test/CodeGen/Thumb/peephole-mi.mir

# RUN: llc -mtriple thumbv8m.base-none-eabi -run-pass=peephole-opt -verify-machineinstrs -o - %s | FileCheck %s
--- |
  target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
  target triple = "thumbv8m.base-none-none-eabi"

  define i32 @test_adc(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_adc_mov(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_sbc(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_rsb(i32 %a) { ret i32 %a }
  define i32 @test_and(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_orr(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_eor(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_bic(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_mvn(i32 %a) { ret i32 %a }
  define i32 @test_asrrr(i32 %a, i32 %b) { ret i32 %a }
  define i32 @test_asrri(i32 %a) { ret i32 %a }
  define i32 @test_ror(i32 %a, i32 %b) { ret i32 %a }

...
---
name:            test_adc
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_adc
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tADDrr:%[0-9]+]]:tgpr, $cpsr = tADDrr [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   [[tADC:%[0-9]+]]:tgpr, $cpsr = tADC [[COPY1]], [[COPY]], 14, $noreg, implicit $cpsr
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %3:tgpr, $cpsr = tADDrr %0, %1, 14, $noreg
    %2:tgpr, dead $cpsr = tADC %0, %1, 14, $noreg, implicit $cpsr
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_adc_mov
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_adc_mov
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tADDrr:%[0-9]+]]:tgpr, $cpsr = tADDrr [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   [[tADC:%[0-9]+]]:tgpr, dead $cpsr = tADC [[COPY1]], [[COPY]], 14, $noreg, implicit $cpsr
  ; CHECK:   [[tMOVi8_:%[0-9]+]]:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
  ; CHECK:   tCMPi8 [[tADC]], 0, 14, $noreg, implicit-def $cpsr
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %3:tgpr, $cpsr = tADDrr %0, %1, 14, $noreg
    %2:tgpr, dead $cpsr = tADC %0, %1, 14, $noreg, implicit $cpsr
    %5:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_sbc
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_sbc
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tADDrr:%[0-9]+]]:tgpr, $cpsr = tADDrr [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   [[tSBC:%[0-9]+]]:tgpr, $cpsr = tSBC [[COPY1]], [[COPY]], 14, $noreg, implicit $cpsr
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %3:tgpr, $cpsr = tADDrr %0, %1, 14, $noreg
    %2:tgpr, dead $cpsr = tSBC %0, %1, 14, $noreg, implicit $cpsr
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_rsb
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
body:             |
  ; CHECK-LABEL: name: test_rsb
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tRSB:%[0-9]+]]:tgpr, $cpsr = tRSB [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %0:tgpr = COPY $r0
    %1:tgpr, dead $cpsr = tRSB %0, 14, $noreg
    tCMPi8 %1, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %1
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_and
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_and
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tAND:%[0-9]+]]:tgpr, $cpsr = tAND [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %2:tgpr, dead $cpsr = tAND %0, %1, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_orr
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_orr
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tORR:%[0-9]+]]:tgpr, $cpsr = tORR [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %2:tgpr, dead $cpsr = tORR %0, %1, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_eor
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_eor
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tEOR:%[0-9]+]]:tgpr, $cpsr = tEOR [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %2:tgpr, dead $cpsr = tEOR %0, %1, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_bic
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_bic
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tBIC:%[0-9]+]]:tgpr, $cpsr = tBIC [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %2:tgpr, dead $cpsr = tBIC %0, %1, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_mvn
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
body:             |
  ; CHECK-LABEL: name: test_mvn
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tMVN:%[0-9]+]]:tgpr, $cpsr = tMVN [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %0:tgpr = COPY $r0
    %1:tgpr, dead $cpsr = tMVN %0, 14, $noreg
    tCMPi8 %1, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %1
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_asrrr
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_asrrr
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tASRrr:%[0-9]+]]:tgpr, $cpsr = tASRrr [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %2:tgpr, dead $cpsr = tASRrr %0, %1, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_asrri
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
body:             |
  ; CHECK-LABEL: name: test_asrri
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tASRri:%[0-9]+]]:tgpr, $cpsr = tASRri [[COPY]], 1, 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %0:tgpr = COPY $r0
    %2:tgpr, dead $cpsr = tASRri %0, 1, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...
---
name:            test_ror
liveins:
  - { reg: '$r0', virtual-reg: '%0' }
  - { reg: '$r1', virtual-reg: '%1' }
body:             |
  ; CHECK-LABEL: name: test_ror
  ; CHECK:   [[COPY:%[0-9]+]]:tgpr = COPY $r1
  ; CHECK:   [[COPY1:%[0-9]+]]:tgpr = COPY $r0
  ; CHECK:   [[tROR:%[0-9]+]]:tgpr, $cpsr = tROR [[COPY1]], [[COPY]], 14, $noreg
  ; CHECK:   tBcc %bb.2, 1, $cpsr
  ; CHECK:   tB %bb.1, 14, $noreg
  bb.0:
    successors: %bb.2(0x40000000), %bb.1(0x40000000)
    liveins: $r0, $r1

    %1:tgpr = COPY $r1
    %0:tgpr = COPY $r0
    %2:tgpr, dead $cpsr = tROR %0, %1, 14, $noreg
    tCMPi8 %2, 0, 14, $noreg, implicit-def $cpsr
    tBcc %bb.2, 1, $cpsr
    tB %bb.1, 14, $noreg

  bb.1:
    $r0 = COPY %0
    tBX_RET 14, $noreg, implicit $r0

  bb.2:
    %4:tgpr, dead $cpsr = tMOVi8 0, 14, $noreg
    $r0 = COPY %2
    tBX_RET 14, $noreg, implicit $r0
...