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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/cmpbr-branch-relaxation.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple arm64-apple-ios -mattr +cmpbr -o - -aarch64-cb-offset-bits=3 \
# RUN: -run-pass=branch-relaxation -verify-machineinstrs -simplify-mir %s | \
# RUN: FileCheck -check-prefix=RELAX %s
# RUN: llc -mtriple arm64-apple-ios -mattr +cmpbr -o - -aarch64-cb-offset-bits=9 \
# RUN: -run-pass=branch-relaxation -verify-machineinstrs -simplify-mir %s | \
# RUN: FileCheck -check-prefix=NO-RELAX %s
---
name: relax_cb
registers:
- { id: 0, class: gpr32 }
- { id: 1, class: gpr32 }
liveins:
- { reg: '$w0', virtual-reg: '%0' }
- { reg: '$w1', virtual-reg: '%1' }
body: |
; RELAX-LABEL: name: relax_cb
; RELAX: bb.0:
; RELAX-NEXT: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
; RELAX-NEXT: [[COPY1:%[0-9]+]]:gpr32 = COPY $w1
; RELAX-NEXT: CBWPrr 1, [[COPY]], [[COPY1]], %bb.1
; RELAX-NEXT: B %bb.2
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: bb.1:
; RELAX-NEXT: [[ADDWrr:%[0-9]+]]:gpr32 = ADDWrr [[COPY]], [[COPY1]]
; RELAX-NEXT: [[ADDWrr1:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr]], [[COPY1]]
; RELAX-NEXT: [[ADDWrr2:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr1]], [[ADDWrr]]
; RELAX-NEXT: [[ADDWrr3:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr2]], [[ADDWrr1]]
; RELAX-NEXT: [[ADDWrr4:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr3]], [[ADDWrr2]]
; RELAX-NEXT: $w0 = ADDWrr [[ADDWrr4]], [[ADDWrr3]]
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: bb.2:
; RELAX-NEXT: RET_ReallyLR implicit $w0
;
; NO-RELAX-LABEL: name: relax_cb
; NO-RELAX: bb.0:
; NO-RELAX-NEXT: successors: %bb.1, %bb.2
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
; NO-RELAX-NEXT: [[COPY1:%[0-9]+]]:gpr32 = COPY $w1
; NO-RELAX-NEXT: CBWPrr 0, [[COPY]], [[COPY1]], %bb.2
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: bb.1:
; NO-RELAX-NEXT: [[ADDWrr:%[0-9]+]]:gpr32 = ADDWrr [[COPY]], [[COPY1]]
; NO-RELAX-NEXT: [[ADDWrr1:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr]], [[COPY1]]
; NO-RELAX-NEXT: [[ADDWrr2:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr1]], [[ADDWrr]]
; NO-RELAX-NEXT: [[ADDWrr3:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr2]], [[ADDWrr1]]
; NO-RELAX-NEXT: [[ADDWrr4:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr3]], [[ADDWrr2]]
; NO-RELAX-NEXT: $w0 = ADDWrr [[ADDWrr4]], [[ADDWrr3]]
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: bb.2:
; NO-RELAX-NEXT: RET_ReallyLR implicit $w0
bb.0:
successors: %bb.1, %bb.2
%0:gpr32 = COPY $w0
%1:gpr32 = COPY $w1
CBWPrr 0, %0, %1, %bb.2
bb.1:
successors: %bb.2
%2:gpr32 = ADDWrr %0, %1
%3:gpr32 = ADDWrr %2, %1
%4:gpr32 = ADDWrr %3, %2
%5:gpr32 = ADDWrr %4, %3
%6:gpr32 = ADDWrr %5, %4
$w0 = ADDWrr %6, %5
bb.2:
RET_ReallyLR implicit $w0
...
---
name: relax_and_split_block
tracksRegLiveness: true
registers:
- { id: 0, class: gpr32 }
- { id: 1, class: gpr32 }
liveins:
- { reg: '$w0', virtual-reg: '%0' }
- { reg: '$w1', virtual-reg: '%1' }
body: |
; RELAX-LABEL: name: relax_and_split_block
; RELAX: bb.0:
; RELAX-NEXT: liveins: $w0, $w1
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
; RELAX-NEXT: [[COPY1:%[0-9]+]]:gpr32 = COPY $w1
; RELAX-NEXT: CBWPrr 1, [[COPY]], [[COPY1]], %bb.3
; RELAX-NEXT: B %bb.2
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: bb.3:
; RELAX-NEXT: liveins: $w0, $w1
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: CBWPrr 0, [[COPY]], [[COPY1]], %bb.1
; RELAX-NEXT: B %bb.2
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: bb.1:
; RELAX-NEXT: liveins: $w0, $w1
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: [[ADDWrr:%[0-9]+]]:gpr32 = ADDWrr [[COPY]], [[COPY1]]
; RELAX-NEXT: [[ADDWrr1:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr]], [[COPY1]]
; RELAX-NEXT: [[ADDWrr2:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr1]], [[ADDWrr]]
; RELAX-NEXT: [[ADDWrr3:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr2]], [[ADDWrr1]]
; RELAX-NEXT: [[ADDWrr4:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr3]], [[ADDWrr2]]
; RELAX-NEXT: $w0 = ADDWrr [[ADDWrr4]], [[ADDWrr3]]
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: bb.2:
; RELAX-NEXT: liveins: $w0, $w1
; RELAX-NEXT: {{ $}}
; RELAX-NEXT: RET_ReallyLR implicit $w0
;
; NO-RELAX-LABEL: name: relax_and_split_block
; NO-RELAX: bb.0:
; NO-RELAX-NEXT: successors: %bb.1, %bb.2
; NO-RELAX-NEXT: liveins: $w0, $w1
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: [[COPY:%[0-9]+]]:gpr32 = COPY $w0
; NO-RELAX-NEXT: [[COPY1:%[0-9]+]]:gpr32 = COPY $w1
; NO-RELAX-NEXT: CBWPrr 0, [[COPY]], [[COPY1]], %bb.2
; NO-RELAX-NEXT: CBWPrr 1, [[COPY]], [[COPY1]], %bb.2
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: bb.1:
; NO-RELAX-NEXT: liveins: $w0, $w1
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: [[ADDWrr:%[0-9]+]]:gpr32 = ADDWrr [[COPY]], [[COPY1]]
; NO-RELAX-NEXT: [[ADDWrr1:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr]], [[COPY1]]
; NO-RELAX-NEXT: [[ADDWrr2:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr1]], [[ADDWrr]]
; NO-RELAX-NEXT: [[ADDWrr3:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr2]], [[ADDWrr1]]
; NO-RELAX-NEXT: [[ADDWrr4:%[0-9]+]]:gpr32 = ADDWrr [[ADDWrr3]], [[ADDWrr2]]
; NO-RELAX-NEXT: $w0 = ADDWrr [[ADDWrr4]], [[ADDWrr3]]
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: bb.2:
; NO-RELAX-NEXT: liveins: $w0, $w1
; NO-RELAX-NEXT: {{ $}}
; NO-RELAX-NEXT: RET_ReallyLR implicit $w0
bb.0:
successors: %bb.1, %bb.2
liveins: $w0, $w1
%0:gpr32 = COPY $w0
%1:gpr32 = COPY $w1
CBWPrr 0, %0, %1, %bb.2
CBWPrr 1, %0, %1, %bb.2
bb.1:
successors: %bb.2
liveins: $w0, $w1
%2:gpr32 = ADDWrr %0, %1
%3:gpr32 = ADDWrr %2, %1
%4:gpr32 = ADDWrr %3, %2
%5:gpr32 = ADDWrr %4, %3
%6:gpr32 = ADDWrr %5, %4
$w0 = ADDWrr %6, %5
bb.2:
liveins: $w0, $w1
RET_ReallyLR implicit $w0
...