LValue CodeGenFunction::EmitArraySubscriptExpr(const ArraySubscriptExpr *E) {
// The index must always be an integer, which is not an aggregate. Emit it.
llvm::Value *Idx = EmitScalarExpr(E->getIdx());
-
+ QualType IdxTy = E->getIdx()->getType();
+ bool IdxSigned = IdxTy->isSignedIntegerType();
+
// If the base is a vector type, then we are forming a vector element lvalue
// with this subscript.
if (E->getBase()->getType()->isVectorType()) {
// Emit the vector as an lvalue to get its address.
LValue LHS = EmitLValue(E->getBase());
assert(LHS.isSimple() && "Can only subscript lvalue vectors here!");
- // FIXME: This should properly sign/zero/extend or truncate Idx to i32.
+ Idx = Builder.CreateIntCast(Idx, llvm::Type::Int32Ty, IdxSigned, "vidx");
return LValue::MakeVectorElt(LHS.getAddress(), Idx,
E->getBase()->getType().getCVRQualifiers());
}
llvm::Value *Base = EmitScalarExpr(E->getBase());
// Extend or truncate the index type to 32 or 64-bits.
- QualType IdxTy = E->getIdx()->getType();
- bool IdxSigned = IdxTy->isSignedIntegerType();
unsigned IdxBitwidth = cast<llvm::IntegerType>(Idx->getType())->getBitWidth();
if (IdxBitwidth != LLVMPointerWidth)
Idx = Builder.CreateIntCast(Idx, llvm::IntegerType::get(LLVMPointerWidth),
typedef int vty __attribute((vector_size(16)));
int a() { vty b; return b[2LL]; }
+
+// PR4339
+typedef float vec4 __attribute__((vector_size(16)));
+
+void vac ( vec4* a, char b, float c )
+{
+ (*a)[b] = c;
+}