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1; RUN: opt < %s -loop-reduce -S2 3; Test that SCEV insertpoint's don't get corrupted and cause an4; invalid instruction to be inserted in a block other than its parent.5; See http://reviews.llvm.org/D20703 for context.6define void @test() {7entry:8 %bf.load = load i32, ptr null, align 49 %bf.clear = lshr i32 %bf.load, 110 %div = and i32 %bf.clear, 13421772711 %sub = add nsw i32 %div, -112 %0 = zext i32 %sub to i6413 br label %while.cond14 15while.cond: ; preds = %cond.end, %entry16 %indvars.iv = phi i64 [ %indvars.iv.next, %cond.end ], [ 0, %entry ]17 %cmp = icmp eq i64 %indvars.iv, %018 br i1 %cmp, label %cleanup16, label %while.body19 20while.body: ; preds = %while.cond21 %1 = trunc i64 %indvars.iv to i3222 %mul = shl i32 %1, 123 %add = add nuw i32 %mul, 224 %cmp3 = icmp ult i32 %add, 025 br i1 %cmp3, label %if.end, label %if.then26 27if.then: ; preds = %while.body28 unreachable29 30if.end: ; preds = %while.body31 br i1 false, label %cond.end, label %cond.true32 33cond.true: ; preds = %if.end34 br label %cond.end35 36cond.end: ; preds = %cond.true, %if.end37 %add7 = add i32 %1, 138 %cmp12 = icmp ugt i32 %add7, %sub39 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 140 br i1 %cmp12, label %if.then13, label %while.cond41 42if.then13: ; preds = %cond.end43 unreachable44 45cleanup16: ; preds = %while.cond46 ret void47}48