Testing with a full OpenCL compiler (based on clang) reveals r71734 missed
difference between type widths of a vector and the width of one of its elements
in the case of vector shifts. Use correct witdth in the vector case.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172047 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp
index ae7518a..fb5f58d 100644
--- a/lib/CodeGen/CGExprScalar.cpp
+++ b/lib/CodeGen/CGExprScalar.cpp
@@ -2368,8 +2368,12 @@
}
Value *ScalarExprEmitter::GetWidthMinusOneValue(Value* LHS,Value* RHS) {
- unsigned Width = cast<llvm::IntegerType>(LHS->getType())->getBitWidth();
- return llvm::ConstantInt::get(RHS->getType(), Width - 1);
+ llvm::IntegerType *Ty;
+ if (llvm::VectorType *VT = dyn_cast<llvm::VectorType>(LHS->getType()))
+ Ty = cast<llvm::IntegerType>(VT->getElementType());
+ else
+ Ty = cast<llvm::IntegerType>(LHS->getType());
+ return llvm::ConstantInt::get(RHS->getType(), Ty->getBitWidth() - 1);
}
Value *ScalarExprEmitter::EmitShl(const BinOpInfo &Ops) {