YouCompleteMe/cpp/llvm/tools/clang/test/CodeGen/2009-02-13-zerosize-union-field.c
Strahinja Val Markovic 1f51a89d39 Adding more llvm/clang files
These were ignored by git accidentally. We want ALL OF THEM since they all came
in the llvm/clang source distribution.
2012-07-05 17:55:45 -07:00

17 lines
747 B
C

// RUN: %clang_cc1 %s -triple i686-apple-darwin -emit-llvm -o - | FileCheck %s
// Every printf has 'i32 0' for the GEP of the string; no point counting those.
typedef unsigned int Foo __attribute__((aligned(32)));
typedef union{Foo:0;}a;
typedef union{int x; Foo:0;}b;
extern int printf(const char*, ...);
int main() {
// CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 0
printf("%ld\n", sizeof(a));
// CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 1
printf("%ld\n", __alignof__(a));
// CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 4
printf("%ld\n", sizeof(b));
// CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 4
printf("%ld\n", __alignof__(b));
}