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