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[Bug target/54089] [SH] Refactor shift patterns
- From: "olegendo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 13 Nov 2012 01:13:55 +0000
- Subject: [Bug target/54089] [SH] Refactor shift patterns
- Auto-submitted: auto-generated
- References: <bug-54089-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54089
--- Comment #28 from Oleg Endo <olegendo at gcc dot gnu.org> 2012-11-13 01:13:55 UTC ---
(In reply to comment #27)
> FWIW, while the ARC600/700 have a full set up static and dynamic shifts,
> the ARC 601 with the swap option has similar issues with shifts that should
> be stitched together from multiple instructions, and preferences of unsigned
> over signed shifts.
Ah, good to know that SH is not the only case where it would make sense.
I've created another PR for this issue: PR 55306