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-O -C lto is *not* same to -C opt-level=2 -C lto #22677

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lifthrasiir opened this issue Feb 22, 2015 · 2 comments
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-O -C lto is *not* same to -C opt-level=2 -C lto #22677

lifthrasiir opened this issue Feb 22, 2015 · 2 comments

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@lifthrasiir
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Fallout of #21191. -C opt-level=2 sets CodegenOptions::opt_level but -O doesn't, and -C lto path only looks at that. Due to the fallback from LTO path, -O -C lto is currently same to -C opt-level=0 -C lto (!).
@dotdash
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dotdash commented Feb 22, 2015

Thanks for the bug report, this will be fixed by #22530

@lifthrasiir
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Ah indeed. This was a duplicate of #22525. Closing.

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@dotdash @lifthrasiir