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[Bug target/69252] [4.9/5/6 Regression] gcc.dg/vect/vect-iv-9.c FAILs with -Os -fmodulo-sched -fmodulo-sched-allow-regmoves -fsched-pressure
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 14 Jan 2016 11:52:25 +0000
- Subject: [Bug target/69252] [4.9/5/6 Regression] gcc.dg/vect/vect-iv-9.c FAILs with -Os -fmodulo-sched -fmodulo-sched-allow-regmoves -fsched-pressure
- Auto-submitted: auto-generated
- References: <bug-69252-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69252
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #4)
> Thanks for your help! I can confirm that the first patch fixes the problem
> in the test cases on powerpc64le. (I haven't done any other testing with
> it.)
Martin, do you think you could
a) bootstrap/regtest it
b) try make check -jN
RUNTESTFLAGS='--target_board=unix/fmodulo-sched/-fmodulo-sched-allow-regmoves/-fsched-pressure'
with unpatched vs. patched, see if it doesn't regress any test and perhaps
improves some other than this one
c) maybe try even bootstrap/regtest with both unpatched/patched compiler
changed to use these 3 options by default and see if we don't regress there?
Because a) is probably very insufficient testing here, given the insufficient
SMS testsuite coverage.