Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "slang_rs_object_ref_count.h" |
| 18 | |
Stephen Hines | e639eb5 | 2010-11-08 19:27:20 -0800 | [diff] [blame] | 19 | #include <list> |
| 20 | |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 21 | #include "clang/AST/DeclGroup.h" |
| 22 | #include "clang/AST/Expr.h" |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 23 | #include "clang/AST/NestedNameSpecifier.h" |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 24 | #include "clang/AST/OperationKinds.h" |
| 25 | #include "clang/AST/Stmt.h" |
| 26 | #include "clang/AST/StmtVisitor.h" |
| 27 | |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 28 | #include "slang_assert.h" |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 29 | #include "slang_rs.h" |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 30 | #include "slang_rs_ast_replace.h" |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 31 | #include "slang_rs_export_type.h" |
| 32 | |
Stephen Hines | e639eb5 | 2010-11-08 19:27:20 -0800 | [diff] [blame] | 33 | namespace slang { |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 34 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 35 | clang::FunctionDecl *RSObjectRefCount:: |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 36 | RSSetObjectFD[RSExportPrimitiveType::LastRSObjectType - |
| 37 | RSExportPrimitiveType::FirstRSObjectType + 1]; |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 38 | clang::FunctionDecl *RSObjectRefCount:: |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 39 | RSClearObjectFD[RSExportPrimitiveType::LastRSObjectType - |
| 40 | RSExportPrimitiveType::FirstRSObjectType + 1]; |
| 41 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 42 | void RSObjectRefCount::GetRSRefCountingFunctions(clang::ASTContext &C) { |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 43 | for (unsigned i = 0; |
| 44 | i < (sizeof(RSClearObjectFD) / sizeof(clang::FunctionDecl*)); |
| 45 | i++) { |
| 46 | RSSetObjectFD[i] = NULL; |
| 47 | RSClearObjectFD[i] = NULL; |
| 48 | } |
| 49 | |
| 50 | clang::TranslationUnitDecl *TUDecl = C.getTranslationUnitDecl(); |
| 51 | |
| 52 | for (clang::DeclContext::decl_iterator I = TUDecl->decls_begin(), |
| 53 | E = TUDecl->decls_end(); I != E; I++) { |
| 54 | if ((I->getKind() >= clang::Decl::firstFunction) && |
| 55 | (I->getKind() <= clang::Decl::lastFunction)) { |
| 56 | clang::FunctionDecl *FD = static_cast<clang::FunctionDecl*>(*I); |
| 57 | |
| 58 | // points to RSSetObjectFD or RSClearObjectFD |
| 59 | clang::FunctionDecl **RSObjectFD; |
| 60 | |
| 61 | if (FD->getName() == "rsSetObject") { |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 62 | slangAssert((FD->getNumParams() == 2) && |
| 63 | "Invalid rsSetObject function prototype (# params)"); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 64 | RSObjectFD = RSSetObjectFD; |
| 65 | } else if (FD->getName() == "rsClearObject") { |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 66 | slangAssert((FD->getNumParams() == 1) && |
| 67 | "Invalid rsClearObject function prototype (# params)"); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 68 | RSObjectFD = RSClearObjectFD; |
Stephen Hines | e639eb5 | 2010-11-08 19:27:20 -0800 | [diff] [blame] | 69 | } else { |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 70 | continue; |
| 71 | } |
| 72 | |
| 73 | const clang::ParmVarDecl *PVD = FD->getParamDecl(0); |
| 74 | clang::QualType PVT = PVD->getOriginalType(); |
| 75 | // The first parameter must be a pointer like rs_allocation* |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 76 | slangAssert(PVT->isPointerType() && |
| 77 | "Invalid rs{Set,Clear}Object function prototype (pointer param)"); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 78 | |
| 79 | // The rs object type passed to the FD |
| 80 | clang::QualType RST = PVT->getPointeeType(); |
| 81 | RSExportPrimitiveType::DataType DT = |
| 82 | RSExportPrimitiveType::GetRSSpecificType(RST.getTypePtr()); |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 83 | slangAssert(RSExportPrimitiveType::IsRSObjectType(DT) |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 84 | && "must be RS object type"); |
| 85 | |
| 86 | RSObjectFD[(DT - RSExportPrimitiveType::FirstRSObjectType)] = FD; |
| 87 | } |
| 88 | } |
| 89 | } |
| 90 | |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 91 | namespace { |
| 92 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 93 | // This function constructs a new CompoundStmt from the input StmtList. |
| 94 | static clang::CompoundStmt* BuildCompoundStmt(clang::ASTContext &C, |
| 95 | std::list<clang::Stmt*> &StmtList, clang::SourceLocation Loc) { |
Stephen Hines | d5f9d6c | 2010-12-15 16:11:29 -0800 | [diff] [blame] | 96 | unsigned NewStmtCount = StmtList.size(); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 97 | unsigned CompoundStmtCount = 0; |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 98 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 99 | clang::Stmt **CompoundStmtList; |
| 100 | CompoundStmtList = new clang::Stmt*[NewStmtCount]; |
| 101 | |
| 102 | std::list<clang::Stmt*>::const_iterator I = StmtList.begin(); |
| 103 | std::list<clang::Stmt*>::const_iterator E = StmtList.end(); |
| 104 | for ( ; I != E; I++) { |
| 105 | CompoundStmtList[CompoundStmtCount++] = *I; |
| 106 | } |
| 107 | slangAssert(CompoundStmtCount == NewStmtCount); |
| 108 | |
| 109 | clang::CompoundStmt *CS = new(C) clang::CompoundStmt(C, |
| 110 | CompoundStmtList, |
| 111 | CompoundStmtCount, |
| 112 | Loc, |
| 113 | Loc); |
| 114 | |
| 115 | delete [] CompoundStmtList; |
| 116 | |
| 117 | return CS; |
| 118 | } |
| 119 | |
| 120 | static void AppendAfterStmt(clang::ASTContext &C, |
| 121 | clang::CompoundStmt *CS, |
| 122 | clang::Stmt *S, |
| 123 | std::list<clang::Stmt*> &StmtList) { |
| 124 | slangAssert(CS); |
| 125 | clang::CompoundStmt::body_iterator bI = CS->body_begin(); |
| 126 | clang::CompoundStmt::body_iterator bE = CS->body_end(); |
| 127 | clang::Stmt **UpdatedStmtList = |
| 128 | new clang::Stmt*[CS->size() + StmtList.size()]; |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 129 | |
| 130 | unsigned UpdatedStmtCount = 0; |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 131 | unsigned Once = 0; |
| 132 | for ( ; bI != bE; bI++) { |
| 133 | if (!S && ((*bI)->getStmtClass() == clang::Stmt::ReturnStmtClass)) { |
| 134 | // If we come across a return here, we don't have anything we can |
| 135 | // reasonably replace. We should have already inserted our destructor |
| 136 | // code in the proper spot, so we just clean up and return. |
| 137 | delete [] UpdatedStmtList; |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 138 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 139 | return; |
| 140 | } |
| 141 | |
| 142 | UpdatedStmtList[UpdatedStmtCount++] = *bI; |
| 143 | |
| 144 | if ((*bI == S) && !Once) { |
| 145 | Once++; |
| 146 | std::list<clang::Stmt*>::const_iterator I = StmtList.begin(); |
| 147 | std::list<clang::Stmt*>::const_iterator E = StmtList.end(); |
| 148 | for ( ; I != E; I++) { |
| 149 | UpdatedStmtList[UpdatedStmtCount++] = *I; |
| 150 | } |
| 151 | } |
| 152 | } |
| 153 | slangAssert(Once <= 1); |
| 154 | |
| 155 | // When S is NULL, we are appending to the end of the CompoundStmt. |
| 156 | if (!S) { |
| 157 | slangAssert(Once == 0); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 158 | std::list<clang::Stmt*>::const_iterator I = StmtList.begin(); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 159 | std::list<clang::Stmt*>::const_iterator E = StmtList.end(); |
| 160 | for ( ; I != E; I++) { |
Stephen Hines | d5f9d6c | 2010-12-15 16:11:29 -0800 | [diff] [blame] | 161 | UpdatedStmtList[UpdatedStmtCount++] = *I; |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 162 | } |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 163 | } |
| 164 | |
Stephen Hines | d5f9d6c | 2010-12-15 16:11:29 -0800 | [diff] [blame] | 165 | CS->setStmts(C, UpdatedStmtList, UpdatedStmtCount); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 166 | |
Stephen Hines | d5f9d6c | 2010-12-15 16:11:29 -0800 | [diff] [blame] | 167 | delete [] UpdatedStmtList; |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 168 | |
| 169 | return; |
| 170 | } |
| 171 | |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 172 | // This class visits a compound statement and inserts DtorStmt |
| 173 | // in proper locations. This includes inserting it before any |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 174 | // return statement in any sub-block, at the end of the logical enclosing |
| 175 | // scope (compound statement), and/or before any break/continue statement that |
| 176 | // would resume outside the declared scope. We will not handle the case for |
| 177 | // goto statements that leave a local scope. |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 178 | // |
| 179 | // To accomplish these goals, it collects a list of sub-Stmt's that |
| 180 | // correspond to scope exit points. It then uses an RSASTReplace visitor to |
| 181 | // transform the AST, inserting appropriate destructors before each of those |
| 182 | // sub-Stmt's (and also before the exit of the outermost containing Stmt for |
| 183 | // the scope). |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 184 | class DestructorVisitor : public clang::StmtVisitor<DestructorVisitor> { |
| 185 | private: |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 186 | clang::ASTContext &mCtx; |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 187 | |
| 188 | // The loop depth of the currently visited node. |
| 189 | int mLoopDepth; |
| 190 | |
| 191 | // The switch statement depth of the currently visited node. |
| 192 | // Note that this is tracked separately from the loop depth because |
| 193 | // SwitchStmt-contained ContinueStmt's should have destructors for the |
| 194 | // corresponding loop scope. |
| 195 | int mSwitchDepth; |
| 196 | |
| 197 | // The outermost statement block that we are currently visiting. |
| 198 | // This should always be a CompoundStmt. |
| 199 | clang::Stmt *mOuterStmt; |
| 200 | |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 201 | // The destructor to execute for this scope/variable. |
| 202 | clang::Stmt* mDtorStmt; |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 203 | |
| 204 | // The stack of statements which should be replaced by a compound statement |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 205 | // containing the new destructor call followed by the original Stmt. |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 206 | std::stack<clang::Stmt*> mReplaceStmtStack; |
| 207 | |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 208 | // The source location for the variable declaration that we are trying to |
| 209 | // insert destructors for. Note that InsertDestructors() will not generate |
| 210 | // destructor calls for source locations that occur lexically before this |
| 211 | // location. |
| 212 | clang::SourceLocation mVarLoc; |
| 213 | |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 214 | public: |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 215 | DestructorVisitor(clang::ASTContext &C, |
| 216 | clang::Stmt* OuterStmt, |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 217 | clang::Stmt* DtorStmt, |
| 218 | clang::SourceLocation VarLoc); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 219 | |
| 220 | // This code walks the collected list of Stmts to replace and actually does |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 221 | // the replacement. It also finishes up by appending the destructor to the |
| 222 | // current outermost CompoundStmt. |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 223 | void InsertDestructors() { |
| 224 | clang::Stmt *S = NULL; |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 225 | clang::SourceManager &SM = mCtx.getSourceManager(); |
| 226 | std::list<clang::Stmt *> StmtList; |
| 227 | StmtList.push_back(mDtorStmt); |
| 228 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 229 | while (!mReplaceStmtStack.empty()) { |
| 230 | S = mReplaceStmtStack.top(); |
| 231 | mReplaceStmtStack.pop(); |
| 232 | |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 233 | // Skip all source locations that occur before the variable's |
| 234 | // declaration, since it won't have been initialized yet. |
| 235 | if (SM.isBeforeInTranslationUnit(S->getLocStart(), mVarLoc)) { |
| 236 | continue; |
| 237 | } |
| 238 | |
| 239 | StmtList.push_back(S); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 240 | clang::CompoundStmt *CS = |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 241 | BuildCompoundStmt(mCtx, StmtList, S->getLocEnd()); |
| 242 | StmtList.pop_back(); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 243 | |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 244 | RSASTReplace R(mCtx); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 245 | R.ReplaceStmt(mOuterStmt, S, CS); |
| 246 | } |
Logan Chien | ab992e5 | 2011-07-20 22:06:52 +0800 | [diff] [blame] | 247 | clang::CompoundStmt *CS = |
| 248 | llvm::dyn_cast<clang::CompoundStmt>(mOuterStmt); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 249 | slangAssert(CS); |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 250 | AppendAfterStmt(mCtx, CS, NULL, StmtList); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 251 | } |
| 252 | |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 253 | void VisitStmt(clang::Stmt *S); |
| 254 | void VisitCompoundStmt(clang::CompoundStmt *CS); |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 255 | |
| 256 | void VisitBreakStmt(clang::BreakStmt *BS); |
| 257 | void VisitCaseStmt(clang::CaseStmt *CS); |
| 258 | void VisitContinueStmt(clang::ContinueStmt *CS); |
| 259 | void VisitDefaultStmt(clang::DefaultStmt *DS); |
| 260 | void VisitDoStmt(clang::DoStmt *DS); |
| 261 | void VisitForStmt(clang::ForStmt *FS); |
| 262 | void VisitIfStmt(clang::IfStmt *IS); |
| 263 | void VisitReturnStmt(clang::ReturnStmt *RS); |
| 264 | void VisitSwitchCase(clang::SwitchCase *SC); |
| 265 | void VisitSwitchStmt(clang::SwitchStmt *SS); |
| 266 | void VisitWhileStmt(clang::WhileStmt *WS); |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 267 | }; |
| 268 | |
| 269 | DestructorVisitor::DestructorVisitor(clang::ASTContext &C, |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 270 | clang::Stmt *OuterStmt, |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 271 | clang::Stmt *DtorStmt, |
| 272 | clang::SourceLocation VarLoc) |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 273 | : mCtx(C), |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 274 | mLoopDepth(0), |
| 275 | mSwitchDepth(0), |
| 276 | mOuterStmt(OuterStmt), |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 277 | mDtorStmt(DtorStmt), |
| 278 | mVarLoc(VarLoc) { |
Stephen Hines | 4464d82 | 2010-11-11 16:45:08 -0800 | [diff] [blame] | 279 | return; |
| 280 | } |
| 281 | |
| 282 | void DestructorVisitor::VisitStmt(clang::Stmt *S) { |
| 283 | for (clang::Stmt::child_iterator I = S->child_begin(), E = S->child_end(); |
| 284 | I != E; |
| 285 | I++) { |
| 286 | if (clang::Stmt *Child = *I) { |
| 287 | Visit(Child); |
| 288 | } |
| 289 | } |
| 290 | return; |
| 291 | } |
| 292 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 293 | void DestructorVisitor::VisitCompoundStmt(clang::CompoundStmt *CS) { |
| 294 | VisitStmt(CS); |
| 295 | return; |
| 296 | } |
| 297 | |
| 298 | void DestructorVisitor::VisitBreakStmt(clang::BreakStmt *BS) { |
| 299 | VisitStmt(BS); |
| 300 | if ((mLoopDepth == 0) && (mSwitchDepth == 0)) { |
| 301 | mReplaceStmtStack.push(BS); |
| 302 | } |
| 303 | return; |
| 304 | } |
| 305 | |
| 306 | void DestructorVisitor::VisitCaseStmt(clang::CaseStmt *CS) { |
| 307 | VisitStmt(CS); |
| 308 | return; |
| 309 | } |
| 310 | |
| 311 | void DestructorVisitor::VisitContinueStmt(clang::ContinueStmt *CS) { |
| 312 | VisitStmt(CS); |
| 313 | if (mLoopDepth == 0) { |
| 314 | // Switch statements can have nested continues. |
| 315 | mReplaceStmtStack.push(CS); |
| 316 | } |
| 317 | return; |
| 318 | } |
| 319 | |
| 320 | void DestructorVisitor::VisitDefaultStmt(clang::DefaultStmt *DS) { |
| 321 | VisitStmt(DS); |
| 322 | return; |
| 323 | } |
| 324 | |
| 325 | void DestructorVisitor::VisitDoStmt(clang::DoStmt *DS) { |
| 326 | mLoopDepth++; |
| 327 | VisitStmt(DS); |
| 328 | mLoopDepth--; |
| 329 | return; |
| 330 | } |
| 331 | |
| 332 | void DestructorVisitor::VisitForStmt(clang::ForStmt *FS) { |
| 333 | mLoopDepth++; |
| 334 | VisitStmt(FS); |
| 335 | mLoopDepth--; |
| 336 | return; |
| 337 | } |
| 338 | |
| 339 | void DestructorVisitor::VisitIfStmt(clang::IfStmt *IS) { |
| 340 | VisitStmt(IS); |
| 341 | return; |
| 342 | } |
| 343 | |
| 344 | void DestructorVisitor::VisitReturnStmt(clang::ReturnStmt *RS) { |
| 345 | mReplaceStmtStack.push(RS); |
| 346 | return; |
| 347 | } |
| 348 | |
| 349 | void DestructorVisitor::VisitSwitchCase(clang::SwitchCase *SC) { |
| 350 | slangAssert(false && "Both case and default have specialized handlers"); |
| 351 | VisitStmt(SC); |
| 352 | return; |
| 353 | } |
| 354 | |
| 355 | void DestructorVisitor::VisitSwitchStmt(clang::SwitchStmt *SS) { |
| 356 | mSwitchDepth++; |
| 357 | VisitStmt(SS); |
| 358 | mSwitchDepth--; |
| 359 | return; |
| 360 | } |
| 361 | |
| 362 | void DestructorVisitor::VisitWhileStmt(clang::WhileStmt *WS) { |
| 363 | mLoopDepth++; |
| 364 | VisitStmt(WS); |
| 365 | mLoopDepth--; |
| 366 | return; |
| 367 | } |
| 368 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 369 | clang::Expr *ClearSingleRSObject(clang::ASTContext &C, |
| 370 | clang::Expr *RefRSVar, |
| 371 | clang::SourceLocation Loc) { |
| 372 | slangAssert(RefRSVar); |
| 373 | const clang::Type *T = RefRSVar->getType().getTypePtr(); |
| 374 | slangAssert(!T->isArrayType() && |
| 375 | "Should not be destroying arrays with this function"); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 376 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 377 | clang::FunctionDecl *ClearObjectFD = RSObjectRefCount::GetRSClearObjectFD(T); |
| 378 | slangAssert((ClearObjectFD != NULL) && |
| 379 | "rsClearObject doesn't cover all RS object types"); |
| 380 | |
| 381 | clang::QualType ClearObjectFDType = ClearObjectFD->getType(); |
| 382 | clang::QualType ClearObjectFDArgType = |
| 383 | ClearObjectFD->getParamDecl(0)->getOriginalType(); |
| 384 | |
| 385 | // Example destructor for "rs_font localFont;" |
| 386 | // |
| 387 | // (CallExpr 'void' |
| 388 | // (ImplicitCastExpr 'void (*)(rs_font *)' <FunctionToPointerDecay> |
| 389 | // (DeclRefExpr 'void (rs_font *)' FunctionDecl='rsClearObject')) |
| 390 | // (UnaryOperator 'rs_font *' prefix '&' |
| 391 | // (DeclRefExpr 'rs_font':'rs_font' Var='localFont'))) |
| 392 | |
| 393 | // Get address of targeted RS object |
| 394 | clang::Expr *AddrRefRSVar = |
| 395 | new(C) clang::UnaryOperator(RefRSVar, |
| 396 | clang::UO_AddrOf, |
| 397 | ClearObjectFDArgType, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 398 | clang::VK_RValue, |
| 399 | clang::OK_Ordinary, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 400 | Loc); |
| 401 | |
| 402 | clang::Expr *RefRSClearObjectFD = |
| 403 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 404 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 405 | clang::SourceLocation(), |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 406 | ClearObjectFD, |
Shih-wei Liao | e2597ac | 2012-03-24 02:44:33 -0700 | [diff] [blame] | 407 | false, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 408 | ClearObjectFD->getLocation(), |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 409 | ClearObjectFDType, |
| 410 | clang::VK_RValue, |
| 411 | NULL); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 412 | |
| 413 | clang::Expr *RSClearObjectFP = |
| 414 | clang::ImplicitCastExpr::Create(C, |
| 415 | C.getPointerType(ClearObjectFDType), |
| 416 | clang::CK_FunctionToPointerDecay, |
| 417 | RefRSClearObjectFD, |
| 418 | NULL, |
| 419 | clang::VK_RValue); |
| 420 | |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 421 | llvm::SmallVector<clang::Expr*, 1> ArgList; |
| 422 | ArgList.push_back(AddrRefRSVar); |
| 423 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 424 | clang::CallExpr *RSClearObjectCall = |
| 425 | new(C) clang::CallExpr(C, |
| 426 | RSClearObjectFP, |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 427 | ArgList, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 428 | ClearObjectFD->getCallResultType(), |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 429 | clang::VK_RValue, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 430 | Loc); |
| 431 | |
| 432 | return RSClearObjectCall; |
| 433 | } |
| 434 | |
| 435 | static int ArrayDim(const clang::Type *T) { |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 436 | if (!T || !T->isArrayType()) { |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | const clang::ConstantArrayType *CAT = |
| 441 | static_cast<const clang::ConstantArrayType *>(T); |
Stephen Hines | 9d2c0fa | 2011-01-05 14:55:18 -0800 | [diff] [blame] | 442 | return static_cast<int>(CAT->getSize().getSExtValue()); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 443 | } |
| 444 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 445 | static clang::Stmt *ClearStructRSObject( |
| 446 | clang::ASTContext &C, |
| 447 | clang::DeclContext *DC, |
| 448 | clang::Expr *RefRSStruct, |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 449 | clang::SourceLocation StartLoc, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 450 | clang::SourceLocation Loc); |
| 451 | |
| 452 | static clang::Stmt *ClearArrayRSObject( |
| 453 | clang::ASTContext &C, |
| 454 | clang::DeclContext *DC, |
| 455 | clang::Expr *RefRSArr, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 456 | clang::SourceLocation StartLoc, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 457 | clang::SourceLocation Loc) { |
| 458 | const clang::Type *BaseType = RefRSArr->getType().getTypePtr(); |
| 459 | slangAssert(BaseType->isArrayType()); |
| 460 | |
| 461 | int NumArrayElements = ArrayDim(BaseType); |
| 462 | // Actually extract out the base RS object type for use later |
| 463 | BaseType = BaseType->getArrayElementTypeNoTypeQual(); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 464 | |
| 465 | clang::Stmt *StmtArray[2] = {NULL}; |
| 466 | int StmtCtr = 0; |
| 467 | |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 468 | if (NumArrayElements <= 0) { |
| 469 | return NULL; |
| 470 | } |
| 471 | |
| 472 | // Example destructor loop for "rs_font fontArr[10];" |
| 473 | // |
| 474 | // (CompoundStmt |
| 475 | // (DeclStmt "int rsIntIter") |
| 476 | // (ForStmt |
| 477 | // (BinaryOperator 'int' '=' |
| 478 | // (DeclRefExpr 'int' Var='rsIntIter') |
| 479 | // (IntegerLiteral 'int' 0)) |
| 480 | // (BinaryOperator 'int' '<' |
| 481 | // (DeclRefExpr 'int' Var='rsIntIter') |
| 482 | // (IntegerLiteral 'int' 10) |
| 483 | // NULL << CondVar >> |
| 484 | // (UnaryOperator 'int' postfix '++' |
| 485 | // (DeclRefExpr 'int' Var='rsIntIter')) |
| 486 | // (CallExpr 'void' |
| 487 | // (ImplicitCastExpr 'void (*)(rs_font *)' <FunctionToPointerDecay> |
| 488 | // (DeclRefExpr 'void (rs_font *)' FunctionDecl='rsClearObject')) |
| 489 | // (UnaryOperator 'rs_font *' prefix '&' |
| 490 | // (ArraySubscriptExpr 'rs_font':'rs_font' |
| 491 | // (ImplicitCastExpr 'rs_font *' <ArrayToPointerDecay> |
| 492 | // (DeclRefExpr 'rs_font [10]' Var='fontArr')) |
| 493 | // (DeclRefExpr 'int' Var='rsIntIter'))))))) |
| 494 | |
| 495 | // Create helper variable for iterating through elements |
| 496 | clang::IdentifierInfo& II = C.Idents.get("rsIntIter"); |
| 497 | clang::VarDecl *IIVD = |
| 498 | clang::VarDecl::Create(C, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 499 | DC, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 500 | StartLoc, |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 501 | Loc, |
| 502 | &II, |
| 503 | C.IntTy, |
| 504 | C.getTrivialTypeSourceInfo(C.IntTy), |
| 505 | clang::SC_None, |
| 506 | clang::SC_None); |
| 507 | clang::Decl *IID = (clang::Decl *)IIVD; |
| 508 | |
| 509 | clang::DeclGroupRef DGR = clang::DeclGroupRef::Create(C, &IID, 1); |
| 510 | StmtArray[StmtCtr++] = new(C) clang::DeclStmt(DGR, Loc, Loc); |
| 511 | |
| 512 | // Form the actual destructor loop |
| 513 | // for (Init; Cond; Inc) |
| 514 | // RSClearObjectCall; |
| 515 | |
| 516 | // Init -> "rsIntIter = 0" |
| 517 | clang::DeclRefExpr *RefrsIntIter = |
| 518 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 519 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 520 | clang::SourceLocation(), |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 521 | IIVD, |
Shih-wei Liao | e2597ac | 2012-03-24 02:44:33 -0700 | [diff] [blame] | 522 | false, |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 523 | Loc, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 524 | C.IntTy, |
| 525 | clang::VK_RValue, |
| 526 | NULL); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 527 | |
| 528 | clang::Expr *Int0 = clang::IntegerLiteral::Create(C, |
| 529 | llvm::APInt(C.getTypeSize(C.IntTy), 0), C.IntTy, Loc); |
| 530 | |
| 531 | clang::BinaryOperator *Init = |
| 532 | new(C) clang::BinaryOperator(RefrsIntIter, |
| 533 | Int0, |
| 534 | clang::BO_Assign, |
| 535 | C.IntTy, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 536 | clang::VK_RValue, |
| 537 | clang::OK_Ordinary, |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 538 | Loc); |
| 539 | |
| 540 | // Cond -> "rsIntIter < NumArrayElements" |
| 541 | clang::Expr *NumArrayElementsExpr = clang::IntegerLiteral::Create(C, |
| 542 | llvm::APInt(C.getTypeSize(C.IntTy), NumArrayElements), C.IntTy, Loc); |
| 543 | |
| 544 | clang::BinaryOperator *Cond = |
| 545 | new(C) clang::BinaryOperator(RefrsIntIter, |
| 546 | NumArrayElementsExpr, |
| 547 | clang::BO_LT, |
| 548 | C.IntTy, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 549 | clang::VK_RValue, |
| 550 | clang::OK_Ordinary, |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 551 | Loc); |
| 552 | |
| 553 | // Inc -> "rsIntIter++" |
| 554 | clang::UnaryOperator *Inc = |
| 555 | new(C) clang::UnaryOperator(RefrsIntIter, |
| 556 | clang::UO_PostInc, |
| 557 | C.IntTy, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 558 | clang::VK_RValue, |
| 559 | clang::OK_Ordinary, |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 560 | Loc); |
| 561 | |
| 562 | // Body -> "rsClearObject(&VD[rsIntIter]);" |
| 563 | // Destructor loop operates on individual array elements |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 564 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 565 | clang::Expr *RefRSArrPtr = |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 566 | clang::ImplicitCastExpr::Create(C, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 567 | C.getPointerType(BaseType->getCanonicalTypeInternal()), |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 568 | clang::CK_ArrayToPointerDecay, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 569 | RefRSArr, |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 570 | NULL, |
| 571 | clang::VK_RValue); |
| 572 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 573 | clang::Expr *RefRSArrPtrSubscript = |
| 574 | new(C) clang::ArraySubscriptExpr(RefRSArrPtr, |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 575 | RefrsIntIter, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 576 | BaseType->getCanonicalTypeInternal(), |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 577 | clang::VK_RValue, |
| 578 | clang::OK_Ordinary, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 579 | Loc); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 580 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 581 | RSExportPrimitiveType::DataType DT = |
| 582 | RSExportPrimitiveType::GetRSSpecificType(BaseType); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 583 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 584 | clang::Stmt *RSClearObjectCall = NULL; |
| 585 | if (BaseType->isArrayType()) { |
| 586 | RSClearObjectCall = |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 587 | ClearArrayRSObject(C, DC, RefRSArrPtrSubscript, StartLoc, Loc); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 588 | } else if (DT == RSExportPrimitiveType::DataTypeUnknown) { |
| 589 | RSClearObjectCall = |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 590 | ClearStructRSObject(C, DC, RefRSArrPtrSubscript, StartLoc, Loc); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 591 | } else { |
| 592 | RSClearObjectCall = ClearSingleRSObject(C, RefRSArrPtrSubscript, Loc); |
| 593 | } |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 594 | |
| 595 | clang::ForStmt *DestructorLoop = |
| 596 | new(C) clang::ForStmt(C, |
| 597 | Init, |
| 598 | Cond, |
| 599 | NULL, // no condVar |
| 600 | Inc, |
| 601 | RSClearObjectCall, |
| 602 | Loc, |
| 603 | Loc, |
| 604 | Loc); |
| 605 | |
| 606 | StmtArray[StmtCtr++] = DestructorLoop; |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 607 | slangAssert(StmtCtr == 2); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 608 | |
| 609 | clang::CompoundStmt *CS = |
| 610 | new(C) clang::CompoundStmt(C, StmtArray, StmtCtr, Loc, Loc); |
| 611 | |
| 612 | return CS; |
| 613 | } |
| 614 | |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 615 | static unsigned CountRSObjectTypes(clang::ASTContext &C, |
| 616 | const clang::Type *T, |
| 617 | clang::SourceLocation Loc) { |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 618 | slangAssert(T); |
| 619 | unsigned RSObjectCount = 0; |
| 620 | |
| 621 | if (T->isArrayType()) { |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 622 | return CountRSObjectTypes(C, T->getArrayElementTypeNoTypeQual(), Loc); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 623 | } |
| 624 | |
| 625 | RSExportPrimitiveType::DataType DT = |
| 626 | RSExportPrimitiveType::GetRSSpecificType(T); |
| 627 | if (DT != RSExportPrimitiveType::DataTypeUnknown) { |
| 628 | return (RSExportPrimitiveType::IsRSObjectType(DT) ? 1 : 0); |
| 629 | } |
| 630 | |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 631 | if (T->isUnionType()) { |
| 632 | clang::RecordDecl *RD = T->getAsUnionType()->getDecl(); |
| 633 | RD = RD->getDefinition(); |
| 634 | for (clang::RecordDecl::field_iterator FI = RD->field_begin(), |
| 635 | FE = RD->field_end(); |
| 636 | FI != FE; |
| 637 | FI++) { |
| 638 | const clang::FieldDecl *FD = *FI; |
| 639 | const clang::Type *FT = RSExportType::GetTypeOfDecl(FD); |
| 640 | if (CountRSObjectTypes(C, FT, Loc)) { |
Stephen Hines | 78e69cb | 2011-04-22 15:03:19 -0700 | [diff] [blame] | 641 | slangAssert(false && "can't have unions with RS object types!"); |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 642 | return 0; |
| 643 | } |
| 644 | } |
| 645 | } |
| 646 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 647 | if (!T->isStructureType()) { |
| 648 | return 0; |
| 649 | } |
| 650 | |
| 651 | clang::RecordDecl *RD = T->getAsStructureType()->getDecl(); |
| 652 | RD = RD->getDefinition(); |
| 653 | for (clang::RecordDecl::field_iterator FI = RD->field_begin(), |
| 654 | FE = RD->field_end(); |
| 655 | FI != FE; |
| 656 | FI++) { |
| 657 | const clang::FieldDecl *FD = *FI; |
| 658 | const clang::Type *FT = RSExportType::GetTypeOfDecl(FD); |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 659 | if (CountRSObjectTypes(C, FT, Loc)) { |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 660 | // Sub-structs should only count once (as should arrays, etc.) |
| 661 | RSObjectCount++; |
| 662 | } |
| 663 | } |
| 664 | |
| 665 | return RSObjectCount; |
| 666 | } |
| 667 | |
| 668 | static clang::Stmt *ClearStructRSObject( |
| 669 | clang::ASTContext &C, |
| 670 | clang::DeclContext *DC, |
| 671 | clang::Expr *RefRSStruct, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 672 | clang::SourceLocation StartLoc, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 673 | clang::SourceLocation Loc) { |
| 674 | const clang::Type *BaseType = RefRSStruct->getType().getTypePtr(); |
| 675 | |
| 676 | slangAssert(!BaseType->isArrayType()); |
| 677 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 678 | // Structs should show up as unknown primitive types |
Alex Sakhartchouk | 9be9360 | 2011-03-17 17:03:36 -0700 | [diff] [blame] | 679 | slangAssert(RSExportPrimitiveType::GetRSSpecificType(BaseType) == |
| 680 | RSExportPrimitiveType::DataTypeUnknown); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 681 | |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 682 | unsigned FieldsToDestroy = CountRSObjectTypes(C, BaseType, Loc); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 683 | |
| 684 | unsigned StmtCount = 0; |
| 685 | clang::Stmt **StmtArray = new clang::Stmt*[FieldsToDestroy]; |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 686 | for (unsigned i = 0; i < FieldsToDestroy; i++) { |
| 687 | StmtArray[i] = NULL; |
| 688 | } |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 689 | |
| 690 | // Populate StmtArray by creating a destructor for each RS object field |
| 691 | clang::RecordDecl *RD = BaseType->getAsStructureType()->getDecl(); |
| 692 | RD = RD->getDefinition(); |
| 693 | for (clang::RecordDecl::field_iterator FI = RD->field_begin(), |
| 694 | FE = RD->field_end(); |
| 695 | FI != FE; |
| 696 | FI++) { |
| 697 | // We just look through all field declarations to see if we find a |
| 698 | // declaration for an RS object type (or an array of one). |
| 699 | bool IsArrayType = false; |
| 700 | clang::FieldDecl *FD = *FI; |
| 701 | const clang::Type *FT = RSExportType::GetTypeOfDecl(FD); |
| 702 | const clang::Type *OrigType = FT; |
| 703 | while (FT && FT->isArrayType()) { |
| 704 | FT = FT->getArrayElementTypeNoTypeQual(); |
| 705 | IsArrayType = true; |
| 706 | } |
| 707 | |
| 708 | if (RSExportPrimitiveType::IsRSObjectType(FT)) { |
| 709 | clang::DeclAccessPair FoundDecl = |
| 710 | clang::DeclAccessPair::make(FD, clang::AS_none); |
| 711 | clang::MemberExpr *RSObjectMember = |
| 712 | clang::MemberExpr::Create(C, |
| 713 | RefRSStruct, |
| 714 | false, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 715 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 716 | clang::SourceLocation(), |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 717 | FD, |
| 718 | FoundDecl, |
| 719 | clang::DeclarationNameInfo(), |
| 720 | NULL, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 721 | OrigType->getCanonicalTypeInternal(), |
| 722 | clang::VK_RValue, |
| 723 | clang::OK_Ordinary); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 724 | |
| 725 | slangAssert(StmtCount < FieldsToDestroy); |
| 726 | |
| 727 | if (IsArrayType) { |
| 728 | StmtArray[StmtCount++] = ClearArrayRSObject(C, |
| 729 | DC, |
| 730 | RSObjectMember, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 731 | StartLoc, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 732 | Loc); |
| 733 | } else { |
| 734 | StmtArray[StmtCount++] = ClearSingleRSObject(C, |
| 735 | RSObjectMember, |
| 736 | Loc); |
| 737 | } |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 738 | } else if (FT->isStructureType() && CountRSObjectTypes(C, FT, Loc)) { |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 739 | // In this case, we have a nested struct. We may not end up filling all |
| 740 | // of the spaces in StmtArray (sub-structs should handle themselves |
| 741 | // with separate compound statements). |
| 742 | clang::DeclAccessPair FoundDecl = |
| 743 | clang::DeclAccessPair::make(FD, clang::AS_none); |
| 744 | clang::MemberExpr *RSObjectMember = |
| 745 | clang::MemberExpr::Create(C, |
| 746 | RefRSStruct, |
| 747 | false, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 748 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 749 | clang::SourceLocation(), |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 750 | FD, |
| 751 | FoundDecl, |
| 752 | clang::DeclarationNameInfo(), |
| 753 | NULL, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 754 | OrigType->getCanonicalTypeInternal(), |
| 755 | clang::VK_RValue, |
| 756 | clang::OK_Ordinary); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 757 | |
| 758 | if (IsArrayType) { |
| 759 | StmtArray[StmtCount++] = ClearArrayRSObject(C, |
| 760 | DC, |
| 761 | RSObjectMember, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 762 | StartLoc, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 763 | Loc); |
| 764 | } else { |
| 765 | StmtArray[StmtCount++] = ClearStructRSObject(C, |
| 766 | DC, |
| 767 | RSObjectMember, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 768 | StartLoc, |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 769 | Loc); |
| 770 | } |
| 771 | } |
| 772 | } |
| 773 | |
| 774 | slangAssert(StmtCount > 0); |
| 775 | clang::CompoundStmt *CS = |
| 776 | new(C) clang::CompoundStmt(C, StmtArray, StmtCount, Loc, Loc); |
| 777 | |
| 778 | delete [] StmtArray; |
| 779 | |
| 780 | return CS; |
| 781 | } |
| 782 | |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 783 | static clang::Stmt *CreateSingleRSSetObject(clang::ASTContext &C, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 784 | clang::Expr *DstExpr, |
| 785 | clang::Expr *SrcExpr, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 786 | clang::SourceLocation StartLoc, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 787 | clang::SourceLocation Loc) { |
| 788 | const clang::Type *T = DstExpr->getType().getTypePtr(); |
| 789 | clang::FunctionDecl *SetObjectFD = RSObjectRefCount::GetRSSetObjectFD(T); |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 790 | slangAssert((SetObjectFD != NULL) && |
| 791 | "rsSetObject doesn't cover all RS object types"); |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 792 | |
| 793 | clang::QualType SetObjectFDType = SetObjectFD->getType(); |
| 794 | clang::QualType SetObjectFDArgType[2]; |
| 795 | SetObjectFDArgType[0] = SetObjectFD->getParamDecl(0)->getOriginalType(); |
| 796 | SetObjectFDArgType[1] = SetObjectFD->getParamDecl(1)->getOriginalType(); |
| 797 | |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 798 | clang::Expr *RefRSSetObjectFD = |
| 799 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 800 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 801 | clang::SourceLocation(), |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 802 | SetObjectFD, |
Shih-wei Liao | e2597ac | 2012-03-24 02:44:33 -0700 | [diff] [blame] | 803 | false, |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 804 | Loc, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 805 | SetObjectFDType, |
| 806 | clang::VK_RValue, |
| 807 | NULL); |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 808 | |
| 809 | clang::Expr *RSSetObjectFP = |
| 810 | clang::ImplicitCastExpr::Create(C, |
| 811 | C.getPointerType(SetObjectFDType), |
| 812 | clang::CK_FunctionToPointerDecay, |
| 813 | RefRSSetObjectFD, |
| 814 | NULL, |
| 815 | clang::VK_RValue); |
| 816 | |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 817 | llvm::SmallVector<clang::Expr*, 2> ArgList; |
| 818 | ArgList.push_back(new(C) clang::UnaryOperator(DstExpr, |
| 819 | clang::UO_AddrOf, |
| 820 | SetObjectFDArgType[0], |
| 821 | clang::VK_RValue, |
| 822 | clang::OK_Ordinary, |
| 823 | Loc)); |
| 824 | ArgList.push_back(SrcExpr); |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 825 | |
| 826 | clang::CallExpr *RSSetObjectCall = |
| 827 | new(C) clang::CallExpr(C, |
| 828 | RSSetObjectFP, |
| 829 | ArgList, |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 830 | SetObjectFD->getCallResultType(), |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 831 | clang::VK_RValue, |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 832 | Loc); |
| 833 | |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 834 | return RSSetObjectCall; |
| 835 | } |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 836 | |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 837 | static clang::Stmt *CreateStructRSSetObject(clang::ASTContext &C, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 838 | clang::Expr *LHS, |
| 839 | clang::Expr *RHS, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 840 | clang::SourceLocation StartLoc, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 841 | clang::SourceLocation Loc); |
| 842 | |
Al Sutton | 246fa17 | 2012-02-23 13:09:08 +0000 | [diff] [blame] | 843 | /*static clang::Stmt *CreateArrayRSSetObject(clang::ASTContext &C, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 844 | clang::Expr *DstArr, |
| 845 | clang::Expr *SrcArr, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 846 | clang::SourceLocation StartLoc, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 847 | clang::SourceLocation Loc) { |
| 848 | clang::DeclContext *DC = NULL; |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 849 | const clang::Type *BaseType = DstArr->getType().getTypePtr(); |
| 850 | slangAssert(BaseType->isArrayType()); |
| 851 | |
| 852 | int NumArrayElements = ArrayDim(BaseType); |
| 853 | // Actually extract out the base RS object type for use later |
| 854 | BaseType = BaseType->getArrayElementTypeNoTypeQual(); |
| 855 | |
| 856 | clang::Stmt *StmtArray[2] = {NULL}; |
| 857 | int StmtCtr = 0; |
| 858 | |
| 859 | if (NumArrayElements <= 0) { |
| 860 | return NULL; |
| 861 | } |
| 862 | |
| 863 | // Create helper variable for iterating through elements |
| 864 | clang::IdentifierInfo& II = C.Idents.get("rsIntIter"); |
| 865 | clang::VarDecl *IIVD = |
| 866 | clang::VarDecl::Create(C, |
| 867 | DC, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 868 | StartLoc, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 869 | Loc, |
| 870 | &II, |
| 871 | C.IntTy, |
| 872 | C.getTrivialTypeSourceInfo(C.IntTy), |
| 873 | clang::SC_None, |
| 874 | clang::SC_None); |
| 875 | clang::Decl *IID = (clang::Decl *)IIVD; |
| 876 | |
| 877 | clang::DeclGroupRef DGR = clang::DeclGroupRef::Create(C, &IID, 1); |
| 878 | StmtArray[StmtCtr++] = new(C) clang::DeclStmt(DGR, Loc, Loc); |
| 879 | |
| 880 | // Form the actual loop |
| 881 | // for (Init; Cond; Inc) |
| 882 | // RSSetObjectCall; |
| 883 | |
| 884 | // Init -> "rsIntIter = 0" |
| 885 | clang::DeclRefExpr *RefrsIntIter = |
| 886 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 887 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 888 | IIVD, |
| 889 | Loc, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 890 | C.IntTy, |
| 891 | clang::VK_RValue, |
| 892 | NULL); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 893 | |
| 894 | clang::Expr *Int0 = clang::IntegerLiteral::Create(C, |
| 895 | llvm::APInt(C.getTypeSize(C.IntTy), 0), C.IntTy, Loc); |
| 896 | |
| 897 | clang::BinaryOperator *Init = |
| 898 | new(C) clang::BinaryOperator(RefrsIntIter, |
| 899 | Int0, |
| 900 | clang::BO_Assign, |
| 901 | C.IntTy, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 902 | clang::VK_RValue, |
| 903 | clang::OK_Ordinary, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 904 | Loc); |
| 905 | |
| 906 | // Cond -> "rsIntIter < NumArrayElements" |
| 907 | clang::Expr *NumArrayElementsExpr = clang::IntegerLiteral::Create(C, |
| 908 | llvm::APInt(C.getTypeSize(C.IntTy), NumArrayElements), C.IntTy, Loc); |
| 909 | |
| 910 | clang::BinaryOperator *Cond = |
| 911 | new(C) clang::BinaryOperator(RefrsIntIter, |
| 912 | NumArrayElementsExpr, |
| 913 | clang::BO_LT, |
| 914 | C.IntTy, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 915 | clang::VK_RValue, |
| 916 | clang::OK_Ordinary, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 917 | Loc); |
| 918 | |
| 919 | // Inc -> "rsIntIter++" |
| 920 | clang::UnaryOperator *Inc = |
| 921 | new(C) clang::UnaryOperator(RefrsIntIter, |
| 922 | clang::UO_PostInc, |
| 923 | C.IntTy, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 924 | clang::VK_RValue, |
| 925 | clang::OK_Ordinary, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 926 | Loc); |
| 927 | |
| 928 | // Body -> "rsSetObject(&Dst[rsIntIter], Src[rsIntIter]);" |
| 929 | // Loop operates on individual array elements |
| 930 | |
| 931 | clang::Expr *DstArrPtr = |
| 932 | clang::ImplicitCastExpr::Create(C, |
| 933 | C.getPointerType(BaseType->getCanonicalTypeInternal()), |
| 934 | clang::CK_ArrayToPointerDecay, |
| 935 | DstArr, |
| 936 | NULL, |
| 937 | clang::VK_RValue); |
| 938 | |
| 939 | clang::Expr *DstArrPtrSubscript = |
| 940 | new(C) clang::ArraySubscriptExpr(DstArrPtr, |
| 941 | RefrsIntIter, |
| 942 | BaseType->getCanonicalTypeInternal(), |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 943 | clang::VK_RValue, |
| 944 | clang::OK_Ordinary, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 945 | Loc); |
| 946 | |
| 947 | clang::Expr *SrcArrPtr = |
| 948 | clang::ImplicitCastExpr::Create(C, |
| 949 | C.getPointerType(BaseType->getCanonicalTypeInternal()), |
| 950 | clang::CK_ArrayToPointerDecay, |
| 951 | SrcArr, |
| 952 | NULL, |
| 953 | clang::VK_RValue); |
| 954 | |
| 955 | clang::Expr *SrcArrPtrSubscript = |
| 956 | new(C) clang::ArraySubscriptExpr(SrcArrPtr, |
| 957 | RefrsIntIter, |
| 958 | BaseType->getCanonicalTypeInternal(), |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 959 | clang::VK_RValue, |
| 960 | clang::OK_Ordinary, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 961 | Loc); |
| 962 | |
| 963 | RSExportPrimitiveType::DataType DT = |
| 964 | RSExportPrimitiveType::GetRSSpecificType(BaseType); |
| 965 | |
| 966 | clang::Stmt *RSSetObjectCall = NULL; |
| 967 | if (BaseType->isArrayType()) { |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 968 | RSSetObjectCall = CreateArrayRSSetObject(C, DstArrPtrSubscript, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 969 | SrcArrPtrSubscript, |
| 970 | StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 971 | } else if (DT == RSExportPrimitiveType::DataTypeUnknown) { |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 972 | RSSetObjectCall = CreateStructRSSetObject(C, DstArrPtrSubscript, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 973 | SrcArrPtrSubscript, |
| 974 | StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 975 | } else { |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 976 | RSSetObjectCall = CreateSingleRSSetObject(C, DstArrPtrSubscript, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 977 | SrcArrPtrSubscript, |
| 978 | StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 979 | } |
| 980 | |
| 981 | clang::ForStmt *DestructorLoop = |
| 982 | new(C) clang::ForStmt(C, |
| 983 | Init, |
| 984 | Cond, |
| 985 | NULL, // no condVar |
| 986 | Inc, |
| 987 | RSSetObjectCall, |
| 988 | Loc, |
| 989 | Loc, |
| 990 | Loc); |
| 991 | |
| 992 | StmtArray[StmtCtr++] = DestructorLoop; |
| 993 | slangAssert(StmtCtr == 2); |
| 994 | |
| 995 | clang::CompoundStmt *CS = |
| 996 | new(C) clang::CompoundStmt(C, StmtArray, StmtCtr, Loc, Loc); |
| 997 | |
| 998 | return CS; |
Al Sutton | 246fa17 | 2012-02-23 13:09:08 +0000 | [diff] [blame] | 999 | } */ |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1000 | |
| 1001 | static clang::Stmt *CreateStructRSSetObject(clang::ASTContext &C, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1002 | clang::Expr *LHS, |
| 1003 | clang::Expr *RHS, |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 1004 | clang::SourceLocation StartLoc, |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1005 | clang::SourceLocation Loc) { |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1006 | clang::QualType QT = LHS->getType(); |
| 1007 | const clang::Type *T = QT.getTypePtr(); |
| 1008 | slangAssert(T->isStructureType()); |
| 1009 | slangAssert(!RSExportPrimitiveType::IsRSObjectType(T)); |
| 1010 | |
| 1011 | // Keep an extra slot for the original copy (memcpy) |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1012 | unsigned FieldsToSet = CountRSObjectTypes(C, T, Loc) + 1; |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1013 | |
| 1014 | unsigned StmtCount = 0; |
| 1015 | clang::Stmt **StmtArray = new clang::Stmt*[FieldsToSet]; |
| 1016 | for (unsigned i = 0; i < FieldsToSet; i++) { |
| 1017 | StmtArray[i] = NULL; |
| 1018 | } |
| 1019 | |
| 1020 | clang::RecordDecl *RD = T->getAsStructureType()->getDecl(); |
| 1021 | RD = RD->getDefinition(); |
| 1022 | for (clang::RecordDecl::field_iterator FI = RD->field_begin(), |
| 1023 | FE = RD->field_end(); |
| 1024 | FI != FE; |
| 1025 | FI++) { |
| 1026 | bool IsArrayType = false; |
| 1027 | clang::FieldDecl *FD = *FI; |
| 1028 | const clang::Type *FT = RSExportType::GetTypeOfDecl(FD); |
| 1029 | const clang::Type *OrigType = FT; |
| 1030 | |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1031 | if (!CountRSObjectTypes(C, FT, Loc)) { |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1032 | // Skip to next if we don't have any viable RS object types |
| 1033 | continue; |
| 1034 | } |
| 1035 | |
| 1036 | clang::DeclAccessPair FoundDecl = |
| 1037 | clang::DeclAccessPair::make(FD, clang::AS_none); |
| 1038 | clang::MemberExpr *DstMember = |
| 1039 | clang::MemberExpr::Create(C, |
| 1040 | LHS, |
| 1041 | false, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1042 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 1043 | clang::SourceLocation(), |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1044 | FD, |
| 1045 | FoundDecl, |
| 1046 | clang::DeclarationNameInfo(), |
| 1047 | NULL, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1048 | OrigType->getCanonicalTypeInternal(), |
| 1049 | clang::VK_RValue, |
| 1050 | clang::OK_Ordinary); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1051 | |
| 1052 | clang::MemberExpr *SrcMember = |
| 1053 | clang::MemberExpr::Create(C, |
| 1054 | RHS, |
| 1055 | false, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1056 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 1057 | clang::SourceLocation(), |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1058 | FD, |
| 1059 | FoundDecl, |
| 1060 | clang::DeclarationNameInfo(), |
| 1061 | NULL, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1062 | OrigType->getCanonicalTypeInternal(), |
| 1063 | clang::VK_RValue, |
| 1064 | clang::OK_Ordinary); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1065 | |
| 1066 | if (FT->isArrayType()) { |
| 1067 | FT = FT->getArrayElementTypeNoTypeQual(); |
| 1068 | IsArrayType = true; |
| 1069 | } |
| 1070 | |
| 1071 | RSExportPrimitiveType::DataType DT = |
| 1072 | RSExportPrimitiveType::GetRSSpecificType(FT); |
| 1073 | |
| 1074 | if (IsArrayType) { |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 1075 | clang::DiagnosticsEngine &DiagEngine = C.getDiagnostics(); |
| 1076 | DiagEngine.Report( |
| 1077 | clang::FullSourceLoc(Loc, C.getSourceManager()), |
| 1078 | DiagEngine.getCustomDiagID( |
| 1079 | clang::DiagnosticsEngine::Error, |
| 1080 | "Arrays of RS object types within structures cannot be copied")); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1081 | // TODO(srhines): Support setting arrays of RS objects |
| 1082 | // StmtArray[StmtCount++] = |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1083 | // CreateArrayRSSetObject(C, DstMember, SrcMember, StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1084 | } else if (DT == RSExportPrimitiveType::DataTypeUnknown) { |
| 1085 | StmtArray[StmtCount++] = |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1086 | CreateStructRSSetObject(C, DstMember, SrcMember, StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1087 | } else if (RSExportPrimitiveType::IsRSObjectType(DT)) { |
| 1088 | StmtArray[StmtCount++] = |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1089 | CreateSingleRSSetObject(C, DstMember, SrcMember, StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1090 | } else { |
| 1091 | slangAssert(false); |
| 1092 | } |
| 1093 | } |
| 1094 | |
| 1095 | slangAssert(StmtCount > 0 && StmtCount < FieldsToSet); |
| 1096 | |
| 1097 | // We still need to actually do the overall struct copy. For simplicity, |
| 1098 | // we just do a straight-up assignment (which will still preserve all |
| 1099 | // the proper RS object reference counts). |
| 1100 | clang::BinaryOperator *CopyStruct = |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1101 | new(C) clang::BinaryOperator(LHS, RHS, clang::BO_Assign, QT, |
| 1102 | clang::VK_RValue, clang::OK_Ordinary, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1103 | StmtArray[StmtCount++] = CopyStruct; |
| 1104 | |
| 1105 | clang::CompoundStmt *CS = |
| 1106 | new(C) clang::CompoundStmt(C, StmtArray, StmtCount, Loc, Loc); |
| 1107 | |
| 1108 | delete [] StmtArray; |
| 1109 | |
| 1110 | return CS; |
| 1111 | } |
| 1112 | |
| 1113 | } // namespace |
| 1114 | |
| 1115 | void RSObjectRefCount::Scope::ReplaceRSObjectAssignment( |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1116 | clang::BinaryOperator *AS) { |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1117 | |
| 1118 | clang::QualType QT = AS->getType(); |
| 1119 | |
| 1120 | clang::ASTContext &C = RSObjectRefCount::GetRSSetObjectFD( |
| 1121 | RSExportPrimitiveType::DataTypeRSFont)->getASTContext(); |
| 1122 | |
Stephen Hines | 832429f | 2011-02-25 16:05:37 -0800 | [diff] [blame] | 1123 | clang::SourceLocation Loc = AS->getExprLoc(); |
Stephen Hines | 9f1d0aa | 2011-12-18 15:41:00 -0800 | [diff] [blame] | 1124 | clang::SourceLocation StartLoc = AS->getLHS()->getExprLoc(); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1125 | clang::Stmt *UpdatedStmt = NULL; |
| 1126 | |
| 1127 | if (!RSExportPrimitiveType::IsRSObjectType(QT.getTypePtr())) { |
| 1128 | // By definition, this is a struct assignment if we get here |
| 1129 | UpdatedStmt = |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1130 | CreateStructRSSetObject(C, AS->getLHS(), AS->getRHS(), StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1131 | } else { |
| 1132 | UpdatedStmt = |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1133 | CreateSingleRSSetObject(C, AS->getLHS(), AS->getRHS(), StartLoc, Loc); |
Stephen Hines | 2bb67db | 2011-02-11 01:36:40 -0800 | [diff] [blame] | 1134 | } |
| 1135 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 1136 | RSASTReplace R(C); |
| 1137 | R.ReplaceStmt(mCS, AS, UpdatedStmt); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1138 | return; |
| 1139 | } |
| 1140 | |
| 1141 | void RSObjectRefCount::Scope::AppendRSObjectInit( |
| 1142 | clang::VarDecl *VD, |
| 1143 | clang::DeclStmt *DS, |
| 1144 | RSExportPrimitiveType::DataType DT, |
| 1145 | clang::Expr *InitExpr) { |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 1146 | slangAssert(VD); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1147 | |
| 1148 | if (!InitExpr) { |
| 1149 | return; |
| 1150 | } |
| 1151 | |
Stephen Hines | a0611e6 | 2011-02-11 16:35:47 -0800 | [diff] [blame] | 1152 | clang::ASTContext &C = RSObjectRefCount::GetRSSetObjectFD( |
| 1153 | RSExportPrimitiveType::DataTypeRSFont)->getASTContext(); |
| 1154 | clang::SourceLocation Loc = RSObjectRefCount::GetRSSetObjectFD( |
| 1155 | RSExportPrimitiveType::DataTypeRSFont)->getLocation(); |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 1156 | clang::SourceLocation StartLoc = RSObjectRefCount::GetRSSetObjectFD( |
| 1157 | RSExportPrimitiveType::DataTypeRSFont)->getInnerLocStart(); |
Stephen Hines | a0611e6 | 2011-02-11 16:35:47 -0800 | [diff] [blame] | 1158 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1159 | if (DT == RSExportPrimitiveType::DataTypeIsStruct) { |
Stephen Hines | a0611e6 | 2011-02-11 16:35:47 -0800 | [diff] [blame] | 1160 | const clang::Type *T = RSExportType::GetTypeOfDecl(VD); |
| 1161 | clang::DeclRefExpr *RefRSVar = |
| 1162 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1163 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 1164 | clang::SourceLocation(), |
Stephen Hines | a0611e6 | 2011-02-11 16:35:47 -0800 | [diff] [blame] | 1165 | VD, |
Shih-wei Liao | e2597ac | 2012-03-24 02:44:33 -0700 | [diff] [blame] | 1166 | false, |
Stephen Hines | a0611e6 | 2011-02-11 16:35:47 -0800 | [diff] [blame] | 1167 | Loc, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1168 | T->getCanonicalTypeInternal(), |
| 1169 | clang::VK_RValue, |
| 1170 | NULL); |
Stephen Hines | a0611e6 | 2011-02-11 16:35:47 -0800 | [diff] [blame] | 1171 | |
| 1172 | clang::Stmt *RSSetObjectOps = |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1173 | CreateStructRSSetObject(C, RefRSVar, InitExpr, StartLoc, Loc); |
Stephen Hines | a0611e6 | 2011-02-11 16:35:47 -0800 | [diff] [blame] | 1174 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 1175 | std::list<clang::Stmt*> StmtList; |
| 1176 | StmtList.push_back(RSSetObjectOps); |
| 1177 | AppendAfterStmt(C, mCS, DS, StmtList); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1178 | return; |
| 1179 | } |
| 1180 | |
| 1181 | clang::FunctionDecl *SetObjectFD = RSObjectRefCount::GetRSSetObjectFD(DT); |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 1182 | slangAssert((SetObjectFD != NULL) && |
| 1183 | "rsSetObject doesn't cover all RS object types"); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1184 | |
| 1185 | clang::QualType SetObjectFDType = SetObjectFD->getType(); |
| 1186 | clang::QualType SetObjectFDArgType[2]; |
| 1187 | SetObjectFDArgType[0] = SetObjectFD->getParamDecl(0)->getOriginalType(); |
| 1188 | SetObjectFDArgType[1] = SetObjectFD->getParamDecl(1)->getOriginalType(); |
| 1189 | |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1190 | clang::Expr *RefRSSetObjectFD = |
| 1191 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1192 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 1193 | clang::SourceLocation(), |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1194 | SetObjectFD, |
Shih-wei Liao | e2597ac | 2012-03-24 02:44:33 -0700 | [diff] [blame] | 1195 | false, |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1196 | Loc, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1197 | SetObjectFDType, |
| 1198 | clang::VK_RValue, |
| 1199 | NULL); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1200 | |
| 1201 | clang::Expr *RSSetObjectFP = |
| 1202 | clang::ImplicitCastExpr::Create(C, |
| 1203 | C.getPointerType(SetObjectFDType), |
| 1204 | clang::CK_FunctionToPointerDecay, |
| 1205 | RefRSSetObjectFD, |
| 1206 | NULL, |
| 1207 | clang::VK_RValue); |
| 1208 | |
| 1209 | const clang::Type *T = RSExportType::GetTypeOfDecl(VD); |
| 1210 | clang::DeclRefExpr *RefRSVar = |
| 1211 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1212 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 1213 | clang::SourceLocation(), |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1214 | VD, |
Shih-wei Liao | e2597ac | 2012-03-24 02:44:33 -0700 | [diff] [blame] | 1215 | false, |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1216 | Loc, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1217 | T->getCanonicalTypeInternal(), |
| 1218 | clang::VK_RValue, |
| 1219 | NULL); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1220 | |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1221 | llvm::SmallVector<clang::Expr*, 2> ArgList; |
| 1222 | ArgList.push_back(new(C) clang::UnaryOperator(RefRSVar, |
| 1223 | clang::UO_AddrOf, |
| 1224 | SetObjectFDArgType[0], |
| 1225 | clang::VK_RValue, |
| 1226 | clang::OK_Ordinary, |
| 1227 | Loc)); |
| 1228 | ArgList.push_back(InitExpr); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1229 | |
| 1230 | clang::CallExpr *RSSetObjectCall = |
| 1231 | new(C) clang::CallExpr(C, |
| 1232 | RSSetObjectFP, |
| 1233 | ArgList, |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1234 | SetObjectFD->getCallResultType(), |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1235 | clang::VK_RValue, |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1236 | Loc); |
| 1237 | |
Stephen Hines | 292e00a | 2011-03-18 19:11:30 -0700 | [diff] [blame] | 1238 | std::list<clang::Stmt*> StmtList; |
| 1239 | StmtList.push_back(RSSetObjectCall); |
| 1240 | AppendAfterStmt(C, mCS, DS, StmtList); |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 1241 | |
| 1242 | return; |
| 1243 | } |
| 1244 | |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1245 | void RSObjectRefCount::Scope::InsertLocalVarDestructors() { |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1246 | for (std::list<clang::VarDecl*>::const_iterator I = mRSO.begin(), |
| 1247 | E = mRSO.end(); |
| 1248 | I != E; |
| 1249 | I++) { |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 1250 | clang::VarDecl *VD = *I; |
Stephen Hines | 3f175af | 2011-09-16 16:26:29 -0700 | [diff] [blame] | 1251 | clang::Stmt *RSClearObjectCall = ClearRSObject(VD, VD->getDeclContext()); |
Stephen Hines | a883ce3 | 2011-08-11 18:52:48 -0700 | [diff] [blame] | 1252 | if (RSClearObjectCall) { |
| 1253 | DestructorVisitor DV((*mRSO.begin())->getASTContext(), |
| 1254 | mCS, |
| 1255 | RSClearObjectCall, |
| 1256 | VD->getSourceRange().getBegin()); |
| 1257 | DV.Visit(mCS); |
| 1258 | DV.InsertDestructors(); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1259 | } |
| 1260 | } |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1261 | return; |
| 1262 | } |
| 1263 | |
Stephen Hines | 3f175af | 2011-09-16 16:26:29 -0700 | [diff] [blame] | 1264 | clang::Stmt *RSObjectRefCount::Scope::ClearRSObject( |
| 1265 | clang::VarDecl *VD, |
| 1266 | clang::DeclContext *DC) { |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1267 | slangAssert(VD); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1268 | clang::ASTContext &C = VD->getASTContext(); |
| 1269 | clang::SourceLocation Loc = VD->getLocation(); |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 1270 | clang::SourceLocation StartLoc = VD->getInnerLocStart(); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1271 | const clang::Type *T = RSExportType::GetTypeOfDecl(VD); |
Stephen Hines | 03981a3 | 2010-12-14 19:45:49 -0800 | [diff] [blame] | 1272 | |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1273 | // Reference expr to target RS object variable |
| 1274 | clang::DeclRefExpr *RefRSVar = |
| 1275 | clang::DeclRefExpr::Create(C, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1276 | clang::NestedNameSpecifierLoc(), |
Stephen Hines | 0444de0 | 2012-03-02 23:19:06 -0800 | [diff] [blame] | 1277 | clang::SourceLocation(), |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1278 | VD, |
Shih-wei Liao | e2597ac | 2012-03-24 02:44:33 -0700 | [diff] [blame] | 1279 | false, |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1280 | Loc, |
Logan | be27482 | 2011-02-16 22:02:54 +0800 | [diff] [blame] | 1281 | T->getCanonicalTypeInternal(), |
| 1282 | clang::VK_RValue, |
| 1283 | NULL); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1284 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1285 | if (T->isArrayType()) { |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 1286 | return ClearArrayRSObject(C, DC, RefRSVar, StartLoc, Loc); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1287 | } |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1288 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1289 | RSExportPrimitiveType::DataType DT = |
| 1290 | RSExportPrimitiveType::GetRSSpecificType(T); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1291 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1292 | if (DT == RSExportPrimitiveType::DataTypeUnknown || |
| 1293 | DT == RSExportPrimitiveType::DataTypeIsStruct) { |
Shih-wei Liao | cc887ba | 2011-04-19 18:36:20 -0700 | [diff] [blame] | 1294 | return ClearStructRSObject(C, DC, RefRSVar, StartLoc, Loc); |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1295 | } |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1296 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1297 | slangAssert((RSExportPrimitiveType::IsRSObjectType(DT)) && |
| 1298 | "Should be RS object"); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1299 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1300 | return ClearSingleRSObject(C, RefRSVar, Loc); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1301 | } |
| 1302 | |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1303 | bool RSObjectRefCount::InitializeRSObject(clang::VarDecl *VD, |
| 1304 | RSExportPrimitiveType::DataType *DT, |
| 1305 | clang::Expr **InitExpr) { |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 1306 | slangAssert(VD && DT && InitExpr); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1307 | const clang::Type *T = RSExportType::GetTypeOfDecl(VD); |
Stephen Hines | 2d09504 | 2010-11-12 18:13:56 -0800 | [diff] [blame] | 1308 | |
| 1309 | // Loop through array types to get to base type |
| 1310 | while (T && T->isArrayType()) { |
| 1311 | T = T->getArrayElementTypeNoTypeQual(); |
Stephen Hines | 2d09504 | 2010-11-12 18:13:56 -0800 | [diff] [blame] | 1312 | } |
| 1313 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1314 | bool DataTypeIsStructWithRSObject = false; |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1315 | *DT = RSExportPrimitiveType::GetRSSpecificType(T); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1316 | |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1317 | if (*DT == RSExportPrimitiveType::DataTypeUnknown) { |
Stephen Hines | feaca06 | 2011-02-04 14:08:13 -0800 | [diff] [blame] | 1318 | if (RSExportPrimitiveType::IsStructureTypeWithRSObject(T)) { |
| 1319 | *DT = RSExportPrimitiveType::DataTypeIsStruct; |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1320 | DataTypeIsStructWithRSObject = true; |
Stephen Hines | feaca06 | 2011-02-04 14:08:13 -0800 | [diff] [blame] | 1321 | } else { |
| 1322 | return false; |
| 1323 | } |
Stephen Hines | 2d09504 | 2010-11-12 18:13:56 -0800 | [diff] [blame] | 1324 | } |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1325 | |
Stephen Hines | f2174cf | 2011-02-09 23:21:37 -0800 | [diff] [blame] | 1326 | bool DataTypeIsRSObject = false; |
| 1327 | if (DataTypeIsStructWithRSObject) { |
| 1328 | DataTypeIsRSObject = true; |
| 1329 | } else { |
| 1330 | DataTypeIsRSObject = RSExportPrimitiveType::IsRSObjectType(*DT); |
| 1331 | } |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1332 | *InitExpr = VD->getInit(); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1333 | |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1334 | if (!DataTypeIsRSObject && *InitExpr) { |
| 1335 | // If we already have an initializer for a matrix type, we are done. |
| 1336 | return DataTypeIsRSObject; |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1337 | } |
| 1338 | |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1339 | clang::Expr *ZeroInitializer = |
| 1340 | CreateZeroInitializerForRSSpecificType(*DT, |
| 1341 | VD->getASTContext(), |
| 1342 | VD->getLocation()); |
| 1343 | |
| 1344 | if (ZeroInitializer) { |
| 1345 | ZeroInitializer->setType(T->getCanonicalTypeInternal()); |
| 1346 | VD->setInit(ZeroInitializer); |
| 1347 | } |
| 1348 | |
| 1349 | return DataTypeIsRSObject; |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1350 | } |
| 1351 | |
| 1352 | clang::Expr *RSObjectRefCount::CreateZeroInitializerForRSSpecificType( |
| 1353 | RSExportPrimitiveType::DataType DT, |
| 1354 | clang::ASTContext &C, |
| 1355 | const clang::SourceLocation &Loc) { |
| 1356 | clang::Expr *Res = NULL; |
| 1357 | switch (DT) { |
Stephen Hines | feaca06 | 2011-02-04 14:08:13 -0800 | [diff] [blame] | 1358 | case RSExportPrimitiveType::DataTypeIsStruct: |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1359 | case RSExportPrimitiveType::DataTypeRSElement: |
| 1360 | case RSExportPrimitiveType::DataTypeRSType: |
| 1361 | case RSExportPrimitiveType::DataTypeRSAllocation: |
| 1362 | case RSExportPrimitiveType::DataTypeRSSampler: |
| 1363 | case RSExportPrimitiveType::DataTypeRSScript: |
| 1364 | case RSExportPrimitiveType::DataTypeRSMesh: |
Jason Sams | db6dfdf | 2011-11-07 18:11:10 -0800 | [diff] [blame] | 1365 | case RSExportPrimitiveType::DataTypeRSPath: |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1366 | case RSExportPrimitiveType::DataTypeRSProgramFragment: |
| 1367 | case RSExportPrimitiveType::DataTypeRSProgramVertex: |
| 1368 | case RSExportPrimitiveType::DataTypeRSProgramRaster: |
| 1369 | case RSExportPrimitiveType::DataTypeRSProgramStore: |
| 1370 | case RSExportPrimitiveType::DataTypeRSFont: { |
| 1371 | // (ImplicitCastExpr 'nullptr_t' |
| 1372 | // (IntegerLiteral 0))) |
| 1373 | llvm::APInt Zero(C.getTypeSize(C.IntTy), 0); |
| 1374 | clang::Expr *Int0 = clang::IntegerLiteral::Create(C, Zero, C.IntTy, Loc); |
| 1375 | clang::Expr *CastToNull = |
| 1376 | clang::ImplicitCastExpr::Create(C, |
| 1377 | C.NullPtrTy, |
| 1378 | clang::CK_IntegralToPointer, |
| 1379 | Int0, |
| 1380 | NULL, |
| 1381 | clang::VK_RValue); |
| 1382 | |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1383 | llvm::SmallVector<clang::Expr*, 1>InitList; |
| 1384 | InitList.push_back(CastToNull); |
| 1385 | |
| 1386 | Res = new(C) clang::InitListExpr(C, Loc, InitList, Loc); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1387 | break; |
| 1388 | } |
| 1389 | case RSExportPrimitiveType::DataTypeRSMatrix2x2: |
| 1390 | case RSExportPrimitiveType::DataTypeRSMatrix3x3: |
| 1391 | case RSExportPrimitiveType::DataTypeRSMatrix4x4: { |
| 1392 | // RS matrix is not completely an RS object. They hold data by themselves. |
| 1393 | // (InitListExpr rs_matrix2x2 |
| 1394 | // (InitListExpr float[4] |
| 1395 | // (FloatingLiteral 0) |
| 1396 | // (FloatingLiteral 0) |
| 1397 | // (FloatingLiteral 0) |
| 1398 | // (FloatingLiteral 0))) |
| 1399 | clang::QualType FloatTy = C.FloatTy; |
| 1400 | // Constructor sets value to 0.0f by default |
| 1401 | llvm::APFloat Val(C.getFloatTypeSemantics(FloatTy)); |
| 1402 | clang::FloatingLiteral *Float0Val = |
| 1403 | clang::FloatingLiteral::Create(C, |
| 1404 | Val, |
| 1405 | /* isExact = */true, |
| 1406 | FloatTy, |
| 1407 | Loc); |
| 1408 | |
| 1409 | unsigned N = 0; |
| 1410 | if (DT == RSExportPrimitiveType::DataTypeRSMatrix2x2) |
| 1411 | N = 2; |
| 1412 | else if (DT == RSExportPrimitiveType::DataTypeRSMatrix3x3) |
| 1413 | N = 3; |
| 1414 | else if (DT == RSExportPrimitiveType::DataTypeRSMatrix4x4) |
| 1415 | N = 4; |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1416 | unsigned N_2 = N * N; |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1417 | |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1418 | // Assume we are going to be allocating 16 elements, since 4x4 is max. |
| 1419 | llvm::SmallVector<clang::Expr*, 16> InitVals; |
| 1420 | for (unsigned i = 0; i < N_2; i++) |
| 1421 | InitVals.push_back(Float0Val); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1422 | clang::Expr *InitExpr = |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1423 | new(C) clang::InitListExpr(C, Loc, InitVals, Loc); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1424 | InitExpr->setType(C.getConstantArrayType(FloatTy, |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1425 | llvm::APInt(32, N_2), |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1426 | clang::ArrayType::Normal, |
| 1427 | /* EltTypeQuals = */0)); |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1428 | llvm::SmallVector<clang::Expr*, 1> InitExprVec; |
| 1429 | InitExprVec.push_back(InitExpr); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1430 | |
Stephen Hines | 1dfc415 | 2012-09-10 20:16:04 -0700 | [diff] [blame^] | 1431 | Res = new(C) clang::InitListExpr(C, Loc, InitExprVec, Loc); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1432 | break; |
| 1433 | } |
| 1434 | case RSExportPrimitiveType::DataTypeUnknown: |
| 1435 | case RSExportPrimitiveType::DataTypeFloat16: |
| 1436 | case RSExportPrimitiveType::DataTypeFloat32: |
| 1437 | case RSExportPrimitiveType::DataTypeFloat64: |
| 1438 | case RSExportPrimitiveType::DataTypeSigned8: |
| 1439 | case RSExportPrimitiveType::DataTypeSigned16: |
| 1440 | case RSExportPrimitiveType::DataTypeSigned32: |
| 1441 | case RSExportPrimitiveType::DataTypeSigned64: |
| 1442 | case RSExportPrimitiveType::DataTypeUnsigned8: |
| 1443 | case RSExportPrimitiveType::DataTypeUnsigned16: |
| 1444 | case RSExportPrimitiveType::DataTypeUnsigned32: |
| 1445 | case RSExportPrimitiveType::DataTypeUnsigned64: |
| 1446 | case RSExportPrimitiveType::DataTypeBoolean: |
| 1447 | case RSExportPrimitiveType::DataTypeUnsigned565: |
| 1448 | case RSExportPrimitiveType::DataTypeUnsigned5551: |
| 1449 | case RSExportPrimitiveType::DataTypeUnsigned4444: |
| 1450 | case RSExportPrimitiveType::DataTypeMax: { |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 1451 | slangAssert(false && "Not RS object type!"); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1452 | } |
| 1453 | // No default case will enable compiler detecting the missing cases |
| 1454 | } |
| 1455 | |
| 1456 | return Res; |
| 1457 | } |
| 1458 | |
| 1459 | void RSObjectRefCount::VisitDeclStmt(clang::DeclStmt *DS) { |
| 1460 | for (clang::DeclStmt::decl_iterator I = DS->decl_begin(), E = DS->decl_end(); |
| 1461 | I != E; |
| 1462 | I++) { |
| 1463 | clang::Decl *D = *I; |
| 1464 | if (D->getKind() == clang::Decl::Var) { |
| 1465 | clang::VarDecl *VD = static_cast<clang::VarDecl*>(D); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1466 | RSExportPrimitiveType::DataType DT = |
| 1467 | RSExportPrimitiveType::DataTypeUnknown; |
| 1468 | clang::Expr *InitExpr = NULL; |
| 1469 | if (InitializeRSObject(VD, &DT, &InitExpr)) { |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1470 | getCurrentScope()->addRSObject(VD); |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1471 | getCurrentScope()->AppendRSObjectInit(VD, DS, DT, InitExpr); |
Stephen Hines | e79fb5e | 2011-02-01 19:12:43 -0800 | [diff] [blame] | 1472 | } |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1473 | } |
| 1474 | } |
| 1475 | return; |
| 1476 | } |
| 1477 | |
| 1478 | void RSObjectRefCount::VisitCompoundStmt(clang::CompoundStmt *CS) { |
| 1479 | if (!CS->body_empty()) { |
| 1480 | // Push a new scope |
| 1481 | Scope *S = new Scope(CS); |
| 1482 | mScopeStack.push(S); |
| 1483 | |
| 1484 | VisitStmt(CS); |
| 1485 | |
| 1486 | // Destroy the scope |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 1487 | slangAssert((getCurrentScope() == S) && "Corrupted scope stack!"); |
Stephen Hines | 1bdd497 | 2010-11-08 17:35:08 -0800 | [diff] [blame] | 1488 | S->InsertLocalVarDestructors(); |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1489 | mScopeStack.pop(); |
| 1490 | delete S; |
| 1491 | } |
| 1492 | return; |
| 1493 | } |
| 1494 | |
| 1495 | void RSObjectRefCount::VisitBinAssign(clang::BinaryOperator *AS) { |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 1496 | clang::QualType QT = AS->getType(); |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 1497 | |
Stephen Hines | d0b5edd | 2011-04-18 16:38:03 -0700 | [diff] [blame] | 1498 | if (CountRSObjectTypes(mCtx, QT.getTypePtr(), AS->getExprLoc())) { |
| 1499 | getCurrentScope()->ReplaceRSObjectAssignment(AS); |
Stephen Hines | c202d2d | 2011-01-26 11:57:57 -0800 | [diff] [blame] | 1500 | } |
| 1501 | |
Stephen Hines | 4b32ffd | 2010-11-05 18:47:11 -0700 | [diff] [blame] | 1502 | return; |
| 1503 | } |
| 1504 | |
| 1505 | void RSObjectRefCount::VisitStmt(clang::Stmt *S) { |
| 1506 | for (clang::Stmt::child_iterator I = S->child_begin(), E = S->child_end(); |
| 1507 | I != E; |
| 1508 | I++) { |
| 1509 | if (clang::Stmt *Child = *I) { |
| 1510 | Visit(Child); |
| 1511 | } |
| 1512 | } |
| 1513 | return; |
| 1514 | } |
| 1515 | |
Stephen Hines | 688e64b | 2011-08-23 16:01:25 -0700 | [diff] [blame] | 1516 | // This function walks the list of global variables and (potentially) creates |
| 1517 | // a single global static destructor function that properly decrements |
| 1518 | // reference counts on the contained RS object types. |
| 1519 | clang::FunctionDecl *RSObjectRefCount::CreateStaticGlobalDtor() { |
| 1520 | Init(); |
| 1521 | |
| 1522 | clang::DeclContext *DC = mCtx.getTranslationUnitDecl(); |
| 1523 | clang::SourceLocation loc; |
| 1524 | |
Stephen Hines | 3f175af | 2011-09-16 16:26:29 -0700 | [diff] [blame] | 1525 | llvm::StringRef SR(".rs.dtor"); |
| 1526 | clang::IdentifierInfo &II = mCtx.Idents.get(SR); |
| 1527 | clang::DeclarationName N(&II); |
| 1528 | clang::FunctionProtoType::ExtProtoInfo EPI; |
| 1529 | clang::QualType T = mCtx.getFunctionType(mCtx.VoidTy, NULL, 0, EPI); |
| 1530 | clang::FunctionDecl *FD = NULL; |
| 1531 | |
Stephen Hines | 688e64b | 2011-08-23 16:01:25 -0700 | [diff] [blame] | 1532 | // Generate rsClearObject() call chains for every global variable |
| 1533 | // (whether static or extern). |
| 1534 | std::list<clang::Stmt *> StmtList; |
| 1535 | for (clang::DeclContext::decl_iterator I = DC->decls_begin(), |
| 1536 | E = DC->decls_end(); I != E; I++) { |
| 1537 | clang::VarDecl *VD = llvm::dyn_cast<clang::VarDecl>(*I); |
| 1538 | if (VD) { |
| 1539 | if (CountRSObjectTypes(mCtx, VD->getType().getTypePtr(), loc)) { |
Stephen Hines | 3f175af | 2011-09-16 16:26:29 -0700 | [diff] [blame] | 1540 | if (!FD) { |
| 1541 | // Only create FD if we are going to use it. |
| 1542 | FD = clang::FunctionDecl::Create(mCtx, DC, loc, loc, N, T, NULL); |
| 1543 | } |
| 1544 | // Make sure to create any helpers within the function's DeclContext, |
| 1545 | // not the one associated with the global translation unit. |
| 1546 | clang::Stmt *RSClearObjectCall = Scope::ClearRSObject(VD, FD); |
Stephen Hines | 688e64b | 2011-08-23 16:01:25 -0700 | [diff] [blame] | 1547 | StmtList.push_back(RSClearObjectCall); |
| 1548 | } |
| 1549 | } |
| 1550 | } |
| 1551 | |
| 1552 | // Nothing needs to be destroyed, so don't emit a dtor. |
| 1553 | if (StmtList.empty()) { |
| 1554 | return NULL; |
| 1555 | } |
| 1556 | |
Stephen Hines | 688e64b | 2011-08-23 16:01:25 -0700 | [diff] [blame] | 1557 | clang::CompoundStmt *CS = BuildCompoundStmt(mCtx, StmtList, loc); |
| 1558 | |
| 1559 | FD->setBody(CS); |
| 1560 | |
| 1561 | return FD; |
| 1562 | } |
| 1563 | |
Stephen Hines | e639eb5 | 2010-11-08 19:27:20 -0800 | [diff] [blame] | 1564 | } // namespace slang |