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[Bug middle-end/17886] variable rotate and long long rotate should be better optimized
- From: "ak at muc dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Oct 2005 20:20:23 -0000
- Subject: [Bug middle-end/17886] variable rotate and long long rotate should be better optimized
- References: <bug-17886-7834@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #17 from ak at muc dot de 2005-10-04 20:20 -------
The code now looks fine to me thanks
I would prefer if it didn't generate SSE2/MMX code because that would be a
problem for kernels. Also in many x86 implementations moving things between
normal integer registers and SIMD registers is quite slow and would likely eat
all advantages
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17886