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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-ashr-shl-to-sext-inreg.mir
derek.holloway 7502bf64a4
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
---
name: ashr_shl_to_sext_inreg
alignment: 4
tracksRegLiveness: true
liveins:
- { reg: '$w0' }
body: |
bb.1:
liveins: $w0
; CHECK-LABEL: name: ashr_shl_to_sext_inreg
; CHECK: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
; CHECK-NEXT: [[SEXT_INREG:%[0-9]+]]:_(s16) = G_SEXT_INREG [[TRUNC]], 8
; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SEXT_INREG]](s16)
; CHECK-NEXT: $w0 = COPY [[ANYEXT]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%1:_(s32) = COPY $w0
%0:_(s16) = G_TRUNC %1(s32)
%2:_(s16) = G_CONSTANT i16 8
%3:_(s16) = G_SHL %0, %2(s16)
%4:_(s16) = exact G_ASHR %3, %2(s16)
%5:_(s32) = G_ANYEXT %4(s16)
$w0 = COPY %5(s32)
RET_ReallyLR implicit $w0
...
---
name: different_shift_amts
alignment: 4
tracksRegLiveness: true
liveins:
- { reg: '$w0' }
body: |
bb.1:
liveins: $w0
; CHECK-LABEL: name: different_shift_amts
; CHECK: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
; CHECK-NEXT: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 12
; CHECK-NEXT: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; CHECK-NEXT: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[TRUNC]], [[C]](s16)
; CHECK-NEXT: [[ASHR:%[0-9]+]]:_(s16) = exact G_ASHR [[SHL]], [[C1]](s16)
; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ASHR]](s16)
; CHECK-NEXT: $w0 = COPY [[ANYEXT]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%1:_(s32) = COPY $w0
%0:_(s16) = G_TRUNC %1(s32)
%2:_(s16) = G_CONSTANT i16 12
%4:_(s16) = G_CONSTANT i16 8
%3:_(s16) = G_SHL %0, %2(s16)
%5:_(s16) = exact G_ASHR %3, %4(s16)
%6:_(s32) = G_ANYEXT %5(s16)
$w0 = COPY %6(s32)
RET_ReallyLR implicit $w0
...
---
name: ashr_shl_to_sext_inreg_vector
alignment: 4
tracksRegLiveness: true
liveins:
- { reg: '$d0' }
body: |
bb.1:
liveins: $d0
; CHECK-LABEL: name: ashr_shl_to_sext_inreg_vector
; CHECK: liveins: $d0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $d0
; CHECK-NEXT: [[SEXT_INREG:%[0-9]+]]:_(<4 x s16>) = G_SEXT_INREG [[COPY]], 8
; CHECK-NEXT: $d0 = COPY [[SEXT_INREG]](<4 x s16>)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%0:_(<4 x s16>) = COPY $d0
%2:_(s16) = G_CONSTANT i16 8
%1:_(<4 x s16>) = G_BUILD_VECTOR %2(s16), %2(s16), %2(s16), %2(s16)
%3:_(<4 x s16>) = G_SHL %0, %1(<4 x s16>)
%4:_(<4 x s16>) = exact G_ASHR %3, %1(<4 x s16>)
$d0 = COPY %4(<4 x s16>)
RET_ReallyLR implicit $d0
...