2 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/bitfield-promote.c b/test/CodeGen/bitfield-promote.c
new file mode 100644
index 0000000000..5894e51626
--- /dev/null
+++ b/test/CodeGen/bitfield-promote.c
@@ -0,0 +1,19 @@
+// RUN: clang -O3 -emit-llvm -S -o %t %s &&
+// RUN: grep 'ret i64 4294967292' %t | count 2 &&
+// RUN: grep 'ret i64 -4' %t | count 1 &&
+// RUN: true
+
+long long f0(void) {
+ struct { unsigned f0 : 32; } x = { 18 };
+ return (long long) (x.f0 - (int) 22);
+}
+
+long long f1(void) {
+ struct { unsigned f0 : 31; } x = { 18 };
+ return (long long) (x.f0 - (int) 22);
+}
+
+long long f2(void) {
+ struct { unsigned f0     ; } x = { 18 };
+ return (long long) (x.f0 - (int) 22);
+}
diff --git a/test/Sema/bitfield.c b/test/Sema/bitfield.c
index 7a7f96c752..e81b802789 100644
--- a/test/Sema/bitfield.c
+++ b/test/Sema/bitfield.c
@@ -25,3 +25,7 @@ struct a {
   unsigned : -2;  // expected-error {{anonymous bit-field has negative width (-2)}}
   float : 12;     // expected-error {{anonymous bit-field has non-integral type 'float'}}
 };
+
+struct b {unsigned x : 2;} x;
+__typeof__(x.x+1) y;
+int y;