (Operands.size() == 1 || Operands.size() == 2) && |
David Woodhouse | 20fe480 | 2014-01-22 15:08:27 +0000 | [diff] [blame] | 2499 | (Name == "scas" || Name == "scasb" || Name == "scasw" || |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2500 | Name == "scasl" || Name == "scasd" || Name == "scasq")) { |
| 2501 | TmpOperands.push_back(DefaultMemDIOperand(NameLoc)); |
| 2502 | HadVerifyError = VerifyAndAdjustOperands(Operands, TmpOperands); |
| 2503 | } |
David Woodhouse | 20fe480 | 2014-01-22 15:08:27 +0000 | [diff] [blame] | 2504 | |
David Woodhouse | 9bbf7ca | 2014-01-22 15:08:36 +0000 | [diff] [blame] | 2505 | // Add default SI and DI operands to "cmps[bwlq]". |
| 2506 | if (Name.startswith("cmps") && |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2507 | (Operands.size() == 1 || Operands.size() == 3) && |
David Woodhouse | 9bbf7ca | 2014-01-22 15:08:36 +0000 | [diff] [blame] | 2508 | (Name == "cmps" || Name == "cmpsb" || Name == "cmpsw" || |
| 2509 | Name == "cmpsl" || Name == "cmpsd" || Name == "cmpsq")) { |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2510 | AddDefaultSrcDestOperands(TmpOperands, DefaultMemDIOperand(NameLoc), |
| 2511 | DefaultMemSIOperand(NameLoc)); |
| 2512 | HadVerifyError = VerifyAndAdjustOperands(Operands, TmpOperands); |
David Woodhouse | 9bbf7ca | 2014-01-22 15:08:36 +0000 | [diff] [blame] | 2513 | } |
| 2514 | |
David Woodhouse | 6f417de | 2014-01-22 15:08:42 +0000 | [diff] [blame] | 2515 | // Add default SI and DI operands to "movs[bwlq]". |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2516 | if (((Name.startswith("movs") && |
| 2517 | (Name == "movs" || Name == "movsb" || Name == "movsw" || |
| 2518 | Name == "movsl" || Name == "movsd" || Name == "movsq")) || |
| 2519 | (Name.startswith("smov") && |
| 2520 | (Name == "smov" || Name == "smovb" || Name == "smovw" || |
| 2521 | Name == "smovl" || Name == "smovd" || Name == "smovq"))) && |
| 2522 | (Operands.size() == 1 || Operands.size() == 3)) { |
Coby Tayree | 94ddbb4 | 2016-11-21 15:50:56 +0000 | [diff] [blame] | 2523 | if (Name == "movsd" && Operands.size() == 1 && !isParsingIntelSyntax()) |
Marina Yatsina | b9f4f62 | 2016-01-19 15:37:56 +0000 | [diff] [blame] | 2524 | Operands.back() = X86Operand::CreateToken("movsl", NameLoc); |
| 2525 | AddDefaultSrcDestOperands(TmpOperands, DefaultMemSIOperand(NameLoc), |
| 2526 | DefaultMemDIOperand(NameLoc)); |
| 2527 | HadVerifyError = VerifyAndAdjustOperands(Operands, TmpOperands); |
| 2528 | } |
| 2529 | |
| 2530 | // Check if we encountered an error for one the string insturctions |
| 2531 | if (HadVerifyError) { |
| 2532 | return HadVerifyError; |
David Woodhouse | 6f417de | 2014-01-22 15:08:42 +0000 | [diff] [blame] | 2533 | } |
| 2534 | |
Chris Lattner | 4bd2171 | 2010-09-15 04:33:27 +0000 | [diff] [blame] | 2535 | // FIXME: Hack to handle recognize s{hr,ar,hl} $1, <op>. Canonicalize to |
Chris Lattner | 30561ab | 2010-09-11 16:32:12 +0000 | [diff] [blame] | 2536 | // "shift <op>". |
Daniel Dunbar | 18fc344 | 2010-03-13 00:47:29 +0000 | [diff] [blame] | 2537 | if ((Name.startswith("shr") || Name.startswith("sar") || |
Chris Lattner | 64f91b9 | 2010-11-06 21:23:40 +0000 | [diff] [blame] | 2538 | Name.startswith("shl") || Name.startswith("sal") || |
| 2539 | Name.startswith("rcl") || Name.startswith("rcr") || |
| 2540 | Name.startswith("rol") || Name.startswith("ror")) && |
Chris Lattner | 4cfbcdc | 2010-09-06 18:32:06 +0000 | [diff] [blame] | 2541 | Operands.size() == 3) { |
Devang Patel | 9a9bb5c | 2012-01-30 20:02:42 +0000 | [diff] [blame] | 2542 | if (isParsingIntelSyntax()) { |
Devang Patel | a410ed3 | 2012-01-24 21:43:36 +0000 | [diff] [blame] | 2543 | // Intel syntax |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2544 | X86Operand &Op1 = static_cast<X86Operand &>(*Operands[2]); |
| 2545 | if (Op1.isImm() && isa<MCConstantExpr>(Op1.getImm()) && |
| 2546 | cast<MCConstantExpr>(Op1.getImm())->getValue() == 1) |
Craig Topper | 6bf3ed4 | 2012-07-18 04:59:16 +0000 | [diff] [blame] | 2547 | Operands.pop_back(); |
Devang Patel | a410ed3 | 2012-01-24 21:43:36 +0000 | [diff] [blame] | 2548 | } else { |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2549 | X86Operand &Op1 = static_cast<X86Operand &>(*Operands[1]); |
| 2550 | if (Op1.isImm() && isa<MCConstantExpr>(Op1.getImm()) && |
| 2551 | cast<MCConstantExpr>(Op1.getImm())->getValue() == 1) |
Craig Topper | 6bf3ed4 | 2012-07-18 04:59:16 +0000 | [diff] [blame] | 2552 | Operands.erase(Operands.begin() + 1); |
Chris Lattner | 4cfbcdc | 2010-09-06 18:32:06 +0000 | [diff] [blame] | 2553 | } |
Daniel Dunbar | fbd12cc | 2010-03-20 22:36:38 +0000 | [diff] [blame] | 2554 | } |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 2555 | |
Chris Lattner | fc4fe00 | 2011-04-09 19:41:05 +0000 | [diff] [blame] | 2556 | // Transforms "int $3" into "int3" as a size optimization. We can't write an |
| 2557 | // instalias with an immediate operand yet. |
| 2558 | if (Name == "int" && Operands.size() == 2) { |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2559 | X86Operand &Op1 = static_cast<X86Operand &>(*Operands[1]); |
Duncan P. N. Exon Smith | d531322 | 2015-07-23 19:27:07 +0000 | [diff] [blame] | 2560 | if (Op1.isImm()) |
| 2561 | if (auto *CE = dyn_cast<MCConstantExpr>(Op1.getImm())) |
| 2562 | if (CE->getValue() == 3) { |
| 2563 | Operands.erase(Operands.begin() + 1); |
| 2564 | static_cast<X86Operand &>(*Operands[0]).setTokenValue("int3"); |
| 2565 | } |
Chris Lattner | fc4fe00 | 2011-04-09 19:41:05 +0000 | [diff] [blame] | 2566 | } |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2567 | |
Marina Yatsina | d9658d1 | 2016-01-19 16:35:38 +0000 | [diff] [blame] | 2568 | // Transforms "xlat mem8" into "xlatb" |
| 2569 | if ((Name == "xlat" || Name == "xlatb") && Operands.size() == 2) { |
| 2570 | X86Operand &Op1 = static_cast<X86Operand &>(*Operands[1]); |
| 2571 | if (Op1.isMem8()) { |
| 2572 | Warning(Op1.getStartLoc(), "memory operand is only for determining the " |
| 2573 | "size, (R|E)BX will be used for the location"); |
| 2574 | Operands.pop_back(); |
| 2575 | static_cast<X86Operand &>(*Operands[0]).setTokenValue("xlatb"); |
| 2576 | } |
| 2577 | } |
| 2578 | |
Chris Lattner | f29c0b6 | 2010-01-14 22:21:20 +0000 | [diff] [blame] | 2579 | return false; |
Daniel Dunbar | 3c2a893 | 2009-07-20 18:55:04 +0000 | [diff] [blame] | 2580 | } |
| 2581 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2582 | bool X86AsmParser::processInstruction(MCInst &Inst, const OperandVector &Ops) { |
Aaron Ballman | a81264b | 2016-05-23 15:52:59 +0000 | [diff] [blame] | 2583 | return false; |
Devang Patel | de47cce | 2012-01-18 22:42:29 +0000 | [diff] [blame] | 2584 | } |
| 2585 | |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2586 | static const char *getSubtargetFeatureName(uint64_t Val); |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 2587 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2588 | void X86AsmParser::EmitInstruction(MCInst &Inst, OperandVector &Operands, |
| 2589 | MCStreamer &Out) { |
Evgeniy Stepanov | 77ad866 | 2014-07-31 09:11:04 +0000 | [diff] [blame] | 2590 | Instrumentation->InstrumentAndEmitInstruction(Inst, Operands, getContext(), |
| 2591 | MII, Out); |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 2592 | } |
| 2593 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2594 | bool X86AsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode, |
| 2595 | OperandVector &Operands, |
Tim Northover | 26bb14e | 2014-08-18 11:49:42 +0000 | [diff] [blame] | 2596 | MCStreamer &Out, uint64_t &ErrorInfo, |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2597 | bool MatchingInlineAsm) { |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2598 | if (isParsingIntelSyntax()) |
| 2599 | return MatchAndEmitIntelInstruction(IDLoc, Opcode, Operands, Out, ErrorInfo, |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2600 | MatchingInlineAsm); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2601 | return MatchAndEmitATTInstruction(IDLoc, Opcode, Operands, Out, ErrorInfo, |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2602 | MatchingInlineAsm); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2603 | } |
Daniel Dunbar | 2ecc3bb | 2010-08-12 00:55:38 +0000 | [diff] [blame] | 2604 | |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2605 | void X86AsmParser::MatchFPUWaitAlias(SMLoc IDLoc, X86Operand &Op, |
| 2606 | OperandVector &Operands, MCStreamer &Out, |
| 2607 | bool MatchingInlineAsm) { |
Chris Lattner | a63292a | 2010-09-29 01:50:45 +0000 | [diff] [blame] | 2608 | // FIXME: This should be replaced with a real .td file alias mechanism. |
Chad Rosier | 3b1336c | 2012-08-28 23:57:47 +0000 | [diff] [blame] | 2609 | // Also, MatchInstructionImpl should actually *do* the EmitInstruction |
Chris Lattner | 4869d34 | 2010-11-06 19:57:21 +0000 | [diff] [blame] | 2610 | // call. |
Reid Kleckner | b1f2d2f | 2014-07-31 00:07:33 +0000 | [diff] [blame] | 2611 | const char *Repl = StringSwitch<const char *>(Op.getToken()) |
| 2612 | .Case("finit", "fninit") |
| 2613 | .Case("fsave", "fnsave") |
| 2614 | .Case("fstcw", "fnstcw") |
| 2615 | .Case("fstcww", "fnstcw") |
| 2616 | .Case("fstenv", "fnstenv") |
| 2617 | .Case("fstsw", "fnstsw") |
| 2618 | .Case("fstsww", "fnstsw") |
| 2619 | .Case("fclex", "fnclex") |
| 2620 | .Default(nullptr); |
| 2621 | if (Repl) { |
Chris Lattner | a63292a | 2010-09-29 01:50:45 +0000 | [diff] [blame] | 2622 | MCInst Inst; |
| 2623 | Inst.setOpcode(X86::WAIT); |
Jim Grosbach | 8f28dbd | 2012-01-27 00:51:27 +0000 | [diff] [blame] | 2624 | Inst.setLoc(IDLoc); |
Chad Rosier | 4453e84 | 2012-10-12 23:09:25 +0000 | [diff] [blame] | 2625 | if (!MatchingInlineAsm) |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 2626 | EmitInstruction(Inst, Operands, Out); |
Chris Lattner | adc0dbe | 2010-09-30 16:39:29 +0000 | [diff] [blame] | 2627 | Operands[0] = X86Operand::CreateToken(Repl, IDLoc); |
Chris Lattner | a63292a | 2010-09-29 01:50:45 +0000 | [diff] [blame] | 2628 | } |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2629 | } |
| 2630 | |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2631 | bool X86AsmParser::ErrorMissingFeature(SMLoc IDLoc, uint64_t ErrorInfo, |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2632 | bool MatchingInlineAsm) { |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2633 | assert(ErrorInfo && "Unknown missing feature!"); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2634 | SmallString<126> Msg; |
| 2635 | raw_svector_ostream OS(Msg); |
| 2636 | OS << "instruction requires:"; |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2637 | uint64_t Mask = 1; |
| 2638 | for (unsigned i = 0; i < (sizeof(ErrorInfo)*8-1); ++i) { |
| 2639 | if (ErrorInfo & Mask) |
| 2640 | OS << ' ' << getSubtargetFeatureName(ErrorInfo & Mask); |
| 2641 | Mask <<= 1; |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2642 | } |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2643 | return Error(IDLoc, OS.str(), SMRange(), MatchingInlineAsm); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2644 | } |
| 2645 | |
| 2646 | bool X86AsmParser::MatchAndEmitATTInstruction(SMLoc IDLoc, unsigned &Opcode, |
| 2647 | OperandVector &Operands, |
| 2648 | MCStreamer &Out, |
| 2649 | uint64_t &ErrorInfo, |
| 2650 | bool MatchingInlineAsm) { |
| 2651 | assert(!Operands.empty() && "Unexpect empty operand list!"); |
| 2652 | X86Operand &Op = static_cast<X86Operand &>(*Operands[0]); |
| 2653 | assert(Op.isToken() && "Leading operand should always be a mnemonic!"); |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2654 | SMRange EmptyRange = None; |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2655 | |
| 2656 | // First, handle aliases that expand to multiple instructions. |
| 2657 | MatchFPUWaitAlias(IDLoc, Op, Operands, Out, MatchingInlineAsm); |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2658 | |
Chris Lattner | 628fbec | 2010-09-06 21:54:15 +0000 | [diff] [blame] | 2659 | bool WasOriginallyInvalidOperand = false; |
Chris Lattner | b44fd24 | 2010-09-29 01:42:58 +0000 | [diff] [blame] | 2660 | MCInst Inst; |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2661 | |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2662 | // First, try a direct match. |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 2663 | switch (MatchInstruction(Operands, Inst, ErrorInfo, MatchingInlineAsm, |
| 2664 | isParsingIntelSyntax())) { |
Craig Topper | 589ceee | 2015-01-03 08:16:34 +0000 | [diff] [blame] | 2665 | default: llvm_unreachable("Unexpected match result!"); |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2666 | case Match_Success: |
Devang Patel | de47cce | 2012-01-18 22:42:29 +0000 | [diff] [blame] | 2667 | // Some instructions need post-processing to, for example, tweak which |
| 2668 | // encoding is selected. Loop on it while changes happen so the |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 2669 | // individual transformations can chain off each other. |
Chad Rosier | 4453e84 | 2012-10-12 23:09:25 +0000 | [diff] [blame] | 2670 | if (!MatchingInlineAsm) |
Chad Rosier | f4e35dc | 2012-10-01 23:45:51 +0000 | [diff] [blame] | 2671 | while (processInstruction(Inst, Operands)) |
| 2672 | ; |
Devang Patel | de47cce | 2012-01-18 22:42:29 +0000 | [diff] [blame] | 2673 | |
Jim Grosbach | 8f28dbd | 2012-01-27 00:51:27 +0000 | [diff] [blame] | 2674 | Inst.setLoc(IDLoc); |
Chad Rosier | 4453e84 | 2012-10-12 23:09:25 +0000 | [diff] [blame] | 2675 | if (!MatchingInlineAsm) |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 2676 | EmitInstruction(Inst, Operands, Out); |
Chad Rosier | f4e35dc | 2012-10-01 23:45:51 +0000 | [diff] [blame] | 2677 | Opcode = Inst.getOpcode(); |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2678 | return false; |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2679 | case Match_MissingFeature: |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2680 | return ErrorMissingFeature(IDLoc, ErrorInfo, MatchingInlineAsm); |
Chris Lattner | 628fbec | 2010-09-06 21:54:15 +0000 | [diff] [blame] | 2681 | case Match_InvalidOperand: |
| 2682 | WasOriginallyInvalidOperand = true; |
| 2683 | break; |
| 2684 | case Match_MnemonicFail: |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2685 | break; |
| 2686 | } |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2687 | |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2688 | // FIXME: Ideally, we would only attempt suffix matches for things which are |
| 2689 | // valid prefixes, and we could just infer the right unambiguous |
| 2690 | // type. However, that requires substantially more matcher support than the |
| 2691 | // following hack. |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2692 | |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2693 | // Change the operand to point to a temporary token. |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2694 | StringRef Base = Op.getToken(); |
Daniel Dunbar | 2ecc3bb | 2010-08-12 00:55:38 +0000 | [diff] [blame] | 2695 | SmallString<16> Tmp; |
| 2696 | Tmp += Base; |
| 2697 | Tmp += ' '; |
Yaron Keren | 075759a | 2015-03-30 15:42:36 +0000 | [diff] [blame] | 2698 | Op.setTokenValue(Tmp); |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2699 | |
Chris Lattner | fab9413 | 2010-11-06 18:28:02 +0000 | [diff] [blame] | 2700 | // If this instruction starts with an 'f', then it is a floating point stack |
| 2701 | // instruction. These come in up to three forms for 32-bit, 64-bit, and |
| 2702 | // 80-bit floating point, which use the suffixes s,l,t respectively. |
| 2703 | // |
| 2704 | // Otherwise, we assume that this may be an integer instruction, which comes |
| 2705 | // in 8/16/32/64-bit forms using the b,w,l,q suffixes respectively. |
| 2706 | const char *Suffixes = Base[0] != 'f' ? "bwlq" : "slt\0"; |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 2707 | |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2708 | // Check for the various suffix matches. |
Tim Northover | 26bb14e | 2014-08-18 11:49:42 +0000 | [diff] [blame] | 2709 | uint64_t ErrorInfoIgnore; |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2710 | uint64_t ErrorInfoMissingFeature = 0; // Init suppresses compiler warnings. |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2711 | unsigned Match[4]; |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 2712 | |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2713 | for (unsigned I = 0, E = array_lengthof(Match); I != E; ++I) { |
| 2714 | Tmp.back() = Suffixes[I]; |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 2715 | Match[I] = MatchInstruction(Operands, Inst, ErrorInfoIgnore, |
| 2716 | MatchingInlineAsm, isParsingIntelSyntax()); |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2717 | // If this returned as a missing feature failure, remember that. |
| 2718 | if (Match[I] == Match_MissingFeature) |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2719 | ErrorInfoMissingFeature = ErrorInfoIgnore; |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2720 | } |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2721 | |
| 2722 | // Restore the old token. |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2723 | Op.setTokenValue(Base); |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2724 | |
| 2725 | // If exactly one matched, then we treat that as a successful match (and the |
| 2726 | // instruction will already have been filled in correctly, since the failing |
| 2727 | // matches won't have modified it). |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2728 | unsigned NumSuccessfulMatches = |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2729 | std::count(std::begin(Match), std::end(Match), Match_Success); |
Chris Lattner | b44fd24 | 2010-09-29 01:42:58 +0000 | [diff] [blame] | 2730 | if (NumSuccessfulMatches == 1) { |
Jim Grosbach | 8f28dbd | 2012-01-27 00:51:27 +0000 | [diff] [blame] | 2731 | Inst.setLoc(IDLoc); |
Chad Rosier | 4453e84 | 2012-10-12 23:09:25 +0000 | [diff] [blame] | 2732 | if (!MatchingInlineAsm) |
Evgeniy Stepanov | 49e2625 | 2014-03-14 08:58:04 +0000 | [diff] [blame] | 2733 | EmitInstruction(Inst, Operands, Out); |
Chad Rosier | f4e35dc | 2012-10-01 23:45:51 +0000 | [diff] [blame] | 2734 | Opcode = Inst.getOpcode(); |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2735 | return false; |
Chris Lattner | b44fd24 | 2010-09-29 01:42:58 +0000 | [diff] [blame] | 2736 | } |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2737 | |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2738 | // Otherwise, the match failed, try to produce a decent error message. |
Daniel Dunbar | 2ecc3bb | 2010-08-12 00:55:38 +0000 | [diff] [blame] | 2739 | |
Daniel Dunbar | 7d7b4d1 | 2010-08-12 00:55:42 +0000 | [diff] [blame] | 2740 | // If we had multiple suffix matches, then identify this as an ambiguous |
| 2741 | // match. |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2742 | if (NumSuccessfulMatches > 1) { |
Daniel Dunbar | 7d7b4d1 | 2010-08-12 00:55:42 +0000 | [diff] [blame] | 2743 | char MatchChars[4]; |
| 2744 | unsigned NumMatches = 0; |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2745 | for (unsigned I = 0, E = array_lengthof(Match); I != E; ++I) |
| 2746 | if (Match[I] == Match_Success) |
| 2747 | MatchChars[NumMatches++] = Suffixes[I]; |
Daniel Dunbar | 7d7b4d1 | 2010-08-12 00:55:42 +0000 | [diff] [blame] | 2748 | |
Alp Toker | e69170a | 2014-06-26 22:52:05 +0000 | [diff] [blame] | 2749 | SmallString<126> Msg; |
| 2750 | raw_svector_ostream OS(Msg); |
Daniel Dunbar | 7d7b4d1 | 2010-08-12 00:55:42 +0000 | [diff] [blame] | 2751 | OS << "ambiguous instructions require an explicit suffix (could be "; |
| 2752 | for (unsigned i = 0; i != NumMatches; ++i) { |
| 2753 | if (i != 0) |
| 2754 | OS << ", "; |
| 2755 | if (i + 1 == NumMatches) |
| 2756 | OS << "or "; |
| 2757 | OS << "'" << Base << MatchChars[i] << "'"; |
| 2758 | } |
| 2759 | OS << ")"; |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2760 | Error(IDLoc, OS.str(), EmptyRange, MatchingInlineAsm); |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2761 | return true; |
Daniel Dunbar | 7d7b4d1 | 2010-08-12 00:55:42 +0000 | [diff] [blame] | 2762 | } |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2763 | |
Chris Lattner | 628fbec | 2010-09-06 21:54:15 +0000 | [diff] [blame] | 2764 | // Okay, we know that none of the variants matched successfully. |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2765 | |
Chris Lattner | 628fbec | 2010-09-06 21:54:15 +0000 | [diff] [blame] | 2766 | // If all of the instructions reported an invalid mnemonic, then the original |
| 2767 | // mnemonic was invalid. |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2768 | if (std::count(std::begin(Match), std::end(Match), Match_MnemonicFail) == 4) { |
Chris Lattner | 339cc7b | 2010-09-06 22:11:18 +0000 | [diff] [blame] | 2769 | if (!WasOriginallyInvalidOperand) { |
Benjamin Kramer | d416bae | 2011-10-16 11:28:29 +0000 | [diff] [blame] | 2770 | return Error(IDLoc, "invalid instruction mnemonic '" + Base + "'", |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2771 | Op.getLocRange(), MatchingInlineAsm); |
Chris Lattner | 339cc7b | 2010-09-06 22:11:18 +0000 | [diff] [blame] | 2772 | } |
| 2773 | |
| 2774 | // Recover location info for the operand if we know which was the problem. |
Tim Northover | 26bb14e | 2014-08-18 11:49:42 +0000 | [diff] [blame] | 2775 | if (ErrorInfo != ~0ULL) { |
Chad Rosier | 4996355 | 2012-10-13 00:26:04 +0000 | [diff] [blame] | 2776 | if (ErrorInfo >= Operands.size()) |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2777 | return Error(IDLoc, "too few operands for instruction", EmptyRange, |
| 2778 | MatchingInlineAsm); |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2779 | |
David Blaikie | 960ea3f | 2014-06-08 16:18:35 +0000 | [diff] [blame] | 2780 | X86Operand &Operand = (X86Operand &)*Operands[ErrorInfo]; |
| 2781 | if (Operand.getStartLoc().isValid()) { |
| 2782 | SMRange OperandRange = Operand.getLocRange(); |
| 2783 | return Error(Operand.getStartLoc(), "invalid operand for instruction", |
Chad Rosier | 4453e84 | 2012-10-12 23:09:25 +0000 | [diff] [blame] | 2784 | OperandRange, MatchingInlineAsm); |
Chris Lattner | a3a0681 | 2011-10-16 04:47:35 +0000 | [diff] [blame] | 2785 | } |
Chris Lattner | 339cc7b | 2010-09-06 22:11:18 +0000 | [diff] [blame] | 2786 | } |
| 2787 | |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2788 | return Error(IDLoc, "invalid operand for instruction", EmptyRange, |
Chad Rosier | 4453e84 | 2012-10-12 23:09:25 +0000 | [diff] [blame] | 2789 | MatchingInlineAsm); |
Chris Lattner | 628fbec | 2010-09-06 21:54:15 +0000 | [diff] [blame] | 2790 | } |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2791 | |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2792 | // If one instruction matched with a missing feature, report this as a |
| 2793 | // missing feature. |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2794 | if (std::count(std::begin(Match), std::end(Match), |
| 2795 | Match_MissingFeature) == 1) { |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2796 | ErrorInfo = ErrorInfoMissingFeature; |
| 2797 | return ErrorMissingFeature(IDLoc, ErrorInfoMissingFeature, |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2798 | MatchingInlineAsm); |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2799 | } |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2800 | |
Chris Lattner | 628fbec | 2010-09-06 21:54:15 +0000 | [diff] [blame] | 2801 | // If one instruction matched with an invalid operand, report this as an |
| 2802 | // operand failure. |
Reid Kleckner | 7b1e1a0 | 2014-07-30 22:23:11 +0000 | [diff] [blame] | 2803 | if (std::count(std::begin(Match), std::end(Match), |
| 2804 | Match_InvalidOperand) == 1) { |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2805 | return Error(IDLoc, "invalid operand for instruction", EmptyRange, |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2806 | MatchingInlineAsm); |
Chris Lattner | 628fbec | 2010-09-06 21:54:15 +0000 | [diff] [blame] | 2807 | } |
Michael J. Spencer | 530ce85 | 2010-10-09 11:00:50 +0000 | [diff] [blame] | 2808 | |
Chris Lattner | b4be28f | 2010-09-06 20:08:02 +0000 | [diff] [blame] | 2809 | // If all of these were an outright failure, report it in a useless way. |
Chad Rosier | 3d4bc62 | 2012-08-21 19:36:59 +0000 | [diff] [blame] | 2810 | Error(IDLoc, "unknown use of instruction mnemonic without a size suffix", |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2811 | EmptyRange, MatchingInlineAsm); |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2812 | return true; |
| 2813 | } |
| 2814 | |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2815 | bool X86AsmParser::MatchAndEmitIntelInstruction(SMLoc IDLoc, unsigned &Opcode, |
| 2816 | OperandVector &Operands, |
| 2817 | MCStreamer &Out, |
| 2818 | uint64_t &ErrorInfo, |
| 2819 | bool MatchingInlineAsm) { |
| 2820 | assert(!Operands.empty() && "Unexpect empty operand list!"); |
| 2821 | X86Operand &Op = static_cast<X86Operand &>(*Operands[0]); |
| 2822 | assert(Op.isToken() && "Leading operand should always be a mnemonic!"); |
| 2823 | StringRef Mnemonic = Op.getToken(); |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2824 | SMRange EmptyRange = None; |
Nirav Dave | ee554e6 | 2016-10-06 15:28:08 +0000 | [diff] [blame] | 2825 | StringRef Base = Op.getToken(); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2826 | |
| 2827 | // First, handle aliases that expand to multiple instructions. |
| 2828 | MatchFPUWaitAlias(IDLoc, Op, Operands, Out, MatchingInlineAsm); |
| 2829 | |
| 2830 | MCInst Inst; |
| 2831 | |
| 2832 | // Find one unsized memory operand, if present. |
| 2833 | X86Operand *UnsizedMemOp = nullptr; |
| 2834 | for (const auto &Op : Operands) { |
| 2835 | X86Operand *X86Op = static_cast<X86Operand *>(Op.get()); |
Reid Kleckner | 6d2ea6e | 2017-05-04 18:19:52 +0000 | [diff] [blame] | 2836 | if (X86Op->isMemUnsized()) { |
| 2837 | UnsizedMemOp = X86Op; |
Coby Tayree | 49b3733 | 2016-11-22 09:30:29 +0000 | [diff] [blame] | 2838 | // Have we found an unqualified memory operand, |
| 2839 | // break. IA allows only one memory operand. |
| 2840 | break; |
| 2841 | } |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2842 | } |
| 2843 | |
| 2844 | // Allow some instructions to have implicitly pointer-sized operands. This is |
| 2845 | // compatible with gas. |
| 2846 | if (UnsizedMemOp) { |
| 2847 | static const char *const PtrSizedInstrs[] = {"call", "jmp", "push"}; |
| 2848 | for (const char *Instr : PtrSizedInstrs) { |
| 2849 | if (Mnemonic == Instr) { |
Craig Topper | 055845f | 2015-01-02 07:02:25 +0000 | [diff] [blame] | 2850 | UnsizedMemOp->Mem.Size = getPointerWidth(); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2851 | break; |
| 2852 | } |
| 2853 | } |
| 2854 | } |
| 2855 | |
Nirav Dave | ee554e6 | 2016-10-06 15:28:08 +0000 | [diff] [blame] | 2856 | SmallVector<unsigned, 8> Match; |
| 2857 | uint64_t ErrorInfoMissingFeature = 0; |
| 2858 | |
| 2859 | // If unsized push has immediate operand we should default the default pointer |
| 2860 | // size for the size. |
| 2861 | if (Mnemonic == "push" && Operands.size() == 2) { |
| 2862 | auto *X86Op = static_cast<X86Operand *>(Operands[1].get()); |
| 2863 | if (X86Op->isImm()) { |
| 2864 | // If it's not a constant fall through and let remainder take care of it. |
| 2865 | const auto *CE = dyn_cast<MCConstantExpr>(X86Op->getImm()); |
| 2866 | unsigned Size = getPointerWidth(); |
| 2867 | if (CE && |
| 2868 | (isIntN(Size, CE->getValue()) || isUIntN(Size, CE->getValue()))) { |
| 2869 | SmallString<16> Tmp; |
| 2870 | Tmp += Base; |
| 2871 | Tmp += (is64BitMode()) |
| 2872 | ? "q" |
| 2873 | : (is32BitMode()) ? "l" : (is16BitMode()) ? "w" : " "; |
| 2874 | Op.setTokenValue(Tmp); |
| 2875 | // Do match in ATT mode to allow explicit suffix usage. |
| 2876 | Match.push_back(MatchInstruction(Operands, Inst, ErrorInfo, |
| 2877 | MatchingInlineAsm, |
| 2878 | false /*isParsingIntelSyntax()*/)); |
| 2879 | Op.setTokenValue(Base); |
| 2880 | } |
| 2881 | } |
| 2882 | } |
| 2883 | |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2884 | // If an unsized memory operand is present, try to match with each memory |
| 2885 | // operand size. In Intel assembly, the size is not part of the instruction |
| 2886 | // mnemonic. |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2887 | if (UnsizedMemOp && UnsizedMemOp->isMemUnsized()) { |
Ahmed Bougacha | d65f787 | 2014-12-03 02:03:26 +0000 | [diff] [blame] | 2888 | static const unsigned MopSizes[] = {8, 16, 32, 64, 80, 128, 256, 512}; |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2889 | for (unsigned Size : MopSizes) { |
| 2890 | UnsizedMemOp->Mem.Size = Size; |
| 2891 | uint64_t ErrorInfoIgnore; |
Reid Kleckner | 7b7a599 | 2014-08-27 20:10:38 +0000 | [diff] [blame] | 2892 | unsigned LastOpcode = Inst.getOpcode(); |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 2893 | unsigned M = MatchInstruction(Operands, Inst, ErrorInfoIgnore, |
| 2894 | MatchingInlineAsm, isParsingIntelSyntax()); |
Reid Kleckner | 7b7a599 | 2014-08-27 20:10:38 +0000 | [diff] [blame] | 2895 | if (Match.empty() || LastOpcode != Inst.getOpcode()) |
| 2896 | Match.push_back(M); |
| 2897 | |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2898 | // If this returned as a missing feature failure, remember that. |
| 2899 | if (Match.back() == Match_MissingFeature) |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2900 | ErrorInfoMissingFeature = ErrorInfoIgnore; |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2901 | } |
Reid Kleckner | 7b7a599 | 2014-08-27 20:10:38 +0000 | [diff] [blame] | 2902 | |
| 2903 | // Restore the size of the unsized memory operand if we modified it. |
Reid Kleckner | 6d2ea6e | 2017-05-04 18:19:52 +0000 | [diff] [blame] | 2904 | UnsizedMemOp->Mem.Size = 0; |
Reid Kleckner | 7b7a599 | 2014-08-27 20:10:38 +0000 | [diff] [blame] | 2905 | } |
| 2906 | |
| 2907 | // If we haven't matched anything yet, this is not a basic integer or FPU |
Saleem Abdulrasool | c3f8ad3 | 2015-01-16 20:16:06 +0000 | [diff] [blame] | 2908 | // operation. There shouldn't be any ambiguity in our mnemonic table, so try |
Reid Kleckner | 7b7a599 | 2014-08-27 20:10:38 +0000 | [diff] [blame] | 2909 | // matching with the unsized operand. |
| 2910 | if (Match.empty()) { |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 2911 | Match.push_back(MatchInstruction( |
| 2912 | Operands, Inst, ErrorInfo, MatchingInlineAsm, isParsingIntelSyntax())); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2913 | // If this returned as a missing feature failure, remember that. |
| 2914 | if (Match.back() == Match_MissingFeature) |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2915 | ErrorInfoMissingFeature = ErrorInfo; |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2916 | } |
| 2917 | |
| 2918 | // Restore the size of the unsized memory operand if we modified it. |
| 2919 | if (UnsizedMemOp) |
| 2920 | UnsizedMemOp->Mem.Size = 0; |
| 2921 | |
| 2922 | // If it's a bad mnemonic, all results will be the same. |
| 2923 | if (Match.back() == Match_MnemonicFail) { |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2924 | return Error(IDLoc, "invalid instruction mnemonic '" + Mnemonic + "'", |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2925 | Op.getLocRange(), MatchingInlineAsm); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2926 | } |
| 2927 | |
Reid Kleckner | 6d2ea6e | 2017-05-04 18:19:52 +0000 | [diff] [blame] | 2928 | unsigned NumSuccessfulMatches = |
| 2929 | std::count(std::begin(Match), std::end(Match), Match_Success); |
| 2930 | |
| 2931 | // If matching was ambiguous and we had size information from the frontend, |
| 2932 | // try again with that. This handles cases like "movxz eax, m8/m16". |
| 2933 | if (UnsizedMemOp && NumSuccessfulMatches > 1 && |
| 2934 | UnsizedMemOp->getMemFrontendSize()) { |
| 2935 | UnsizedMemOp->Mem.Size = UnsizedMemOp->getMemFrontendSize(); |
| 2936 | unsigned M = MatchInstruction( |
| 2937 | Operands, Inst, ErrorInfo, MatchingInlineAsm, isParsingIntelSyntax()); |
| 2938 | if (M == Match_Success) |
| 2939 | NumSuccessfulMatches = 1; |
| 2940 | |
| 2941 | // Add a rewrite that encodes the size information we used from the |
| 2942 | // frontend. |
| 2943 | InstInfo->AsmRewrites->emplace_back( |
| 2944 | AOK_SizeDirective, UnsizedMemOp->getStartLoc(), |
| 2945 | /*Len=*/0, UnsizedMemOp->getMemFrontendSize()); |
| 2946 | } |
| 2947 | |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2948 | // If exactly one matched, then we treat that as a successful match (and the |
| 2949 | // instruction will already have been filled in correctly, since the failing |
| 2950 | // matches won't have modified it). |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2951 | if (NumSuccessfulMatches == 1) { |
| 2952 | // Some instructions need post-processing to, for example, tweak which |
| 2953 | // encoding is selected. Loop on it while changes happen so the individual |
| 2954 | // transformations can chain off each other. |
| 2955 | if (!MatchingInlineAsm) |
| 2956 | while (processInstruction(Inst, Operands)) |
| 2957 | ; |
| 2958 | Inst.setLoc(IDLoc); |
| 2959 | if (!MatchingInlineAsm) |
| 2960 | EmitInstruction(Inst, Operands, Out); |
| 2961 | Opcode = Inst.getOpcode(); |
| 2962 | return false; |
| 2963 | } else if (NumSuccessfulMatches > 1) { |
| 2964 | assert(UnsizedMemOp && |
| 2965 | "multiple matches only possible with unsized memory operands"); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2966 | return Error(UnsizedMemOp->getStartLoc(), |
| 2967 | "ambiguous operand size for instruction '" + Mnemonic + "\'", |
Reid Kleckner | 6d2ea6e | 2017-05-04 18:19:52 +0000 | [diff] [blame] | 2968 | UnsizedMemOp->getLocRange()); |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2969 | } |
| 2970 | |
| 2971 | // If one instruction matched with a missing feature, report this as a |
| 2972 | // missing feature. |
| 2973 | if (std::count(std::begin(Match), std::end(Match), |
| 2974 | Match_MissingFeature) == 1) { |
Ranjeet Singh | 86ecbb7 | 2015-06-30 12:32:53 +0000 | [diff] [blame] | 2975 | ErrorInfo = ErrorInfoMissingFeature; |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2976 | return ErrorMissingFeature(IDLoc, ErrorInfoMissingFeature, |
| 2977 | MatchingInlineAsm); |
| 2978 | } |
| 2979 | |
| 2980 | // If one instruction matched with an invalid operand, report this as an |
| 2981 | // operand failure. |
| 2982 | if (std::count(std::begin(Match), std::end(Match), |
| 2983 | Match_InvalidOperand) == 1) { |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2984 | return Error(IDLoc, "invalid operand for instruction", EmptyRange, |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2985 | MatchingInlineAsm); |
| 2986 | } |
| 2987 | |
| 2988 | // If all of these were an outright failure, report it in a useless way. |
Nirav Dave | 2364748a | 2016-09-16 18:30:20 +0000 | [diff] [blame] | 2989 | return Error(IDLoc, "unknown instruction mnemonic", EmptyRange, |
Reid Kleckner | f6fb780 | 2014-08-26 20:32:34 +0000 | [diff] [blame] | 2990 | MatchingInlineAsm); |
| 2991 | } |
| 2992 | |
Nico Weber | 42f79db | 2014-07-17 20:24:55 +0000 | [diff] [blame] | 2993 | bool X86AsmParser::OmitRegisterFromClobberLists(unsigned RegNo) { |
| 2994 | return X86MCRegisterClasses[X86::SEGMENT_REGRegClassID].contains(RegNo); |
| 2995 | } |
Daniel Dunbar | 9b816a1 | 2010-05-04 16:12:42 +0000 | [diff] [blame] | 2996 | |
Devang Patel | 4a6e778 | 2012-01-12 18:03:40 +0000 | [diff] [blame] | 2997 | bool X86AsmParser::ParseDirective(AsmToken DirectiveID) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 2998 | MCAsmParser &Parser = getParser(); |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 2999 | StringRef IDVal = DirectiveID.getIdentifier(); |
| 3000 | if (IDVal == ".word") |
| 3001 | return ParseDirectiveWord(2, DirectiveID.getLoc()); |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 3002 | else if (IDVal.startswith(".code")) |
| 3003 | return ParseDirectiveCode(IDVal, DirectiveID.getLoc()); |
Chad Rosier | 6f8d8b2 | 2012-09-10 20:54:39 +0000 | [diff] [blame] | 3004 | else if (IDVal.startswith(".att_syntax")) { |
Andrew V. Tischenko | c3c6723 | 2017-04-26 09:56:59 +0000 | [diff] [blame] | 3005 | getParser().setParsingInlineAsm(false); |
Reid Kleckner | ce63b79 | 2014-08-06 23:21:13 +0000 | [diff] [blame] | 3006 | if (getLexer().isNot(AsmToken::EndOfStatement)) { |
| 3007 | if (Parser.getTok().getString() == "prefix") |
| 3008 | Parser.Lex(); |
| 3009 | else if (Parser.getTok().getString() == "noprefix") |
| 3010 | return Error(DirectiveID.getLoc(), "'.att_syntax noprefix' is not " |
| 3011 | "supported: registers must have a " |
| 3012 | "'%' prefix in .att_syntax"); |
| 3013 | } |
Chad Rosier | 6f8d8b2 | 2012-09-10 20:54:39 +0000 | [diff] [blame] | 3014 | getParser().setAssemblerDialect(0); |
| 3015 | return false; |
| 3016 | } else if (IDVal.startswith(".intel_syntax")) { |
Devang Patel | a173ee5 | 2012-01-31 18:14:05 +0000 | [diff] [blame] | 3017 | getParser().setAssemblerDialect(1); |
Andrew V. Tischenko | c3c6723 | 2017-04-26 09:56:59 +0000 | [diff] [blame] | 3018 | getParser().setParsingInlineAsm(true); |
Devang Patel | 9a9bb5c | 2012-01-30 20:02:42 +0000 | [diff] [blame] | 3019 | if (getLexer().isNot(AsmToken::EndOfStatement)) { |
Saleem Abdulrasool | a6505ca | 2014-01-13 01:15:39 +0000 | [diff] [blame] | 3020 | if (Parser.getTok().getString() == "noprefix") |
Craig Topper | 6bf3ed4 | 2012-07-18 04:59:16 +0000 | [diff] [blame] | 3021 | Parser.Lex(); |
Reid Kleckner | ce63b79 | 2014-08-06 23:21:13 +0000 | [diff] [blame] | 3022 | else if (Parser.getTok().getString() == "prefix") |
| 3023 | return Error(DirectiveID.getLoc(), "'.intel_syntax prefix' is not " |
| 3024 | "supported: registers must not have " |
| 3025 | "a '%' prefix in .intel_syntax"); |
Devang Patel | 9a9bb5c | 2012-01-30 20:02:42 +0000 | [diff] [blame] | 3026 | } |
| 3027 | return false; |
Michael Zuckerman | 02ecd43 | 2015-12-13 17:07:23 +0000 | [diff] [blame] | 3028 | } else if (IDVal == ".even") |
| 3029 | return parseDirectiveEven(DirectiveID.getLoc()); |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3030 | return true; |
| 3031 | } |
| 3032 | |
Michael Zuckerman | 02ecd43 | 2015-12-13 17:07:23 +0000 | [diff] [blame] | 3033 | /// parseDirectiveEven |
| 3034 | /// ::= .even |
| 3035 | bool X86AsmParser::parseDirectiveEven(SMLoc L) { |
Michael Zuckerman | 02ecd43 | 2015-12-13 17:07:23 +0000 | [diff] [blame] | 3036 | if (getLexer().isNot(AsmToken::EndOfStatement)) { |
| 3037 | TokError("unexpected token in directive"); |
| 3038 | return false; |
| 3039 | } |
Eric Christopher | 445c952 | 2016-10-14 05:47:37 +0000 | [diff] [blame] | 3040 | const MCSection *Section = getStreamer().getCurrentSectionOnly(); |
Michael Zuckerman | 02ecd43 | 2015-12-13 17:07:23 +0000 | [diff] [blame] | 3041 | if (!Section) { |
| 3042 | getStreamer().InitSections(false); |
Eric Christopher | 445c952 | 2016-10-14 05:47:37 +0000 | [diff] [blame] | 3043 | Section = getStreamer().getCurrentSectionOnly(); |
Michael Zuckerman | 02ecd43 | 2015-12-13 17:07:23 +0000 | [diff] [blame] | 3044 | } |
| 3045 | if (Section->UseCodeAlign()) |
| 3046 | getStreamer().EmitCodeAlignment(2, 0); |
| 3047 | else |
| 3048 | getStreamer().EmitValueToAlignment(2, 0, 1, 0); |
| 3049 | return false; |
| 3050 | } |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3051 | /// ParseDirectiveWord |
| 3052 | /// ::= .word [ expression (, expression)* ] |
Devang Patel | 4a6e778 | 2012-01-12 18:03:40 +0000 | [diff] [blame] | 3053 | bool X86AsmParser::ParseDirectiveWord(unsigned Size, SMLoc L) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 3054 | MCAsmParser &Parser = getParser(); |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3055 | if (getLexer().isNot(AsmToken::EndOfStatement)) { |
| 3056 | for (;;) { |
| 3057 | const MCExpr *Value; |
David Majnemer | a375b26 | 2015-10-26 02:45:50 +0000 | [diff] [blame] | 3058 | SMLoc ExprLoc = getLexer().getLoc(); |
Jim Grosbach | d2037eb | 2013-02-20 22:21:35 +0000 | [diff] [blame] | 3059 | if (getParser().parseExpression(Value)) |
Saleem Abdulrasool | a6505ca | 2014-01-13 01:15:39 +0000 | [diff] [blame] | 3060 | return false; |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 3061 | |
David Majnemer | a375b26 | 2015-10-26 02:45:50 +0000 | [diff] [blame] | 3062 | if (const auto *MCE = dyn_cast<MCConstantExpr>(Value)) { |
| 3063 | assert(Size <= 8 && "Invalid size"); |
| 3064 | uint64_t IntValue = MCE->getValue(); |
| 3065 | if (!isUIntN(8 * Size, IntValue) && !isIntN(8 * Size, IntValue)) |
| 3066 | return Error(ExprLoc, "literal value out of range for directive"); |
| 3067 | getStreamer().EmitIntValue(IntValue, Size); |
| 3068 | } else { |
| 3069 | getStreamer().EmitValue(Value, Size, ExprLoc); |
| 3070 | } |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 3071 | |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3072 | if (getLexer().is(AsmToken::EndOfStatement)) |
| 3073 | break; |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 3074 | |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3075 | // FIXME: Improve diagnostic. |
Saleem Abdulrasool | a6505ca | 2014-01-13 01:15:39 +0000 | [diff] [blame] | 3076 | if (getLexer().isNot(AsmToken::Comma)) { |
| 3077 | Error(L, "unexpected token in directive"); |
| 3078 | return false; |
| 3079 | } |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3080 | Parser.Lex(); |
| 3081 | } |
| 3082 | } |
Chad Rosier | 51afe63 | 2012-06-27 22:34:28 +0000 | [diff] [blame] | 3083 | |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3084 | Parser.Lex(); |
| 3085 | return false; |
| 3086 | } |
| 3087 | |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 3088 | /// ParseDirectiveCode |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 3089 | /// ::= .code16 | .code32 | .code64 |
Devang Patel | 4a6e778 | 2012-01-12 18:03:40 +0000 | [diff] [blame] | 3090 | bool X86AsmParser::ParseDirectiveCode(StringRef IDVal, SMLoc L) { |
Rafael Espindola | 961d469 | 2014-11-11 05:18:41 +0000 | [diff] [blame] | 3091 | MCAsmParser &Parser = getParser(); |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 3092 | Code16GCC = false; |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 3093 | if (IDVal == ".code16") { |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 3094 | Parser.Lex(); |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 3095 | if (!is16BitMode()) { |
| 3096 | SwitchMode(X86::Mode16Bit); |
| 3097 | getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16); |
| 3098 | } |
Nirav Dave | 6477ce2 | 2016-09-26 19:33:36 +0000 | [diff] [blame] | 3099 | } else if (IDVal == ".code16gcc") { |
| 3100 | // .code16gcc parses as if in 32-bit mode, but emits code in 16-bit mode. |
| 3101 | Parser.Lex(); |
| 3102 | Code16GCC = true; |
| 3103 | if (!is16BitMode()) { |
| 3104 | SwitchMode(X86::Mode16Bit); |
| 3105 | getParser().getStreamer().EmitAssemblerFlag(MCAF_Code16); |
| 3106 | } |
Saleem Abdulrasool | a6505ca | 2014-01-13 01:15:39 +0000 | [diff] [blame] | 3107 | } else if (IDVal == ".code32") { |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 3108 | Parser.Lex(); |
| 3109 | if (!is32BitMode()) { |
| 3110 | SwitchMode(X86::Mode32Bit); |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 3111 | getParser().getStreamer().EmitAssemblerFlag(MCAF_Code32); |
| 3112 | } |
| 3113 | } else if (IDVal == ".code64") { |
| 3114 | Parser.Lex(); |
| 3115 | if (!is64BitMode()) { |
Craig Topper | 3c80d62 | 2014-01-06 04:55:54 +0000 | [diff] [blame] | 3116 | SwitchMode(X86::Mode64Bit); |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 3117 | getParser().getStreamer().EmitAssemblerFlag(MCAF_Code64); |
| 3118 | } |
| 3119 | } else { |
Saleem Abdulrasool | a6505ca | 2014-01-13 01:15:39 +0000 | [diff] [blame] | 3120 | Error(L, "unknown directive " + IDVal); |
| 3121 | return false; |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 3122 | } |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3123 | |
Evan Cheng | 481ebb0 | 2011-07-27 00:38:12 +0000 | [diff] [blame] | 3124 | return false; |
| 3125 | } |
Chris Lattner | 72c0b59 | 2010-10-30 17:38:55 +0000 | [diff] [blame] | 3126 | |
Daniel Dunbar | 7147577 | 2009-07-17 20:42:00 +0000 | [diff] [blame] | 3127 | // Force static initialization. |
| 3128 | extern "C" void LLVMInitializeX86AsmParser() { |
Mehdi Amini | f42454b | 2016-10-09 23:00:34 +0000 | [diff] [blame] | 3129 | RegisterMCAsmParser<X86AsmParser> X(getTheX86_32Target()); |
| 3130 | RegisterMCAsmParser<X86AsmParser> Y(getTheX86_64Target()); |
Daniel Dunbar | 7147577 | 2009-07-17 20:42:00 +0000 | [diff] [blame] | 3131 | } |
Daniel Dunbar | 0033199 | 2009-07-29 00:02:19 +0000 | [diff] [blame] | 3132 | |
Chris Lattner | 3e4582a | 2010-09-06 19:11:01 +0000 | [diff] [blame] | 3133 | #define GET_REGISTER_MATCHER |
| 3134 | #define GET_MATCHER_IMPLEMENTATION |
Jim Grosbach | 6f1f41b | 2012-11-14 18:04:47 +0000 | [diff] [blame] | 3135 | #define GET_SUBTARGET_FEATURE_NAME |
Daniel Dunbar | 0033199 | 2009-07-29 00:02:19 +0000 | [diff] [blame] | 3136 | #include "X86GenAsmMatcher.inc" |