2007-07-26-InterlockingLoops.ll
1.08 KB
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; RUN: opt < %s -basic-aa -gvn -S | FileCheck %s
@last = external global [65 x i32*]
define i32 @NextRootMove(i32 %wtm, i32 %x, i32 %y, i32 %z) {
entry:
%A = alloca i32*
%tmp17618 = load i32*, i32** getelementptr ([65 x i32*], [65 x i32*]* @last, i32 0, i32 1), align 4
store i32* %tmp17618, i32** %A
; CHECK: entry:
; CHECK-NEXT: alloca i32
; CHECK-NEXT: %tmp17618 = load
; CHECK-NOT: load
; CHECK-NOT: phi
br label %cond_true116
cond_true116:
%cmp = icmp eq i32 %x, %y
br i1 %cmp, label %cond_true128, label %cond_true145
cond_true128:
%tmp17625 = load i32*, i32** getelementptr ([65 x i32*], [65 x i32*]* @last, i32 0, i32 1), align 4
store i32* %tmp17625, i32** %A
%cmp1 = icmp eq i32 %x, %z
br i1 %cmp1 , label %bb98.backedge, label %return.loopexit
bb98.backedge:
br label %cond_true116
cond_true145:
%tmp17631 = load i32*, i32** getelementptr ([65 x i32*], [65 x i32*]* @last, i32 0, i32 1), align 4
store i32* %tmp17631, i32** %A
br i1 false, label %bb98.backedge, label %return.loopexit
return.loopexit:
br label %return
return:
ret i32 0
}