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[Bug target/53976] [SH] Unnecessary clrt/sett after bt/bf
- From: "olegendo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 23 Nov 2014 17:36:59 +0000
- Subject: [Bug target/53976] [SH] Unnecessary clrt/sett after bt/bf
- Auto-submitted: auto-generated
- References: <bug-53976-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53976
--- Comment #9 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Created attachment 34078
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34078&action=edit
Reduced problem from linux kernel
This one exposes a problem of the sh_optimize_sett_clrt RTL pass, where it will
try to visit/evaluate too many basic blocks/edges and eventually run out of
memory.