Fix handling of wint_t - we can't assume wint_t is purely an integer promotion of wchar_t - they may differ in signedness.
Teach ASTContext about WIntType, and have it taken from TargetInfo like WCharType. Should fix test/Sema/format-strings.c for ARM, with the exception of one subtest which will fail if wint_t and wchar_t are the same size and wint_t is signed, wchar_t is unsigned.
There'll be a followup commit to fix that.
Reviewed by Chandler and Hans at http://llvm.org/reviews/r/8
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156165 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index dad0827..0c8309e 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -2392,7 +2392,8 @@
// or 'short' to an 'int'. This is done because printf is a varargs
// function.
if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Ex))
- if (ICE->getType() == S.Context.IntTy) {
+ if (ICE->getType() == S.Context.IntTy ||
+ ICE->getType() == S.Context.UnsignedIntTy) {
// All further checking is done on the subexpression.
Ex = ICE->getSubExpr();
if (ATR.matchesType(S.Context, Ex->getType()))