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[Bug tree-optimization/50713] SLP vs loop: code generated differs (SLP less efficient)
- From: "glisse at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 25 Oct 2012 14:47:57 +0000
- Subject: [Bug tree-optimization/50713] SLP vs loop: code generated differs (SLP less efficient)
- Auto-submitted: auto-generated
- References: <bug-50713-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50713
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |glisse at gcc dot gnu.org
--- Comment #6 from Marc Glisse <glisse at gcc dot gnu.org> 2012-10-25 14:47:57 UTC ---
There is a huge number of movs, something could probably be done in the
back-end. But already in the middle-end, the simplification of a bit_field_ref
of a constructor should be extended to handle bit_field_refs larger than 1
element (and constructor elements that are vectors themselves).