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; RUN: llc < %s -march=x86 | FileCheck %s
; RUN: llc -no-phi-elim-live-out-early-exit -terminal-rule < %s -march=x86 | FileCheck %s
; PR2659
define i32 @binomial(i32 %n, i32 %k) nounwind {
entry:
%cmp = icmp ugt i32 %k, %n ; <i1> [#uses=1]
br i1 %cmp, label %ifthen, label %forcond.preheader
forcond.preheader: ; preds = %entry
%cmp44 = icmp eq i32 %k, 0 ; <i1> [#uses=1]
br i1 %cmp44, label %afterfor, label %forbody
ifthen: ; preds = %entry
ret i32 0
; CHECK: forbody{{$}}
; There should be no mov instruction in the for body.
; CHECK-NOT: mov
; CHECK: jbe
forbody: ; preds = %forbody, %forcond.preheader
%indvar = phi i32 [ 0, %forcond.preheader ], [ %divisor.02, %forbody ] ; <i32> [#uses=3]
%accumulator.01 = phi i32 [ 1, %forcond.preheader ], [ %div, %forbody ] ; <i32> [#uses=1]
%divisor.02 = add i32 %indvar, 1 ; <i32> [#uses=2]
%n.addr.03 = sub i32 %n, %indvar ; <i32> [#uses=1]
%mul = mul i32 %n.addr.03, %accumulator.01 ; <i32> [#uses=1]
%div = udiv i32 %mul, %divisor.02 ; <i32> [#uses=2]
%inc = add i32 %indvar, 2 ; <i32> [#uses=1]
%cmp4 = icmp ugt i32 %inc, %k ; <i1> [#uses=1]
br i1 %cmp4, label %afterfor, label %forbody
afterfor: ; preds = %forbody, %forcond.preheader
%accumulator.0.lcssa = phi i32 [ 1, %forcond.preheader ], [ %div, %forbody ] ; <i32> [#uses=1]
ret i32 %accumulator.0.lcssa
}
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