test/CodeGen/AArch64/GlobalISel/legalize-reduce-add.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=aarch64 -run-pass=legalizer -global-isel-abort=1 %s -o - | FileCheck %s
---
name:            add_v16s8
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $x0
    ; CHECK-LABEL: name: add_v16s8
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
    ; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(<16 x s8>) = G_LOAD [[COPY]](p0) :: (load (<16 x s8>))
    ; CHECK-NEXT: [[VECREDUCE_ADD:%[0-9]+]]:_(s8) = G_VECREDUCE_ADD [[LOAD]](<16 x s8>)
    ; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[VECREDUCE_ADD]](s8)
    ; CHECK-NEXT: $w0 = COPY [[ANYEXT]](s32)
    ; CHECK-NEXT: RET_ReallyLR implicit $w0
    %0:_(p0) = COPY $x0
    %1:_(<16 x s8>) = G_LOAD %0(p0) :: (load (<16 x s8>))
    %2:_(s8) = G_VECREDUCE_ADD %1(<16 x s8>)
    %3:_(s32) = G_ANYEXT %2(s8)
    $w0 = COPY %3(s32)
    RET_ReallyLR implicit $w0

...
---
name:            add_v8s16
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $x0
    ; CHECK-LABEL: name: add_v8s16
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
    ; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(<8 x s16>) = G_LOAD [[COPY]](p0) :: (load (<8 x s16>))
    ; CHECK-NEXT: [[VECREDUCE_ADD:%[0-9]+]]:_(s16) = G_VECREDUCE_ADD [[LOAD]](<8 x s16>)
    ; CHECK-NEXT: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[VECREDUCE_ADD]](s16)
    ; CHECK-NEXT: $w0 = COPY [[ANYEXT]](s32)
    ; CHECK-NEXT: RET_ReallyLR implicit $w0
    %0:_(p0) = COPY $x0
    %1:_(<8 x s16>) = G_LOAD %0(p0) :: (load (<8 x s16>))
    %2:_(s16) = G_VECREDUCE_ADD %1(<8 x s16>)
    %3:_(s32) = G_ANYEXT %2(s16)
    $w0 = COPY %3(s32)
    RET_ReallyLR implicit $w0

...
---
name:            add_v4s32
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $x0
    ; CHECK-LABEL: name: add_v4s32
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
    ; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load (<4 x s32>))
    ; CHECK-NEXT: [[VECREDUCE_ADD:%[0-9]+]]:_(s32) = G_VECREDUCE_ADD [[LOAD]](<4 x s32>)
    ; CHECK-NEXT: $w0 = COPY [[VECREDUCE_ADD]](s32)
    ; CHECK-NEXT: RET_ReallyLR implicit $w0
    %0:_(p0) = COPY $x0
    %1:_(<4 x s32>) = G_LOAD %0(p0) :: (load (<4 x s32>))
    %2:_(s32) = G_VECREDUCE_ADD %1(<4 x s32>)
    $w0 = COPY %2(s32)
    RET_ReallyLR implicit $w0

...
---
name:            add_v2s64
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $x0
    ; CHECK-LABEL: name: add_v2s64
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
    ; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(<2 x s64>) = G_LOAD [[COPY]](p0) :: (load (<2 x s64>))
    ; CHECK-NEXT: [[VECREDUCE_ADD:%[0-9]+]]:_(s64) = G_VECREDUCE_ADD [[LOAD]](<2 x s64>)
    ; CHECK-NEXT: $x0 = COPY [[VECREDUCE_ADD]](s64)
    ; CHECK-NEXT: RET_ReallyLR implicit $x0
    %0:_(p0) = COPY $x0
    %1:_(<2 x s64>) = G_LOAD %0(p0) :: (load (<2 x s64>))
    %2:_(s64) = G_VECREDUCE_ADD %1(<2 x s64>)
    $x0 = COPY %2(s64)
    RET_ReallyLR implicit $x0

...
---
name:            add_v2s32
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $x0
    ; CHECK-LABEL: name: add_v2s32
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
    ; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p0) :: (load (<2 x s32>))
    ; CHECK-NEXT: [[VECREDUCE_ADD:%[0-9]+]]:_(s32) = G_VECREDUCE_ADD [[LOAD]](<2 x s32>)
    ; CHECK-NEXT: $w0 = COPY [[VECREDUCE_ADD]](s32)
    ; CHECK-NEXT: RET_ReallyLR implicit $w0
    %0:_(p0) = COPY $x0
    %1:_(<2 x s32>) = G_LOAD %0(p0) :: (load (<2 x s32>))
    %2:_(s32) = G_VECREDUCE_ADD %1(<2 x s32>)
    $w0 = COPY %2(s32)
    RET_ReallyLR implicit $w0

...
---
name:            test_v8i64
# This is a power-of-2 legalization, so use a tree reduction.
alignment:       4
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $q0, $q1, $q2, $q3
    ; CHECK-LABEL: name: test_v8i64
    ; CHECK: liveins: $q0, $q1, $q2, $q3
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $q0
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<2 x s64>) = COPY $q1
    ; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(<2 x s64>) = COPY $q2
    ; CHECK-NEXT: [[COPY3:%[0-9]+]]:_(<2 x s64>) = COPY $q3
    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(<2 x s64>) = G_ADD [[COPY]], [[COPY1]]
    ; CHECK-NEXT: [[ADD1:%[0-9]+]]:_(<2 x s64>) = G_ADD [[COPY2]], [[COPY3]]
    ; CHECK-NEXT: [[ADD2:%[0-9]+]]:_(<2 x s64>) = G_ADD [[ADD]], [[ADD1]]
    ; CHECK-NEXT: [[VECREDUCE_ADD:%[0-9]+]]:_(s64) = G_VECREDUCE_ADD [[ADD2]](<2 x s64>)
    ; CHECK-NEXT: $x0 = COPY [[VECREDUCE_ADD]](s64)
    ; CHECK-NEXT: RET_ReallyLR implicit $x0
    %0:_(<2 x s64>) = COPY $q0
    %1:_(<2 x s64>) = COPY $q1
    %2:_(<2 x s64>) = COPY $q2
    %3:_(<2 x s64>) = COPY $q3
    %4:_(<4 x s64>) = G_CONCAT_VECTORS %0(<2 x s64>), %1(<2 x s64>)
    %5:_(<4 x s64>) = G_CONCAT_VECTORS %2(<2 x s64>), %3(<2 x s64>)
    %6:_(<8 x s64>) = G_CONCAT_VECTORS %4(<4 x s64>), %5(<4 x s64>)
    %7:_(s64) = G_VECREDUCE_ADD %6(<8 x s64>)
    $x0 = COPY %7(s64)
    RET_ReallyLR implicit $x0

...
---
name:            test_v6i64
# This is a non-power-of-2 legalization, generate multiple vector reductions
# and combine them with scalar ops.
alignment:       4
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $q0, $q1, $q2, $q3
    ; CHECK-LABEL: name: test_v6i64
    ; CHECK: liveins: $q0, $q1, $q2, $q3
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $q0
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(<2 x s64>) = COPY $q1
    ; CHECK-NEXT: [[COPY2:%[0-9]+]]:_(<2 x s64>) = COPY $q2
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[DEF]](s64), [[DEF]](s64)
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
    ; CHECK-NEXT: [[IVEC:%[0-9]+]]:_(<2 x s64>) = G_INSERT_VECTOR_ELT [[BUILD_VECTOR]], [[C]](s64), [[C]](s64)
    ; CHECK-NEXT: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 1
    ; CHECK-NEXT: [[IVEC1:%[0-9]+]]:_(<2 x s64>) = G_INSERT_VECTOR_ELT [[IVEC]], [[C]](s64), [[C1]](s64)
    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(<2 x s64>) = G_ADD [[COPY]], [[COPY1]]
    ; CHECK-NEXT: [[ADD1:%[0-9]+]]:_(<2 x s64>) = G_ADD [[COPY2]], [[IVEC1]]
    ; CHECK-NEXT: [[ADD2:%[0-9]+]]:_(<2 x s64>) = G_ADD [[ADD]], [[ADD1]]
    ; CHECK-NEXT: [[VECREDUCE_ADD:%[0-9]+]]:_(s64) = G_VECREDUCE_ADD [[ADD2]](<2 x s64>)
    ; CHECK-NEXT: $x0 = COPY [[VECREDUCE_ADD]](s64)
    ; CHECK-NEXT: RET_ReallyLR implicit $x0
    %0:_(<2 x s64>) = COPY $q0
    %1:_(<2 x s64>) = COPY $q1
    %2:_(<2 x s64>) = COPY $q2
    %3:_(<6 x s64>) = G_CONCAT_VECTORS %0(<2 x s64>), %1(<2 x s64>), %2(<2 x s64>)
    %4:_(s64) = G_VECREDUCE_ADD %3(<6 x s64>)
    $x0 = COPY %4(s64)
    RET_ReallyLR implicit $x0

...