xref: /llvm-project/llvm/test/CodeGen/SPIRV/pointers/getelementptr-bitcast-load.ll (revision 67d3ef74b31e1517d4f679e754cc2b3041c95901)
1; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
2; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -filetype=obj | spirv-val %}
3
4; CHECK-DAG: %[[#INT8:]] = OpTypeInt 8 0
5; CHECK-DAG: %[[#VEC3:]] = OpTypeVector %[[#INT8]] 3
6; CHECK-DAG: %[[#VEC4:]] = OpTypeVector %[[#INT8]] 4
7; CHECK-DAG: %[[#PTR_VEC3:]] = OpTypePointer CrossWorkgroup %[[#VEC3]]
8; CHECK-DAG: %[[#PTR_VEC4:]] = OpTypePointer CrossWorkgroup %[[#VEC4]]
9
10; CHECK: %[[#AC1:]] = OpInBoundsPtrAccessChain %[[#PTR_VEC3]] %[[#]] %[[#]]
11; CHECK: %[[#BC1:]] = OpBitcast %[[#PTR_VEC4]] %[[#AC1]]
12; CHECK: %[[#LD1:]] = OpLoad %[[#VEC4]] %[[#BC1]] Aligned 4
13; CHECK: OpReturn
14
15define spir_kernel void @foo(ptr addrspace(1) %a, i64 %b) {
16  %index = getelementptr inbounds <3 x i8>, ptr addrspace(1) %a, i64 %b
17  %loadv = load <4 x i8>, ptr addrspace(1) %index, align 4
18  ret void
19}
20
21; CHECK: %[[#AC2:]] = OpInBoundsPtrAccessChain %[[#PTR_VEC3]] %[[#]] %[[#]]
22; CHECK: %[[#BC2:]] = OpBitcast %[[#PTR_VEC4]] %[[#AC2]]
23; CHECK: %[[#LD2:]] = OpLoad %[[#VEC4]] %[[#BC2]] Aligned 4
24; CHECK: OpReturn
25
26define spir_kernel void @bar(ptr addrspace(1) %a, i64 %b) {
27  %index = getelementptr inbounds <3 x i8>, ptr addrspace(1) %a, i64 %b
28; This redundant bitcast is left here itentionally to simulate the conversion
29; from older LLVM IR with typed pointers.
30  %cast = bitcast ptr addrspace(1) %index to ptr addrspace(1)
31  %loadv = load <4 x i8>, ptr addrspace(1) %cast, align 4
32  ret void
33}
34