llvm/test/CodeGen/Mips/GlobalISel/legalizer/ctlz.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=legalizer -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32
---
name:            ctlz_i32
alignment:       4
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0

    ; MIPS32-LABEL: name: ctlz_i32
    ; MIPS32: liveins: $a0
    ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
    ; MIPS32: [[CTLZ:%[0-9]+]]:_(s32) = G_CTLZ [[COPY]](s32)
    ; MIPS32: $v0 = COPY [[CTLZ]](s32)
    ; MIPS32: RetRA implicit $v0
    %0:_(s32) = COPY $a0
    %1:_(s32) = G_CTLZ %0(s32)
    $v0 = COPY %1(s32)
    RetRA implicit $v0

...
---
name:            ctlz_i64
alignment:       4
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0, $a1

    ; MIPS32-LABEL: name: ctlz_i64
    ; MIPS32: liveins: $a0, $a1
    ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
    ; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
    ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
    ; MIPS32: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[COPY1]](s32), [[C]]
    ; MIPS32: [[CTLZ:%[0-9]+]]:_(s32) = G_CTLZ [[COPY]](s32)
    ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 32
    ; MIPS32: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[CTLZ]], [[C1]]
    ; MIPS32: [[CTLZ1:%[0-9]+]]:_(s32) = G_CTLZ [[COPY1]](s32)
    ; MIPS32: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
    ; MIPS32: [[AND:%[0-9]+]]:_(s32) = G_AND [[ICMP]], [[C2]]
    ; MIPS32: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[AND]](s32), [[ADD]], [[CTLZ1]]
    ; MIPS32: $v0 = COPY [[SELECT]](s32)
    ; MIPS32: $v1 = COPY [[C]](s32)
    ; MIPS32: RetRA implicit $v0, implicit $v1
    %1:_(s32) = COPY $a0
    %2:_(s32) = COPY $a1
    %0:_(s64) = G_MERGE_VALUES %1(s32), %2(s32)
    %3:_(s64) = G_CTLZ %0(s64)
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %3(s64)
    $v0 = COPY %4(s32)
    $v1 = COPY %5(s32)
    RetRA implicit $v0, implicit $v1

...