llvm/llvm/test/CodeGen/Mips/GlobalISel/regbankselect/jump_table_and_brjt.mir

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

  define i32 @mod4_0_to_11(i32 %a) {
  entry:
    switch i32 %a, label %sw.default [
      i32 0, label %sw.bb
      i32 4, label %sw.bb
      i32 1, label %sw.bb1
      i32 5, label %sw.bb1
      i32 2, label %sw.bb2
      i32 6, label %sw.bb2
      i32 3, label %sw.bb3
      i32 7, label %sw.bb3
    ]

  sw.bb:                                            ; preds = %entry, %entry
    ret i32 0

  sw.bb1:                                           ; preds = %entry, %entry
    ret i32 1

  sw.bb2:                                           ; preds = %entry, %entry
    ret i32 2

  sw.bb3:                                           ; preds = %entry, %entry
    ret i32 3

  sw.default:                                       ; preds = %entry
    br label %sw.epilog

  sw.epilog:                                        ; preds = %sw.default
    switch i32 %a, label %sw.default8 [
      i32 8, label %sw.bb4
      i32 9, label %sw.bb5
      i32 10, label %sw.bb6
      i32 11, label %sw.bb7
    ]

  sw.bb4:                                           ; preds = %sw.epilog
    ret i32 0

  sw.bb5:                                           ; preds = %sw.epilog
    ret i32 1

  sw.bb6:                                           ; preds = %sw.epilog
    ret i32 2

  sw.bb7:                                           ; preds = %sw.epilog
    ret i32 3

  sw.default8:                                      ; preds = %sw.epilog
    ret i32 -1
  }

...
---
name:            mod4_0_to_11
alignment:       4
legalized:       true
tracksRegLiveness: true
jumpTable:
  kind:            block-address
  entries:
    - id:              0
      blocks:          [ '%bb.2', '%bb.3', '%bb.4', '%bb.5', '%bb.2', '%bb.3',
                         '%bb.4', '%bb.5' ]
    - id:              1
      blocks:          [ '%bb.8', '%bb.9', '%bb.10', '%bb.11' ]
body:             |
  ; MIPS32-LABEL: name: mod4_0_to_11
  ; MIPS32: bb.0.entry:
  ; MIPS32:   successors: %bb.6(0x40000000), %bb.1(0x40000000)
  ; MIPS32:   liveins: $a0
  ; MIPS32:   [[COPY:%[0-9]+]]:gprb(s32) = COPY $a0
  ; MIPS32:   [[C:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 7
  ; MIPS32:   [[C1:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 3
  ; MIPS32:   [[C2:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 2
  ; MIPS32:   [[C3:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[C4:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 0
  ; MIPS32:   [[C5:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 -1
  ; MIPS32:   [[C6:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 0
  ; MIPS32:   [[SUB:%[0-9]+]]:gprb(s32) = G_SUB [[COPY]], [[C6]]
  ; MIPS32:   [[COPY1:%[0-9]+]]:gprb(s32) = COPY [[SUB]](s32)
  ; MIPS32:   [[COPY2:%[0-9]+]]:gprb(s32) = COPY [[C]](s32)
  ; MIPS32:   [[ICMP:%[0-9]+]]:gprb(s32) = G_ICMP intpred(ugt), [[COPY1]](s32), [[COPY2]]
  ; MIPS32:   [[COPY3:%[0-9]+]]:gprb(s32) = COPY [[ICMP]](s32)
  ; MIPS32:   [[AND:%[0-9]+]]:gprb(s32) = G_AND [[COPY3]], [[C3]]
  ; MIPS32:   G_BRCOND [[AND]](s32), %bb.6
  ; MIPS32: bb.1.entry:
  ; MIPS32:   successors: %bb.2(0x20000000), %bb.3(0x20000000), %bb.4(0x20000000), %bb.5(0x20000000)
  ; MIPS32:   [[JUMP_TABLE:%[0-9]+]]:gprb(p0) = G_JUMP_TABLE %jump-table.0
  ; MIPS32:   G_BRJT [[JUMP_TABLE]](p0), %jump-table.0, [[COPY1]](s32)
  ; MIPS32: bb.2.sw.bb:
  ; MIPS32:   $v0 = COPY [[C4]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.3.sw.bb1:
  ; MIPS32:   $v0 = COPY [[C3]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.4.sw.bb2:
  ; MIPS32:   $v0 = COPY [[C2]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.5.sw.bb3:
  ; MIPS32:   $v0 = COPY [[C1]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.6.sw.default:
  ; MIPS32:   successors: %bb.7(0x80000000)
  ; MIPS32: bb.7.sw.epilog:
  ; MIPS32:   successors: %bb.13(0x40000000), %bb.8(0x40000000)
  ; MIPS32:   [[C7:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 8
  ; MIPS32:   [[SUB1:%[0-9]+]]:gprb(s32) = G_SUB [[COPY]], [[C7]]
  ; MIPS32:   [[COPY4:%[0-9]+]]:gprb(s32) = COPY [[SUB1]](s32)
  ; MIPS32:   [[COPY5:%[0-9]+]]:gprb(s32) = COPY [[C1]](s32)
  ; MIPS32:   [[ICMP1:%[0-9]+]]:gprb(s32) = G_ICMP intpred(ugt), [[COPY4]](s32), [[COPY5]]
  ; MIPS32:   [[C8:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 1
  ; MIPS32:   [[COPY6:%[0-9]+]]:gprb(s32) = COPY [[ICMP1]](s32)
  ; MIPS32:   [[AND1:%[0-9]+]]:gprb(s32) = G_AND [[COPY6]], [[C8]]
  ; MIPS32:   G_BRCOND [[AND1]](s32), %bb.13
  ; MIPS32: bb.8.sw.epilog:
  ; MIPS32:   successors: %bb.9(0x20000000), %bb.10(0x20000000), %bb.11(0x20000000), %bb.12(0x20000000)
  ; MIPS32:   [[JUMP_TABLE1:%[0-9]+]]:gprb(p0) = G_JUMP_TABLE %jump-table.1
  ; MIPS32:   G_BRJT [[JUMP_TABLE1]](p0), %jump-table.1, [[COPY4]](s32)
  ; MIPS32: bb.9.sw.bb4:
  ; MIPS32:   $v0 = COPY [[C4]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.10.sw.bb5:
  ; MIPS32:   $v0 = COPY [[C3]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.11.sw.bb6:
  ; MIPS32:   $v0 = COPY [[C2]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.12.sw.bb7:
  ; MIPS32:   $v0 = COPY [[C1]](s32)
  ; MIPS32:   RetRA implicit $v0
  ; MIPS32: bb.13.sw.default8:
  ; MIPS32:   $v0 = COPY [[C5]](s32)
  ; MIPS32:   RetRA implicit $v0
  bb.1.entry:
    liveins: $a0

    %0:_(s32) = COPY $a0
    %4:_(s32) = G_CONSTANT i32 7
    %8:_(s32) = G_CONSTANT i32 3
    %9:_(s32) = G_CONSTANT i32 2
    %10:_(s32) = G_CONSTANT i32 1
    %11:_(s32) = G_CONSTANT i32 0
    %18:_(s32) = G_CONSTANT i32 -1
    %1:_(s32) = G_CONSTANT i32 0
    %2:_(s32) = G_SUB %0, %1
    %3:_(s32) = COPY %2(s32)
    %5:_(s32) = COPY %4(s32)
    %22:_(s32) = G_ICMP intpred(ugt), %3(s32), %5
    %23:_(s32) = COPY %22(s32)
    %21:_(s32) = G_AND %23, %10
    G_BRCOND %21(s32), %bb.6

  bb.13.entry:
    successors: %bb.2, %bb.3, %bb.4, %bb.5

    %7:_(p0) = G_JUMP_TABLE %jump-table.0
    G_BRJT %7(p0), %jump-table.0, %3(s32)

  bb.2.sw.bb:
    $v0 = COPY %11(s32)
    RetRA implicit $v0

  bb.3.sw.bb1:
    $v0 = COPY %10(s32)
    RetRA implicit $v0

  bb.4.sw.bb2:
    $v0 = COPY %9(s32)
    RetRA implicit $v0

  bb.5.sw.bb3:
    $v0 = COPY %8(s32)
    RetRA implicit $v0

  bb.6.sw.default:

  bb.7.sw.epilog:
    %12:_(s32) = G_CONSTANT i32 8
    %13:_(s32) = G_SUB %0, %12
    %14:_(s32) = COPY %13(s32)
    %15:_(s32) = COPY %8(s32)
    %20:_(s32) = G_ICMP intpred(ugt), %14(s32), %15
    %24:_(s32) = G_CONSTANT i32 1
    %25:_(s32) = COPY %20(s32)
    %19:_(s32) = G_AND %25, %24
    G_BRCOND %19(s32), %bb.12

  bb.14.sw.epilog:
    successors: %bb.8, %bb.9, %bb.10, %bb.11

    %17:_(p0) = G_JUMP_TABLE %jump-table.1
    G_BRJT %17(p0), %jump-table.1, %14(s32)

  bb.8.sw.bb4:
    $v0 = COPY %11(s32)
    RetRA implicit $v0

  bb.9.sw.bb5:
    $v0 = COPY %10(s32)
    RetRA implicit $v0

  bb.10.sw.bb6:
    $v0 = COPY %9(s32)
    RetRA implicit $v0

  bb.11.sw.bb7:
    $v0 = COPY %8(s32)
    RetRA implicit $v0

  bb.12.sw.default8:
    $v0 = COPY %18(s32)
    RetRA implicit $v0

...