# 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: uitofp_to_zero
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: uitofp_to_zero
; CHECK: [[C:%[0-9]+]]:_(s32) = G_FCONSTANT float 0.000000e+00
; CHECK: $s0 = COPY [[C]](s32)
; CHECK: RET_ReallyLR implicit $s0
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s32) = G_UITOFP %0(s32)
$s0 = COPY %1(s32)
RET_ReallyLR implicit $s0
...
---
name: sitofp_to_zero
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: sitofp_to_zero
; CHECK: [[C:%[0-9]+]]:_(s32) = G_FCONSTANT float 0.000000e+00
; CHECK-NEXT: $s0 = COPY [[C]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $s0
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s32) = G_SITOFP %0(s32)
$s0 = COPY %1(s32)
RET_ReallyLR implicit $s0
...
---
name: and_to_zero
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: and_to_zero
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: $w0 = COPY [[C]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_IMPLICIT_DEF
%2:_(s32) = G_AND %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
---
name: mul_to_zero
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: mul_to_zero
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: $w0 = COPY [[C]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_IMPLICIT_DEF
%2:_(s32) = G_MUL %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
---
name: or_to_negative_one
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: or_to_negative_one
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1
; CHECK-NEXT: $w0 = COPY [[C]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_IMPLICIT_DEF
%2:_(s32) = G_OR %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
---
name: xor_to_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: xor_to_undef
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $w0 = COPY [[DEF]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_IMPLICIT_DEF
%2:_(s32) = G_XOR %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
---
name: add_to_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: add_to_undef
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $w0 = COPY [[DEF]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_IMPLICIT_DEF
%2:_(s32) = G_ADD %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
---
name: sub_to_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: sub_to_undef
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $w0 = COPY [[DEF]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_CONSTANT i32 10
%1:_(s32) = G_IMPLICIT_DEF
%2:_(s32) = G_SUB %0, %1
$w0 = COPY %2(s32)
RET_ReallyLR implicit $w0
...
---
name: fptoui_to_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: fptoui_to_undef
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $w0 = COPY [[DEF]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s32) = G_FPTOUI %0(s32)
$w0 = COPY %1(s32)
RET_ReallyLR implicit $w0
...
---
name: fptosi_to_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: fptosi_to_undef
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $w0 = COPY [[DEF]](s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s32) = G_FPTOSI %0(s32)
$w0 = COPY %1(s32)
RET_ReallyLR implicit $w0
...
---
name: shufflevector_undef_ops_to_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: shufflevector_undef_ops_to_undef
; CHECK: [[DEF:%[0-9]+]]:_(<2 x s32>) = G_IMPLICIT_DEF
; CHECK-NEXT: $d0 = COPY [[DEF]](<2 x s32>)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%1:_(<2 x s32>) = G_IMPLICIT_DEF
%2:_(<2 x s32>) = G_IMPLICIT_DEF
%0:_(<2 x s32>) = G_SHUFFLE_VECTOR %1(<2 x s32>), %2(<2 x s32>), shufflemask(0, 1)
$d0 = COPY %0(<2 x s32>)
RET_ReallyLR implicit $d0
...
---
name: shufflevector_undef_mask_to_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0, $d1
; CHECK-LABEL: name: shufflevector_undef_mask_to_undef
; CHECK: liveins: $d0, $d1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[DEF:%[0-9]+]]:_(<2 x s32>) = G_IMPLICIT_DEF
; CHECK-NEXT: $d0 = COPY [[DEF]](<2 x s32>)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%0:_(<2 x s32>) = COPY $d0
%1:_(<2 x s32>) = COPY $d1
%2:_(<2 x s32>) = G_SHUFFLE_VECTOR %0(<2 x s32>), %1, shufflemask(undef, undef)
$d0 = COPY %2(<2 x s32>)
RET_ReallyLR implicit $d0
...
---
name: shufflevector_not_all_ops_undef
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0
; Show that we don't do the combine when one of the vectors is not a
; G_IMPLICIT_DEF.
;
; CHECK-LABEL: name: shufflevector_not_all_ops_undef
; CHECK: liveins: $d0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[DEF:%[0-9]+]]:_(<2 x s32>) = G_IMPLICIT_DEF
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $d0
; CHECK-NEXT: [[SHUF:%[0-9]+]]:_(<2 x s32>) = G_SHUFFLE_VECTOR [[DEF]](<2 x s32>), [[COPY]], shufflemask(0, 1)
; CHECK-NEXT: $d0 = COPY [[SHUF]](<2 x s32>)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%1:_(<2 x s32>) = G_IMPLICIT_DEF
%2:_(<2 x s32>) = COPY $d0
%0:_(<2 x s32>) = G_SHUFFLE_VECTOR %1(<2 x s32>), %2(<2 x s32>), shufflemask(0, 1)
$d0 = COPY %0(<2 x s32>)
RET_ReallyLR implicit $d0
...
---
name: shl_undef_rhs
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: shl_undef_rhs
; CHECK: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
; CHECK-NEXT: $x0 = COPY [[DEF]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%0:_(s64) = G_CONSTANT i64 10
%1:_(s64) = G_IMPLICIT_DEF
%2:_(s64) = G_SHL %0, %1
$x0 = COPY %2(s64)
RET_ReallyLR implicit $x0
...
---
name: lshr_undef_rhs
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: lshr_undef_rhs
; CHECK: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
; CHECK-NEXT: $x0 = COPY [[DEF]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%0:_(s64) = G_CONSTANT i64 10
%1:_(s64) = G_IMPLICIT_DEF
%2:_(s64) = G_LSHR %0, %1
$x0 = COPY %2(s64)
RET_ReallyLR implicit $x0
...
---
name: ashr_undef_rhs
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: ashr_undef_rhs
; CHECK: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
; CHECK-NEXT: $x0 = COPY [[DEF]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%0:_(s64) = G_CONSTANT i64 10
%1:_(s64) = G_IMPLICIT_DEF
%2:_(s64) = G_ASHR %0, %1
$x0 = COPY %2(s64)
RET_ReallyLR implicit $x0
...
---
name: lshr_undef_lhs
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; Optimize these to zero?
; CHECK-LABEL: name: lshr_undef_lhs
; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 10
; CHECK-NEXT: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s64) = G_LSHR [[DEF]], [[C]](s64)
; CHECK-NEXT: $x0 = COPY [[LSHR]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%0:_(s64) = G_CONSTANT i64 10
%1:_(s64) = G_IMPLICIT_DEF
%2:_(s64) = G_LSHR %1, %0
$x0 = COPY %2(s64)
RET_ReallyLR implicit $x0
...
---
name: ashr_undef_lhs
alignment: 4
tracksRegLiveness: true
body: |
bb.0:
; Optimize these to zero?
; CHECK-LABEL: name: ashr_undef_lhs
; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 10
; CHECK-NEXT: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
; CHECK-NEXT: [[ASHR:%[0-9]+]]:_(s64) = G_ASHR [[DEF]], [[C]](s64)
; CHECK-NEXT: $x0 = COPY [[ASHR]](s64)
; CHECK-NEXT: RET_ReallyLR implicit $x0
%0:_(s64) = G_CONSTANT i64 10
%1:_(s64) = G_IMPLICIT_DEF
%2:_(s64) = G_ASHR %1, %0
$x0 = COPY %2(s64)
RET_ReallyLR implicit $x0
...