This patch adds a helper class (CGLoopInfo) for marking memory instructions with llvm.mem.parallel_loop_access metadata.

It also adds a simple initial version of codegen for pragma omp simd (it will change in the future to support all the clauses).

Differential revision: http://reviews.llvm.org/D3644

llvm-svn: 209411

clang/lib/CodeGen/CodeGenFunction.cpp

@@ -35,7 +35,8 @@ using namespace CodeGen;
 
 CodeGenFunction::CodeGenFunction(CodeGenModule &cgm, bool suppressNewContext)
     : CodeGenTypeCache(cgm), CGM(cgm), Target(cgm.getTarget()),
-      Builder(cgm.getModule().getContext()), CapturedStmtInfo(nullptr),
+      Builder(cgm.getModule().getContext(), llvm::ConstantFolder(),
+              CGBuilderInserterTy(this)), CapturedStmtInfo(nullptr),
       SanitizePerformTypeCheck(CGM.getSanOpts().Null |
                                CGM.getSanOpts().Alignment |
                                CGM.getSanOpts().ObjectSize |
@@ -1644,3 +1645,30 @@ llvm::Value *CodeGenFunction::EmitFieldAnnotations(const FieldDecl *D,
 }
 
 CodeGenFunction::CGCapturedStmtInfo::~CGCapturedStmtInfo() { }
+
+void CodeGenFunction::InsertHelper(llvm::Instruction *I,
+                                   const llvm::Twine &Name,
+                                   llvm::BasicBlock *BB,
+                                   llvm::BasicBlock::iterator InsertPt) const {
+  LoopStack.InsertHelper(I);
+}
+
+template <bool PreserveNames>
+void CGBuilderInserter<PreserveNames>::InsertHelper(
+    llvm::Instruction *I, const llvm::Twine &Name, llvm::BasicBlock *BB,
+    llvm::BasicBlock::iterator InsertPt) const {
+  llvm::IRBuilderDefaultInserter<PreserveNames>::InsertHelper(I, Name, BB,
+                                                              InsertPt);
+  if (CGF)
+    CGF->InsertHelper(I, Name, BB, InsertPt);
+}
+
+#ifdef NDEBUG
+#define PreserveNames false
+#else
+#define PreserveNames true
+#endif
+template void CGBuilderInserter<PreserveNames>::InsertHelper(
+    llvm::Instruction *I, const llvm::Twine &Name, llvm::BasicBlock *BB,
+    llvm::BasicBlock::iterator InsertPt) const;
+#undef PreserveNames