This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: Reduce complette unrolling & peeling limits
- From: dominiq at lps dot ens dot fr (Dominique Dhumieres)
- To: gcc-patches at gcc dot gnu dot org
- Cc: ebotcazou at adacore dot com, hubicka at ucw dot cz
- Date: Sun, 18 Nov 2012 14:35:35 +0100
- Subject: Re: Reduce complette unrolling & peeling limits
> Did you notice that gcc.c-torture/compile/pr43186.c regressed? It now again
> takes a while to compile, so times out on slow machines:
> ...
On a 2.5Ghz Core2Duo, compiling the test with revision 192891 (2012-10-28)
takes a small fraction of a second, while with revision 193270 (2012-11-06)
it takes ~25s.
However this patch makes gfortran.dg/reassoc_4.f to fail
FAIL: gfortran.dg/reassoc_4.f -O scan-tree-dump-times reassoc1 "[0-9] \\\\* " 22
After it 22 should be replaced with 16 (thresshold max-completely-peeled-insns=138
gives 16, =139 gives 22).
Dominique