| Message ID | CAKdSQZ=hffSFDQ2ZE8dpxS7tQPrY3iBmjmHCzX_xSfqLBXC-yw@mail.gmail.com |
|---|---|
| State | New |
| Headers | show |
On Mon, Feb 18, 2013 at 7:44 PM, Igor Zamyatin <izamyatin@gmail.com> wrote: > This small change enables FP reassociation for AVX2 processors. This > gives ~+1.5% in performance geomean for spec2006FP tests. > > Bootstrapped/regtested on x86_64-linux, ok for trunk? > > > 2013-02-14 Igor Zamyatin <igor.zamyatin@intel.com> > > * config/i386/i386.c (initial_ix86_tune_features): Turn on fp > reassociation for avx2 targets. OK (it is a tuning patch). Thanks, Uros.
> OK (it is a tuning patch). > Hi, Checked in: http://gcc.gnu.org/ml/gcc-cvs/2013-02/msg00540.html Thanks, K
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index caf4894..cb84866 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -2021,7 +2021,7 @@ static unsigned int initial_ix86_tune_features[X86_TUNE_LAST] = { /* X86_TUNE_REASSOC_FP_TO_PARALLEL: Try to produce parallel computations during reassociation of fp computation. */ - m_ATOM, + m_ATOM | m_HASWELL, /* X86_TUNE_GENERAL_REGS_SSE_SPILL: Try to spill general regs to SSE
Hi! This small change enables FP reassociation for AVX2 processors. This gives ~+1.5% in performance geomean for spec2006FP tests. Bootstrapped/regtested on x86_64-linux, ok for trunk? 2013-02-14 Igor Zamyatin <igor.zamyatin@intel.com> * config/i386/i386.c (initial_ix86_tune_features): Turn on fp reassociation for avx2 targets. regs instead of memory. */