diff options
Diffstat (limited to 'llvm/test/Transforms/LoadStoreVectorizer/AMDGPU/insertion-point.ll')
| -rw-r--r-- | llvm/test/Transforms/LoadStoreVectorizer/AMDGPU/insertion-point.ll | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/llvm/test/Transforms/LoadStoreVectorizer/AMDGPU/insertion-point.ll b/llvm/test/Transforms/LoadStoreVectorizer/AMDGPU/insertion-point.ll index 64a0480d8d3..4672224672f 100644 --- a/llvm/test/Transforms/LoadStoreVectorizer/AMDGPU/insertion-point.ll +++ b/llvm/test/Transforms/LoadStoreVectorizer/AMDGPU/insertion-point.ll @@ -2,8 +2,9 @@ target datalayout = "e-p:32:32-p1:64:64-p2:64:64-p3:32:32-p4:64:64-p5:32:32-p24:64:64-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64" -; Check relative position of the inserted vector load relative to the existing -; adds. Vectorized loads should be inserted at the position of the first load. +; Check position of the inserted vector load/store. Vectorized loads should be +; inserted at the position of the first load in the chain, and stores should be +; inserted at the position of the last store. ; CHECK-LABEL: @insert_load_point( ; CHECK: %z = add i32 %x, 4 @@ -59,4 +60,30 @@ entry: ret void } +; Here we have four stores, with an aliasing load before the last one. We can +; vectorize the first two stores as <2 x float>, but this vectorized store must +; be inserted at the location of the second scalar store, not the fourth one. +; +; CHECK-LABEL: @insert_store_point_alias +; CHECK: store <2 x float> +; CHECK: store float +; CHECK-SAME: %a.idx.2 +; CHECK: load float, float addrspace(1)* %a.idx.2 +; CHECK: store float +; CHECK-SAME: %a.idx.3 +define float @insert_store_point_alias(float addrspace(1)* nocapture %a, i64 %idx) { + %a.idx = getelementptr inbounds float, float addrspace(1)* %a, i64 %idx + %a.idx.1 = getelementptr inbounds float, float addrspace(1)* %a.idx, i64 1 + %a.idx.2 = getelementptr inbounds float, float addrspace(1)* %a.idx.1, i64 1 + %a.idx.3 = getelementptr inbounds float, float addrspace(1)* %a.idx.2, i64 1 + + store float 0.0, float addrspace(1)* %a.idx, align 4 + store float 0.0, float addrspace(1)* %a.idx.1, align 4 + store float 0.0, float addrspace(1)* %a.idx.2, align 4 + %x = load float, float addrspace(1)* %a.idx.2, align 4 + store float 0.0, float addrspace(1)* %a.idx.3, align 4 + + ret float %x +} + attributes #0 = { nounwind } |
