AAPCS compliance - 32-bit wchar_t should be unsigned for both aapcs and aapcs-linux.
Original behaviour of defining wchar_t as signed int has been kept for apcs-gnu as I don't have any spec for this to validate against.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145102 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 06e7926..1dcdf93 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -2404,6 +2404,8 @@
{
SizeType = UnsignedInt;
PtrDiffType = SignedInt;
+ // AAPCS 7.1.1, ARM-Linux ABI 2.4: type of wchar_t is unsigned int.
+ WCharType = UnsignedInt;
// {} in inline assembly are neon specifiers, not assembly variant
// specifiers.
@@ -2442,6 +2444,9 @@
DoubleAlign = LongLongAlign = LongDoubleAlign = 32;
SizeType = UnsignedLong;
+ // Revert to using SignedInt on apcs-gnu to comply with existing behaviour.
+ WCharType = SignedInt;
+
// Do not respect the alignment of bit-field types when laying out
// structures. This corresponds to PCC_BITFIELD_TYPE_MATTERS in gcc.
UseBitFieldTypeAlignment = false;