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1; RUN: opt -S -passes='loop(indvars,loop-idiom),verify,loop(loop-simplifycfg,loop-idiom)' -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s2 3target triple = "x86_64-unknown-linux-gnu"4 5; CHECK-LABEL: @f1(i1 %arg)6; CHECK-NEXT: entry:7define void @f1(i1 %arg) {8entry:9 br label %lbl110 11lbl1: ; preds = %if.end, %entry12 br label %for13 14for: ; preds = %if.end, %lbl115 br label %lor.end16 17lor.end: ; preds = %for18 br i1 %arg, label %for.end, label %if.end19 20if.end: ; preds = %lor.end21 br i1 %arg, label %lbl1, label %for22 23for.end: ; preds = %lor.end24 ret void25}26