// Otherwise, coerce it to a small integer.
return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(), Width));
}
+ // Bool type is always extended to the ABI, other builtin types are not
+ // extended.
+ const BuiltinType *BT = Ty->getAs<BuiltinType>();
+ if (BT && BT->getKind() == BuiltinType::Bool)
+ return ABIArgInfo::getExtend(Ty);
- if (const BuiltinType *BT = Ty->getAs<BuiltinType>()) {
- switch (BT->getKind()) {
- case BuiltinType::Bool:
- // Bool type is always extended to the ABI, other builtin types are not
- // extended.
- return ABIArgInfo::getExtend(Ty);
-
- case BuiltinType::LongDouble:
- // Mingw64 GCC uses the old 80 bit extended precision floating point
- // unit. It passes them indirectly through memory.
- if (IsMingw64) {
- const llvm::fltSemantics *LDF = &getTarget().getLongDoubleFormat();
- if (LDF == &llvm::APFloat::x87DoubleExtended())
- return ABIArgInfo::getIndirect(Align, /*ByVal=*/false);
- break;
- }
-
- case BuiltinType::Int128:
- case BuiltinType::UInt128:
- // If it's a parameter type, the normal ABI rule is that arguments larger
- // than 8 bytes are passed indirectly. GCC follows it. We follow it too,
- // even though it isn't particularly efficient.
- if (!IsReturnType)
- return ABIArgInfo::getIndirect(Align, /*ByVal=*/false);
-
- // Mingw64 GCC returns i128 in XMM0. Coerce to v2i64 to handle that.
- // Clang matches them for compatibility.
- return ABIArgInfo::getDirect(
- llvm::VectorType::get(llvm::Type::getInt64Ty(getVMContext()), 2));
-
- default:
- break;
- }
+ // Mingw64 GCC uses the old 80 bit extended precision floating point unit. It
+ // passes them indirectly through memory.
+ if (IsMingw64 && BT && BT->getKind() == BuiltinType::LongDouble) {
+ const llvm::fltSemantics *LDF = &getTarget().getLongDoubleFormat();
+ if (LDF == &llvm::APFloat::x87DoubleExtended())
+ return ABIArgInfo::getIndirect(Align, /*ByVal=*/false);
}
return ABIArgInfo::getDirect();
+++ /dev/null
-// RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm -o - %s \
-// RUN: | FileCheck %s --check-prefix=GNU64
-// RUN: %clang_cc1 -triple x86_64-windows-msvc -emit-llvm -o - %s \
-// RUN: | FileCheck %s --check-prefix=MSC64
-
-typedef int int128_t __attribute__((mode(TI)));
-
-int128_t foo() { return 0; }
-
-// GNU64: define dso_local <2 x i64> @foo()
-// MSC64: define dso_local <2 x i64> @foo()
-
-int128_t bar(int128_t a, int128_t b) { return a * b; }
-
-// GNU64: define dso_local <2 x i64> @bar(i128*, i128*)
-// MSC64: define dso_local <2 x i64> @bar(i128*, i128*)