mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-02-01 05:01:59 +01:00
bb37713abf
Summary: In some cases the KILL was causing a hazard to be introduced as these were scheduled into hazard slots, but don't result in an instruction. KILL shouldn't be considered for hazard recognition. Change-Id: Ib6d2a2160f8c94cd0ce611ab198c7e4f46aeffcf Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, tpr, t-tye, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D58898 llvm-svn: 355384
33 lines
1.1 KiB
YAML
33 lines
1.1 KiB
YAML
# RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass post-RA-sched %s -o - | FileCheck -check-prefix=GFX90 %s
|
|
|
|
# This tests that a KILL isn't considered as a valid instruction for a hazard
|
|
# slot (e.g. m0 def followed by V_INTERP for gfx9)
|
|
# The hazard recognizer should mov another instruction into that slot (in this case the S_MOV_B32
|
|
|
|
--- |
|
|
define amdgpu_ps void @_amdgpu_ps_main() #0 { ret void }
|
|
...
|
|
---
|
|
# CHECK-LABEL: name: _amdgpu_ps_main
|
|
# CHECK-LABEL: bb.0:
|
|
# GFX90: $m0 = S_MOV_B32 killed renamable $sgpr4
|
|
# GFX90-NEXT: KILL undef renamable $sgpr2
|
|
# GFX90-NEXT: S_MOV_B32 0
|
|
# GFX90-NEXT: V_INTERP_MOV_F32
|
|
name: _amdgpu_ps_main
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0:
|
|
liveins: $sgpr2, $sgpr3, $sgpr4
|
|
|
|
$sgpr6 = S_MOV_B32 killed $sgpr3
|
|
renamable $sgpr8_sgpr9_sgpr10_sgpr11 = S_LOAD_DWORDX4_IMM renamable $sgpr6_sgpr7, 16, 0
|
|
$m0 = S_MOV_B32 killed renamable $sgpr4
|
|
dead renamable $sgpr0 = KILL undef renamable $sgpr2
|
|
renamable $vgpr0 = V_INTERP_MOV_F32 2, 0, 0, implicit $m0, implicit $exec
|
|
renamable $sgpr0 = S_MOV_B32 0
|
|
|
|
S_ENDPGM
|
|
|
|
...
|