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[Bug target/55181] [5/6/7 Regression] Expensive shift loop where a bit-testing instruction could be used
- From: "gjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 04 Aug 2016 07:51:25 +0000
- Subject: [Bug target/55181] [5/6/7 Regression] Expensive shift loop where a bit-testing instruction could be used
- Auto-submitted: auto-generated
- References: <bug-55181-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55181
--- Comment #16 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Author: gjl
Date: Thu Aug 4 07:50:53 2016
New Revision: 239116
URL: https://gcc.gnu.org/viewcvs?rev=239116&root=gcc&view=rev
Log:
PR 55181
* config/avr/avr.md: New pattern to work around do_store_flag
generating shift instructions for bit extractions.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/avr/avr.md