xref: /aosp_15_r20/external/clang/test/CodeGen/vector-alignment.c (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -w -triple x86_64-apple-darwin10 \
2*67e74705SXin Li // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=SSE
3*67e74705SXin Li // RUN: %clang_cc1 -w -triple   i386-apple-darwin10 \
4*67e74705SXin Li // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=SSE
5*67e74705SXin Li // RUN: %clang_cc1 -w -triple x86_64-apple-darwin10 -target-feature +avx \
6*67e74705SXin Li // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX
7*67e74705SXin Li // RUN: %clang_cc1 -w -triple   i386-apple-darwin10 -target-feature +avx \
8*67e74705SXin Li // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX
9*67e74705SXin Li // RUN: %clang_cc1 -w -triple x86_64-apple-darwin10 -target-feature +avx512f \
10*67e74705SXin Li // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX512
11*67e74705SXin Li // RUN: %clang_cc1 -w -triple   i386-apple-darwin10 -target-feature +avx512f \
12*67e74705SXin Li // RUN:  -emit-llvm -o - %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX512
13*67e74705SXin Li // rdar://11759609
14*67e74705SXin Li 
15*67e74705SXin Li // At or below target max alignment with no aligned attribute should align based
16*67e74705SXin Li // on the size of vector.
17*67e74705SXin Li double __attribute__((vector_size(16))) v1;
18*67e74705SXin Li // SSE: @v1 {{.*}}, align 16
19*67e74705SXin Li // AVX: @v1 {{.*}}, align 16
20*67e74705SXin Li // AVX512: @v1 {{.*}}, align 16
21*67e74705SXin Li double __attribute__((vector_size(32))) v2;
22*67e74705SXin Li // SSE: @v2 {{.*}}, align 16
23*67e74705SXin Li // AVX: @v2 {{.*}}, align 32
24*67e74705SXin Li // AVX512: @v2 {{.*}}, align 32
25*67e74705SXin Li 
26*67e74705SXin Li // Alignment above target max alignment with no aligned attribute should align
27*67e74705SXin Li // based on the target max.
28*67e74705SXin Li double __attribute__((vector_size(64))) v3;
29*67e74705SXin Li // SSE: @v3 {{.*}}, align 16
30*67e74705SXin Li // AVX: @v3 {{.*}}, align 32
31*67e74705SXin Li // AVX512: @v3 {{.*}}, align 64
32*67e74705SXin Li double __attribute__((vector_size(1024))) v4;
33*67e74705SXin Li // SSE: @v4 {{.*}}, align 16
34*67e74705SXin Li // AVX: @v4 {{.*}}, align 32
35*67e74705SXin Li // AVX512: @v4 {{.*}}, align 64
36*67e74705SXin Li 
37*67e74705SXin Li // Aliged attribute should always override.
38*67e74705SXin Li double __attribute__((vector_size(16), aligned(16))) v5;
39*67e74705SXin Li // ALL: @v5 {{.*}}, align 16
40*67e74705SXin Li double __attribute__((vector_size(16), aligned(64))) v6;
41*67e74705SXin Li // ALL: @v6 {{.*}}, align 64
42*67e74705SXin Li double __attribute__((vector_size(32), aligned(16))) v7;
43*67e74705SXin Li // ALL: @v7 {{.*}}, align 16
44*67e74705SXin Li double __attribute__((vector_size(32), aligned(64))) v8;
45*67e74705SXin Li // ALL: @v8 {{.*}}, align 64
46*67e74705SXin Li 
47*67e74705SXin Li // Check non-power of 2 widths.
48*67e74705SXin Li double __attribute__((vector_size(24))) v9;
49*67e74705SXin Li // SSE: @v9 {{.*}}, align 16
50*67e74705SXin Li // AVX: @v9 {{.*}}, align 32
51*67e74705SXin Li // AVX512: @v9 {{.*}}, align 32
52*67e74705SXin Li double __attribute__((vector_size(40))) v10;
53*67e74705SXin Li // SSE: @v10 {{.*}}, align 16
54*67e74705SXin Li // AVX: @v10 {{.*}}, align 32
55*67e74705SXin Li // AVX512: @v10 {{.*}}, align 64
56*67e74705SXin Li 
57*67e74705SXin Li // Check non-power of 2 widths with aligned attribute.
58*67e74705SXin Li double __attribute__((vector_size(24), aligned(64))) v11;
59*67e74705SXin Li // ALL: @v11 {{.*}}, align 64
60*67e74705SXin Li double __attribute__((vector_size(80), aligned(16))) v12;
61*67e74705SXin Li // ALL: @v12 {{.*}}, align 16
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