Add a GIM_CheckIsSameOperand test where OtherInsnID and OtherOpIdx differ
# RUN: llc -mtriple=x86_64-linux-gnu -mattr=+bmi -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s
#
# Test that rules where multiple operands must be the same operand successfully
# match. Also test that the rules do not match when they're not the same
# operand.
#
# This test covers the case when OtherInsnID and OtherOpIdx are different in a
# GIM_CheckIsSameOperand.

---
name:            test_blsi32rr
# CHECK-LABEL: name:  test_blsi32rr
alignment:       4
legalized:       true
regBankSelected: true
# CHECK:       registers:
# CHECK-NEXT:     - { id: 0, class: gr32, preferred-register: '' }
# CHECK-NEXT:     - { id: 1, class: gpr, preferred-register: '' }
# CHECK-NEXT:     - { id: 2, class: gpr, preferred-register: '' }
# CHECK-NEXT:     - { id: 3, class: gr32, preferred-register: '' }
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: gpr }
  - { id: 3, class: gpr }
# G_SUB and G_AND both use %0 so we should match this.
# CHECK: %3 = BLSI32rr %0
body:             |
  bb.1:
    liveins: %edi

    %0(s32) = COPY %edi
    %1(s32) = G_CONSTANT i32 0
    %2(s32) = G_SUB %1, %0
    %3(s32) = G_AND %2, %0
    %edi = COPY %3

...
---
name:            test_blsi32rr_nomatch
# CHECK-LABEL: name:  test_blsi32rr_nomatch
alignment:       4
legalized:       true
regBankSelected: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: gpr }
  - { id: 3, class: gpr }
# G_SUB and G_AND use different operands so we shouldn't match this.
# CHECK-NOT: BLSI32rr
body:             |
  bb.1:
    liveins: %edi

    %0(s32) = COPY %edi
    %1(s32) = G_CONSTANT i32 0
    %2(s32) = G_SUB %1, %1
    %3(s32) = G_AND %2, %0
    %edi = COPY %3
...