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llvm-project/clang/test/CodeGen/transparent-union.c

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Fix IRGen for passing transparent unions We have had a test for this for a long time with a FIXME saying what we should be doing. This just does it. Fixes PR21573. llvm-svn: 222074
2014-11-15 09:41:41 +08:00
// RUN: %clang_cc1 -Werror -triple x86_64-linux -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -Werror -triple i386-linux -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -Werror -triple armv7-linux -emit-llvm -o - %s | FileCheck %s --check-prefix=ARM
// RUN: %clang_cc1 -Werror -triple powerpc64le-linux -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -Werror -triple aarch64-linux -emit-llvm -o - %s | FileCheck %s
Sema/transparent_union: Make sure to add implicit cast when constructing implicit union values for the transparent_union extension. llvm-svn: 114236
2010-09-18 07:21:43 +08:00
typedef union {
void *f0;
} transp_t0 __attribute__((transparent_union));
void f0(transp_t0 obj);
Fix IRGen for passing transparent unions We have had a test for this for a long time with a FIXME saying what we should be doing. This just does it. Fixes PR21573. llvm-svn: 222074
2014-11-15 09:41:41 +08:00
// CHECK-LABEL: define void @f1_0(i32* %a0)
// CHECK: call void @f0(i8* %{{.*}})
Implement GNU C extension: two types are compatible if they appear as a function argument, one of the types is a transparent union type and the other type is compatible with a union member llvm-svn: 117243
2010-10-25 02:30:18 +08:00
// CHECK: call void %{{.*}}(i8* %{{[a-z0-9]*}})
Sema/transparent_union: Make sure to add implicit cast when constructing implicit union values for the transparent_union extension. llvm-svn: 114236
2010-09-18 07:21:43 +08:00
// CHECK: }
Fix IRGen for passing transparent unions We have had a test for this for a long time with a FIXME saying what we should be doing. This just does it. Fixes PR21573. llvm-svn: 222074
2014-11-15 09:41:41 +08:00
// ARM-LABEL: define arm_aapcscc void @f1_0(i32* %a0)
// ARM: call arm_aapcscc void @f0(i8* %{{.*}})
// ARM: call arm_aapcscc void %{{.*}}(i8* %{{[a-z0-9]*}})
// ARM: }
Sema/transparent_union: Make sure to add implicit cast when constructing implicit union values for the transparent_union extension. llvm-svn: 114236
2010-09-18 07:21:43 +08:00
void f1_0(int *a0) {
Implement GNU C extension: two types are compatible if they appear as a function argument, one of the types is a transparent union type and the other type is compatible with a union member llvm-svn: 117243
2010-10-25 02:30:18 +08:00
void (*f0p)(void *) = f0;
Sema/transparent_union: Make sure to add implicit cast when constructing implicit union values for the transparent_union extension. llvm-svn: 114236
2010-09-18 07:21:43 +08:00
f0(a0);
Implement GNU C extension: two types are compatible if they appear as a function argument, one of the types is a transparent union type and the other type is compatible with a union member llvm-svn: 117243
2010-10-25 02:30:18 +08:00
f0p(a0);
Sema/transparent_union: Make sure to add implicit cast when constructing implicit union values for the transparent_union extension. llvm-svn: 114236
2010-09-18 07:21:43 +08:00
}
void f1_1(int *a0) {
f0((transp_t0) { a0 });
}