derek.holloway
7502bf64a4
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184 lines
5.7 KiB
YAML
184 lines
5.7 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple aarch64 -debugify-and-strip-all-safe -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
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...
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---
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name: fold_scalar
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1
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; (xor (and x, y), y) -> (and (not x), y)
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; CHECK-LABEL: name: fold_scalar
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: %y:_(s32) = COPY $w1
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(s32) = G_XOR %x, [[C]]
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; CHECK-NEXT: %xor:_(s32) = G_AND [[XOR]], %y
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; CHECK-NEXT: $w0 = COPY %xor(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%y:_(s32) = COPY $w1
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%and:_(s32) = G_AND %x, %y
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%xor:_(s32) = G_XOR %and, %y
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$w0 = COPY %xor(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: fold_vector
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $x0, $x1
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; Vector edition
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; CHECK-LABEL: name: fold_vector
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; CHECK: liveins: $x0, $x1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(<2 x s32>) = COPY $x0
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; CHECK-NEXT: %y:_(<2 x s32>) = COPY $x1
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
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; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[C]](s32), [[C]](s32)
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(<2 x s32>) = G_XOR %x, [[BUILD_VECTOR]]
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; CHECK-NEXT: %xor:_(<2 x s32>) = G_AND [[XOR]], %y
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; CHECK-NEXT: $x0 = COPY %xor(<2 x s32>)
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; CHECK-NEXT: RET_ReallyLR implicit $x0
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%x:_(<2 x s32>) = COPY $x0
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%y:_(<2 x s32>) = COPY $x1
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%and:_(<2 x s32>) = G_AND %x, %y
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%xor:_(<2 x s32>) = G_XOR %and, %y
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$x0 = COPY %xor(<2 x s32>)
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RET_ReallyLR implicit $x0
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...
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---
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name: fold_commuted_and
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1
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; (xor (and y, x), y) -> (and (not x), y)
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; CHECK-LABEL: name: fold_commuted_and
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: %y:_(s32) = COPY $w1
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(s32) = G_XOR %x, [[C]]
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; CHECK-NEXT: %xor:_(s32) = G_AND [[XOR]], %y
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; CHECK-NEXT: $w0 = COPY %xor(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%y:_(s32) = COPY $w1
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%and:_(s32) = G_AND %y, %x
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%xor:_(s32) = G_XOR %and, %y
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$w0 = COPY %xor(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: fold_commuted_xor
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1
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; (xor y, (and x, y)) -> (and (not x), y)
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; CHECK-LABEL: name: fold_commuted_xor
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: %y:_(s32) = COPY $w1
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(s32) = G_XOR %x, [[C]]
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; CHECK-NEXT: %xor:_(s32) = G_AND [[XOR]], %y
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; CHECK-NEXT: $w0 = COPY %xor(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%y:_(s32) = COPY $w1
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%and:_(s32) = G_AND %x, %y
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%xor:_(s32) = G_XOR %y, %and
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$w0 = COPY %xor(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: fold_commuted_xor_and
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1
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; (xor y, (and x, y)) -> (and (not x), y)
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; CHECK-LABEL: name: fold_commuted_xor_and
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: %y:_(s32) = COPY $w1
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(s32) = G_XOR %x, [[C]]
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; CHECK-NEXT: %xor:_(s32) = G_AND [[XOR]], %y
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; CHECK-NEXT: $w0 = COPY %xor(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%y:_(s32) = COPY $w1
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%and:_(s32) = G_AND %y, %x
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%xor:_(s32) = G_XOR %y, %and
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$w0 = COPY %xor(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: dont_fold_different_regs
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1, $w2
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; The G_AND does not share any registers with the G_XOR
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; CHECK-LABEL: name: dont_fold_different_regs
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; CHECK: liveins: $w0, $w1, $w2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: %y:_(s32) = COPY $w1
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; CHECK-NEXT: %z:_(s32) = COPY $w2
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; CHECK-NEXT: %and:_(s32) = G_AND %x, %z
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; CHECK-NEXT: %xor:_(s32) = G_XOR %and, %y
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; CHECK-NEXT: $w0 = COPY %xor(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%y:_(s32) = COPY $w1
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%z:_(s32) = COPY $w2
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%and:_(s32) = G_AND %x, %z
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%xor:_(s32) = G_XOR %and, %y
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$w0 = COPY %xor(s32)
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RET_ReallyLR implicit $w0
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...
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---
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name: dont_fold_more_than_one_use
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $w0, $w1, $w2
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; Don't fold when the G_AND is used outside the G_XOR.
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; CHECK-LABEL: name: dont_fold_more_than_one_use
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; CHECK: liveins: $w0, $w1, $w2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: %x:_(s32) = COPY $w0
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; CHECK-NEXT: %y:_(s32) = COPY $w1
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; CHECK-NEXT: %z:_(s32) = COPY $w2
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; CHECK-NEXT: %and:_(s32) = G_AND %x, %z
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; CHECK-NEXT: %xor:_(s32) = G_XOR %and, %y
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; CHECK-NEXT: %add:_(s32) = G_ADD %and, %xor
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; CHECK-NEXT: $w0 = COPY %add(s32)
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; CHECK-NEXT: RET_ReallyLR implicit $w0
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%x:_(s32) = COPY $w0
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%y:_(s32) = COPY $w1
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%z:_(s32) = COPY $w2
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%and:_(s32) = G_AND %x, %z
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%xor:_(s32) = G_XOR %and, %y
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%add:_(s32) = G_ADD %and, %xor
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$w0 = COPY %add(s32)
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RET_ReallyLR implicit $w0
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