test/CodeGen/AArch64/GlobalISel/legalize-usub-sat.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -march=aarch64 -run-pass=legalizer -global-isel-abort=1 %s -o - | FileCheck %s
---
name:            func
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$w0' }
  - { reg: '$w1' }
body:             |
  bb.1:
    liveins: $w0, $w1

    ; CHECK-LABEL: name: func
    ; CHECK: liveins: $w0, $w1
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
    ; CHECK: [[USUBO:%[0-9]+]]:_(s32), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[COPY]], [[COPY1]]
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[USUBO1]](s1), [[C]], [[USUBO]]
    ; CHECK: $w0 = COPY [[SELECT]](s32)
    ; CHECK: RET_ReallyLR implicit $w0
    %0:_(s32) = COPY $w0
    %1:_(s32) = COPY $w1
    %2:_(s32) = G_USUBSAT %0, %1
    $w0 = COPY %2(s32)
    RET_ReallyLR implicit $w0

...
---
name:            func2
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$x0' }
  - { reg: '$x1' }
body:             |
  bb.1:
    liveins: $x0, $x1

    ; CHECK-LABEL: name: func2
    ; CHECK: liveins: $x0, $x1
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
    ; CHECK: [[USUBO:%[0-9]+]]:_(s64), [[USUBO1:%[0-9]+]]:_(s1) = G_USUBO [[COPY]], [[COPY1]]
    ; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
    ; CHECK: [[SELECT:%[0-9]+]]:_(s64) = G_SELECT [[USUBO1]](s1), [[C]], [[USUBO]]
    ; CHECK: $x0 = COPY [[SELECT]](s64)
    ; CHECK: RET_ReallyLR implicit $x0
    %0:_(s64) = COPY $x0
    %1:_(s64) = COPY $x1
    %2:_(s64) = G_USUBSAT %0, %1
    $x0 = COPY %2(s64)
    RET_ReallyLR implicit $x0

...
---
name:            func16
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$w0' }
  - { reg: '$w1' }
body:             |
  bb.1:
    liveins: $w0, $w1

    ; CHECK-LABEL: name: func16
    ; CHECK: liveins: $w0, $w1
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C]]
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[AND]], [[AND1]]
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
    ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ne), [[SUB]](s32), [[AND2]]
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32)
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[C1]], [[COPY5]]
    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[SELECT]](s32)
    ; CHECK: $w0 = COPY [[COPY6]](s32)
    ; CHECK: RET_ReallyLR implicit $w0
    %2:_(s32) = COPY $w0
    %0:_(s16) = G_TRUNC %2(s32)
    %3:_(s32) = COPY $w1
    %1:_(s16) = G_TRUNC %3(s32)
    %4:_(s16) = G_USUBSAT %0, %1
    %5:_(s32) = G_ANYEXT %4(s16)
    $w0 = COPY %5(s32)
    RET_ReallyLR implicit $w0

...
---
name:            func8
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$w0' }
  - { reg: '$w1' }
body:             |
  bb.1:
    liveins: $w0, $w1

    ; CHECK-LABEL: name: func8
    ; CHECK: liveins: $w0, $w1
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C]]
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[AND]], [[AND1]]
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
    ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ne), [[SUB]](s32), [[AND2]]
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32)
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[C1]], [[COPY5]]
    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[SELECT]](s32)
    ; CHECK: $w0 = COPY [[COPY6]](s32)
    ; CHECK: RET_ReallyLR implicit $w0
    %2:_(s32) = COPY $w0
    %0:_(s8) = G_TRUNC %2(s32)
    %3:_(s32) = COPY $w1
    %1:_(s8) = G_TRUNC %3(s32)
    %4:_(s8) = G_USUBSAT %0, %1
    %5:_(s32) = G_ANYEXT %4(s8)
    $w0 = COPY %5(s32)
    RET_ReallyLR implicit $w0

...
---
name:            func3
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$w0' }
  - { reg: '$w1' }
body:             |
  bb.1:
    liveins: $w0, $w1

    ; CHECK-LABEL: name: func3
    ; CHECK: liveins: $w0, $w1
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $w1
    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 15
    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C]]
    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[AND]], [[AND1]]
    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
    ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ne), [[SUB]](s32), [[AND2]]
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32)
    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[SUB]](s32)
    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[C1]], [[COPY5]]
    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[SELECT]](s32)
    ; CHECK: $w0 = COPY [[COPY6]](s32)
    ; CHECK: RET_ReallyLR implicit $w0
    %2:_(s32) = COPY $w0
    %0:_(s4) = G_TRUNC %2(s32)
    %3:_(s32) = COPY $w1
    %1:_(s4) = G_TRUNC %3(s32)
    %4:_(s4) = G_USUBSAT %0, %1
    %5:_(s32) = G_ANYEXT %4(s4)
    $w0 = COPY %5(s32)
    RET_ReallyLR implicit $w0

...