teach getCorrespondingUnsignedType how to handle vectors of integers,
fixing PR4838.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84353 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 507baea..1b77bbe 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -3930,7 +3930,7 @@
unsigned ASTContext::getIntWidth(QualType T) {
if (T == BoolTy)
return 1;
- if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) {
+ if (FixedWidthIntType *FWIT = dyn_cast<FixedWidthIntType>(T)) {
return FWIT->getWidth();
}
// For builtin types, just use the standard type sizing method
@@ -3939,10 +3939,18 @@
QualType ASTContext::getCorrespondingUnsignedType(QualType T) {
assert(T->isSignedIntegerType() && "Unexpected type");
- if (const EnumType* ETy = T->getAs<EnumType>())
+
+ // Turn <4 x signed int> -> <4 x unsigned int>
+ if (const VectorType *VTy = T->getAs<VectorType>())
+ return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()),
+ VTy->getNumElements());
+
+ // For enums, we return the unsigned version of the base type.
+ if (const EnumType *ETy = T->getAs<EnumType>())
T = ETy->getDecl()->getIntegerType();
- const BuiltinType* BTy = T->getAs<BuiltinType>();
- assert (BTy && "Unexpected signed integer type");
+
+ const BuiltinType *BTy = T->getAs<BuiltinType>();
+ assert(BTy && "Unexpected signed integer type");
switch (BTy->getKind()) {
case BuiltinType::Char_S:
case BuiltinType::SChar: