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d4c615be8c
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
36 lines
768 B
YAML
36 lines
768 B
YAML
# RUN: llc -mtriple thumbv5e -run-pass=machine-cse -o - %s | FileCheck %s
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# This is a contrived example made to expose a bug in
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# MachineCSE, see PR32538.
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# MachineCSE must not remove this def of $cpsr:
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# CHECK-LABEL: bb.1:
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# CHECK: , $cpsr = tLSLri
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...
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---
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name: spam
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registers:
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- { id: 0, class: tgpr }
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- { id: 1, class: tgpr }
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- { id: 2, class: tgpr }
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- { id: 3, class: tgpr }
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liveins:
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- { reg: '$r0', virtual-reg: '%0' }
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body: |
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bb.0:
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liveins: $r0
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%0 = COPY $r0
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%1, $cpsr = tLSLri %0, 2, 14, $noreg
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tCMPi8 %0, 5, 14, $noreg, implicit-def $cpsr
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tBcc %bb.8, 8, $cpsr
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bb.1:
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%2, $cpsr = tLSLri %0, 2, 14, $noreg
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bb.8:
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liveins: $cpsr
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%3 = COPY $cpsr
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tSTRi killed %3, %0, 0, 14, $noreg
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...
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