1 ; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s
3 @ptr_load = addrspace(3) global i32 addrspace(4)* undef, align 8
5 ; Make sure when the load from %ptr2 is folded the chain isn't lost,
6 ; resulting in losing the store to gptr
8 ; FUNC-LABEL: {{^}}missing_store_reduced:
11 ; SI-DAG: buffer_store_dword
12 ; SI-DAG: v_readfirstlane_b32 s[[PTR_LO:[0-9]+]], v{{[0-9]+}}
13 ; SI: v_readfirstlane_b32 s[[PTR_HI:[0-9]+]], v{{[0-9]+}}
15 ; SI: s_load_dword s{{[0-9]+}}, s{{\[}}[[PTR_LO]]:[[PTR_HI]]{{\]}}
16 ; SI: buffer_store_dword
18 define amdgpu_kernel void @missing_store_reduced(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 {
19 %ptr0 = load i32 addrspace(4)*, i32 addrspace(4)* addrspace(3)* @ptr_load, align 8
20 %ptr2 = getelementptr inbounds i32, i32 addrspace(4)* %ptr0, i64 2
22 store i32 99, i32 addrspace(1)* %gptr, align 4
23 %tmp2 = load i32, i32 addrspace(4)* %ptr2, align 4
25 store i32 %tmp2, i32 addrspace(1)* %out, align 4
29 attributes #0 = { nounwind }