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562e34ab2e
When looking for uses/defs to add kill flags, the iterator was double incremented, skipping the first instruction in the bundle. The use register in the first bundle instruction was then incorrectly killed. The "First" instruction should be the BUNDLE itself as the proper reverse iterator endpoint. llvm-svn: 365216
43 lines
1.7 KiB
YAML
43 lines
1.7 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -run-pass=post-RA-sched -verify-machineinstrs -o - %s | FileCheck %s
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# The scheduler was not inspecting the first instruction in the bundle
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# when adding kill flags, so it would incorrectly mark the first use
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# of $vgpr0 as killed.
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---
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name: kill_flag_use_first_bundle_inst
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tracksRegLiveness: true
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machineFunctionInfo:
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isEntryFunction: true
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body: |
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bb.0:
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liveins: $sgpr4_sgpr5, $sgpr7
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; CHECK-LABEL: name: kill_flag_use_first_bundle_inst
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; CHECK: liveins: $sgpr4_sgpr5, $sgpr7
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; CHECK: renamable $sgpr0 = S_LOAD_DWORD_IMM killed renamable $sgpr4_sgpr5, 0, 0, 0
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; CHECK: $m0 = S_MOV_B32 -1
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; CHECK: $vgpr0 = V_MOV_B32_e32 killed $sgpr0, implicit $exec, implicit $exec
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; CHECK: BUNDLE implicit $vgpr0, implicit $m0, implicit $exec {
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; CHECK: DS_GWS_INIT $vgpr0, 8, -1, implicit $m0, implicit $exec
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; CHECK: S_WAITCNT 0
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; CHECK: }
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; CHECK: BUNDLE implicit killed $vgpr0, implicit $m0, implicit $exec {
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; CHECK: DS_GWS_BARRIER killed $vgpr0, 8, -1, implicit $m0, implicit $exec
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; CHECK: S_WAITCNT 0
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; CHECK: }
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renamable $sgpr0 = S_LOAD_DWORD_IMM killed renamable $sgpr4_sgpr5, 0, 0, 0
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$m0 = S_MOV_B32 -1
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$vgpr0 = V_MOV_B32_e32 $sgpr0, implicit $exec, implicit $exec
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BUNDLE implicit $vgpr0, implicit $m0, implicit $exec {
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DS_GWS_INIT $vgpr0, 8, -1, implicit $m0, implicit $exec
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S_WAITCNT 0
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}
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BUNDLE implicit killed $vgpr0, implicit $m0, implicit $exec {
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DS_GWS_BARRIER $vgpr0, 8, -1, implicit $m0, implicit $exec
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S_WAITCNT 0
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}
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...
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