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llvm-project/llvm/test/CodeGen/AMDGPU/cluster-flat-loads-postra.mir

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[AMDGPU] Prevent post-RA scheduler from breaking memory clauses The pre-RA scheduler does load/store clustering, but post-RA scheduler undoes it. Add mutation to prevent it. Differential Revision: https://reviews.llvm.org/D38014 llvm-svn: 313670
2017-09-20 04:54:38 +08:00
# RUN: llc -march=amdgcn -mcpu=tonga -run-pass post-RA-sched -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s
# GCN: FLAT_LOAD_DWORD
# GCN-NEXT: FLAT_LOAD_DWORD
# GCN: FLAT_STORE_DWORD
# GCN-NEXT: FLAT_STORE_DWORD
---
name: cluster_loads_post_ra
tracksRegLiveness: true
registers:
liveins:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
- { reg: '$vgpr0' }
[AMDGPU] Prevent post-RA scheduler from breaking memory clauses The pre-RA scheduler does load/store clustering, but post-RA scheduler undoes it. Add mutation to prevent it. Differential Revision: https://reviews.llvm.org/D38014 llvm-svn: 313670
2017-09-20 04:54:38 +08:00
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $vgpr0
[AMDGPU] Prevent post-RA scheduler from breaking memory clauses The pre-RA scheduler does load/store clustering, but post-RA scheduler undoes it. Add mutation to prevent it. Differential Revision: https://reviews.llvm.org/D38014 llvm-svn: 313670
2017-09-20 04:54:38 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$vgpr0_vgpr1 = IMPLICIT_DEF
$vgpr4_vgpr5 = IMPLICIT_DEF
$vgpr0 = FLAT_LOAD_DWORD $vgpr0_vgpr1, 0, 0, 0, implicit $exec, implicit $flat_scr :: (load 4)
$vgpr4 = FLAT_LOAD_DWORD $vgpr4_vgpr5, 0, 0, 0, implicit $exec, implicit $flat_scr :: (load 4)
$vgpr2 = IMPLICIT_DEF
$vgpr3 = IMPLICIT_DEF
$vgpr6 = IMPLICIT_DEF
$vgpr0 = V_ADD_I32_e32 16, $vgpr2, implicit-def $vcc, implicit $exec
$vgpr1 = V_ADDC_U32_e32 $vgpr3, killed $vgpr6, implicit-def dead $vcc, implicit $vcc, implicit $exec
FLAT_STORE_DWORD $vgpr2_vgpr3, killed $vgpr0, 0, 0, 0, implicit $exec, implicit $flat_scr :: (store 4)
FLAT_STORE_DWORD $vgpr0_vgpr1, killed $vgpr4, 0, 0, 0, implicit $exec, implicit $flat_scr :: (store 4)
[AMDGPU] Prevent post-RA scheduler from breaking memory clauses The pre-RA scheduler does load/store clustering, but post-RA scheduler undoes it. Add mutation to prevent it. Differential Revision: https://reviews.llvm.org/D38014 llvm-svn: 313670
2017-09-20 04:54:38 +08:00
S_ENDPGM
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