[issue3326] py3k shouldn't use -fno-strict-aliasing anymore
Daniel Stutzbach
report at bugs.python.org
Tue Mar 30 08:13:51 CEST 2010
Daniel Stutzbach <daniel at stutzbachenterprises.com> added the comment:
Attached is a patch for configure.in and configure that implements Benjamin's suggestion. The patch sets things up to continue to use -fno-strict-aliasing on gcc versions that support -fno-strict-aliasing *and* generate spurious warnings without it. Effectively, that means it adds -fno-strict-aliasing for gcc versions < 4.3.
I tested it with gcc-3.4.4 and gcc-4.3.2. It added -fno-strict-aliasing with gcc-3.4.4 and did not with gcc-4.3.2, as desired.
With the gcc-4.3.2 build, I did a "make test" and no tests failed.
I also found that pybench ran around 1% faster with the patch.
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versions: +Python 3.2, Python 3.3
Added file: http://bugs.python.org/file16696/strict-aliasing.patch
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