| Tom Stellard | 49f8bfd | 2015-01-06 18:00:21 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s |
| Matt Arsenault | 61a528a | 2014-09-10 23:26:19 +0000 | [diff] [blame] | 2 | |
| Matt Arsenault | cc8d3b8 | 2014-11-13 19:56:13 +0000 | [diff] [blame] | 3 | @ptr_load = addrspace(3) global i32 addrspace(2)* undef, align 8 |
| Matt Arsenault | 61a528a | 2014-09-10 23:26:19 +0000 | [diff] [blame] | 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 | |
| Tom Stellard | 79243d9 | 2014-10-01 17:15:17 +0000 | [diff] [blame] | 8 | ; FUNC-LABEL: {{^}}missing_store_reduced: |
| Tom Stellard | 0d23ebe | 2016-08-29 19:42:52 +0000 | [diff] [blame] | 9 | ; SI: s_load_dwordx2 |
| Tom Stellard | 326d6ec | 2014-11-05 14:50:53 +0000 | [diff] [blame] | 10 | ; SI: ds_read_b64 |
| Changpeng Fang | 71369b3 | 2016-05-26 19:35:29 +0000 | [diff] [blame] | 11 | ; SI-DAG: buffer_store_dword |
| 12 | ; SI-DAG: v_readfirstlane_b32 s[[PTR_LO:[0-9]+]], v{{[0-9]+}} |
| Tom Stellard | 467b5b9 | 2016-02-20 00:37:25 +0000 | [diff] [blame] | 13 | ; SI: v_readfirstlane_b32 s[[PTR_HI:[0-9]+]], v{{[0-9]+}} |
| Tom Stellard | 0d23ebe | 2016-08-29 19:42:52 +0000 | [diff] [blame] | 14 | ; SI: s_nop 3 |
| Tom Stellard | 467b5b9 | 2016-02-20 00:37:25 +0000 | [diff] [blame] | 15 | ; SI: s_load_dword s{{[0-9]+}}, s{{\[}}[[PTR_LO]]:[[PTR_HI]]{{\]}} |
| Tom Stellard | 326d6ec | 2014-11-05 14:50:53 +0000 | [diff] [blame] | 16 | ; SI: buffer_store_dword |
| 17 | ; SI: s_endpgm |
| Matt Arsenault | 61a528a | 2014-09-10 23:26:19 +0000 | [diff] [blame] | 18 | define void @missing_store_reduced(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 { |
| David Blaikie | a79ac14 | 2015-02-27 21:17:42 +0000 | [diff] [blame] | 19 | %ptr0 = load i32 addrspace(2)*, i32 addrspace(2)* addrspace(3)* @ptr_load, align 8 |
| David Blaikie | 79e6c74 | 2015-02-27 19:29:02 +0000 | [diff] [blame] | 20 | %ptr2 = getelementptr inbounds i32, i32 addrspace(2)* %ptr0, i64 2 |
| Matt Arsenault | 61a528a | 2014-09-10 23:26:19 +0000 | [diff] [blame] | 21 | |
| 22 | store i32 99, i32 addrspace(1)* %gptr, align 4 |
| David Blaikie | a79ac14 | 2015-02-27 21:17:42 +0000 | [diff] [blame] | 23 | %tmp2 = load i32, i32 addrspace(2)* %ptr2, align 4 |
| Matt Arsenault | 61a528a | 2014-09-10 23:26:19 +0000 | [diff] [blame] | 24 | |
| 25 | store i32 %tmp2, i32 addrspace(1)* %out, align 4 |
| 26 | ret void |
| 27 | } |
| 28 | |
| 29 | attributes #0 = { nounwind } |
| 30 | |