diff options
Diffstat (limited to 'clang/test/CodeGen/ext-vector-member-alignment.c')
| -rw-r--r-- | clang/test/CodeGen/ext-vector-member-alignment.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/clang/test/CodeGen/ext-vector-member-alignment.c b/clang/test/CodeGen/ext-vector-member-alignment.c new file mode 100644 index 0000000..49e6997 --- /dev/null +++ b/clang/test/CodeGen/ext-vector-member-alignment.c @@ -0,0 +1,27 @@ +// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s + +typedef float float4 __attribute__((ext_vector_type(4))); + +struct __attribute__((packed, aligned(4))) struct1 { + float4 position; +}; +int x = __alignof(struct struct1); + +float4 f(struct struct1* x) { return x->position; } + +void func(struct struct1* p, float *a, float *b, float c) { + p->position.x = c; + *a = p->position.y; + *b = p->position[0]; + p->position[2] = c; + // FIXME: We should be able to come up with a more aggressive alignment + // estimate. + // CHECK: @func + // CHECK: load <4 x float>* {{%.*}}, align 1 + // CHECK: store <4 x float> {{%.*}}, <4 x float>* {{%.*}}, align 1 + // CHECK: load <4 x float>* {{%.*}}, align 1 + // CHECK: load <4 x float>* {{%.*}}, align 1 + // CHECK: load <4 x float>* {{%.*}}, align 1 + // CHECK: store <4 x float> {{%.*}}, <4 x float>* {{%.*}}, align 1 + // CHECK: ret void +} |