https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77287
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ra
Target| |x86_64-*-*, i?86-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-18
CC| |vmakarov at gcc dot gnu.org
Component|target |rtl-optimization
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
-fschedule-insns improves things here - and LRA seems to be more happy to
spill/reload rather than rematerialize. But in the end the testcase requires
careful scheduling of the operations to reduce register lifetime and thus
allow optimal RA with the limited number of registers available.
We force a frame pointer because we have to re-align the stack for possible
spills.
