1 ; This testcase exposed a problem with the loop identification pass (LoopInfo). 2 ; Basically, it was incorrectly calculating the loop nesting information. 3 ; 4 ; RUN: opt < %s -loop-simplify 5 6 define i32 @yylex() { 7 br label %loopentry.0 8 loopentry.0: ; preds = %else.4, %0 9 br label %loopexit.2 10 loopexit.2: ; preds = %else.4, %loopexit.2, %loopentry.0 11 br i1 false, label %loopexit.2, label %else.4 12 yy_find_action: ; preds = %else.4 13 br label %else.4 14 else.4: ; preds = %yy_find_action, %loopexit.2 15 switch i32 0, label %loopexit.2 [ 16 i32 2, label %yy_find_action 17 i32 0, label %loopentry.0 18 ] 19 } 20 21
