|  | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | 
|  | ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s | 
|  |  | 
|  | ; rdar://11245199 | 
|  | ; PR12545 | 
|  |  | 
|  | declare void @g() | 
|  |  | 
|  | define void @neg_cmp(i32 %x, i32 %y) nounwind { | 
|  | ; CHECK-LABEL: neg_cmp: | 
|  | ; CHECK:       # %bb.0: | 
|  | ; CHECK-NEXT:    addl %esi, %edi | 
|  | ; CHECK-NEXT:    jne .LBB0_1 | 
|  | ; CHECK-NEXT:  # %bb.2: # %if.then | 
|  | ; CHECK-NEXT:    jmp g # TAILCALL | 
|  | ; CHECK-NEXT:  .LBB0_1: # %if.end | 
|  | ; CHECK-NEXT:    retq | 
|  | %sub = sub i32 0, %y | 
|  | %cmp = icmp eq i32 %x, %sub | 
|  | br i1 %cmp, label %if.then, label %if.end | 
|  |  | 
|  | if.then: | 
|  | tail call void @g() nounwind | 
|  | br label %if.end | 
|  |  | 
|  | if.end: | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @neg_cmp_commuted(i32 %x, i32 %y) nounwind { | 
|  | ; CHECK-LABEL: neg_cmp_commuted: | 
|  | ; CHECK:       # %bb.0: | 
|  | ; CHECK-NEXT:    addl %esi, %edi | 
|  | ; CHECK-NEXT:    jne .LBB1_1 | 
|  | ; CHECK-NEXT:  # %bb.2: # %if.then | 
|  | ; CHECK-NEXT:    jmp g # TAILCALL | 
|  | ; CHECK-NEXT:  .LBB1_1: # %if.end | 
|  | ; CHECK-NEXT:    retq | 
|  | %sub = sub i32 0, %y | 
|  | %cmp = icmp eq i32 %sub, %x | 
|  | br i1 %cmp, label %if.then, label %if.end | 
|  |  | 
|  | if.then: | 
|  | tail call void @g() nounwind | 
|  | br label %if.end | 
|  |  | 
|  | if.end: | 
|  | ret void | 
|  | } | 
|  |  |