Ensure we diagnose long long literals in C90 mode.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41581 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaExpr.cpp b/Sema/SemaExpr.cpp
index b613cd9..272fc6f 100644
--- a/Sema/SemaExpr.cpp
+++ b/Sema/SemaExpr.cpp
@@ -156,6 +156,11 @@
} else {
QualType t;
+ // long long is a C99 feature.
+ if (!getLangOptions().C99 && !getLangOptions().CPlusPlus0x &&
+ Literal.isLongLong)
+ Diag(Tok.getLocation(), diag::ext_longlong);
+
// Get the value in the widest-possible width.
llvm::APInt ResultVal(Context.Target.getIntMaxTWidth(Tok.getLocation()), 0);