Hsiangkai Wang 760c1ab199 [DebugInfo] Do not generate label debug info if it has been processed. ...

In DwarfDebug::collectEntityInfo(), if the label entity is processed in
DbgLabels list, it means the label is not optimized out. There is no
need to generate debug info for it with null position.

llvm-svn: 341513

2018-09-06 02:22:06 +00:00

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