diff options
Diffstat (limited to 'clang/lib/CodeGen')
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index 4b4c8f481cb..d1a41cfd012 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -3249,7 +3249,8 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID, case X86::BI__builtin_ia32_movntpd256: case X86::BI__builtin_ia32_movntdq: case X86::BI__builtin_ia32_movntdq256: - case X86::BI__builtin_ia32_movnti: { + case X86::BI__builtin_ia32_movnti: + case X86::BI__builtin_ia32_movnti64: { llvm::MDNode *Node = llvm::MDNode::get(getLLVMContext(), Builder.getInt32(1)); @@ -3259,7 +3260,16 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID, "cast"); StoreInst *SI = Builder.CreateStore(Ops[1], BC); SI->setMetadata(CGM.getModule().getMDKindID("nontemporal"), Node); - SI->setAlignment(16); + + // If the operand is an integer, we can't assume alignment. Otherwise, + // assume natural alignment. + QualType ArgTy = E->getArg(1)->getType(); + unsigned Align; + if (ArgTy->isIntegerType()) + Align = 1; + else + Align = getContext().getTypeSizeInChars(ArgTy).getQuantity(); + SI->setAlignment(Align); return SI; } // 3DNow! |
