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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple thumbv6m-arm-none-eabi -run-pass regallocbasic %s -o - | FileCheck %s
# RUN: llc -mtriple thumbv6m-arm-none-eabi -run-pass greedy %s -o - | FileCheck %s
# RUN: llc -mtriple thumbv6m-arm-none-eabi -run-pass regallocfast %s -o - | FileCheck %s --check-prefix=FAST
# RUN: llc -mtriple thumbv6m-arm-none-eabi -passes=regallocfast %s -o - | FileCheck %s --check-prefix=FAST
...
---
name: constraint_h
alignment: 2
tracksRegLiveness: true
registers:
- { id: 0, class: tgpr }
- { id: 1, class: hgpr }
- { id: 2, class: tgpr }
liveins:
- { reg: '$r0', virtual-reg: '%0' }
frameInfo:
maxAlignment: 4
maxCallFrameSize: 0
localFrameSize: 4
stack:
- { id: 0, size: 4, alignment: 4, local-offset: -4 }
machineFunctionInfo: {}
body: |
bb.0.entry:
liveins: $r0
; CHECK-LABEL: name: constraint_h
; CHECK: liveins: $r0
; CHECK: [[COPY:%[0-9]+]]:tgpr = COPY $r0
; CHECK: tSTRspi [[COPY]], %stack.0, 0, 14 /* CC::al */, $noreg
; CHECK: [[tLDRspi:%[0-9]+]]:tgpr = tLDRspi %stack.0, 0, 14 /* CC::al */, $noreg
; CHECK: [[COPY1:%[0-9]+]]:hgpr = COPY [[tLDRspi]]
; CHECK: INLINEASM &"mov r12, $0", 1 /* sideeffect attdialect */, 1048585 /* reguse:GPRnoip_and_GPRnopc */, %1, 12 /* clobber */, implicit-def early-clobber $r12
; CHECK: tBX_RET 14 /* CC::al */, $noreg
; FAST-LABEL: name: constraint_h
; FAST: liveins: $r0
; FAST: tSTRspi killed renamable $r0, %stack.0, 0, 14 /* CC::al */, $noreg
; FAST: renamable $r0 = tLDRspi %stack.0, 0, 14 /* CC::al */, $noreg
; FAST: renamable $r8 = COPY killed renamable $r0
; FAST: INLINEASM &"mov r12, $0", 1 /* sideeffect attdialect */, 1048585 /* reguse:GPRnoip_and_GPRnopc */, killed renamable $r8, 12 /* clobber */, implicit-def dead early-clobber $r12
; FAST: tBX_RET 14 /* CC::al */, $noreg
%0:tgpr = COPY $r0
tSTRspi %0, %stack.0, 0, 14 /* CC::al */, $noreg
%2:tgpr = tLDRspi %stack.0, 0, 14 /* CC::al */, $noreg
%1:hgpr = COPY %2
INLINEASM &"mov r12, $0", 1 /* sideeffect attdialect */, 1048585 /* reguse:hGPR */, %1, 12 /* clobber */, implicit-def early-clobber $r12
tBX_RET 14 /* CC::al */, $noreg
...
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