e2303a448e
Fast register allocator skips bundled MIs, as the main assignment loop uses MachineBasicBlock::iterator (= MachineInstrBundleIterator) This was causing SIInsertWaitcnts to crash which expects all instructions to have registers assigned. This patch makes sure to set everything inside bundle to the same assignments done on BUNDLE header. Reviewed By: qcolombet Differential Revision: https://reviews.llvm.org/D90369
27 lines
993 B
YAML
27 lines
993 B
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -march=amdgcn -mcpu=gfx902 -verify-machineinstrs -run-pass=regallocfast %s -o - | FileCheck -check-prefixes=GCN,XNACK,GCX9 %s
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---
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name: fast_regalloc_bundle_handling
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tracksRegLiveness: true
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registers:
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- { id: 0, class: vgpr_32 }
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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body: |
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bb.0:
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; GCN-LABEL: name: fast_regalloc_bundle_handling
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; GCN: renamable $vgpr0 = IMPLICIT_DEF
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; GCN: renamable $vgpr1 = IMPLICIT_DEF
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; GCN: renamable $vgpr0 = BUNDLE implicit killed renamable $vgpr0, implicit killed renamable $vgpr1, implicit $exec {
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; GCN: renamable $vgpr0 = V_ADD_U32_e32 $vgpr0, $vgpr1, implicit $exec
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; GCN: }
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; GCN: S_ENDPGM 0, implicit killed renamable $vgpr0
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%0 = IMPLICIT_DEF
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%1 = IMPLICIT_DEF
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%2 = BUNDLE implicit %0, implicit %1, implicit $exec {
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%2 = V_ADD_U32_e32 %0, %1, implicit $exec
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}
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S_ENDPGM 0, implicit %2
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...
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