1 files changed, 34 insertions, 0 deletions
diff --git a/clang/test/Sema/bitfield-promote.c b/clang/test/Sema/bitfield-promote.c
new file mode 100644
index 0000000..4d14ad1
--- /dev/null
+++ b/clang/test/Sema/bitfield-promote.c
@@ -0,0 +1,34 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+struct {unsigned x : 2;} x;
+__typeof__((x.x+=1)+1) y;
+__typeof__(x.x<<1) y;
+int y;
+
+
+struct { int x : 8; } x1;
+long long y1;
+__typeof__(((long long)x1.x + 1)) y1;
+
+
+// Check for extensions: variously sized unsigned bit-fields fitting
+// into a signed int promote to signed int.
+enum E { ec1, ec2, ec3 };
+struct S {
+  enum E          e : 2;
+  unsigned short us : 4;
+  unsigned long long ul1 : 8;
+  unsigned long long ul2 : 50;
+} s;
+
+__typeof(s.e + s.e) x_e;
+int x_e;
+
+__typeof(s.us + s.us) x_us;
+int x_us;
+
+__typeof(s.ul1 + s.ul1) x_ul1;
+int x_ul1;
+
+__typeof(s.ul2 + s.ul2) x_ul2;
+unsigned long long x_ul2;
+