xref: /llvm-project/llvm/test/Transforms/InferAlignment/vscale.ll (revision 0f152a55d3e4e71f7c795bf555e40c8895b97077)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
2; RUN: opt -passes=infer-alignment -S < %s | FileCheck %s
3
4; <4 x i32> -> 16 byte alignment
5define void @alignment_sustain(ptr align 16 %ptr) {
6; CHECK-LABEL: define void @alignment_sustain
7; CHECK-SAME: (ptr align 16 [[PTR:%.*]]) {
8; CHECK-NEXT:    [[GEP:%.*]] = getelementptr <vscale x 4 x i32>, ptr [[PTR]], i32 3
9; CHECK-NEXT:    [[LOAD:%.*]] = load <4 x i32>, ptr [[GEP]], align 16
10; CHECK-NEXT:    store <4 x i32> zeroinitializer, ptr [[GEP]], align 16
11; CHECK-NEXT:    ret void
12;
13  %gep = getelementptr <vscale x 4 x i32>, ptr %ptr, i32 3
14
15  %load = load <4 x i32>, ptr %gep, align 16
16  store <4 x i32> zeroinitializer, ptr %gep, align 16
17
18  ret void
19}
20
21; <8 x i32> -> 32 byte alignment
22define void @alignment_increase(ptr align 32 %ptr) {
23; CHECK-LABEL: define void @alignment_increase
24; CHECK-SAME: (ptr align 32 [[PTR:%.*]]) {
25; CHECK-NEXT:    [[GEP:%.*]] = getelementptr <vscale x 8 x i32>, ptr [[PTR]], i32 3
26; CHECK-NEXT:    [[LOAD:%.*]] = load <8 x i32>, ptr [[GEP]], align 32
27; CHECK-NEXT:    store <8 x i32> zeroinitializer, ptr [[GEP]], align 32
28; CHECK-NEXT:    ret void
29;
30  %gep = getelementptr <vscale x 8 x i32>, ptr %ptr, i32 3
31
32  %load = load <8 x i32>, ptr %gep, align 16
33  store <8 x i32> zeroinitializer, ptr %gep, align 16
34
35  ret void
36}
37