# RUN: llc -mtriple=x86_64-linux-gnu -global-isel                       -run-pass=regbankselect %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=FAST
# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -regbankselect-greedy -run-pass=regbankselect %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=GREEDY

--- |
  define i8 @test_add_i8(i8 %arg1, i8 %arg2) {
    %ret = add i8 %arg1, %arg2
    ret i8 %ret
  }

  define i16 @test_add_i16(i16 %arg1, i16 %arg2) {
    %ret = add i16 %arg1, %arg2
    ret i16 %ret
  }

  define i32 @test_add_i32(i32 %arg1, i32 %arg2) {
    %ret = add i32 %arg1, %arg2
    ret i32 %ret
  }

  define i64 @test_add_i64(i64 %arg1, i64 %arg2) {
    %ret = add i64 %arg1, %arg2
    ret i64 %ret
  }

  define void @test_mul_gpr() {
    ret void
  }

  define float @test_add_float(float %arg1, float %arg2) {
    %ret = fadd float %arg1, %arg2
    ret float %ret
  }

  define double @test_add_double(double %arg1, double %arg2) {
    %ret = fadd double %arg1, %arg2
    ret double %ret
  }

  define <4 x i32> @test_add_v4i32(<4 x i32> %arg1, <4 x i32> %arg2) {
    %ret = add <4 x i32> %arg1, %arg2
    ret <4 x i32> %ret
  }

  define <4 x float> @test_add_v4f32(<4 x float> %arg1, <4 x float> %arg2) {
    %ret = fadd <4 x float> %arg1, %arg2
    ret <4 x float> %ret
  }

  define i8 @test_load_i8(i8* %p1) {
    %r = load i8, i8* %p1
    ret i8 %r
  }

  define i16 @test_load_i16(i16* %p1) {
    %r = load i16, i16* %p1
    ret i16 %r
  }

  define i32 @test_load_i32(i32* %p1) {
    %r = load i32, i32* %p1
    ret i32 %r
  }

  define i64 @test_load_i64(i64* %p1) {
    %r = load i64, i64* %p1
    ret i64 %r
  }

  define float @test_load_float(float* %p1) {
    %r = load float, float* %p1
    ret float %r
  }

  define double @test_load_double(double* %p1) {
    %r = load double, double* %p1
    ret double %r
  }

  define <4 x i32> @test_load_v4i32(<4 x i32>* %p1) {
    %r = load <4 x i32>, <4 x i32>* %p1, align 16
    ret <4 x i32> %r
  }

  define i32* @test_store_i32(i32 %val, i32* %p1) {
    store i32 %val, i32* %p1
    ret i32* %p1
  }

  define i64* @test_store_i64(i64 %val, i64* %p1) {
    store i64 %val, i64* %p1
    ret i64* %p1
  }

  define float* @test_store_float(float %val, float* %p1) {
    store float %val, float* %p1
    ret float* %p1
  }

  define double* @test_store_double(double %val, double* %p1) {
    store double %val, double* %p1
    ret double* %p1
  }

  define void @constInt_check() {
    ret void
  }

  define void @trunc_check() {
    ret void
  }

  define void @test_gep() {
    %p1 = getelementptr i32, i32* undef, i32 5
    %p2 = getelementptr i32, i32* undef, i64 5
    ret void
  }

  define i1 @test_icmp_eq_i8(i8 %a, i8 %b) {
    %r = icmp eq i8 %a, %b
    ret i1 %r
  }

  define i1 @test_icmp_eq_i16(i16 %a, i16 %b) {
    %r = icmp eq i16 %a, %b
    ret i1 %r
  }

  define i1 @test_icmp_eq_i32(i32 %a, i32 %b) {
    %r = icmp eq i32 %a, %b
    ret i1 %r
  }

  define i1 @test_icmp_eq_i64(i64 %a, i64 %b) {
    %r = icmp eq i64 %a, %b
    ret i1 %r
  }

...
---
name:            test_add_i8
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_i8
# CHECK: registers:
# CHECK:  - { id: 0, class: gpr }
# CHECK:  - { id: 1, class: gpr }
# CHECK:  - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s8) = COPY %edi
    %1(s8) = COPY %esi
    %2(s8) = G_ADD %0, %1
    %al = COPY %2(s8)
    RET 0, implicit %al

...
---
name:            test_add_i16
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_i16
# CHECK: registers:
# CHECK:  - { id: 0, class: gpr }
# CHECK:  - { id: 1, class: gpr }
# CHECK:  - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s16) = COPY %edi
    %1(s16) = COPY %esi
    %2(s16) = G_ADD %0, %1
    %ax = COPY %2(s16)
    RET 0, implicit %ax

...
---
name:            test_add_i32
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_i32
# CHECK: registers:
# CHECK:  - { id: 0, class: gpr }
# CHECK:  - { id: 1, class: gpr }
# CHECK:  - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s32) = COPY %edi
    %1(s32) = COPY %esi
    %2(s32) = G_ADD %0, %1
    %eax = COPY %2(s32)
    RET 0, implicit %eax

...
---
name:            test_add_i64
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_i64
# CHECK: registers:
# CHECK:  - { id: 0, class: gpr }
# CHECK:  - { id: 1, class: gpr }
# CHECK:  - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi, %rsi

    %0(s64) = COPY %rdi
    %1(s64) = COPY %rsi
    %2(s64) = G_ADD %0, %1
    %rax = COPY %2(s64)
    RET 0, implicit %rax

...
---
name:            test_mul_gpr
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_mul_gpr
# CHECK: registers:
# CHECK:  - { id: 0, class: gpr }
# CHECK:  - { id: 1, class: gpr }
# CHECK:  - { id: 2, class: gpr }
# CHECK:  - { id: 3, class: gpr }
# CHECK:  - { id: 4, class: gpr }
# CHECK:  - { id: 5, class: gpr }
# CHECK:  - { id: 6, class: gpr }
# CHECK:  - { id: 7, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
  - { id: 4, class: _ }
  - { id: 5, class: _ }
  - { id: 6, class: _ }
  - { id: 7, class: _ }  
body:             |
  bb.1 (%ir-block.0):
    
    %0(s64) = IMPLICIT_DEF
    %1(s32) = IMPLICIT_DEF
    %2(s16) = IMPLICIT_DEF
    %3(s8)  = IMPLICIT_DEF
    %4(s64) = G_MUL %0, %0
    %5(s32) = G_MUL %1, %1
    %6(s16) = G_MUL %2, %2
    %7(s8)  = G_MUL %3, %3
    RET 0
...
---
name:            test_add_float
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_float
# CHECK: registers:
# CHECK:  - { id: 0, class: vecr }
# CHECK:  - { id: 1, class: vecr }
# CHECK:  - { id: 2, class: vecr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %xmm0, %xmm1

    %0(s32) = COPY %xmm0
    %1(s32) = COPY %xmm1
    %2(s32) = G_FADD %0, %1
    %xmm0 = COPY %2(s32)
    RET 0, implicit %xmm0

...
---
name:            test_add_double
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_double
# CHECK: registers:
# CHECK:  - { id: 0, class: vecr }
# CHECK:  - { id: 1, class: vecr }
# CHECK:  - { id: 2, class: vecr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %xmm0, %xmm1

    %0(s64) = COPY %xmm0
    %1(s64) = COPY %xmm1
    %2(s64) = G_FADD %0, %1
    %xmm0 = COPY %2(s64)
    RET 0, implicit %xmm0

...
---
name:            test_add_v4i32
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_v4i32
# CHECK: registers:
# CHECK:  - { id: 0, class: vecr }
# CHECK:  - { id: 1, class: vecr }
# CHECK:  - { id: 2, class: vecr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %xmm0, %xmm1

    %0(<4 x s32>) = COPY %xmm0
    %1(<4 x s32>) = COPY %xmm1
    %2(<4 x s32>) = G_ADD %0, %1
    %xmm0 = COPY %2(<4 x s32>)
    RET 0, implicit %xmm0

...
---
name:            test_add_v4f32
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
tracksRegLiveness: true
# CHECK-LABEL: name:            test_add_v4f32
# CHECK: registers:
# CHECK:  - { id: 0, class: vecr }
# CHECK:  - { id: 1, class: vecr }
# CHECK:  - { id: 2, class: vecr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %xmm0, %xmm1

    %0(<4 x s32>) = COPY %xmm0
    %1(<4 x s32>) = COPY %xmm1
    %2(<4 x s32>) = G_FADD %0, %1
    %xmm0 = COPY %2(<4 x s32>)
    RET 0, implicit %xmm0

...
---
name:            test_load_i8
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_load_i8
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi

    %0(p0) = COPY %rdi
    %1(s8) = G_LOAD %0(p0) :: (load 1 from %ir.p1)
    %al = COPY %1(s8)
    RET 0, implicit %al

...
---
name:            test_load_i16
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_load_i16
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi

    %0(p0) = COPY %rdi
    %1(s16) = G_LOAD %0(p0) :: (load 2 from %ir.p1)
    %ax = COPY %1(s16)
    RET 0, implicit %ax

...
---
name:            test_load_i32
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_load_i32
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi

    %0(p0) = COPY %rdi
    %1(s32) = G_LOAD %0(p0) :: (load 4 from %ir.p1)
    %eax = COPY %1(s32)
    RET 0, implicit %eax

...
---
name:            test_load_i64
alignment:       4
exposesReturnsTwice: false
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_load_i64
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi

    %0(p0) = COPY %rdi
    %1(s64) = G_LOAD %0(p0) :: (load 8 from %ir.p1)
    %rax = COPY %1(s64)
    RET 0, implicit %rax

...
---
name:            test_load_float
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_load_float
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi

    %0(p0) = COPY %rdi
    %1(s32) = G_LOAD %0(p0) :: (load 4 from %ir.p1)
    %xmm0 = COPY %1(s32)
    RET 0, implicit %xmm0

...
---
name:            test_load_double
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_load_double
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi

    %0(p0) = COPY %rdi
    %1(s64) = G_LOAD %0(p0) :: (load 8 from %ir.p1)
    %xmm0 = COPY %1(s64)
    RET 0, implicit %xmm0

...
---
name:            test_load_v4i32
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_load_v4i32
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: vecr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi

    %0(p0) = COPY %rdi
    %1(<4 x s32>) = G_LOAD %0(p0) :: (load 16 from %ir.p1, align 1)
    %xmm0 = COPY %1(<4 x s32>)
    RET 0, implicit %xmm0

...
---
name:            test_store_i32
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_store_i32
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %rsi

    %0(s32) = COPY %edi
    %1(p0) = COPY %rsi
    G_STORE %0(s32), %1(p0) :: (store 4 into %ir.p1)
    %rax = COPY %1(p0)
    RET 0, implicit %rax

...
---
name:            test_store_i64
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_store_i64
# CHECK: registers:
# CHECK:   - { id: 0, class: gpr }
# CHECK:   - { id: 1, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi, %rsi

    %0(s64) = COPY %rdi
    %1(p0) = COPY %rsi
    G_STORE %0(s64), %1(p0) :: (store 8 into %ir.p1)
    %rax = COPY %1(p0)
    RET 0, implicit %rax

...
---
name:            test_store_float
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_store_float
# CHECK: registers:

# FAST-NEXT:    - { id: 0, class: vecr }
# FAST-NEXT:    - { id: 1, class: gpr }
# FAST-NEXT:    - { id: 2, class: gpr }

# GREEDY-NEXT:    - { id: 0, class: vecr }
# GREEDY-NEXT:    - { id: 1, class: gpr }

registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi, %xmm0

    %0(s32) = COPY %xmm0
    %1(p0) = COPY %rdi
    ; CHECK:      %1(p0) = COPY %rdi

    ; FAST-NEXT:  %2(s32) = COPY %0(s32)
    ; FAST-NEXT:  G_STORE %2(s32), %1(p0) :: (store 4 into %ir.p1)

    ; GREEDY-NEXT:  G_STORE %0(s32), %1(p0) :: (store 4 into %ir.p1)

    G_STORE %0(s32), %1(p0) :: (store 4 into %ir.p1)
    %rax = COPY %1(p0)
    RET 0, implicit %rax

...
---
name:            test_store_double
alignment:       4
legalized:       true
regBankSelected: false
selected:        false
# CHECK-LABEL: name:            test_store_double
# CHECK: registers:

# FAST-NEXT:    - { id: 0, class: vecr }
# FAST-NEXT:    - { id: 1, class: gpr }
# FAST-NEXT:    - { id: 2, class: gpr }

# GREEDY-NEXT:    - { id: 0, class: vecr }
# GREEDY-NEXT:    - { id: 1, class: gpr }

registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi, %xmm0

    %0(s64) = COPY %xmm0
    %1(p0) = COPY %rdi

    ; CHECK:       %1(p0) = COPY %rdi

    ; FAST-NEXT:   %2(s64) = COPY %0(s64)
    ; FAST-NEXT:   G_STORE %2(s64), %1(p0) :: (store 8 into %ir.p1)

    ; GREEDY-NEXT: G_STORE %0(s64), %1(p0) :: (store 8 into %ir.p1)

    G_STORE %0(s64), %1(p0) :: (store 8 into %ir.p1)
    %rax = COPY %1(p0)
    RET 0, implicit %rax

...
---
name:            constInt_check
alignment:       4
legalized:       true
# CHECK-LABEL: name:            constInt_check
# CHECK: registers:
# CHECK-NEXT:  - { id: 0, class: gpr }
# CHECK-NEXT:  - { id: 1, class: gpr }
# CHECK-NEXT:  - { id: 2, class: gpr }
# CHECK-NEXT:  - { id: 3, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
body:             |
  bb.0 (%ir-block.0):
    %0(s8) = G_CONSTANT i8 8
    %1(s16) = G_CONSTANT i16 16
    %2(s32) = G_CONSTANT i32 32
    %3(s64) = G_CONSTANT i64 64
    RET 0

...
---
name:            trunc_check
alignment:       4
legalized:       true
# CHECK-LABEL: name:            trunc_check
# CHECK: registers:
# CHECK-NEXT:  - { id: 0, class: gpr }
# CHECK-NEXT:  - { id: 1, class: gpr }
# CHECK-NEXT:  - { id: 2, class: gpr }
# CHECK-NEXT:  - { id: 3, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
body:             |
  bb.0 (%ir-block.0):
    %0(s32) = IMPLICIT_DEF
    %1(s1) = G_TRUNC %0(s32)
    %2(s8) = G_TRUNC %0(s32)
    %3(s16) = G_TRUNC %0(s32)
    RET 0

...
---
name:            test_gep
legalized:       true
# CHECK-LABEL: name:            test_gep
# CHECK: registers:
# CHECK-NEXT:  - { id: 0, class: gpr }
# CHECK-NEXT:  - { id: 1, class: gpr }
# CHECK-NEXT:  - { id: 2, class: gpr }
# CHECK-NEXT:  - { id: 3, class: gpr }
# CHECK-NEXT:  - { id: 4, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
  - { id: 4, class: _ }
body:             |
  bb.0 (%ir-block.0):
    %0(p0) = IMPLICIT_DEF
    %1(s32) = G_CONSTANT i32 20
    %2(p0) = G_GEP %0, %1(s32)
    %3(s64) = G_CONSTANT i64 20
    %4(p0) = G_GEP %0, %3(s64)
    RET 0

...
---
name:            test_icmp_eq_i8
# CHECK-LABEL: name:  test_icmp_eq_i8
alignment:       4
legalized:       true
regBankSelected: false
# CHECK:      registers:
# CHECK-NEXT:   - { id: 0, class: gpr }
# CHECK-NEXT:   - { id: 1, class: gpr }
# CHECK-NEXT:   - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s8) = COPY %edi
    %1(s8) = COPY %esi
    %2(s1) = G_ICMP intpred(eq), %0(s8), %1
    %al = COPY %2(s1)
    RET 0, implicit %al

...
---
name:            test_icmp_eq_i16
# CHECK-LABEL: name:  test_icmp_eq_i16
alignment:       4
legalized:       true
regBankSelected: false
# CHECK:      registers:
# CHECK-NEXT:   - { id: 0, class: gpr }
# CHECK-NEXT:   - { id: 1, class: gpr }
# CHECK-NEXT:   - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s16) = COPY %edi
    %1(s16) = COPY %esi
    %2(s1) = G_ICMP intpred(eq), %0(s16), %1
    %al = COPY %2(s1)
    RET 0, implicit %al

...
---
name:            test_icmp_eq_i32
# CHECK-LABEL: name:  test_icmp_eq_i32
alignment:       4
legalized:       true
regBankSelected: false
# CHECK:      registers:
# CHECK-NEXT:   - { id: 0, class: gpr }
# CHECK-NEXT:   - { id: 1, class: gpr }
# CHECK-NEXT:   - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s32) = COPY %edi
    %1(s32) = COPY %esi
    %2(s1) = G_ICMP intpred(eq), %0(s32), %1
    %al = COPY %2(s1)
    RET 0, implicit %al

...
---
name:            test_icmp_eq_i64
# CHECK-LABEL: name:  test_icmp_eq_i64
alignment:       4
legalized:       true
regBankSelected: false
# CHECK:      registers:
# CHECK-NEXT:   - { id: 0, class: gpr }
# CHECK-NEXT:   - { id: 1, class: gpr }
# CHECK-NEXT:   - { id: 2, class: gpr }
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi, %rsi

    %0(s64) = COPY %rdi
    %1(s64) = COPY %rsi
    %2(s1) = G_ICMP intpred(eq), %0(s64), %1
    %al = COPY %2(s1)
    RET 0, implicit %al

...