test/CodeGen/Mips/GlobalISel/legalizer/phi.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=legalizer -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32
--- |

  define i1 @phi_i1(i1 %cnd, i1 %a, i1 %b) {
  entry:
    br i1 %cnd, label %cond.true, label %cond.false

  cond.true:                                        ; preds = %entry
    br label %cond.end

  cond.false:                                       ; preds = %entry
    br label %cond.end

  cond.end:                                         ; preds = %cond.false, %cond.true
    %cond = phi i1 [ %a, %cond.true ], [ %b, %cond.false ]
    ret i1 %cond
  }

  define i8 @phi_i8(i1 %cnd, i8 %a, i8 %b) {
  entry:
    br i1 %cnd, label %cond.true, label %cond.false

  cond.true:                                        ; preds = %entry
    br label %cond.end

  cond.false:                                       ; preds = %entry
    br label %cond.end

  cond.end:                                         ; preds = %cond.false, %cond.true
    %cond = phi i8 [ %a, %cond.true ], [ %b, %cond.false ]
    ret i8 %cond
  }

  define i16 @phi_i16(i1 %cnd, i16 %a, i16 %b) {
  entry:
    br i1 %cnd, label %cond.true, label %cond.false

  cond.true:                                        ; preds = %entry
    br label %cond.end

  cond.false:                                       ; preds = %entry
    br label %cond.end

  cond.end:                                         ; preds = %cond.false, %cond.true
    %cond = phi i16 [ %a, %cond.true ], [ %b, %cond.false ]
    ret i16 %cond
  }

  define i32 @phi_i32(i1 %cnd, i32 %a, i32 %b) {
  entry:
    br i1 %cnd, label %cond.true, label %cond.false

  cond.true:                                        ; preds = %entry
    br label %cond.end

  cond.false:                                       ; preds = %entry
    br label %cond.end

  cond.end:                                         ; preds = %cond.false, %cond.true
    %cond = phi i32 [ %a, %cond.true ], [ %b, %cond.false ]
    ret i32 %cond
  }

  define i64 @phi_i64(i1 %cnd, i64 %a, i64 %b) {
  entry:
    br i1 %cnd, label %cond.true, label %cond.false

  cond.true:                                        ; preds = %entry
    br label %cond.end

  cond.false:                                       ; preds = %entry
    br label %cond.end

  cond.end:                                         ; preds = %cond.false, %cond.true
    %cond = phi i64 [ %a, %cond.true ], [ %b, %cond.false ]
    ret i64 %cond
  }

  define float @phi_float(i1 %cnd, float %a, float %b) {
  entry:
    br i1 %cnd, label %cond.true, label %cond.false

  cond.true:                                        ; preds = %entry
    br label %cond.end

  cond.false:                                       ; preds = %entry
    br label %cond.end

  cond.end:                                         ; preds = %cond.false, %cond.true
    %cond = phi float [ %a, %cond.true ], [ %b, %cond.false ]
    ret float %cond
  }

  define double @phi_double(double %a, double %b, i1 %cnd) {
  entry:
    br i1 %cnd, label %cond.true, label %cond.false

  cond.true:                                        ; preds = %entry
    br label %cond.end

  cond.false:                                       ; preds = %entry
    br label %cond.end

  cond.end:                                         ; preds = %cond.false, %cond.true
    %cond = phi double [ %a, %cond.true ], [ %b, %cond.false ]
    ret double %cond
  }

...
---
name:            phi_i1
alignment:       4
tracksRegLiveness: true
body:             |
  ; MIPS32-LABEL: name: phi_i1
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; MIPS32:   liveins: $a0, $a1, $a2
  ; MIPS32:   [[COPY:%[0-9]+]]:_(s32) = COPY $a0
  ; MIPS32:   [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
  ; MIPS32:   [[COPY2:%[0-9]+]]:_(s32) = COPY $a2
  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.1
  ; MIPS32:   G_BR %bb.2
  ; MIPS32: bb.1.cond.true:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
  ; MIPS32:   G_BR %bb.3
  ; MIPS32: bb.2.cond.false:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
  ; MIPS32: bb.3.cond.end:
  ; MIPS32:   [[PHI:%[0-9]+]]:_(s32) = G_PHI [[COPY4]](s32), %bb.1, [[COPY5]](s32), %bb.2
  ; MIPS32:   [[COPY6:%[0-9]+]]:_(s32) = COPY [[PHI]](s32)
  ; MIPS32:   $v0 = COPY [[COPY6]](s32)
  ; MIPS32:   RetRA implicit $v0
  bb.1.entry:
    liveins: $a0, $a1, $a2

    %3:_(s32) = COPY $a0
    %0:_(s1) = G_TRUNC %3(s32)
    %4:_(s32) = COPY $a1
    %1:_(s1) = G_TRUNC %4(s32)
    %5:_(s32) = COPY $a2
    %2:_(s1) = G_TRUNC %5(s32)
    G_BRCOND %0(s1), %bb.2
    G_BR %bb.3

  bb.2.cond.true:
    G_BR %bb.4

  bb.3.cond.false:

  bb.4.cond.end:
    %6:_(s1) = G_PHI %1(s1), %bb.2, %2(s1), %bb.3
    %7:_(s32) = G_ANYEXT %6(s1)
    $v0 = COPY %7(s32)
    RetRA implicit $v0

...
---
name:            phi_i8
alignment:       4
tracksRegLiveness: true
body:             |
  ; MIPS32-LABEL: name: phi_i8
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; MIPS32:   liveins: $a0, $a1, $a2
  ; MIPS32:   [[COPY:%[0-9]+]]:_(s32) = COPY $a0
  ; MIPS32:   [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
  ; MIPS32:   [[COPY2:%[0-9]+]]:_(s32) = COPY $a2
  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.1
  ; MIPS32:   G_BR %bb.2
  ; MIPS32: bb.1.cond.true:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
  ; MIPS32:   G_BR %bb.3
  ; MIPS32: bb.2.cond.false:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
  ; MIPS32: bb.3.cond.end:
  ; MIPS32:   [[PHI:%[0-9]+]]:_(s32) = G_PHI [[COPY4]](s32), %bb.1, [[COPY5]](s32), %bb.2
  ; MIPS32:   [[COPY6:%[0-9]+]]:_(s32) = COPY [[PHI]](s32)
  ; MIPS32:   $v0 = COPY [[COPY6]](s32)
  ; MIPS32:   RetRA implicit $v0
  bb.1.entry:
    liveins: $a0, $a1, $a2

    %3:_(s32) = COPY $a0
    %0:_(s1) = G_TRUNC %3(s32)
    %4:_(s32) = COPY $a1
    %1:_(s8) = G_TRUNC %4(s32)
    %5:_(s32) = COPY $a2
    %2:_(s8) = G_TRUNC %5(s32)
    G_BRCOND %0(s1), %bb.2
    G_BR %bb.3

  bb.2.cond.true:
    G_BR %bb.4

  bb.3.cond.false:

  bb.4.cond.end:
    %6:_(s8) = G_PHI %1(s8), %bb.2, %2(s8), %bb.3
    %7:_(s32) = G_ANYEXT %6(s8)
    $v0 = COPY %7(s32)
    RetRA implicit $v0

...
---
name:            phi_i16
alignment:       4
tracksRegLiveness: true
body:             |
  ; MIPS32-LABEL: name: phi_i16
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; MIPS32:   liveins: $a0, $a1, $a2
  ; MIPS32:   [[COPY:%[0-9]+]]:_(s32) = COPY $a0
  ; MIPS32:   [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
  ; MIPS32:   [[COPY2:%[0-9]+]]:_(s32) = COPY $a2
  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.1
  ; MIPS32:   G_BR %bb.2
  ; MIPS32: bb.1.cond.true:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   [[COPY4:%[0-9]+]]:_(s32) = COPY [[COPY1]](s32)
  ; MIPS32:   G_BR %bb.3
  ; MIPS32: bb.2.cond.false:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   [[COPY5:%[0-9]+]]:_(s32) = COPY [[COPY2]](s32)
  ; MIPS32: bb.3.cond.end:
  ; MIPS32:   [[PHI:%[0-9]+]]:_(s32) = G_PHI [[COPY4]](s32), %bb.1, [[COPY5]](s32), %bb.2
  ; MIPS32:   [[COPY6:%[0-9]+]]:_(s32) = COPY [[PHI]](s32)
  ; MIPS32:   $v0 = COPY [[COPY6]](s32)
  ; MIPS32:   RetRA implicit $v0
  bb.1.entry:
    liveins: $a0, $a1, $a2

    %3:_(s32) = COPY $a0
    %0:_(s1) = G_TRUNC %3(s32)
    %4:_(s32) = COPY $a1
    %1:_(s16) = G_TRUNC %4(s32)
    %5:_(s32) = COPY $a2
    %2:_(s16) = G_TRUNC %5(s32)
    G_BRCOND %0(s1), %bb.2
    G_BR %bb.3

  bb.2.cond.true:
    G_BR %bb.4

  bb.3.cond.false:

  bb.4.cond.end:
    %6:_(s16) = G_PHI %1(s16), %bb.2, %2(s16), %bb.3
    %7:_(s32) = G_ANYEXT %6(s16)
    $v0 = COPY %7(s32)
    RetRA implicit $v0

...
---
name:            phi_i32
alignment:       4
tracksRegLiveness: true
body:             |
  ; MIPS32-LABEL: name: phi_i32
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; MIPS32:   liveins: $a0, $a1, $a2
  ; MIPS32:   [[COPY:%[0-9]+]]:_(s32) = COPY $a0
  ; MIPS32:   [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
  ; MIPS32:   [[COPY2:%[0-9]+]]:_(s32) = COPY $a2
  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.1
  ; MIPS32:   G_BR %bb.2
  ; MIPS32: bb.1.cond.true:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   G_BR %bb.3
  ; MIPS32: bb.2.cond.false:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32: bb.3.cond.end:
  ; MIPS32:   [[PHI:%[0-9]+]]:_(s32) = G_PHI [[COPY1]](s32), %bb.1, [[COPY2]](s32), %bb.2
  ; MIPS32:   $v0 = COPY [[PHI]](s32)
  ; MIPS32:   RetRA implicit $v0
  bb.1.entry:
    liveins: $a0, $a1, $a2

    %3:_(s32) = COPY $a0
    %0:_(s1) = G_TRUNC %3(s32)
    %1:_(s32) = COPY $a1
    %2:_(s32) = COPY $a2
    G_BRCOND %0(s1), %bb.2
    G_BR %bb.3

  bb.2.cond.true:
    G_BR %bb.4

  bb.3.cond.false:

  bb.4.cond.end:
    %4:_(s32) = G_PHI %1(s32), %bb.2, %2(s32), %bb.3
    $v0 = COPY %4(s32)
    RetRA implicit $v0

...
---
name:            phi_i64
alignment:       4
tracksRegLiveness: true
fixedStack:
  - { id: 0, offset: 20, size: 4, alignment: 4, isImmutable: true }
  - { id: 1, offset: 16, size: 4, alignment: 8, isImmutable: true }
body:             |
  ; MIPS32-LABEL: name: phi_i64
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; MIPS32:   liveins: $a0, $a2, $a3
  ; MIPS32:   [[COPY:%[0-9]+]]:_(s32) = COPY $a0
  ; MIPS32:   [[COPY1:%[0-9]+]]:_(s32) = COPY $a2
  ; MIPS32:   [[COPY2:%[0-9]+]]:_(s32) = COPY $a3
  ; MIPS32:   [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
  ; MIPS32:   [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.0
  ; MIPS32:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[FRAME_INDEX]](p0) :: (load 4 from %fixed-stack.0, align 8)
  ; MIPS32:   [[FRAME_INDEX1:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.1
  ; MIPS32:   [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[FRAME_INDEX1]](p0) :: (load 4 from %fixed-stack.1)
  ; MIPS32:   [[MV1:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[LOAD]](s32), [[LOAD1]](s32)
  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY3:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.1
  ; MIPS32:   G_BR %bb.2
  ; MIPS32: bb.1.cond.true:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   G_BR %bb.3
  ; MIPS32: bb.2.cond.false:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32: bb.3.cond.end:
  ; MIPS32:   [[PHI:%[0-9]+]]:_(s64) = G_PHI [[MV]](s64), %bb.1, [[MV1]](s64), %bb.2
  ; MIPS32:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[PHI]](s64)
  ; MIPS32:   $v0 = COPY [[UV]](s32)
  ; MIPS32:   $v1 = COPY [[UV1]](s32)
  ; MIPS32:   RetRA implicit $v0, implicit $v1
  bb.1.entry:
    liveins: $a0, $a2, $a3

    %3:_(s32) = COPY $a0
    %0:_(s1) = G_TRUNC %3(s32)
    %4:_(s32) = COPY $a2
    %5:_(s32) = COPY $a3
    %1:_(s64) = G_MERGE_VALUES %4(s32), %5(s32)
    %8:_(p0) = G_FRAME_INDEX %fixed-stack.1
    %6:_(s32) = G_LOAD %8(p0) :: (load 4 from %fixed-stack.1, align 8)
    %9:_(p0) = G_FRAME_INDEX %fixed-stack.0
    %7:_(s32) = G_LOAD %9(p0) :: (load 4 from %fixed-stack.0)
    %2:_(s64) = G_MERGE_VALUES %6(s32), %7(s32)
    G_BRCOND %0(s1), %bb.2
    G_BR %bb.3

  bb.2.cond.true:
    G_BR %bb.4

  bb.3.cond.false:

  bb.4.cond.end:
    %10:_(s64) = G_PHI %1(s64), %bb.2, %2(s64), %bb.3
    %11:_(s32), %12:_(s32) = G_UNMERGE_VALUES %10(s64)
    $v0 = COPY %11(s32)
    $v1 = COPY %12(s32)
    RetRA implicit $v0, implicit $v1

...
---
name:            phi_float
alignment:       4
tracksRegLiveness: true
body:             |
  ; MIPS32-LABEL: name: phi_float
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; MIPS32:   liveins: $a0, $a1, $a2
  ; MIPS32:   [[COPY:%[0-9]+]]:_(s32) = COPY $a0
  ; MIPS32:   [[MTC1_:%[0-9]+]]:fgr32(s32) = MTC1 $a1
  ; MIPS32:   [[MTC1_1:%[0-9]+]]:fgr32(s32) = MTC1 $a2
  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.1
  ; MIPS32:   G_BR %bb.2
  ; MIPS32: bb.1.cond.true:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   G_BR %bb.3
  ; MIPS32: bb.2.cond.false:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32: bb.3.cond.end:
  ; MIPS32:   [[PHI:%[0-9]+]]:_(s32) = G_PHI [[MTC1_]](s32), %bb.1, [[MTC1_1]](s32), %bb.2
  ; MIPS32:   $f0 = COPY [[PHI]](s32)
  ; MIPS32:   RetRA implicit $f0
  bb.1.entry:
    liveins: $a0, $a1, $a2

    %3:_(s32) = COPY $a0
    %0:_(s1) = G_TRUNC %3(s32)
    %1:fgr32(s32) = MTC1 $a1
    %2:fgr32(s32) = MTC1 $a2
    G_BRCOND %0(s1), %bb.2
    G_BR %bb.3

  bb.2.cond.true:
    G_BR %bb.4

  bb.3.cond.false:

  bb.4.cond.end:
    %4:_(s32) = G_PHI %1(s32), %bb.2, %2(s32), %bb.3
    $f0 = COPY %4(s32)
    RetRA implicit $f0

...
---
name:            phi_double
alignment:       4
tracksRegLiveness: true
fixedStack:
  - { id: 0, offset: 16, size: 4, alignment: 8, isImmutable: true }
body:             |
  ; MIPS32-LABEL: name: phi_double
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; MIPS32:   liveins: $d6, $d7
  ; MIPS32:   [[COPY:%[0-9]+]]:_(s64) = COPY $d6
  ; MIPS32:   [[COPY1:%[0-9]+]]:_(s64) = COPY $d7
  ; MIPS32:   [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.0
  ; MIPS32:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[FRAME_INDEX]](p0) :: (load 4 from %fixed-stack.0, align 8)
  ; MIPS32:   [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.1
  ; MIPS32:   G_BR %bb.2
  ; MIPS32: bb.1.cond.true:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32:   G_BR %bb.3
  ; MIPS32: bb.2.cond.false:
  ; MIPS32:   successors: %bb.3(0x80000000)
  ; MIPS32: bb.3.cond.end:
  ; MIPS32:   [[PHI:%[0-9]+]]:_(s64) = G_PHI [[COPY]](s64), %bb.1, [[COPY1]](s64), %bb.2
  ; MIPS32:   $d0 = COPY [[PHI]](s64)
  ; MIPS32:   RetRA implicit $d0
  bb.1.entry:
    liveins: $d6, $d7

    %0:_(s64) = COPY $d6
    %1:_(s64) = COPY $d7
    %4:_(p0) = G_FRAME_INDEX %fixed-stack.0
    %3:_(s32) = G_LOAD %4(p0) :: (load 4 from %fixed-stack.0, align 8)
    %2:_(s1) = G_TRUNC %3(s32)
    G_BRCOND %2(s1), %bb.2
    G_BR %bb.3

  bb.2.cond.true:
    G_BR %bb.4

  bb.3.cond.false:

  bb.4.cond.end:
    %5:_(s64) = G_PHI %0(s64), %bb.2, %1(s64), %bb.3
    $d0 = COPY %5(s64)
    RetRA implicit $d0

...