vector-alignment.c revision f9e9af7df0cea6e997ac04131c7af6ca4384b0cc 
1// RUN: %clang_cc1 -w -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
2// rdar://11759609
3
4// At or below target max alignment with no aligned attribute should align based
5// on the size of vector.
6double __attribute__((vector_size(16))) v1;
7// CHECK: @v1 {{.*}}, align 16
8double __attribute__((vector_size(32))) v2;
9// CHECK: @v2 {{.*}}, align 32
10
11// Alignment above target max alignment with no aligned attribute should align
12// based on the target max.
13double __attribute__((vector_size(64))) v3;
14// CHECK: @v3 {{.*}}, align 32
15double __attribute__((vector_size(1024))) v4;
16// CHECK: @v4 {{.*}}, align 32
17
18// Aliged attribute should always override.
19double __attribute__((vector_size(16), aligned(16))) v5;
20// CHECK: @v5 {{.*}}, align 16
21double __attribute__((vector_size(16), aligned(64))) v6;
22// CHECK: @v6 {{.*}}, align 64
23double __attribute__((vector_size(32), aligned(16))) v7;
24// CHECK: @v7 {{.*}}, align 16
25double __attribute__((vector_size(32), aligned(64))) v8;
26// CHECK: @v8 {{.*}}, align 64
27
28// Check non-power of 2 widths.
29double __attribute__((vector_size(24))) v9;
30// CHECK: @v9 {{.*}}, align 32
31double __attribute__((vector_size(40))) v10;
32// CHECK: @v10 {{.*}}, align 32
33
34// Check non-power of 2 widths with aligned attribute.
35double __attribute__((vector_size(24), aligned(64))) v11;
36// CHECK: @v11 {{.*}}, align 64
37double __attribute__((vector_size(80), aligned(16))) v12;
38// CHECK: @v12 {{.*}}, align 16
39