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[Bug rtl-optimization/43892] PowerPC suboptimal "add with carry" optimization
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 26 Apr 2010 13:39:32 -0000
- Subject: [Bug rtl-optimization/43892] PowerPC suboptimal "add with carry" optimization
- References: <bug-43892-19087@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from jakub at gcc dot gnu dot org 2010-04-26 13:39 -------
config/rs6000/rs6000.md would need to add a add<mode>cc expander and handle
this, then if-conversion can do the rest of the work like it does on i?86.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43892