third_party/llvm-7.0/llvm/test/CodeGen/AArch64/GlobalISel/legalize-simple.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -run-pass=legalizer %s -o - | FileCheck %s

--- |
  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
  target triple = "aarch64--"
  define void @test_simple() {
  entry:
    ret void
  next:
    ret void
  }
  define void @bitcast128() {
    ret void
  }
  define void @testExtOfCopyOfTrunc() {
    ret void
  }
  define void @testExtOf2CopyOfTrunc() {
    ret void
  }
...

---
name:            test_simple
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
  - { id: 4, class: _ }
  - { id: 5, class: _ }
  - { id: 6, class: _ }
  - { id: 7, class: _ }
  - { id: 8, class: _ }
  - { id: 9, class: _ }
  - { id: 10, class: _ }
  - { id: 11, class: _ }
  - { id: 12, class: _ }
  - { id: 13, class: _ }
  - { id: 14, class: _ }
  - { id: 15, class: _ }
  - { id: 16, class: _ }
body: |
  ; CHECK-LABEL: name: test_simple
  ; CHECK: bb.0.{{[a-zA-Z0-9]+}}:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[COPY:%[0-9]+]]:_(s64) = COPY $x0
  ; CHECK:   [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[INTTOPTR:%[0-9]+]]:_(p0) = G_INTTOPTR [[COPY]](s64)
  ; CHECK:   [[PTRTOINT:%[0-9]+]]:_(s64) = G_PTRTOINT [[INTTOPTR]](p0)
  ; CHECK:   $x0 = COPY [[PTRTOINT]](s64)
  ; CHECK:   G_BRCOND [[TRUNC]](s1), %bb.1
  ; CHECK: bb.1.{{[a-zA-Z0-9]+}}:
  ; CHECK:   [[TRUNC2:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[TRUNC3:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[TRUNC2]], [[TRUNC3]]
  ; CHECK:   [[COPY1:%[0-9]+]]:_(s32) = COPY [[SELECT]](s32)
  ; CHECK:   $w0 = COPY [[COPY1]](s32)
  ; CHECK:   [[TRUNC4:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[TRUNC5:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[TRUNC4]], [[TRUNC5]]
  ; CHECK:   [[COPY2:%[0-9]+]]:_(s32) = COPY [[SELECT1]](s32)
  ; CHECK:   $w0 = COPY [[COPY2]](s32)
  ; CHECK:   [[TRUNC6:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[TRUNC7:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
  ; CHECK:   [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[TRUNC6]], [[TRUNC7]]
  ; CHECK:   [[COPY3:%[0-9]+]]:_(s32) = COPY [[SELECT2]](s32)
  ; CHECK:   $w0 = COPY [[COPY3]](s32)
  ; CHECK:   [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[TRUNC]](s1), [[TRUNC1]], [[TRUNC1]]
  ; CHECK:   [[SELECT4:%[0-9]+]]:_(s64) = G_SELECT [[TRUNC]](s1), [[COPY]], [[COPY]]
  ; CHECK:   $x0 = COPY [[SELECT4]](s64)
  ; CHECK:   [[BITCAST:%[0-9]+]]:_(<2 x s32>) = G_BITCAST [[COPY]](s64)
  ; CHECK:   [[BITCAST1:%[0-9]+]]:_(s64) = G_BITCAST [[BITCAST]](<2 x s32>)
  ; CHECK:   $x0 = COPY [[BITCAST1]](s64)
  ; CHECK:   [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[SELECT3]](s32)
  ; CHECK:   $w0 = COPY [[BITCAST2]](s32)
  ; CHECK:   [[BITCAST3:%[0-9]+]]:_(<4 x s8>) = G_BITCAST [[COPY]](s64)
  ; CHECK:   [[BITCAST4:%[0-9]+]]:_(s32) = G_BITCAST [[BITCAST3]](<4 x s8>)
  ; CHECK:   $w0 = COPY [[BITCAST4]](s32)
  ; CHECK:   [[BITCAST5:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[COPY]](s64)
  ; CHECK:   [[BITCAST6:%[0-9]+]]:_(s32) = G_BITCAST [[BITCAST5]](<2 x s16>)
  ; CHECK:   $w0 = COPY [[BITCAST6]](s32)
  bb.0.entry:
    liveins: $x0, $x1, $x2, $x3
    %0(s64) = COPY $x0

    %1(s1) = G_TRUNC %0
    %2(s8) = G_TRUNC %0
    %3(s16) = G_TRUNC %0
    %4(s32) = G_TRUNC %0

    %5(p0) = G_INTTOPTR %0
    %6(s64) = G_PTRTOINT %5
    $x0 = COPY %6

    G_BRCOND %1, %bb.1

  bb.1.next:

    %7(s1) = G_SELECT %1, %1, %1
    %21:_(s32) = G_ANYEXT %7
    $w0 = COPY %21

    %8(s8) = G_SELECT %1, %2, %2
    %20:_(s32) = G_ANYEXT %8
    $w0 = COPY %20

    %9(s16) = G_SELECT %1, %3, %3
    %19:_(s32) = G_ANYEXT %9
    $w0 = COPY %19

    %10(s32) = G_SELECT %1, %4, %4
    %11(s64) = G_SELECT %1, %0, %0
    $x0 = COPY %11

    %12(<2 x s32>) = G_BITCAST %0
    %13(s64) = G_BITCAST %12
    $x0 = COPY %13
    %14(s32) = G_BITCAST %10
    $w0 = COPY %14
    %15(<4 x s8>) = G_BITCAST %0
    %17:_(s32) = G_BITCAST %15
    $w0 = COPY %17
    %16(<2 x s16>) = G_BITCAST %0
    %18:_(s32) = G_BITCAST %16
    $w0 = COPY %18
...

---
name:            bitcast128
tracksRegLiveness: true
registers:
  - { id: 0, class: _}
  - { id: 1, class: _}
  - { id: 2, class: _}
  - { id: 3, class: _}
body:             |
  bb.1:
    liveins: $x0, $x1
    ; This is legal and shouldn't be changed.
    ; CHECK-LABEL: name: bitcast128
    ; CHECK: liveins: $x0, $x1
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
    ; CHECK: [[MV:%[0-9]+]]:_(s128) = G_MERGE_VALUES [[COPY]](s64), [[COPY1]](s64)
    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s64>) = G_BITCAST [[MV]](s128)
    ; CHECK: $q0 = COPY [[BITCAST]](<2 x s64>)
    ; CHECK: RET_ReallyLR implicit $q0
    %0(s64) = COPY $x0
    %1(s64) = COPY $x1
    %3(s128) = G_MERGE_VALUES %0(s64), %1(s64)
    %2(<2 x s64>) = G_BITCAST %3(s128)
    $q0 = COPY %2(<2 x s64>)
    RET_ReallyLR implicit $q0

...
---
name:            testExtOfCopyOfTrunc
tracksRegLiveness: true
registers:
  - { id: 0, class: _}
  - { id: 1, class: _}
  - { id: 2, class: _}
  - { id: 3, class: _}
body:             |
  bb.1:
    liveins: $x0
    ; CHECK-LABEL: name: testExtOfCopyOfTrunc
    ; CHECK: liveins: $x0
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY [[COPY]](s64)
    ; CHECK: $x0 = COPY [[COPY1]](s64)
    ; CHECK: RET_ReallyLR implicit $x0
    %0(s64) = COPY $x0
    %1(s1) = G_TRUNC %0
    %2(s1) = COPY %1
    %3(s64) = G_ANYEXT %2
    $x0 = COPY %3
    RET_ReallyLR implicit $x0

...
---
name:            testExtOf2CopyOfTrunc
tracksRegLiveness: true
registers:
  - { id: 0, class: _}
  - { id: 1, class: _}
  - { id: 2, class: _}
  - { id: 3, class: _}
body:             |
  bb.1:
    liveins: $x0
    ; CHECK-LABEL: name: testExtOf2CopyOfTrunc
    ; CHECK: liveins: $x0
    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
    ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY [[COPY]](s64)
    ; CHECK: $x0 = COPY [[COPY1]](s64)
    ; CHECK: RET_ReallyLR implicit $x0
    %0(s64) = COPY $x0
    %1(s1) = G_TRUNC %0
    %2(s1) = COPY %1
    %4:_(s1) = COPY %2
    %3(s64) = G_ANYEXT %4
    $x0 = COPY %3
    RET_ReallyLR implicit $x0

...