movc-peephole.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -run-pass=peephole-opt %s -o - -verify-machineinstrs | FileCheck %s

# Make sure the MOVCC to conditional instruction peephole doesn't change the
# register class to one that's invalid.

--- |
  target triple = "armv7-unknown-unknown"
  define i32 @test(i32 %x, i32 %y) {
    ret i32 undef
  }
...
---
name: test
tracksRegLiveness: true
body: |
  bb.0 (%ir-block.0):
    liveins: $r0, $r1
    ; CHECK-LABEL: name: test
    ; CHECK: liveins: $r0, $r1
    ; CHECK: [[COPY:%[0-9]+]]:gpr = COPY $r0
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr = COPY $r1
    ; CHECK-NEXT: [[MOVsi:%[0-9]+]]:gpr = MOVsi [[COPY1]], 27, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: [[ORRrsi:%[0-9]+]]:gpr = ORRrsi [[MOVsi]], [[COPY1]], 234, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: [[MOVsi1:%[0-9]+]]:gpr = MOVsi [[COPY1]], 155, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: [[ORRrsi1:%[0-9]+]]:gprnopc = ORRrsi killed [[MOVsi1]], killed [[MOVsi]], 106, 14 /* CC::al */, $noreg, $noreg
    ; CHECK-NEXT: TSTri [[COPY1]], 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    ; CHECK-NEXT: [[UXTH:%[0-9]+]]:gprnopc = UXTH killed [[ORRrsi1]], 0, 0 /* CC::eq */, $cpsr, implicit [[ORRrsi]](tied-def 0)
    ; CHECK-NEXT: $r0 = COPY killed [[UXTH]]
    ; CHECK-NEXT: BX_RET 14 /* CC::al */, $noreg, implicit $r0
    %0:gpr = COPY $r0
    %1:gpr = COPY $r1
    %2:gpr = MOVsi %1:gpr, 27, 14, $noreg, $noreg
    %3:gpr = ORRrsi %2:gpr, %1:gpr, 234, 14, $noreg, $noreg
    %4:gpr = MOVsi %1:gpr, 155, 14, $noreg, $noreg
    %5:gprnopc = ORRrsi killed %4:gpr, killed %2:gpr, 106, 14, $noreg, $noreg
    %6:gprnopc = UXTH killed %5:gprnopc, 0, 14, $noreg
    TSTri %1:gpr, 1, 14, $noreg, implicit-def $cpsr
    %7:gpr = MOVCCr %3:gpr, killed %6:gprnopc, 0, $cpsr
    $r0 = COPY killed %7
    BX_RET 14, $noreg, implicit $r0