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| author | Joseph Myers <joseph@codesourcery.com> | 2015-09-23 22:52:13 +0000 |
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| committer | Joseph Myers <joseph@codesourcery.com> | 2015-09-23 22:52:13 +0000 |
| commit | cfcbebf7ac5de5bf1928201b6bd9cd5e6764b4a7 (patch) | |
| tree | 865093eaae5893910d88d19d38a4e36206a988c1 /ChangeLog.14 | |
| parent | d96164c33012fccc7ba3ebb4d324c7fd0c6b5836 (diff) | |
| download | glibc-cfcbebf7ac5de5bf1928201b6bd9cd5e6764b4a7.tar.gz glibc-cfcbebf7ac5de5bf1928201b6bd9cd5e6764b4a7.tar.xz glibc-cfcbebf7ac5de5bf1928201b6bd9cd5e6764b4a7.zip | |
Don't use volatile in exp2f.
sysdeps/ieee754/flt-32/e_exp2f.c declares two variable as "static const volatile float". Maybe this use of "volatile" was originally intended to inhibit optimization of underflowing / overflowing operations such as TWOM100 * TWOM100; in any case, it's not currently needed, as given -frounding-math constant folding of such expressions is properly disabled when it would be unsafe. This patch removes the unnecessary use of "volatile". Tested for x86_64. * sysdeps/ieee754/flt-32/e_exp2f.c (TWOM100): Remove volatile. (TWO127): Likewise.
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