| ; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s |
| |
| @ptr_load = addrspace(3) global i32 addrspace(4)* undef, align 8 |
| |
| ; Make sure when the load from %ptr2 is folded the chain isn't lost, |
| ; resulting in losing the store to gptr |
| |
| ; FUNC-LABEL: {{^}}missing_store_reduced: |
| ; SI: s_load_dwordx4 |
| ; SI: ds_read_b64 |
| ; SI-DAG: buffer_store_dword |
| ; SI-DAG: v_readfirstlane_b32 s[[PTR_LO:[0-9]+]], v{{[0-9]+}} |
| ; SI: v_readfirstlane_b32 s[[PTR_HI:[0-9]+]], v{{[0-9]+}} |
| ; SI: s_nop 3 |
| ; SI: s_load_dword s{{[0-9]+}}, s{{\[}}[[PTR_LO]]:[[PTR_HI]]{{\]}} |
| ; SI: buffer_store_dword |
| ; SI: s_endpgm |
| define amdgpu_kernel void @missing_store_reduced(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 { |
| %ptr0 = load i32 addrspace(4)*, i32 addrspace(4)* addrspace(3)* @ptr_load, align 8 |
| %ptr2 = getelementptr inbounds i32, i32 addrspace(4)* %ptr0, i64 2 |
| |
| store i32 99, i32 addrspace(1)* %gptr, align 4 |
| %tmp2 = load i32, i32 addrspace(4)* %ptr2, align 4 |
| |
| store i32 %tmp2, i32 addrspace(1)* %out, align 4 |
| ret void |
| } |
| |
| attributes #0 = { nounwind } |
| |
