Teach Type::is[un]SignedIntegerType about enum decls. This allows the code generator
to emit signed comparisons when needed for enum decl references. This implements
test/CodeGen/enum.c. I think enums should be good now.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41572 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/enum.c b/test/CodeGen/enum.c
new file mode 100644
index 0000000..f671dfc
--- /dev/null
+++ b/test/CodeGen/enum.c
@@ -0,0 +1,18 @@
+// RUN: clang %s -emit-llvm | llvm-as | opt -std-compile-opts | llvm-dis | grep 'ret i32 6'
+
+static enum { foo, bar = 1U } z;
+
+int main (void)
+{
+ int r = 0;
+
+ if (bar - 2 < 0)
+ r += 4;
+ if (foo - 1 < 0)
+ r += 2;
+ if (z - 1 < 0)
+ r++;
+
+ return r;
+}
+