1; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s
2
3@ptr_load = addrspace(3) global i32 addrspace(2)* undef, align 8
4
5; Make sure when the load from %ptr2 is folded the chain isn't lost,
6; resulting in losing the store to gptr
7
8; FUNC-LABEL: {{^}}missing_store_reduced:
9; SI: ds_read_b64
10; SI: buffer_store_dword
11; SI: v_readfirstlane_b32 s[[PTR_LO:[0-9]+]], v{{[0-9]+}}
12; SI: v_readfirstlane_b32 s[[PTR_HI:[0-9]+]], v{{[0-9]+}}
13; SI: s_load_dword s{{[0-9]+}}, s{{\[}}[[PTR_LO]]:[[PTR_HI]]{{\]}}
14; SI: buffer_store_dword
15; SI: s_endpgm
16define void @missing_store_reduced(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 {
17  %ptr0 = load i32 addrspace(2)*, i32 addrspace(2)* addrspace(3)* @ptr_load, align 8
18  %ptr2 = getelementptr inbounds i32, i32 addrspace(2)* %ptr0, i64 2
19
20  store i32 99, i32 addrspace(1)* %gptr, align 4
21  %tmp2 = load i32, i32 addrspace(2)* %ptr2, align 4
22
23  store i32 %tmp2, i32 addrspace(1)* %out, align 4
24  ret void
25}
26
27attributes #0 = { nounwind }
28
29