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llvm-project/llvm/test/CodeGen/AMDGPU/misched-killflags.mir

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ScheduleDAGInstrs: Fix fixupKills() adding too many kill flags. Remove invalid shortcut in fixupKills(): A register needs to be marked live even when we are not adding a kill flag. This is because a partially live register must not get a kill flags, but it still needs to be fully marked live when walking backwards. llvm-svn: 306352
2017-06-27 08:58:48 +08:00
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji -verify-machineinstrs -run-pass=post-RA-sched -o - %s | FileCheck %s
# Make sure ScheduleDAGInstrs::fixupKills does not produce invalid kill flags.
---
name: func0
tracksRegLiveness: true
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: $sgpr7, $sgpr0_sgpr1_sgpr2_sgpr3
ScheduleDAGInstrs: Fix fixupKills() adding too many kill flags. Remove invalid shortcut in fixupKills(): A register needs to be marked live even when we are not adding a kill flag. This is because a partially live register must not get a kill flags, but it still needs to be fully marked live when walking backwards. llvm-svn: 306352
2017-06-27 08:58:48 +08:00
Followup on Proposal to move MIR physical register namespace to '$' 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
$sgpr33 = S_MOV_B32 $sgpr7
$sgpr32 = S_MOV_B32 $sgpr33
$sgpr10 = S_MOV_B32 5
$sgpr9 = S_MOV_B32 4
$sgpr8 = S_MOV_B32 3
BUNDLE implicit-def $sgpr6_sgpr7, implicit-def $sgpr6, implicit-def $sgpr7, implicit-def $scc {
$sgpr6_sgpr7 = S_GETPC_B64
$sgpr6 = S_ADD_U32 internal $sgpr6, 0, implicit-def $scc
$sgpr7 = S_ADDC_U32 internal $sgpr7,0, implicit-def $scc, implicit internal $scc
ScheduleDAGInstrs: Fix fixupKills() adding too many kill flags. Remove invalid shortcut in fixupKills(): A register needs to be marked live even when we are not adding a kill flag. This is because a partially live register must not get a kill flags, but it still needs to be fully marked live when walking backwards. llvm-svn: 306352
2017-06-27 08:58:48 +08:00
}
Followup on Proposal to move MIR physical register namespace to '$' 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
$sgpr4 = S_MOV_B32 $sgpr33
$vgpr0 = V_MOV_B32_e32 $sgpr8, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr8_sgpr9_sgpr10_sgpr11
$vgpr1 = V_MOV_B32_e32 $sgpr9, implicit $exec, implicit $sgpr8_sgpr9_sgpr10_sgpr11
$vgpr2 = V_MOV_B32_e32 $sgpr10, implicit $exec, implicit $sgpr8_sgpr9_sgpr10_sgpr11
$vgpr3 = V_MOV_B32_e32 $sgpr11, implicit $exec, implicit $sgpr8_sgpr9_sgpr10_sgpr11, implicit $exec
S_NOP 0, implicit killed $sgpr6_sgpr7, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit killed $vgpr0_vgpr1_vgpr2_vgpr3
ScheduleDAGInstrs: Fix fixupKills() adding too many kill flags. Remove invalid shortcut in fixupKills(): A register needs to be marked live even when we are not adding a kill flag. This is because a partially live register must not get a kill flags, but it still needs to be fully marked live when walking backwards. llvm-svn: 306352
2017-06-27 08:58:48 +08:00
S_ENDPGM
...
# CHECK-LABEL: name: func0
[SchedModel] Fix for read advance cycles with implicit pseudo operands. The SchedModel allows the addition of ReadAdvances to express that certain operands of the instructions are needed at a later point than the others. RegAlloc may add pseudo operands that are not part of the instruction descriptor, and therefore cannot have any read advance entries. This meant that in some cases the desired read advance was nullified by such a pseudo operand, which still had the original latency. This patch fixes this by making sure that such pseudo operands get a zero latency during DAG construction. Review: Matthias Braun, Ulrich Weigand. https://reviews.llvm.org/D49671 llvm-svn: 345606
2018-10-30 23:04:40 +08:00
# CHECK-DAG: $sgpr10 = S_MOV_B32 5
# CHECK-DAG: $sgpr9 = S_MOV_B32 4
# CHECK-DAG: $sgpr8 = S_MOV_B32 3
# CHECK-DAG: $sgpr33 = S_MOV_B32 killed $sgpr7
Followup on Proposal to move MIR physical register namespace to '$' 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
# CHECK: $vgpr0 = V_MOV_B32_e32 $sgpr8, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr8_sgpr9_sgpr10_sgpr11
[SchedModel] Fix for read advance cycles with implicit pseudo operands. The SchedModel allows the addition of ReadAdvances to express that certain operands of the instructions are needed at a later point than the others. RegAlloc may add pseudo operands that are not part of the instruction descriptor, and therefore cannot have any read advance entries. This meant that in some cases the desired read advance was nullified by such a pseudo operand, which still had the original latency. This patch fixes this by making sure that such pseudo operands get a zero latency during DAG construction. Review: Matthias Braun, Ulrich Weigand. https://reviews.llvm.org/D49671 llvm-svn: 345606
2018-10-30 23:04:40 +08:00
# CHECK: $sgpr32 = S_MOV_B32 $sgpr33
Followup on Proposal to move MIR physical register namespace to '$' 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
# CHECK: BUNDLE implicit-def $sgpr6_sgpr7, implicit-def $sgpr6, implicit-def $sgpr7, implicit-def $scc {
# CHECK: $sgpr6_sgpr7 = S_GETPC_B64
# CHECK: $sgpr6 = S_ADD_U32 internal $sgpr6, 0, implicit-def $scc
# CHECK: $sgpr7 = S_ADDC_U32 internal $sgpr7, 0, implicit-def $scc, implicit internal $scc
ScheduleDAGInstrs: Fix fixupKills() adding too many kill flags. Remove invalid shortcut in fixupKills(): A register needs to be marked live even when we are not adding a kill flag. This is because a partially live register must not get a kill flags, but it still needs to be fully marked live when walking backwards. llvm-svn: 306352
2017-06-27 08:58:48 +08:00
# CHECK: }
[SchedModel] Fix for read advance cycles with implicit pseudo operands. The SchedModel allows the addition of ReadAdvances to express that certain operands of the instructions are needed at a later point than the others. RegAlloc may add pseudo operands that are not part of the instruction descriptor, and therefore cannot have any read advance entries. This meant that in some cases the desired read advance was nullified by such a pseudo operand, which still had the original latency. This patch fixes this by making sure that such pseudo operands get a zero latency during DAG construction. Review: Matthias Braun, Ulrich Weigand. https://reviews.llvm.org/D49671 llvm-svn: 345606
2018-10-30 23:04:40 +08:00
# CHECK: $sgpr4 = S_MOV_B32 killed $sgpr33
Followup on Proposal to move MIR physical register namespace to '$' 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
# CHECK: $vgpr1 = V_MOV_B32_e32 $sgpr9, implicit $exec, implicit $sgpr8_sgpr9_sgpr10_sgpr11
# CHECK: $vgpr2 = V_MOV_B32_e32 $sgpr10, implicit $exec, implicit $sgpr8_sgpr9_sgpr10_sgpr11
# CHECK: $vgpr3 = V_MOV_B32_e32 killed $sgpr11, implicit $exec, implicit $sgpr8_sgpr9_sgpr10_sgpr11, implicit $exec
# CHECK: S_NOP 0, implicit killed $sgpr6_sgpr7, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4, implicit killed $vgpr0_vgpr1_vgpr2_vgpr3
ScheduleDAGInstrs: Fix fixupKills() adding too many kill flags. Remove invalid shortcut in fixupKills(): A register needs to be marked live even when we are not adding a kill flag. This is because a partially live register must not get a kill flags, but it still needs to be fully marked live when walking backwards. llvm-svn: 306352
2017-06-27 08:58:48 +08:00
# CHECK: S_ENDPGM