1 // RUN: %clang_cc1 -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 10 11 // PR5279 - Reduced alignment on typedef. 12 typedef int myint __attribute__((aligned(1))); 13 14 void test1(myint *p) { 15 *p = 0; 16 } 17 // CHECK: @test1( 18 // CHECK: store i32 0, i32* {{.*}}, align 1 19 // CHECK: ret void 20 21 int test1a(myint *p) { 22 return *p; 23 } 24 // CHECK: @test1a( 25 // CHECK: load i32* {{.*}}, align 1 26 // CHECK: ret i32 27 28 29 // PR5279 - Reduced alignment on typedef. 30 typedef float __attribute__((vector_size(16), aligned(4))) packedfloat4; 31 32 void test2(packedfloat4 *p) { 33 *p = (packedfloat4) { 3.2f, 2.3f, 0.1f, 0.0f }; 34 } 35 // CHECK: @test2( 36 // CHECK: store <4 x float> {{.*}}, align 4 37 // CHECK: ret void 38 39 40 // PR5279 - Reduced alignment on typedef. 41 typedef float __attribute__((ext_vector_type(3), aligned(4))) packedfloat3; 42 void test3(packedfloat3 *p) { 43 *p = (packedfloat3) { 3.2f, 2.3f, 0.1f }; 44 } 45 // CHECK: @test3( 46 // CHECK: %{{.*}} = bitcast <3 x float>* %{{.*}} to <4 x float>* 47 // CHECK: store <4 x float> {{.*}}, align 4 48 // CHECK: ret void 49 50 51 52 typedef float __attribute__((vector_size(16), aligned(64))) float4align64; 53 54 // rdar://10639962 - Typedef alignment lost in p[]-style dereferencing 55 void test4(float4align64 *p) { 56 p[0] = (float4align64){ 3.2f, 2.3f, 0.1f, 0.0f }; 57 } 58 // CHECK: @test4( 59 // CHECK: store <4 x float> {{.*}}, <4 x float>* {{.*}}, align 64 60 61
