test/CodeGen/X86/GlobalISel/legalize-mul-scalar.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=x86_64-linux-gnu -run-pass=legalizer %s -o - | FileCheck %s --check-prefixes=CHECK,X64
# RUN: llc -O0 -mtriple=i386-linux-gnu  -run-pass=legalizer -global-isel-abort=2 -pass-remarks-missed='gisel*'  %s 2>%t -o - | FileCheck %s --check-prefixes=CHECK,X86
# RUN: FileCheck -check-prefix=ERR32  %s < %t

# ERR32: remark: <unknown>:0:0: unable to legalize instruction: %14:_(s32) = G_UMULH %7:_, %9:_ (in function: test_mul_i42)
# ERR32: remark: <unknown>:0:0: unable to legalize instruction: %10:_(s32) = G_UMULH %3:_, %5:_ (in function: test_mul_i64)

--- |
  define void @test_mul_i1() { ret void }

  define i8 @test_mul_i8(i8 %arg1, i8 %arg2) {
    %ret = mul i8 %arg1, %arg2
    ret i8 %ret
  }

  define i16 @test_mul_i16(i16 %arg1, i16 %arg2) {
    %ret = mul i16 %arg1, %arg2
    ret i16 %ret
  }

  define i27 @test_mul_i27(i27 %arg1, i27 %arg2) {
    %ret = mul i27 %arg1, %arg2
    ret i27 %ret
  }

  define i32 @test_mul_i32(i32 %arg1, i32 %arg2) {
    %ret = mul i32 %arg1, %arg2
    ret i32 %ret
  }

  define i42 @test_mul_i42(i42 %arg1, i42 %arg2) {
    %ret = mul i42 %arg1, %arg2
    ret i42 %ret
  }

  define i64 @test_mul_i64(i64 %arg1, i64 %arg2) {
    %ret = mul i64 %arg1, %arg2
    ret i64 %ret
  }
...
---
name:            test_mul_i1
alignment:       16
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _, preferred-register: '' }
  - { id: 1, class: _, preferred-register: '' }
  - { id: 2, class: _, preferred-register: '' }
body:             |
  bb.1 (%ir-block.0):

    ; CHECK-LABEL: name: test_mul_i1
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $edx
    ; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
    ; CHECK-NEXT: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
    ; CHECK-NEXT: [[MUL:%[0-9]+]]:_(s8) = G_MUL [[TRUNC]], [[TRUNC1]]
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:_(p0) = G_IMPLICIT_DEF
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s8) = G_CONSTANT i8 1
    ; CHECK-NEXT: [[AND:%[0-9]+]]:_(s8) = G_AND [[MUL]], [[C]]
    ; CHECK-NEXT: G_STORE [[AND]](s8), [[DEF]](p0) :: (store (s1))
    ; CHECK-NEXT: RET 0
    %0(s32) = COPY $edx
    %1(s1) = G_TRUNC %0(s32)
    %2(s1) = G_MUL %1, %1
    %3:_(p0) = G_IMPLICIT_DEF
    G_STORE %2, %3 :: (store (s1))
    RET 0
...
---
name:            test_mul_i8
alignment:       16
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: $edi, $esi

    ; CHECK-LABEL: name: test_mul_i8
    ; CHECK: liveins: $edi, $esi
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s8) = COPY $dl
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s8) = COPY $sil
    ; CHECK-NEXT: [[MUL:%[0-9]+]]:_(s8) = G_MUL [[COPY]], [[COPY1]]
    ; CHECK-NEXT: $al = COPY [[MUL]](s8)
    ; CHECK-NEXT: RET 0, implicit $al
    %0(s8) = COPY $dl
    %1(s8) = COPY $sil
    %2(s8) = G_MUL %0, %1
    $al = COPY %2(s8)
    RET 0, implicit $al
...
---
name:            test_mul_i16
alignment:       16
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: $edi, $esi

    ; CHECK-LABEL: name: test_mul_i16
    ; CHECK: liveins: $edi, $esi
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s16) = COPY $di
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s16) = COPY $si
    ; CHECK-NEXT: [[MUL:%[0-9]+]]:_(s16) = G_MUL [[COPY]], [[COPY1]]
    ; CHECK-NEXT: $ax = COPY [[MUL]](s16)
    ; CHECK-NEXT: RET 0, implicit $ax
    %0(s16) = COPY $di
    %1(s16) = COPY $si
    %2(s16) = G_MUL %0, %1
    $ax = COPY %2(s16)
    RET 0, implicit $ax
...
---
name:            test_mul_i27
alignment:       16
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):

    ;
    ;
    ; CHECK-LABEL: name: test_mul_i27
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $edx
    ; CHECK-NEXT: [[MUL:%[0-9]+]]:_(s32) = G_MUL [[COPY]], [[COPY]]
    ; CHECK-NEXT: $eax = COPY [[MUL]](s32)
    ; CHECK-NEXT: RET 0
    %0(s32) = COPY $edx
    %1(s27) = G_TRUNC %0(s32)
    %2(s27) = G_MUL %1, %1
    %3:_(s32) = G_ANYEXT %2
    $eax = COPY %3
    RET 0
...
---

name:            test_mul_i32
alignment:       16
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: $edi, $esi

    ; CHECK-LABEL: name: test_mul_i32
    ; CHECK: liveins: $edi, $esi
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $edi
    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $esi
    ; CHECK-NEXT: [[MUL:%[0-9]+]]:_(s32) = G_MUL [[COPY]], [[COPY1]]
    ; CHECK-NEXT: $eax = COPY [[MUL]](s32)
    ; CHECK-NEXT: RET 0, implicit $eax
    %0(s32) = COPY $edi
    %1(s32) = COPY $esi
    %2(s32) = G_MUL %0, %1
    $eax = COPY %2(s32)
    RET 0, implicit $eax
...
---
name:            test_mul_i42
alignment:       16
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: $rdi, $rsi

    ; X64-LABEL: name: test_mul_i42
    ; X64: liveins: $rdi, $rsi
    ; X64-NEXT: {{  $}}
    ; X64-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $rdx
    ; X64-NEXT: [[MUL:%[0-9]+]]:_(s64) = G_MUL [[COPY]], [[COPY]]
    ; X64-NEXT: $rax = COPY [[MUL]](s64)
    ; X64-NEXT: RET 0
    ; X86-LABEL: name: test_mul_i42
    ; X86: liveins: $rdi, $rsi
    ; X86-NEXT: {{  $}}
    ; X86-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $rdx
    ; X86-NEXT: [[TRUNC:%[0-9]+]]:_(s42) = G_TRUNC [[COPY]](s64)
    ; X86-NEXT: [[ANYEXT:%[0-9]+]]:_(s64) = G_ANYEXT [[TRUNC]](s42)
    ; X86-NEXT: [[ANYEXT1:%[0-9]+]]:_(s64) = G_ANYEXT [[TRUNC]](s42)
    ; X86-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ANYEXT]](s64)
    ; X86-NEXT: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[ANYEXT1]](s64)
    ; X86-NEXT: [[MUL:%[0-9]+]]:_(s32) = G_MUL [[UV]], [[UV2]]
    ; X86-NEXT: [[MUL1:%[0-9]+]]:_(s32) = G_MUL [[UV1]], [[UV2]]
    ; X86-NEXT: [[MUL2:%[0-9]+]]:_(s32) = G_MUL [[UV]], [[UV3]]
    ; X86-NEXT: [[UMULH:%[0-9]+]]:_(s32) = G_UMULH [[UV]], [[UV2]]
    ; X86-NEXT: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[MUL1]], [[MUL2]]
    ; X86-NEXT: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[ADD]], [[UMULH]]
    ; X86-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[MUL]](s32), [[ADD1]](s32)
    ; X86-NEXT: [[TRUNC1:%[0-9]+]]:_(s42) = G_TRUNC [[MV]](s64)
    ; X86-NEXT: [[ANYEXT2:%[0-9]+]]:_(s64) = G_ANYEXT [[TRUNC1]](s42)
    ; X86-NEXT: $rax = COPY [[ANYEXT2]](s64)
    ; X86-NEXT: RET 0
    %0(s64) = COPY $rdx
    %1(s42) = G_TRUNC %0(s64)
    %2(s42) = G_MUL %1, %1
    %3:_(s64) = G_ANYEXT %2
    $rax = COPY %3
    RET 0
...
---
name:            test_mul_i64
alignment:       16
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: $rdi, $rsi

    ; X64-LABEL: name: test_mul_i64
    ; X64: liveins: $rdi, $rsi
    ; X64-NEXT: {{  $}}
    ; X64-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $rdi
    ; X64-NEXT: [[COPY1:%[0-9]+]]:_(s64) = COPY $rsi
    ; X64-NEXT: [[MUL:%[0-9]+]]:_(s64) = G_MUL [[COPY]], [[COPY1]]
    ; X64-NEXT: $rax = COPY [[MUL]](s64)
    ; X64-NEXT: RET 0, implicit $rax
    ; X86-LABEL: name: test_mul_i64
    ; X86: liveins: $rdi, $rsi
    ; X86-NEXT: {{  $}}
    ; X86-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $rdi
    ; X86-NEXT: [[COPY1:%[0-9]+]]:_(s64) = COPY $rsi
    ; X86-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
    ; X86-NEXT: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](s64)
    ; X86-NEXT: [[MUL:%[0-9]+]]:_(s32) = G_MUL [[UV]], [[UV2]]
    ; X86-NEXT: [[MUL1:%[0-9]+]]:_(s32) = G_MUL [[UV1]], [[UV2]]
    ; X86-NEXT: [[MUL2:%[0-9]+]]:_(s32) = G_MUL [[UV]], [[UV3]]
    ; X86-NEXT: [[UMULH:%[0-9]+]]:_(s32) = G_UMULH [[UV]], [[UV2]]
    ; X86-NEXT: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[MUL1]], [[MUL2]]
    ; X86-NEXT: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[ADD]], [[UMULH]]
    ; X86-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[MUL]](s32), [[ADD1]](s32)
    ; X86-NEXT: $rax = COPY [[MV]](s64)
    ; X86-NEXT: RET 0, implicit $rax
    %0(s64) = COPY $rdi
    %1(s64) = COPY $rsi
    %2(s64) = G_MUL %0, %1
    $rax = COPY %2(s64)
    RET 0, implicit $rax
...