[Bug target/33431] [SH4] performance regression between 3.4.6 and 4.x

[kkojima at gcc dot gnu dot org]

------- Comment #1 from kkojima at gcc dot gnu dot org  2007-09-14 11:46 -------
I've run scimark on my box:
sh4-unknown-linux-gnu / linux-kernel 2.6.22-rc4 / SH7751R

with -O3 -ffast-math -fomit-frame-pointer -funroll-loops -ftracer
-funit-at-a-time:

                       gcc-3.4.6    gcc-4.2.1    gcc-4.3.0(20070910)
Composite Score:           16.76        16.86        16.99
FFT              Mflops:    12.92        13.36        13.36
SOR              Mflops:    27.88        26.76        28.01
MonteCarlo:    Mflops:     9.96         9.73         9.67
Sparse matmult Mflops:    14.95        16.06        14.84
LU               Mflops:    18.08        18.39        19.05

Hmm... I can't reproduce the regression in linux-sh, at least
for SH7751R.


-- 

kkojima at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kkojima at gcc dot gnu dot
                   |                            |org
            Summary|[SH4] performance regression|[SH4] performance regression
                   |between 3.4.6 and 4.x       |between 3.4.6 and 4.x


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33431