On 16 June 2014 10:38, Pinski, Andrew <andrew.pin...@caviumnetworks.com> wrote: >> * Investigate how to optimize large constant. Patch is in testing (TCWG-486, >> 5/10). Basic idea is: >> - Do not split large constant when expanding. >> - Improve cprop pass to check the rtx_cost when propagating constants. > > I did this basic idea for MIPS64 and also caused cse to ignore the cost of > constants when it was optimizing zero_extend on the lhs. This two things > helped lot for optimizing of setting bit-fields to a constant (without a tree > level pass).
Thanks for the comments. Do you have an example benefited from your cse changes? I want to verify it on ARM. Thanks! -Zhenqiang > Thanks, > Andrew Pinski > > -----Original Message----- > From: linaro-toolchain-boun...@lists.linaro.org > [mailto:linaro-toolchain-boun...@lists.linaro.org] On Behalf Of Zhenqiang Chen > Sent: Sunday, June 15, 2014 7:29 PM > To: linaro-toolchain > Subject: [ACTIVITY] Week 24 > > == Issues == > > * None. > > == Progress == > > * Work out 4 patches to enhance loop2-invariant heuristics and send out for > community review (TCWG-469, 3/10). > * Test the rebased ccmp patches (TCWG-488, 2/10). > * Investigate how to optimize large constant. Patch is in testing (TCWG-486, > 5/10). Basic idea is: > - Do not split large constant when expanding. > - Improve cprop pass to check the rtx_cost when propagating constants. > > == Plans == > > * Ping pending patches. > * Send out ccmp patches for review. > * Send out patches to optimize constant. > > _______________________________________________ > linaro-toolchain mailing list > linaro-toolchain@lists.linaro.org > http://lists.linaro.org/mailman/listinfo/linaro-toolchain _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
