[Bug ipa/66424] [5/6 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu in 32-bit mode

aurelien at aurel32 dot net gcc-bugzilla@gcc.gnu.org
Wed Sep 30 14:44:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66424

Aurelien Jarno <aurelien at aurel32 dot net> changed:

           What    |Removed                     |Added
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                 CC|                            |aurelien at aurel32 dot net

--- Comment #11 from Aurelien Jarno <aurelien at aurel32 dot net> ---
For the record this bug badly affects the MIPS target when using
-mtune=mips32r2, option which is implied by the -march=mips32r2 option. This
causes for example ffmpeg to be miscompiled, which causes its testsuite to fail
completely.

It's not a problem anymore now that the bug has been fixed on the gcc-5-branch,
however I prefer to mention it here, so that people debugging this issue find
this bug.



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