src/llvm-project/llvm/test/tools/llvm-reduce/mir/preserve-jump-table-info.mir

# REQUIRES: aarch64-registered-target
# FIXME: Fails with -abort-on-invalid-reduction
# RUN: llvm-reduce -simplify-mir --delta-passes=instructions -mtriple=aarch64-- --test FileCheck --test-arg --check-prefix=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t 2> %t.log
# RUN: FileCheck --match-full-lines --check-prefix=RESULT %s < %t

# Check that jump table info is preserved through cloning

# CHECK-INTERESTINGNESS: MOVi32imm

# RESULT: jumpTable:
# RESULT-NEXT: kind:            label-difference32
# RESULT-NEXT: entries:
# RESULT-NEXT: - id:              0
# RESULT-NEXT: blocks:          [ '%bb.9', '%bb.5', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
# RESULT-NEXT:                    '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.6', '%bb.2',
# RESULT-NEXT:                    '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
# RESULT-NEXT:                    '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
# RESULT-NEXT:                    '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
# RESULT-NEXT:                    '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.7', '%bb.2',
# RESULT-NEXT:                    '%bb.2', '%bb.2', '%bb.2', '%bb.7' ]

---
name:            widget
tracksRegLiveness: true
jumpTable:
  kind:            label-difference32
  entries:
    - id:              0
      blocks:          [ '%bb.9', '%bb.5', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
                         '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.6', '%bb.2',
                         '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
                         '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
                         '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.2',
                         '%bb.2', '%bb.2', '%bb.2', '%bb.2', '%bb.7', '%bb.2',
                         '%bb.2', '%bb.2', '%bb.2', '%bb.7' ]
body:             |
  bb.0:
    liveins: $w0, $w1, $x2, $x3, $x4, $w5, $w6

    %0:gpr32 = COPY $w6
    %1:gpr32 = COPY $w5
    %2:gpr64common = COPY $x4
    %3:gpr64 = COPY $x3
    %4:gpr64common = COPY $x2
    %5:gpr32common = COPY $w1
    %6:gpr32 = COPY $w0
    undef %7.sub_32:gpr64 = ORRWrs $wzr, %5, 0, implicit-def %7
    %8:gpr64common = MOVaddrJT target-flags(aarch64-page) %jump-table.0, target-flags(aarch64-pageoff, aarch64-nc) %jump-table.0
    %9:gpr32 = MOVi32imm 1
    undef %10.sub_32:gpr64 = IMPLICIT_DEF

  bb.1:

  bb.2:
    successors: %bb.3(0x0fbefbf0), %bb.4(0x70410410)

    dead $wzr = SUBSWri %5, 39, 0, implicit-def $nzcv
    Bcc 8, %bb.3, implicit killed $nzcv
    B %bb.4

  bb.3:
    successors: %bb.11(0x00000000), %bb.2(0x80000000)

    dead $wzr = SUBSWri %5, 64, 0, implicit-def $nzcv
    Bcc 0, %bb.11, implicit killed $nzcv
    B %bb.2

  bb.4:
    successors: %bb.9(0x01288b01), %bb.5(0x01288b01), %bb.2(0x11f46a91), %bb.6(0x23e8d524), %bb.7(0x47d1aa49)

    early-clobber %11:gpr64, dead early-clobber %12:gpr64sp = JumpTableDest32 %8, %7, %jump-table.0
    JUMP_TABLE_DEBUG_INFO 0
    BR %11

  bb.5:
    B %bb.8

  bb.6:
    B %bb.2

  bb.7:
    B %bb.2

  bb.8:
    B %bb.8

  bb.9:
    TBZW %0, 0, %bb.1
    B %bb.10

  bb.10:
    B %bb.1

  bb.11:
    BRK 1

...