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[Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
- From: "ysrumyan at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 21 Oct 2013 14:37:26 +0000
- Subject: [Bug rtl-optimization/58826] Runfail on CPU2006 436.cactusADM with after r203377 for core-avx2 target.
- Auto-submitted: auto-generated
- References: <bug-58826-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826
--- Comment #2 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
In fact LRA is responsible for this failure - there is a bug in constant
regeneration. LRA correctly regenerates all occurrences of virtual register
which is not allocated(i.e. it does not has a register) but it must delete its
spill/reload since this virtual register is dead.