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- ; This testcase exposed a problem with the loop identification pass (LoopInfo).
- ; Basically, it was incorrectly calculating the loop nesting information.
- ;
- ; RUN: opt < %s -loop-simplify
- define i32 @yylex() {
- br label %loopentry.0
- loopentry.0: ; preds = %else.4, %0
- br label %loopexit.2
- loopexit.2: ; preds = %else.4, %loopexit.2, %loopentry.0
- br i1 false, label %loopexit.2, label %else.4
- yy_find_action: ; preds = %else.4
- br label %else.4
- else.4: ; preds = %yy_find_action, %loopexit.2
- switch i32 0, label %loopexit.2 [
- i32 2, label %yy_find_action
- i32 0, label %loopentry.0
- ]
- }
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