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[Bug rtl-optimization/55177] missed optimizations with __builtin_bswap
- From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 08 Nov 2012 16:14:23 +0000
- Subject: [Bug rtl-optimization/55177] missed optimizations with __builtin_bswap
- Auto-submitted: auto-generated
- References: <bug-55177-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55177
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-11-08 16:14:23 UTC ---
> I think I have the GCC version checks right there, for the availability of the
> builtins? That is, __builtin_bswap32() and __builtin_bswap64() since GCC 4.4,
> and __builtin_bswap16() since GCC 4.6 on PowerPC or GCC 4.9 on other platforms?
4.8 on other platforms.