1 ; RUN: llc -mtriple=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s
3 @ptr_load = addrspace(3) global ptr 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: v_readfirstlane_b32 s[[PTR_LO:[0-9]+]], v{{[0-9]+}}
12 ; SI-DAG: v_readfirstlane_b32 s[[PTR_HI:[0-9]+]], v{{[0-9]+}}
13 ; SI-DAG: s_load_dword s{{[0-9]+}}, s[[[PTR_LO]]:[[PTR_HI]]]
14 ; SI-DAG: buffer_store_dword
15 ; SI-DAG: buffer_store_dword
17 define amdgpu_kernel void @missing_store_reduced(ptr addrspace(1) %out, ptr addrspace(1) %gptr) #0 {
18 %ptr0 = load ptr addrspace(4), ptr addrspace(3) @ptr_load, align 8
19 %ptr2 = getelementptr inbounds i32, ptr addrspace(4) %ptr0, i64 2
21 store i32 99, ptr addrspace(1) %gptr, align 4
22 %tmp2 = load i32, ptr addrspace(4) %ptr2, align 4
24 store i32 %tmp2, ptr addrspace(1) %out, align 4
28 attributes #0 = { nounwind }