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 | |