derek.holloway
7502bf64a4
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208 lines
7.1 KiB
YAML
208 lines
7.1 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
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# Check that we can fold a G_ASHR/G_LSHR fed by a G_AND into a G_SBFX/G_UBFX.
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---
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name: mask_extract_unsigned_32
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: mask_extract_unsigned_32
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
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; CHECK-NEXT: [[UBFX:%[0-9]+]]:_(s32) = G_UBFX [[COPY]], [[C]](s32), [[C]]
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; CHECK-NEXT: $w0 = COPY [[UBFX]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 12
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%2:_(s32) = G_CONSTANT i32 2
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_LSHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: mask_extract_unsigned_64
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: mask_extract_unsigned_64
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; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 56
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
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; CHECK-NEXT: [[UBFX:%[0-9]+]]:_(s64) = G_UBFX [[COPY]], [[C]](s64), [[C1]]
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; CHECK-NEXT: $x0 = COPY [[UBFX]](s64)
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%0:_(s64) = COPY $x0
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%1:_(s64) = G_CONSTANT i64 1080863910568919040
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%2:_(s64) = G_CONSTANT i64 56
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%3:_(s64) = G_AND %0, %1
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%4:_(s64) = G_LSHR %3, %2
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$x0 = COPY %4(s64)
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...
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---
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name: no_mask_extract_unsigned_128
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: no_mask_extract_unsigned_128
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; CHECK: [[COPY:%[0-9]+]]:_(s128) = COPY $q0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s128) = G_CONSTANT i128 1080863910568919040
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s128) = G_CONSTANT i128 56
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s128) = G_AND [[COPY]], [[C]]
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; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s128) = G_LSHR [[AND]], [[C1]](s128)
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; CHECK-NEXT: $q0 = COPY [[LSHR]](s128)
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%0:_(s128) = COPY $q0
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%1:_(s128) = G_CONSTANT i128 1080863910568919040
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%2:_(s128) = G_CONSTANT i128 56
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%3:_(s128) = G_AND %0, %1
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%4:_(s128) = G_LSHR %3, %2
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$q0 = COPY %4(s128)
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...
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---
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name: mask_extract_asr
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: mask_extract_asr
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 29
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
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; CHECK-NEXT: [[UBFX:%[0-9]+]]:_(s32) = G_UBFX [[COPY]], [[C]](s32), [[C1]]
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; CHECK-NEXT: $w0 = COPY [[UBFX]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 1610612736
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%2:_(s32) = G_CONSTANT i32 29
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_ASHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: no_mask_extract_asr
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: no_mask_extract_asr
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1073741824
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 30
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[C]]
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; CHECK-NEXT: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[AND]], [[C1]](s32)
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; CHECK-NEXT: $w0 = COPY [[ASHR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 3221225472
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%2:_(s32) = G_CONSTANT i32 30
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_ASHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: mask_extract_signed_nonneg
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: mask_extract_signed_nonneg
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 29
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
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; CHECK-NEXT: [[UBFX:%[0-9]+]]:_(s32) = G_UBFX [[COPY]], [[C]](s32), [[C1]]
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; CHECK-NEXT: $w0 = COPY [[UBFX]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 2147483647
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%2:_(s32) = G_CONSTANT i32 29
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_ASHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: no_mask_extract_large_shift
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: no_mask_extract_large_shift
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 33
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[C]]
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; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND]], [[C1]](s32)
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; CHECK-NEXT: $w0 = COPY [[LSHR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 12
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%2:_(s32) = G_CONSTANT i32 33
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_LSHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: no_mask_extract_negative_shift
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: no_mask_extract_negative_shift
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[C]]
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; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND]], [[C1]](s32)
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; CHECK-NEXT: $w0 = COPY [[LSHR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 12
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%2:_(s32) = G_CONSTANT i32 -1
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_LSHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: no_mask_extract_disjoint
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: no_mask_extract_disjoint
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 26
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[C]]
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; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND]], [[C1]](s32)
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; CHECK-NEXT: $w0 = COPY [[LSHR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 26
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%2:_(s32) = G_CONSTANT i32 1
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_LSHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: no_mask_extract_extra_bits
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legalized: true
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body: |
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bb.0.entry:
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; CHECK-LABEL: name: no_mask_extract_extra_bits
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; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
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; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 25
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; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
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; CHECK-NEXT: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[C]]
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; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[AND]], [[C1]](s32)
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; CHECK-NEXT: $w0 = COPY [[LSHR]](s32)
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%0:_(s32) = COPY $w0
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%1:_(s32) = G_CONSTANT i32 25
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%2:_(s32) = G_CONSTANT i32 2
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%3:_(s32) = G_AND %0, %1
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%4:_(s32) = G_LSHR %3, %2
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$w0 = COPY %4(s32)
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...
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---
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name: zero_from_large_shift
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legalized: true
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body: |
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bb.1.entry:
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; CHECK-LABEL: name: zero_from_large_shift
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; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
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; CHECK-NEXT: $x0 = COPY [[C]](s64)
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%2:_(s32) = COPY $w0
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%1:_(s8) = G_TRUNC %2:_(s32)
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%3:_(s8) = G_ASSERT_ZEXT %1:_, 1
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%5:_(s64) = G_CONSTANT i64 1
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%7:_(s64) = G_ANYEXT %3:_(s8)
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%4:_(s64) = G_AND %7:_, %5:_
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%6:_(s64) = G_LSHR %4:_, %5:_(s64)
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$x0 = COPY %6:_(s64)
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...
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