Fix bit-field promotion to be a bit closer to the behavior of gcc.
Patch by Enea Zaffanella, with some simplifications/corrections to
isPromotableBitField by me.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79510 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/bitfield-promote-int-16bit.c b/test/Sema/bitfield-promote-int-16bit.c
new file mode 100644
index 0000000..12d4720
--- /dev/null
+++ b/test/Sema/bitfield-promote-int-16bit.c
@@ -0,0 +1,25 @@
+// RUN: clang-cc -fsyntax-only -verify %s -triple pic16-unknown-unknown
+
+// Check that int-sized unsigned bit-fields promote to unsigned int
+// on targets where sizeof(unsigned short) == sizeof(unsigned int)
+
+enum E { ec1, ec2, ec3 };
+struct S {
+ enum E e : 16;
+ unsigned short us : 16;
+ unsigned long ul1 : 8;
+ unsigned long ul2 : 16;
+} s;
+
+__typeof(s.e + s.e) x_e;
+unsigned x_e;
+
+__typeof(s.us + s.us) x_us;
+unsigned x_us;
+
+__typeof(s.ul1 + s.ul1) x_ul1;
+signed x_ul1;
+
+__typeof(s.ul2 + s.ul2) x_ul2;
+unsigned x_ul2;
+