Workaround for PR3173. The fix is correct in the sense that if the enum
code were working correctly, it would be a no-op, but it's not really a
proper fix. That said, I don't really want to touch the enum code at
the moment because I don't understand it very well, and this seems to
be a relatively visible regression.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60680 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 9eeaa86..341baea 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -430,6 +430,9 @@
// Enums are integer constant exprs.
if (const EnumConstantDecl *D = dyn_cast<EnumConstantDecl>(E->getDecl())) {
Result = D->getInitVal();
+ // FIXME: This is an ugly hack around the fact that enums don't set their
+ // signedness consistently; see PR3173
+ Result.setIsUnsigned(!E->getType()->isSignedIntegerType());
return true;
}
diff --git a/test/Sema/enum.c b/test/Sema/enum.c
index b06882b..5782a43 100644
--- a/test/Sema/enum.c
+++ b/test/Sema/enum.c
@@ -55,3 +55,6 @@
enum e0 { // expected-note {{previous definition is here}}
E0 = sizeof(enum e0 { E1 }) // expected-error {{nested redefinition}}
};
+
+// PR3173
+enum { PR3173A, PR3173B = PR3173A+50 };