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[Bug tree-optimization/40073] Vector short/char shifts generate sub-optimal code
- From: "alalaw01 at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 12 Jun 2015 11:39:15 +0000
- Subject: [Bug tree-optimization/40073] Vector short/char shifts generate sub-optimal code
- Auto-submitted: auto-generated
- References: <bug-40073-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40073
--- Comment #8 from alalaw01 at gcc dot gnu.org ---
Is there a case where the result is different with vs without all the
extending/truncating?
It seems we should need the extending/truncating on vectors exactly iff we need
it on scalars?