| Message ID | 1294691517-19580-16-git-send-email-rth@redhat.com |
|---|---|
| State | New |
| Headers | show |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 01/10/11 13:31, Richard Henderson wrote: > From: Richard Henderson <rth@twiddle.net> > > There are a number of tests that fail -- generally ones involving > generic vectorization -- at -O0 because we run out of registers. > The lower-subreg pass cleans things up sufficiently to allow these > tests to succeed. OK. Jeff -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJNLbR0AAoJEBRtltQi2kC7Px0H/RRI+fS9ohL7lImU37bvgdLS KJaaEbF5HBMRiuMjixsy8aaZjQeF1QUIm/wTAqT+AnyevjZjWMIPBy9fBk2MSJXR 6UEzAM3PxgZw/f3x5E16fDRAOH11IpmeKnSRaLWPqMakHw+4swm4ITOVgBpr+Dqe p5hNmxYumlZUzZZ3YBXLQjNgV2Ioo0BAPlfuQh2ERt3RWVxV+VU3E18L8xw9bwvk kyIFr/mbVc4rB8OE4Zkh5VeGV+P68E4oL1ZTyEqwhn8eEnShKCVoIu1ePdR3tJoF yt7asjiB1JMurOUwhW4j1h5+hM3OuuG6x28/Rca/KJ/t48Yl+GIqJJHIzhJ65Cg= =Gjp1 -----END PGP SIGNATURE-----
diff --git a/gcc/config/mn10300/mn10300.c b/gcc/config/mn10300/mn10300.c index 32fb57d..f9dab21 100644 --- a/gcc/config/mn10300/mn10300.c +++ b/gcc/config/mn10300/mn10300.c @@ -127,6 +127,12 @@ mn10300_option_override (void) not have timing information available for it. */ flag_schedule_insns = 0; flag_schedule_insns_after_reload = 0; + + /* Force enable splitting of wide types, as otherwise it is trivial + to run out of registers. Indeed, this works so well that register + allocation problems are now more common *without* optimization, + when this flag is not enabled by default. */ + flag_split_wide_types = 1; } if (mn10300_tune_string)
From: Richard Henderson <rth@twiddle.net> There are a number of tests that fail -- generally ones involving generic vectorization -- at -O0 because we run out of registers. The lower-subreg pass cleans things up sufficiently to allow these tests to succeed. --- gcc/config/mn10300/mn10300.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)