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From: | Georg-Johann Lay |
Subject: | Re: [avr-gcc-list] Optimisation of bit set/clear in uint32_t |
Date: | Tue, 21 Apr 2009 20:21:18 +0200 |
User-agent: | Thunderbird 2.0.0.21 (Windows/20090302) |
Dale Whitfield schrieb:
Hi, All this talk of super-optimisers, etc. brings this issue I've had, to the fore again. Perhaps there are suggestions on how to encourage the compiler to do the optimisations rather than having to hand-code to get the best result.
There is some work which addresses that issue: http://gcc.gnu.org/ml/gcc-patches/2008-12/msg00905.html http://lists.gnu.org/archive/html/avr-gcc-list/2008-12/msg00009.html Georg-Johann
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