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
test1(myint * p)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
test1a(myint * p)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
test2(packedfloat4 * p)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;
test3(packedfloat3 * p)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
test4(float4align64 * p)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;
test6(float4align64 * p)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