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[Bug target/59609] [4.9 Regression] LRA generates bad code for libgcc function udivmoddi4 on thumb1 target
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 27 Dec 2013 06:06:45 +0000
- Subject: [Bug target/59609] [4.9 Regression] LRA generates bad code for libgcc function udivmoddi4 on thumb1 target
- Auto-submitted: auto-generated
- References: <bug-59609-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59609
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Terry Guo from comment #1)
> Here are some investigations. In the dump of IRA pass, we have jump insn
> like:
And this is why the old saying of reload not cannot reload a jump instruction
comes true.