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

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=mipsel-linux-gnu -run-pass=legalizer -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32
# RUN: llc -mtriple=mipsel-linux-gnu -run-pass=legalizer -mattr=+mips32r2 -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32R2
--- |

  define void @bswap_i32() { entry: ret void }
  define void @bswap_i64() { entry: ret void }

...
---
name:            bswap_i32
alignment:       4
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0

    ; MIPS32-LABEL: name: bswap_i32
    ; MIPS32: liveins: $a0
    ; MIPS32: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
    ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
    ; MIPS32: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY]], [[C]](s32)
    ; MIPS32: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C]](s32)
    ; MIPS32: [[OR:%[0-9]+]]:_(s32) = G_OR [[LSHR]], [[SHL]]
    ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 65280
    ; MIPS32: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
    ; MIPS32: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[C1]]
    ; MIPS32: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND]], [[C2]](s32)
    ; MIPS32: [[OR1:%[0-9]+]]:_(s32) = G_OR [[OR]], [[SHL1]]
    ; MIPS32: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C2]](s32)
    ; MIPS32: [[AND1:%[0-9]+]]:_(s32) = G_AND [[LSHR1]], [[C1]]
    ; MIPS32: [[OR2:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[AND1]]
    ; MIPS32: $v0 = COPY [[OR2]](s32)
    ; MIPS32: RetRA implicit $v0
    ; MIPS32R2-LABEL: name: bswap_i32
    ; MIPS32R2: liveins: $a0
    ; MIPS32R2: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
    ; MIPS32R2: [[BSWAP:%[0-9]+]]:_(s32) = G_BSWAP [[COPY]]
    ; MIPS32R2: $v0 = COPY [[BSWAP]](s32)
    ; MIPS32R2: RetRA implicit $v0
    %0:_(s32) = COPY $a0
    %1:_(s32) = G_BSWAP %0
    $v0 = COPY %1(s32)
    RetRA implicit $v0

...
---
name:            bswap_i64
alignment:       4
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0, $a1

    ; MIPS32-LABEL: name: bswap_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 24
    ; MIPS32: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY1]], [[C]](s32)
    ; MIPS32: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY1]], [[C]](s32)
    ; MIPS32: [[OR:%[0-9]+]]:_(s32) = G_OR [[LSHR]], [[SHL]]
    ; MIPS32: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 65280
    ; MIPS32: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
    ; MIPS32: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C1]]
    ; MIPS32: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND]], [[C2]](s32)
    ; MIPS32: [[OR1:%[0-9]+]]:_(s32) = G_OR [[OR]], [[SHL1]]
    ; MIPS32: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[COPY1]], [[C2]](s32)
    ; MIPS32: [[AND1:%[0-9]+]]:_(s32) = G_AND [[LSHR1]], [[C1]]
    ; MIPS32: [[OR2:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[AND1]]
    ; MIPS32: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[COPY]], [[C]](s32)
    ; MIPS32: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C]](s32)
    ; MIPS32: [[OR3:%[0-9]+]]:_(s32) = G_OR [[LSHR2]], [[SHL2]]
    ; MIPS32: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY]], [[C1]]
    ; MIPS32: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND2]], [[C2]](s32)
    ; MIPS32: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR3]], [[SHL3]]
    ; MIPS32: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C2]](s32)
    ; MIPS32: [[AND3:%[0-9]+]]:_(s32) = G_AND [[LSHR3]], [[C1]]
    ; MIPS32: [[OR5:%[0-9]+]]:_(s32) = G_OR [[OR4]], [[AND3]]
    ; MIPS32: $v0 = COPY [[OR2]](s32)
    ; MIPS32: $v1 = COPY [[OR5]](s32)
    ; MIPS32: RetRA implicit $v0, implicit $v1
    ; MIPS32R2-LABEL: name: bswap_i64
    ; MIPS32R2: liveins: $a0, $a1
    ; MIPS32R2: [[COPY:%[0-9]+]]:_(s32) = COPY $a0
    ; MIPS32R2: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
    ; MIPS32R2: [[BSWAP:%[0-9]+]]:_(s32) = G_BSWAP [[COPY1]]
    ; MIPS32R2: [[BSWAP1:%[0-9]+]]:_(s32) = G_BSWAP [[COPY]]
    ; MIPS32R2: $v0 = COPY [[BSWAP]](s32)
    ; MIPS32R2: $v1 = COPY [[BSWAP1]](s32)
    ; MIPS32R2: 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_BSWAP %0
    %4:_(s32), %5:_(s32) = G_UNMERGE_VALUES %3(s64)
    $v0 = COPY %4(s32)
    $v1 = COPY %5(s32)
    RetRA implicit $v0, implicit $v1

...