llvm-project/llvm/test/CodeGen/AMDGPU/dagcombine-reassociate-bug.ll

34 lines
1.4 KiB
LLVM

; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck %s
; Test for a bug where DAGCombiner::ReassociateOps() was creating adds
; with offset in the first operand and base pointers in the second.
; CHECK-LABEL: {{^}}store_same_base_ptr:
; CHECK: buffer_store_dword v{{[0-9]+}}, [[VADDR:v\[[0-9]+:[0-9]+\]]], [[SADDR:s\[[0-9]+:[0-9]+\]]]
; CHECK: buffer_store_dword v{{[0-9]+}}, [[VADDR]], [[SADDR]]
; CHECK: buffer_store_dword v{{[0-9]+}}, [[VADDR]], [[SADDR]]
; CHECK: buffer_store_dword v{{[0-9]+}}, [[VADDR]], [[SADDR]]
define amdgpu_kernel void @store_same_base_ptr(i32 addrspace(1)* %out) {
entry:
%id = call i32 @llvm.amdgcn.workitem.id.x() #0
%offset = sext i32 %id to i64
%offset0 = add i64 %offset, 1027
%ptr0 = getelementptr i32, i32 addrspace(1)* %out, i64 %offset0
store volatile i32 3, i32 addrspace(1)* %ptr0
%offset1 = add i64 %offset, 1026
%ptr1 = getelementptr i32, i32 addrspace(1)* %out, i64 %offset1
store volatile i32 2, i32 addrspace(1)* %ptr1
%offset2 = add i64 %offset, 1025
%ptr2 = getelementptr i32, i32 addrspace(1)* %out, i64 %offset2
store volatile i32 1, i32 addrspace(1)* %ptr2
%offset3 = add i64 %offset, 1024
%ptr3 = getelementptr i32, i32 addrspace(1)* %out, i64 %offset3
store volatile i32 0, i32 addrspace(1)* %ptr3
ret void
}
declare i32 @llvm.amdgcn.workitem.id.x() #0
attributes #0 = { nounwind readnone }