xref: /aosp_15_r20/external/clang/test/CodeGen/transparent-union.c (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -Werror -triple x86_64-linux -emit-llvm -o - %s | FileCheck %s
2*67e74705SXin Li // RUN: %clang_cc1 -Werror -triple i386-linux -emit-llvm -o - %s | FileCheck %s
3*67e74705SXin Li // RUN: %clang_cc1 -Werror -triple armv7-linux -emit-llvm -o - %s | FileCheck %s --check-prefix=ARM
4*67e74705SXin Li // RUN: %clang_cc1 -Werror -triple powerpc64le-linux -emit-llvm -o - %s | FileCheck %s
5*67e74705SXin Li // RUN: %clang_cc1 -Werror -triple aarch64-linux -emit-llvm -o - %s | FileCheck %s
6*67e74705SXin Li 
7*67e74705SXin Li typedef union {
8*67e74705SXin Li   void *f0;
9*67e74705SXin Li } transp_t0 __attribute__((transparent_union));
10*67e74705SXin Li 
11*67e74705SXin Li void f0(transp_t0 obj);
12*67e74705SXin Li 
13*67e74705SXin Li // CHECK-LABEL: define void @f1_0(i32* %a0)
14*67e74705SXin Li // CHECK:  call void @f0(i8* %{{.*}})
15*67e74705SXin Li // CHECK:  call void %{{.*}}(i8* %{{[a-z0-9]*}})
16*67e74705SXin Li // CHECK: }
17*67e74705SXin Li 
18*67e74705SXin Li // ARM-LABEL: define arm_aapcscc void @f1_0(i32* %a0)
19*67e74705SXin Li // ARM:  call arm_aapcscc void @f0(i8* %{{.*}})
20*67e74705SXin Li // ARM:  call arm_aapcscc void %{{.*}}(i8* %{{[a-z0-9]*}})
21*67e74705SXin Li // ARM: }
f1_0(int * a0)22*67e74705SXin Li void f1_0(int *a0) {
23*67e74705SXin Li   void (*f0p)(void *) = f0;
24*67e74705SXin Li   f0(a0);
25*67e74705SXin Li   f0p(a0);
26*67e74705SXin Li }
27*67e74705SXin Li 
f1_1(int * a0)28*67e74705SXin Li void f1_1(int *a0) {
29*67e74705SXin Li   f0((transp_t0) { a0 });
30*67e74705SXin Li }
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