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; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -disable-output
; PR 2777
@g_103 = common global i32 0 ; <ptr> [#uses=1]
define i32 @func_127(i32 %p_129) nounwind {
entry:
load i32, ptr @g_103, align 4 ; <i32>:0 [#uses=1]
icmp eq i32 %0, 0 ; <i1>:1 [#uses=2]
br i1 %1, label %bb6.preheader, label %entry.return_crit_edge
entry.return_crit_edge: ; preds = %entry
br label %return
bb6.preheader: ; preds = %entry
br i1 %1, label %bb6.preheader.split.us, label %bb6.preheader.split
bb6.preheader.split.us: ; preds = %bb6.preheader
br label %return.loopexit.split
bb6.preheader.split: ; preds = %bb6.preheader
br label %bb6
bb6: ; preds = %bb17.bb6_crit_edge, %bb6.preheader.split
%indvar35 = phi i32 [ 0, %bb6.preheader.split ], [ %indvar.next36, %bb17.bb6_crit_edge ] ; <i32> [#uses=1]
%p_129_addr.3.reg2mem.0 = phi i32 [ %p_129_addr.2, %bb17.bb6_crit_edge ], [ %p_129, %bb6.preheader.split ] ; <i32> [#uses=3]
icmp eq i32 %p_129_addr.3.reg2mem.0, 0 ; <i1>:2 [#uses=1]
br i1 %2, label %bb6.bb17_crit_edge, label %bb8
bb6.bb17_crit_edge: ; preds = %bb6
br label %bb17
bb8: ; preds = %bb6
br label %bb13
bb13: ; preds = %bb8
br label %bb17
bb17: ; preds = %bb13, %bb6.bb17_crit_edge
%p_129_addr.2 = phi i32 [ %p_129_addr.3.reg2mem.0, %bb13 ], [ %p_129_addr.3.reg2mem.0, %bb6.bb17_crit_edge ] ; <i32> [#uses=1]
%indvar.next36 = add i32 %indvar35, 1 ; <i32> [#uses=2]
%exitcond37 = icmp eq i32 %indvar.next36, -1 ; <i1> [#uses=1]
br i1 %exitcond37, label %return.loopexit, label %bb17.bb6_crit_edge
bb17.bb6_crit_edge: ; preds = %bb17
br label %bb6
return.loopexit: ; preds = %bb17
br label %return.loopexit.split
return.loopexit.split: ; preds = %return.loopexit, %bb6.preheader.split.us
br label %return
return: ; preds = %return.loopexit.split, %entry.return_crit_edge
ret i32 1
}
define i32 @func_135(i8 zeroext %p_137, i32 %p_138, i32 %p_140) nounwind {
entry:
ret i32 undef
}
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