test/CodeGen/X86/code_placement_outline_optional_branches.ll

; RUN: llc -mcpu=corei7 -mtriple=x86_64-linux < %s | FileCheck %s
; RUN: llc -mcpu=corei7 -mtriple=x86_64-linux -outline-optional-branches < %s | FileCheck %s -check-prefix=CHECK-OUTLINE

define void @foo(i32 %t1, i32 %t2, i32 %t3) {
; Test that we lift the call to 'c' up to immediately follow the call to 'b'
; when we disable the cfg conflict check.
;
; CHECK-LABEL: foo:
; CHECK: callq a
; CHECK: callq a
; CHECK: callq a
; CHECK: callq a
; CHECK: callq b
; CHECK: callq c
; CHECK: callq d
; CHECK: callq e
; CHECK: callq f
;
; CHECK-OUTLINE-LABEL: foo:
; CHECK-OUTLINE: callq b
; CHECK-OUTLINE: callq c
; CHECK-OUTLINE: callq d
; CHECK-OUTLINE: callq e
; CHECK-OUTLINE: callq f
; CHECK-OUTLINE: callq a
; CHECK-OUTLINE: callq a
; CHECK-OUTLINE: callq a
; CHECK-OUTLINE: callq a

entry:
  %cmp = icmp eq i32 %t1, 0
  br i1 %cmp, label %if.then, label %if.end

if.then:
  call void @a()
  call void @a()
  call void @a()
  call void @a()
  br label %if.end

if.end:
  call void @b()
  br label %hotbranch

hotbranch:
  %cmp2 = icmp eq i32 %t2, 0
  br i1 %cmp2, label %if.then2, label %if.end2, !prof !1

if.then2:
  call void @c()
  br label %if.end2

if.end2:
  call void @d()
  br label %shortbranch

shortbranch:
  %cmp3 = icmp eq i32 %t3, 0
  br i1 %cmp3, label %if.then3, label %if.end3

if.then3:
  call void @e()
  br label %if.end3

if.end3:
  call void @f()
  ret void
}

declare void @a()
declare void @b()
declare void @c()
declare void @d()
declare void @e()
declare void @f()

!1 = !{!"branch_weights", i32 64, i32 4}