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| author | Jonathan Wakely <jwakely@redhat.com> | 2021-08-23 13:12:24 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2021-08-23 14:45:00 +0100 |
| commit | da6ce351069bda74d814b723934008d75bd4e8b0 (patch) | |
| tree | 2d9a2c128877375521ca94a0582099f9b6e18323 /gcc/config.gcc | |
| parent | bc97e736a5597ac1545b7f9069472117b6caa867 (diff) | |
| download | gcc-da6ce351069bda74d814b723934008d75bd4e8b0.zip gcc-da6ce351069bda74d814b723934008d75bd4e8b0.tar.gz gcc-da6ce351069bda74d814b723934008d75bd4e8b0.tar.bz2 | |
libstdc++: Use __builtin_expect in __dynamic_cast
The null pointer check is never needed for correct code, only to
gracefully handle undefined cases. Add __builtin_expect to be sure that
we don't pessimize the valid uses.
libstdc++-v3/ChangeLog:
* libsupc++/dyncast.cc (__dynamic_cast): Add __builtin_expect to
precondition check.
Diffstat (limited to 'gcc/config.gcc')
0 files changed, 0 insertions, 0 deletions