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BUG: make a variable volatile to work around clang compiler bug - #18030
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Thanks @r-devulap this sounds like a simple and good change to me. Should be backported to both 1.19.x and 1.20.x I guess. @tomgoddard I trust this fixes the issue, but if it is easy for you to check, that would be appreciated! |
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…y#18030) * BUG: make a variable volatile to work around clang compiler bug * Adding comments for relevance * TST: Adding test to check for no overflow warnings in log Fixes numpy#18005
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…y#18030) * BUG: make a variable volatile to work around clang compiler bug * Adding comments for relevance * TST: Adding test to check for no overflow warnings in log Fixes numpy#18005
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09 - Backport-Candidate
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I tried today's numpy daily build numpy-1.21.0.dev0+271.gf7bc51218-cp38-cp38-macosx_10_9_x86_64.whl in my software that led to this bug report and no longer get the log() overflow warning. I did not verify that this daily build has the patch.
Thanks for the amazing quick work to locate and fix the problem. I find it interesting that this bug could go unreported for long. Surely log(float32) is used a fair bit. Maybe it indicates that the RuntimeWarning messages are largely suppressed by software that uses numpy.
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@tomgoddard The fix was included in that build. |
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Relatively speaking, not too many people are affected by this or would notice it, I think.
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Fixes #18005