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1; Here we have a case where there are two loops and LICM is hoisting an2; instruction from one loop into the other loop! This is obviously bad and3; happens because preheader insertion doesn't insert a preheader for this4; case... bad.5 6; RUN: opt < %s -passes='loop-mssa(licm,loop-deletion),simplifycfg' -simplifycfg-require-and-preserve-domtree=1 -S | \7; RUN: not grep "br "8 9define i32 @main(i32 %argc) {10; <label>:011 br label %bb512bb5: ; preds = %bb5, %013 %I = phi i32 [ 0, %0 ], [ %I2, %bb5 ] ; <i32> [#uses=1]14 %I2 = add i32 %I, 1 ; <i32> [#uses=2]15 %c = icmp eq i32 %I2, 10 ; <i1> [#uses=1]16 br i1 %c, label %bb5, label %bb817bb8: ; preds = %bb8, %bb518 %cann-indvar = phi i32 [ 0, %bb8 ], [ 0, %bb5 ] ; <i32> [#uses=0]19 %X = add i32 %argc, %argc ; <i32> [#uses=1]20 br i1 false, label %bb8, label %bb1021bb10: ; preds = %bb822 ret i32 %X23}24 25