| Matt Arsenault | 61a528a | 2014-09-10 23:26:19 +0000 | [diff] [blame^] | 1 | ; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s |
| 2 | |
| 3 | @ptr_load = addrspace(3) global i32 addrspace(2)* null, 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: BUFFER_LOAD_DWORD |
| 12 | ; SI: BUFFER_STORE_DWORD |
| 13 | ; SI: S_ENDPGM |
| 14 | define void @missing_store_reduced(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 { |
| 15 | %ptr0 = load i32 addrspace(2)* addrspace(3)* @ptr_load, align 8 |
| 16 | %ptr2 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 2 |
| 17 | |
| 18 | store i32 99, i32 addrspace(1)* %gptr, align 4 |
| 19 | %tmp2 = load i32 addrspace(2)* %ptr2, align 4 |
| 20 | |
| 21 | store i32 %tmp2, i32 addrspace(1)* %out, align 4 |
| 22 | ret void |
| 23 | } |
| 24 | |
| 25 | attributes #0 = { nounwind } |
| 26 | |