llvm/test/CodeGen/PowerPC/ctrloops64.mir

# RUN: llc -ppc-asm-full-reg-names -mtriple=powerpc64le-unknown-linux-gnu \
# RUN:   -run-pass=ppc-ctrloops %s -o - -verify-machineinstrs | FileCheck %s
# RUN: llc -ppc-asm-full-reg-names -mtriple=powerpc64-ibm-aix-xcoff \
# RUN:   -run-pass=ppc-ctrloops %s -o - -verify-machineinstrs | FileCheck %s

---
name:            test_success1
# CHECK: test_success1

tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK: MTCTR8loop
    ; CHECK: BDNZ8
    ; CHECK-NOT: ADDI8
    ; CHECK-NOT: CMPLDI
    ; CHECK-NOT: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    %1:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %1:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_clobber
# CHECK: test_fail_clobber
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8loop
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    INLINEASM &"", sideeffect attdialect, clobber, implicit-def early-clobber $ctr8
    %1:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %1:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_use_in_loop
# CHECK: test_fail_use_in_loop
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8loop
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    %1:g8rc = MFCTR8 implicit $ctr8
    %2:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %2:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_call_in_preheader_after_mtctr
# CHECK: test_fail_call_in_preheader_after_mtctr
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8
    BL8 @test_fail_use_in_loop, csr_ppc64, implicit-def dead $lr8, implicit $rm

  bb.1:

    %1:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %1:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_succ_call_in_preheader_before_mtctr
# CHECK: test_succ_call_in_preheader_before_mtctr
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    BL8 @test_fail_use_in_loop, csr_ppc64, implicit-def dead $lr8, implicit $rm
    ; CHECK: MTCTR8
    ; CHECK: BDNZ8
    ; CHECK-NOT: ADDI8
    ; CHECK-NOT: CMPLDI
    ; CHECK-NOT: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    %1:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %1:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_call_in_loop
# CHECK: test_fail_call_in_loop
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    BL8 @test_fail_use_in_loop, csr_ppc64, implicit-def dead $lr8, implicit $rm
    %1:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %1:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_indirect_call_in_loop
# CHECK: test_fail_indirect_call_in_loop
tracksRegLiveness: true
body:             |
  bb.0.entry:
    liveins: $x3, $x4

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    renamable %1:crrc = CMPLD killed renamable $x3, killed renamable $x4
    renamable %2:crbitrc = COPY %1.sub_gt
    MTLR8 %0:g8rc, implicit-def $lr8
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    BCLRL renamable %2, implicit $lr, implicit $rm
    %3:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %3:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_livein_preheader
# CHECK: test_fail_livein_preheader
tracksRegLiveness: true
body:             |
  bb.0.entry:
    liveins: $ctr8

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8loop
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    %1:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %1:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_def_preheader
# CHECK: test_fail_def_preheader
tracksRegLiveness: true
body:             |
  bb.0.entry:

    INLINEASM &"", sideeffect attdialect, clobber, implicit-def early-clobber $ctr8
    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8loop
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    %1:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %1:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_success_only_use_preheader
# CHECK: test_success_only_use_preheader
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = MFCTR8 implicit $ctr8
    %1:g8rc = LI8 2048
    ; CHECK: MTCTR8loop
    ; CHECK: BDNZ8
    ; CHECK-NOT: ADDI8
    ; CHECK-NOT: CMPLDI
    ; CHECK-NOT: BC
    MTCTR8loop killed %1:g8rc, implicit-def dead $ctr8

  bb.1:

    %2:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %2:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_use_after_mtctr
# CHECK: test_fail_use_after_mtctr
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8loop
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8
    %1:g8rc = MFCTR8 implicit $ctr8

  bb.1:

    %2:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %2:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_def_after_mtctr
# CHECK: test_fail_def_after_mtctr
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK-NOT: MTCTR8loop
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8
    INLINEASM &"", sideeffect attdialect, clobber, implicit-def early-clobber $ctr8

  bb.1:

    %2:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %2:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_success_def_after_loop
# CHECK: test_success_def_after_loop
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    ; CHECK: MTCTR8loop
    ; CHECK: BDNZ8
    ; CHECK-NOT: ADDI8
    ; CHECK-NOT: CMPLDI
    ; CHECK-NOT: BC
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8

  bb.1:

    %2:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %2:crbitrc, %bb.1
    B %bb.2

  bb.2:
    INLINEASM &"", sideeffect attdialect, clobber, implicit-def early-clobber $ctr8

    BLR8 implicit $lr8, implicit $rm
...
---
name:            test_fail_dead_def_in_preheader
# CHECK: test_fail_dead_def_in_preheader
tracksRegLiveness: true
body:             |
  bb.0.entry:

    %0:g8rc = LI8 2048
    %1:g8rc = LI8 1024
    MTCTR8loop killed %0:g8rc, implicit-def dead $ctr8
    MTCTR8 killed %1:g8rc, implicit-def dead $ctr8
    ; CHECK-NOT: MTCTR8loop
    ; CHECK-NOT: BDNZ8
    ; CHECK: ADDI8
    ; CHECK: CMPLDI
    ; CHECK: BC

  bb.1:

    %2:crbitrc = DecreaseCTR8loop 1, implicit-def dead $ctr8, implicit $ctr8
    BC killed %2:crbitrc, %bb.1
    B %bb.2

  bb.2:

    BLR8 implicit $lr8, implicit $rm
...