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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-lowering-build-vector-to-dup.mir
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-lowering -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=LOWER
# RUN: llc -mtriple aarch64 -O2 -start-before=aarch64-postlegalizer-lowering -stop-after=instruction-select -global-isel -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=SELECT
...
---
name: same_reg
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0
; LOWER-LABEL: name: same_reg
; LOWER: liveins: $d0
; LOWER-NEXT: {{ $}}
; LOWER-NEXT: [[DEF:%[0-9]+]]:_(<8 x i8>) = G_IMPLICIT_DEF
; LOWER-NEXT: %build_vector:_(<8 x i8>) = COPY [[DEF]](<8 x i8>)
; LOWER-NEXT: $d0 = COPY %build_vector(<8 x i8>)
; LOWER-NEXT: RET_ReallyLR implicit $d0
;
; SELECT-LABEL: name: same_reg
; SELECT: liveins: $d0
; SELECT-NEXT: {{ $}}
; SELECT-NEXT: [[DEF:%[0-9]+]]:fpr64 = IMPLICIT_DEF
; SELECT-NEXT: $d0 = COPY [[DEF]]
; SELECT-NEXT: RET_ReallyLR implicit $d0
%r:_(i8) = G_IMPLICIT_DEF
%build_vector:_(<8 x i8>) = G_BUILD_VECTOR %r, %r, %r, %r, %r, %r, %r, %r
$d0 = COPY %build_vector(<8 x i8>)
RET_ReallyLR implicit $d0
...
---
name: dont_combine_different_reg
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0, $w0, $w1
; LOWER-LABEL: name: dont_combine_different_reg
; LOWER: liveins: $d0, $w0, $w1
; LOWER-NEXT: {{ $}}
; LOWER-NEXT: %r:_(i32) = COPY $w0
; LOWER-NEXT: %q:_(i32) = COPY $w1
; LOWER-NEXT: [[DEF:%[0-9]+]]:_(<2 x i32>) = G_IMPLICIT_DEF
; LOWER-NEXT: [[C:%[0-9]+]]:_(i64) = G_CONSTANT i64 0
; LOWER-NEXT: [[IVEC:%[0-9]+]]:_(<2 x i32>) = G_INSERT_VECTOR_ELT [[DEF]], %r(i32), [[C]](i64)
; LOWER-NEXT: [[C1:%[0-9]+]]:_(i64) = G_CONSTANT i64 1
; LOWER-NEXT: [[IVEC1:%[0-9]+]]:_(<2 x i32>) = G_INSERT_VECTOR_ELT [[IVEC]], %q(i32), [[C1]](i64)
; LOWER-NEXT: %build_vector:_(<2 x i32>) = COPY [[IVEC1]](<2 x i32>)
; LOWER-NEXT: $d0 = COPY %build_vector(<2 x i32>)
; LOWER-NEXT: RET_ReallyLR implicit $d0
;
; SELECT-LABEL: name: dont_combine_different_reg
; SELECT: liveins: $d0, $w0, $w1
; SELECT-NEXT: {{ $}}
; SELECT-NEXT: %r:gpr32 = COPY $w0
; SELECT-NEXT: %q:gpr32 = COPY $w1
; SELECT-NEXT: [[DEF:%[0-9]+]]:fpr64 = IMPLICIT_DEF
; SELECT-NEXT: [[INSERT_SUBREG:%[0-9]+]]:fpr64 = INSERT_SUBREG [[DEF]], %r, %subreg.ssub
; SELECT-NEXT: [[DEF1:%[0-9]+]]:fpr128 = IMPLICIT_DEF
; SELECT-NEXT: [[INSERT_SUBREG1:%[0-9]+]]:fpr128 = INSERT_SUBREG [[DEF1]], [[INSERT_SUBREG]], %subreg.dsub
; SELECT-NEXT: [[INSvi32gpr:%[0-9]+]]:fpr128 = INSvi32gpr [[INSERT_SUBREG1]], 1, %q
; SELECT-NEXT: [[COPY:%[0-9]+]]:fpr64 = COPY [[INSvi32gpr]].dsub
; SELECT-NEXT: $d0 = COPY [[COPY]]
; SELECT-NEXT: RET_ReallyLR implicit $d0
%r:_(i32) = COPY $w0
%q:_(i32) = COPY $w1
%build_vector:_(<2 x i32>) = G_BUILD_VECTOR %r, %q
$d0 = COPY %build_vector(<2 x i32>)
RET_ReallyLR implicit $d0
...
---
name: dont_combine_zero
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0
; LOWER-LABEL: name: dont_combine_zero
; LOWER: liveins: $d0
; LOWER-NEXT: {{ $}}
; LOWER-NEXT: %r:_(i8) = G_CONSTANT i8 0
; LOWER-NEXT: %build_vector:_(<8 x i8>) = G_BUILD_VECTOR %r(i8), %r(i8), %r(i8), %r(i8), %r(i8), %r(i8), %r(i8), %r(i8)
; LOWER-NEXT: $d0 = COPY %build_vector(<8 x i8>)
; LOWER-NEXT: RET_ReallyLR implicit $d0
;
; SELECT-LABEL: name: dont_combine_zero
; SELECT: liveins: $d0
; SELECT-NEXT: {{ $}}
; SELECT-NEXT: [[MOVIv2d_ns:%[0-9]+]]:fpr128 = MOVIv2d_ns 0
; SELECT-NEXT: %build_vector:fpr64 = COPY [[MOVIv2d_ns]].dsub
; SELECT-NEXT: $d0 = COPY %build_vector
; SELECT-NEXT: RET_ReallyLR implicit $d0
%r:_(i8) = G_CONSTANT i8 0
%build_vector:_(<8 x i8>) = G_BUILD_VECTOR %r, %r, %r, %r, %r, %r, %r, %r
$d0 = COPY %build_vector(<8 x i8>)
RET_ReallyLR implicit $d0
...
---
name: dont_combine_all_ones
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0
; LOWER-LABEL: name: dont_combine_all_ones
; LOWER: liveins: $d0
; LOWER-NEXT: {{ $}}
; LOWER-NEXT: %r:_(i8) = G_CONSTANT i8 -1
; LOWER-NEXT: %build_vector:_(<8 x i8>) = G_BUILD_VECTOR %r(i8), %r(i8), %r(i8), %r(i8), %r(i8), %r(i8), %r(i8), %r(i8)
; LOWER-NEXT: $d0 = COPY %build_vector(<8 x i8>)
; LOWER-NEXT: RET_ReallyLR implicit $d0
;
; SELECT-LABEL: name: dont_combine_all_ones
; SELECT: liveins: $d0
; SELECT-NEXT: {{ $}}
; SELECT-NEXT: %build_vector:fpr64 = MOVID 255
; SELECT-NEXT: $d0 = COPY %build_vector
; SELECT-NEXT: RET_ReallyLR implicit $d0
%r:_(i8) = G_CONSTANT i8 -1
%build_vector:_(<8 x i8>) = G_BUILD_VECTOR %r, %r, %r, %r, %r, %r, %r, %r
$d0 = COPY %build_vector(<8 x i8>)
RET_ReallyLR implicit $d0
...
---
name: all_zeros_pat_example
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0
; LOWER-LABEL: name: all_zeros_pat_example
; LOWER: liveins: $d0
; LOWER-NEXT: {{ $}}
; LOWER-NEXT: %v:_(<2 x i32>) = COPY $d0
; LOWER-NEXT: %cst:_(i32) = G_CONSTANT i32 0
; LOWER-NEXT: %build_vector:_(<2 x i32>) = G_BUILD_VECTOR %cst(i32), %cst(i32)
; LOWER-NEXT: %sub:_(<2 x i32>) = G_SUB %build_vector, %v
; LOWER-NEXT: $d0 = COPY %sub(<2 x i32>)
; LOWER-NEXT: RET_ReallyLR implicit $d0
;
; SELECT-LABEL: name: all_zeros_pat_example
; SELECT: liveins: $d0
; SELECT-NEXT: {{ $}}
; SELECT-NEXT: %v:fpr64 = COPY $d0
; SELECT-NEXT: %sub:fpr64 = NEGv2i32 %v
; SELECT-NEXT: $d0 = COPY %sub
; SELECT-NEXT: RET_ReallyLR implicit $d0
%v:_(<2 x i32>) = COPY $d0
%cst:_(i32) = G_CONSTANT i32 0
%build_vector:_(<2 x i32>) = G_BUILD_VECTOR %cst, %cst
%sub:_(<2 x i32>) = G_SUB %build_vector, %v
$d0 = COPY %sub(<2 x i32>)
RET_ReallyLR implicit $d0
...
---
name: all_ones_pat_example
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0, $d1
; LOWER-LABEL: name: all_ones_pat_example
; LOWER: liveins: $d0, $d1
; LOWER-NEXT: {{ $}}
; LOWER-NEXT: %v0:_(<2 x i32>) = COPY $d0
; LOWER-NEXT: %v1:_(<2 x i32>) = COPY $d1
; LOWER-NEXT: %cst:_(i32) = G_CONSTANT i32 -1
; LOWER-NEXT: %build_vector:_(<2 x i32>) = G_BUILD_VECTOR %cst(i32), %cst(i32)
; LOWER-NEXT: %xor:_(<2 x i32>) = G_XOR %v0, %build_vector
; LOWER-NEXT: %and:_(<2 x i32>) = G_AND %v1, %xor
; LOWER-NEXT: $d0 = COPY %and(<2 x i32>)
; LOWER-NEXT: RET_ReallyLR implicit $d0
;
; SELECT-LABEL: name: all_ones_pat_example
; SELECT: liveins: $d0, $d1
; SELECT-NEXT: {{ $}}
; SELECT-NEXT: %v0:fpr64 = COPY $d0
; SELECT-NEXT: %v1:fpr64 = COPY $d1
; SELECT-NEXT: %and:fpr64 = BICv8i8 %v1, %v0
; SELECT-NEXT: $d0 = COPY %and
; SELECT-NEXT: RET_ReallyLR implicit $d0
%v0:_(<2 x i32>) = COPY $d0
%v1:_(<2 x i32>) = COPY $d1
%cst:_(i32) = G_CONSTANT i32 -1
%build_vector:_(<2 x i32>) = G_BUILD_VECTOR %cst, %cst
%xor:_(<2 x i32>) = G_XOR %v0, %build_vector
%and:_(<2 x i32>) = G_AND %v1, %xor
$d0 = COPY %and(<2 x i32>)
RET_ReallyLR implicit $d0