| 1 | // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s |
| 2 | |
| 3 | __attribute((aligned(16))) float a[128]; |
| 4 | union {int a[4]; __attribute((aligned(16))) float b[4];} b; |
| 5 | |
| 6 | // CHECK: @a = {{.*}}zeroinitializer, align 16 |
| 7 | // CHECK: @b = {{.*}}zeroinitializer, align 16 |
| 8 | |
| 9 | long long int test5[1024]; |
| 10 | // CHECK-DAG: @test5 = common global [1024 x i64] zeroinitializer, align 8 |
| 11 | |
| 12 | // PR5279 - Reduced alignment on typedef. |
| 13 | typedef int myint __attribute__((aligned(1))); |
| 14 | |
| 15 | void test1(myint *p) { |
| 16 | *p = 0; |
| 17 | } |
| 18 | // CHECK: @test1( |
| 19 | // CHECK: store i32 0, i32* {{.*}}, align 1 |
| 20 | // CHECK: ret void |
| 21 | |
| 22 | int test1a(myint *p) { |
| 23 | return *p; |
| 24 | } |
| 25 | // CHECK: @test1a( |
| 26 | // CHECK: load i32, i32* {{.*}}, align 1 |
| 27 | // CHECK: ret i32 |
| 28 | |
| 29 | |
| 30 | // PR5279 - Reduced alignment on typedef. |
| 31 | typedef float __attribute__((vector_size(16), aligned(4))) packedfloat4; |
| 32 | |
| 33 | void test2(packedfloat4 *p) { |
| 34 | *p = (packedfloat4) { 3.2f, 2.3f, 0.1f, 0.0f }; |
| 35 | } |
| 36 | // CHECK: @test2( |
| 37 | // CHECK: store <4 x float> {{.*}}, align 4 |
| 38 | // CHECK: ret void |
| 39 | |
| 40 | |
| 41 | // PR5279 - Reduced alignment on typedef. |
| 42 | typedef float __attribute__((ext_vector_type(3), aligned(4))) packedfloat3; |
| 43 | void test3(packedfloat3 *p) { |
| 44 | *p = (packedfloat3) { 3.2f, 2.3f, 0.1f }; |
| 45 | } |
| 46 | // CHECK: @test3( |
| 47 | // CHECK: %{{.*}} = bitcast <3 x float>* %{{.*}} to <4 x float>* |
| 48 | // CHECK: store <4 x float> {{.*}}, align 4 |
| 49 | // CHECK: ret void |
| 50 | |
| 51 | |
| 52 | |
| 53 | typedef float __attribute__((vector_size(16), aligned(64))) float4align64; |
| 54 | |
| 55 | // rdar://10639962 - Typedef alignment lost in p[]-style dereferencing |
| 56 | void test4(float4align64 *p) { |
| 57 | p[0] = (float4align64){ 3.2f, 2.3f, 0.1f, 0.0f }; |
| 58 | } |
| 59 | // CHECK: @test4( |
| 60 | // CHECK: store <4 x float> {{.*}}, <4 x float>* {{.*}}, align 64 |
| 61 | |
| 62 | // PR24944 - Typedef alignment not honored on no-op cast. |
| 63 | typedef float __attribute__((vector_size(16), aligned(16))) float4align16; |
| 64 | typedef float __attribute__((vector_size(16), aligned(2))) float4align2; |
| 65 | void test6(float4align64 *p) { |
| 66 | float4align64 vec = *(float4align2*) p; |
| 67 | } |
| 68 | // CHECK-LABEL: @test6 |
| 69 | // CHECK: load <4 x float>, <4 x float>* {{.*}}, align 2 |
| 70 | |