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https://github.com/c64scene-ar/llvm-6502.git
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4a60b932a2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125317 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
599 B
LLVM
21 lines
599 B
LLVM
; This testcase exposed a problem with the loop identification pass (LoopInfo).
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; Basically, it was incorrectly calculating the loop nesting information.
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;
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; RUN: opt < %s -loop-simplify
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define i32 @yylex() {
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br label %loopentry.0
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loopentry.0: ; preds = %else.4, %0
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br label %loopexit.2
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loopexit.2: ; preds = %else.4, %loopexit.2, %loopentry.0
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br i1 false, label %loopexit.2, label %else.4
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yy_find_action: ; preds = %else.4
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br label %else.4
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else.4: ; preds = %yy_find_action, %loopexit.2
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switch i32 0, label %loopexit.2 [
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i32 2, label %yy_find_action
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i32 0, label %loopentry.0
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]
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}
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