llvm/test/CodeGen/MIR/X86/mir-canon-hash-bb.mir

# RUN: llc  -run-pass mir-namer -x mir -verify-machineinstrs %s -o - | FileCheck %s
# RUN: llc  -run-pass mir-canonicalizer -x mir -verify-machineinstrs %s -o - | FileCheck %s
# RUN: llc  -run-pass mir-namer -mir-vreg-namer-use-stable-hash -x mir -verify-machineinstrs %s -o - | FileCheck %s
# RUN: llc  -run-pass mir-canonicalizer -mir-vreg-namer-use-stable-hash -x mir -verify-machineinstrs %s -o - | FileCheck %s
--- |
  target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  target triple = "x86_64-unknown-linux-gnu"
  define i32 @_Z1fi(i32 %arg) {
    %tmp = alloca i32, align 4
    %tmp1 = alloca i32, align 4
    ret i32 %arg
  }

...
---
name:            _Z1fi
registers:
  - { id: 0, class: _, preferred-register: '' }
  - { id: 1, class: _, preferred-register: '' }
  - { id: 2, class: _, preferred-register: '' }
  - { id: 3, class: _, preferred-register: '' }
  - { id: 4, class: _, preferred-register: '' }
  - { id: 5, class: _, preferred-register: '' }
  - { id: 6, class: _, preferred-register: '' }
  - { id: 7, class: _, preferred-register: '' }
  - { id: 8, class: _, preferred-register: '' }
stack:
  - { id: 0, name: tmp, type: default, offset: 0, size: 4, alignment: 4  }
  - { id: 1, name: tmp1, type: default, offset: 0, size: 4, alignment: 4 }
body:             |
  bb.0:
    %tmp0:_(s32) = COPY $edi
    %tmp1:_(s32) = G_CONSTANT i32 0
    %tmp5:_(p0) = G_FRAME_INDEX %stack.0.tmp
    %tmp6:_(p0) = G_FRAME_INDEX %stack.1.tmp1
    G_STORE %tmp0(s32), %tmp5(p0) :: (store (s32) into %ir.tmp)
    %tmp7:_(s32) = G_LOAD %tmp5(p0) :: (load (s32) from %ir.tmp)
    %tmp8:_(s1) = G_ICMP intpred(ne), %tmp7(s32), %tmp1
    G_BRCOND %tmp8(s1), %bb.1
    G_BR %bb.2

  ; CHECK: bb.1:
  ; CHECK: %bb2_{{[0-9]+}}__1:_(s32) = G_CONSTANT
  bb.1:
    %tmp4:_(s32) = G_CONSTANT i32 1
    G_STORE %tmp4(s32), %tmp6(p0) :: (store (s32) into %ir.tmp1)
    G_BR %bb.3


  ; CHECK: bb.2:
  ; CHECK: %bb1_{{[0-9]+}}__1:_(s32) = G_CONSTANT
  bb.2:
    %tmp3:_(s32) = G_CONSTANT i32 2
    G_STORE %tmp3(s32), %tmp6(p0) :: (store (s32) into %ir.tmp1)

  ; CHECK: bb.3:
  ; CHECK: %bb3_{{[0-9]+}}__1:_(s32) =  G_LOAD
  bb.3:
    %tmp9:_(s32) = G_LOAD %tmp6(p0) :: (load (s32) from %ir.tmp1)
    $eax = COPY %tmp9(s32)
    RET 0, implicit $eax

...