derek.holloway
7502bf64a4
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316 lines
10 KiB
YAML
316 lines
10 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -o - -mtriple=aarch64-unknown-unknown -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs %s | FileCheck %s
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# Truncs with a single use get folded.
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# and(trunc(x), trunc(y)) -> trunc(and(x, y))
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---
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name: and_trunc
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: and_trunc
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[COPY1]]
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; CHECK-NEXT: $w0 = COPY [[AND]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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%4:_(s16) = G_AND %2, %3
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%5:_(s32) = G_ANYEXT %4
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$w0 = COPY %5
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...
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---
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name: and_trunc_vector
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body: |
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bb.0:
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liveins: $q0, $q1
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; CHECK-LABEL: name: and_trunc_vector
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; CHECK: liveins: $q0, $q1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $q0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<4 x s32>) = COPY $q1
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(<4 x s32>) = G_AND [[COPY]], [[COPY1]]
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; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(<4 x s16>) = G_TRUNC [[AND]](<4 x s32>)
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; CHECK-NEXT: $x0 = COPY [[TRUNC]](<4 x s16>)
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%0:_(<4 x s32>) = COPY $q0
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%1:_(<4 x s32>) = COPY $q1
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%2:_(<4 x s16>) = G_TRUNC %0
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%3:_(<4 x s16>) = G_TRUNC %1
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%4:_(<4 x s16>) = G_AND %2, %3
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$x0 = COPY %4
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...
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# or(trunc(x), trunc(y)) -> trunc(or(x, y))
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---
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name: or_trunc
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: or_trunc
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[OR:%[0-9]+]]:_(s32) = G_OR [[COPY]], [[COPY1]]
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; CHECK-NEXT: $w0 = COPY [[OR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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%4:_(s16) = G_OR %2, %3
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%5:_(s32) = G_ANYEXT %4
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$w0 = COPY %5
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...
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---
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name: or_trunc_vector
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body: |
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bb.0:
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liveins: $q0, $q1
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; CHECK-LABEL: name: or_trunc_vector
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; CHECK: liveins: $q0, $q1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $q0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<4 x s32>) = COPY $q1
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; CHECK-NEXT: [[OR:%[0-9]+]]:_(<4 x s32>) = G_OR [[COPY]], [[COPY1]]
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; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(<4 x s16>) = G_TRUNC [[OR]](<4 x s32>)
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; CHECK-NEXT: $x0 = COPY [[TRUNC]](<4 x s16>)
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%0:_(<4 x s32>) = COPY $q0
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%1:_(<4 x s32>) = COPY $q1
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%2:_(<4 x s16>) = G_TRUNC %0
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%3:_(<4 x s16>) = G_TRUNC %1
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%4:_(<4 x s16>) = G_OR %2, %3
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$x0 = COPY %4
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...
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# xor(trunc(x), trunc(y)) -> trunc(xor(x, y))
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---
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name: xor_trunc
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: xor_trunc
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(s32) = G_XOR [[COPY]], [[COPY1]]
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; CHECK-NEXT: $w0 = COPY [[XOR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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%4:_(s16) = G_XOR %2, %3
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%5:_(s32) = G_ANYEXT %4
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$w0 = COPY %5
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...
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---
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name: xor_trunc_vector
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body: |
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bb.0:
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liveins: $q0, $q1
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; CHECK-LABEL: name: xor_trunc_vector
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; CHECK: liveins: $q0, $q1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $q0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<4 x s32>) = COPY $q1
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(<4 x s32>) = G_XOR [[COPY]], [[COPY1]]
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; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(<4 x s16>) = G_TRUNC [[XOR]](<4 x s32>)
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; CHECK-NEXT: $x0 = COPY [[TRUNC]](<4 x s16>)
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%0:_(<4 x s32>) = COPY $q0
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%1:_(<4 x s32>) = COPY $q1
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%2:_(<4 x s16>) = G_TRUNC %0
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%3:_(<4 x s16>) = G_TRUNC %1
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%4:_(<4 x s16>) = G_XOR %2, %3
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$x0 = COPY %4
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...
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# Truncs with multiple uses do not get folded.
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---
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name: or_trunc_multiuse_1
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body: |
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bb.0:
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liveins: $w0, $w1, $x2
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; CHECK-LABEL: name: or_trunc_multiuse_1
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; CHECK: liveins: $w0, $w1, $x2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(p0) = COPY $x2
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; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
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; CHECK-NEXT: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
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; CHECK-NEXT: G_STORE [[TRUNC]](s16), [[COPY2]](p0) :: (store (s16))
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; CHECK-NEXT: [[OR:%[0-9]+]]:_(s16) = G_OR [[TRUNC]], [[TRUNC1]]
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; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[OR]](s16)
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; CHECK-NEXT: $w0 = COPY [[ANYEXT]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%5:_(p0) = COPY $x2
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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G_STORE %2, %5 :: (store (s16))
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%4:_(s16) = G_OR %2, %3
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%6:_(s32) = G_ANYEXT %4
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$w0 = COPY %6
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...
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---
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name: and_trunc_multiuse_2
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body: |
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bb.0:
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liveins: $w0, $w1, $x2
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; CHECK-LABEL: name: and_trunc_multiuse_2
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; CHECK: liveins: $w0, $w1, $x2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(p0) = COPY $x2
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; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
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; CHECK-NEXT: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[COPY1]](s32)
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; CHECK-NEXT: G_STORE [[TRUNC]](s16), [[COPY2]](p0) :: (store (s16))
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s16) = G_AND [[TRUNC]], [[TRUNC1]]
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; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[AND]](s16)
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; CHECK-NEXT: $w0 = COPY [[ANYEXT]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%5:_(p0) = COPY $x2
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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G_STORE %2, %5 :: (store (s16))
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%4:_(s16) = G_AND %2, %3
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%6:_(s32) = G_ANYEXT %4
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$w0 = COPY %6
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...
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---
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name: xor_trunc_vector_multiuse
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body: |
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bb.0:
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liveins: $w0, $w1, $x2
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; CHECK-LABEL: name: xor_trunc_vector_multiuse
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; CHECK: liveins: $w0, $w1, $x2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $q0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<4 x s32>) = COPY $q1
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(p0) = COPY $x2
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; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(<4 x s16>) = G_TRUNC [[COPY]](<4 x s32>)
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; CHECK-NEXT: [[TRUNC1:%[0-9]+]]:_(<4 x s16>) = G_TRUNC [[COPY1]](<4 x s32>)
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; CHECK-NEXT: G_STORE [[TRUNC]](<4 x s16>), [[COPY2]](p0) :: (store (<4 x s16>))
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(<4 x s16>) = G_XOR [[TRUNC]], [[TRUNC1]]
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; CHECK-NEXT: $x0 = COPY [[XOR]](<4 x s16>)
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%0:_(<4 x s32>) = COPY $q0
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%1:_(<4 x s32>) = COPY $q1
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%5:_(p0) = COPY $x2
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%2:_(<4 x s16>) = G_TRUNC %0
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%3:_(<4 x s16>) = G_TRUNC %1
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G_STORE %2, %5 :: (store (<4 x s16>))
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%4:_(<4 x s16>) = G_XOR %2, %3
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$x0 = COPY %4
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...
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# Freezes should get pushed through truncs.
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# This optimizes the pattern where `select(cond, T, 0)` gets converted to
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# `and(cond, freeze(T))`.
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# and(freeze(trunc(x)), trunc(y)) -> trunc(and(freeze(x), y))
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---
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name: and_trunc_freeze
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: and_trunc_freeze
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[FREEZE:%[0-9]+]]:_(s32) = G_FREEZE [[COPY]]
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[FREEZE]], [[COPY1]]
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; CHECK-NEXT: $w0 = COPY [[AND]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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%6:_(s16) = G_FREEZE %2
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%4:_(s16) = G_AND %6, %3
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%5:_(s32) = G_ANYEXT %4
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$w0 = COPY %5
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...
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# and(freeze(trunc(x)), freeze(trunc(y))) -> trunc(and(freeze(x), freeze(y)))
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---
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name: and_trunc_freeze_both
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: and_trunc_freeze_both
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[FREEZE:%[0-9]+]]:_(s32) = G_FREEZE [[COPY]]
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; CHECK-NEXT: [[FREEZE1:%[0-9]+]]:_(s32) = G_FREEZE [[COPY1]]
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[FREEZE]], [[FREEZE1]]
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; CHECK-NEXT: $w0 = COPY [[AND]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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%6:_(s16) = G_FREEZE %2
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%7:_(s16) = G_FREEZE %3
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%4:_(s16) = G_AND %6, %7
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%5:_(s32) = G_ANYEXT %4
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$w0 = COPY %5
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...
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# The freeze fold is less important for G_OR and G_XOR, however it can still
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# trigger.
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---
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name: or_trunc_freeze
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: or_trunc_freeze
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[FREEZE:%[0-9]+]]:_(s32) = G_FREEZE [[COPY]]
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; CHECK-NEXT: [[OR:%[0-9]+]]:_(s32) = G_OR [[FREEZE]], [[COPY1]]
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; CHECK-NEXT: $w0 = COPY [[OR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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%6:_(s16) = G_FREEZE %2
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%4:_(s16) = G_OR %6, %3
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%5:_(s32) = G_ANYEXT %4
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$w0 = COPY %5
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...
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---
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name: xor_trunc_freeze_both
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body: |
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bb.0:
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liveins: $w0, $w1
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; CHECK-LABEL: name: xor_trunc_freeze_both
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; CHECK: liveins: $w0, $w1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
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; CHECK-NEXT: [[FREEZE:%[0-9]+]]:_(s32) = G_FREEZE [[COPY]]
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; CHECK-NEXT: [[FREEZE1:%[0-9]+]]:_(s32) = G_FREEZE [[COPY1]]
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; CHECK-NEXT: [[XOR:%[0-9]+]]:_(s32) = G_XOR [[FREEZE]], [[FREEZE1]]
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; CHECK-NEXT: $w0 = COPY [[XOR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = COPY $w1
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%2:_(s16) = G_TRUNC %0
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%3:_(s16) = G_TRUNC %1
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%6:_(s16) = G_FREEZE %2
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%7:_(s16) = G_FREEZE %3
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%4:_(s16) = G_XOR %6, %7
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%5:_(s32) = G_ANYEXT %4
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$w0 = COPY %5
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...
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