diff options
Diffstat (limited to 'test/CodeGenCXX/bitfield-layout.cpp')
-rw-r--r-- | test/CodeGenCXX/bitfield-layout.cpp | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/CodeGenCXX/bitfield-layout.cpp b/test/CodeGenCXX/bitfield-layout.cpp new file mode 100644 index 0000000..15f33d2 --- /dev/null +++ b/test/CodeGenCXX/bitfield-layout.cpp @@ -0,0 +1,43 @@ +// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -O3 | FileCheck -check-prefix LP64 %s +// RUN: %clang_cc1 %s -triple=i386-apple-darwin10 -emit-llvm -o - -O3 | FileCheck -check-prefix LP32 %s + +// CHECK-LP64: %union.Test1 = type { i32, [4 x i8] } +union Test1 { + int a; + int b: 39; +} t1; + +// CHECK-LP64: %union.Test2 = type { i8 } +union Test2 { + int : 6; +} t2; + +// CHECK-LP64: %union.Test3 = type { [2 x i8] } +union Test3 { + int : 9; +} t3; + + +#define CHECK(x) if (!(x)) return __LINE__ + +int f() { + struct { + int a; + + unsigned long long b : 65; + + int c; + } c; + + c.a = 0; + c.b = (unsigned long long)-1; + c.c = 0; + + CHECK(c.a == 0); + CHECK(c.b == (unsigned long long)-1); + CHECK(c.c == 0); + +// CHECK-LP64: ret i32 0 +// CHECK-LP32: ret i32 0 + return 0; +} |