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[Bug rtl-optimization/64537] Aarch64 redundant sxth instruction gets generated
- From: "ramana at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 28 Jan 2015 11:40:53 +0000
- Subject: [Bug rtl-optimization/64537] Aarch64 redundant sxth instruction gets generated
- Auto-submitted: auto-generated
- References: <bug-64537-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64537
Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-01-28
CC| |ramana at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #6 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
(In reply to kugan from comment #5)
> Is this sort of multiple-use potential candidate for ree pass? Haven't
> looked ree in detail yet.
IIRC REE can deal with multiple-use potential candidates, however it probably
needs some work to look into the complex zero/sign-extension patterns that the
AArch64 port has. This is certainly not 5.0 material though now :)