llvm/llvm/test/CodeGen/Mips/GlobalISel/instruction-select/mul.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32
--- |

  define void @mul_i32(i32 %x, i32 %y) {entry: ret void}
  define void @umul_with_overflow(i32 %lhs, i32 %rhs, ptr %pmul, ptr %pcarry_flag) { ret void }

...
---
name:            mul_i32
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.0.entry:
    liveins: $a0, $a1

    ; MIPS32-LABEL: name: mul_i32
    ; MIPS32: liveins: $a0, $a1
    ; MIPS32: [[COPY:%[0-9]+]]:gpr32 = COPY $a0
    ; MIPS32: [[COPY1:%[0-9]+]]:gpr32 = COPY $a1
    ; MIPS32: [[MUL:%[0-9]+]]:gpr32 = MUL [[COPY]], [[COPY1]], implicit-def dead $hi0, implicit-def dead $lo0
    ; MIPS32: $v0 = COPY [[MUL]]
    ; MIPS32: RetRA implicit $v0
    %0:gprb(s32) = COPY $a0
    %1:gprb(s32) = COPY $a1
    %2:gprb(s32) = G_MUL %0, %1
    $v0 = COPY %2(s32)
    RetRA implicit $v0

...
---
name:            umul_with_overflow
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1 (%ir-block.0):
    liveins: $a0, $a1, $a2, $a3

    ; MIPS32-LABEL: name: umul_with_overflow
    ; MIPS32: liveins: $a0, $a1, $a2, $a3
    ; MIPS32: [[COPY:%[0-9]+]]:gpr32 = COPY $a0
    ; MIPS32: [[COPY1:%[0-9]+]]:gpr32 = COPY $a1
    ; MIPS32: [[COPY2:%[0-9]+]]:gpr32 = COPY $a2
    ; MIPS32: [[COPY3:%[0-9]+]]:gpr32 = COPY $a3
    ; MIPS32: [[MUL:%[0-9]+]]:gpr32 = MUL [[COPY]], [[COPY1]], implicit-def dead $hi0, implicit-def dead $lo0
    ; MIPS32: [[PseudoMULTu:%[0-9]+]]:acc64 = PseudoMULTu [[COPY]], [[COPY1]]
    ; MIPS32: [[PseudoMFHI:%[0-9]+]]:gpr32 = PseudoMFHI [[PseudoMULTu]]
    ; MIPS32: [[SLTu:%[0-9]+]]:gpr32 = SLTu $zero, [[PseudoMFHI]]
    ; MIPS32: [[ANDi:%[0-9]+]]:gpr32 = ANDi [[SLTu]], 1
    ; MIPS32: SB [[ANDi]], [[COPY3]], 0 :: (store (s8) into %ir.pcarry_flag)
    ; MIPS32: SW [[MUL]], [[COPY2]], 0 :: (store (s32) into %ir.pmul)
    ; MIPS32: RetRA
    %0:gprb(s32) = COPY $a0
    %1:gprb(s32) = COPY $a1
    %2:gprb(p0) = COPY $a2
    %3:gprb(p0) = COPY $a3
    %4:gprb(s32) = G_MUL %0, %1
    %7:gprb(s32) = G_UMULH %0, %1
    %8:gprb(s32) = G_CONSTANT i32 0
    %9:gprb(s32) = G_ICMP intpred(ne), %7(s32), %8
    %10:gprb(s32) = G_CONSTANT i32 1
    %11:gprb(s32) = COPY %9(s32)
    %6:gprb(s32) = G_AND %11, %10
    G_STORE %6(s32), %3(p0) :: (store (s8) into %ir.pcarry_flag)
    G_STORE %4(s32), %2(p0) :: (store (s32) into %ir.pmul)
    RetRA

...