Ping? https://gcc.gnu.org/ml/gcc-patches/2014-10/msg02025.html
Thanks Hale Wang > -----Original Message----- > From: Hale Wang [mailto:hale.w...@arm.com] > Sent: Tuesday, October 21, 2014 5:57 PM > To: Hale Wang; gcc-patches@gcc.gnu.org > Subject: RE: [PATCH] Add arm_cortex_m7_tune. > > Attach the patch. > > > -----Original Message----- > > From: gcc-patches-ow...@gcc.gnu.org [mailto:gcc-patches- > > ow...@gcc.gnu.org] On Behalf Of Hale Wang > > Sent: Tuesday, October 21, 2014 5:49 PM > > To: gcc-patches@gcc.gnu.org > > Subject: [PATCH] Add arm_cortex_m7_tune. > > > > Hi, > > > > This patch is used to tune the gcc for Cortex-M7. > > > > The performance of Dhrystone can be improved by 1%. > > The performance of Coremark can be improved by 2.3%. > > > > Patch also attached for convenience. > > > > Is it ok for trunk? > > > > Thanks and Best Regards, > > Hale Wang > > > > gcc/ChangeLog > > 2014-10-11 Hale Wang <hale.w...@arm.com> > > > > * config/arm/arm.c: Add cortex-m7 tune. > > * config/arm/arm-cores.def: Use cortex-m7 tune. > > > > diff --git a/gcc/config/arm/arm-cores.def > > b/gcc/config/arm/arm-cores.def index 56ec7fd..3b34173 100644 > > --- a/gcc/config/arm/arm-cores.def > > +++ b/gcc/config/arm/arm-cores.def > > @@ -149,7 +149,7 @@ ARM_CORE("cortex-r4", > > cortexr4, cortexr4, 7R, FL_LDSCHED, cortex) > > ARM_CORE("cortex-r4f", cortexr4f, cortexr4f, > > 7R, FL_LDSCHED, cortex) > > ARM_CORE("cortex-r5", cortexr5, cortexr5, > > 7R, FL_LDSCHED | FL_ARM_DIV, cortex) > > ARM_CORE("cortex-r7", cortexr7, cortexr7, > > 7R, FL_LDSCHED | FL_ARM_DIV, cortex) > > -ARM_CORE("cortex-m7", cortexm7, cortexm7, > > 7EM, FL_LDSCHED, v7m) > > +ARM_CORE("cortex-m7", cortexm7, cortexm7, > > 7EM, FL_LDSCHED, cortex_m7) > > ARM_CORE("cortex-m4", cortexm4, cortexm4, > > 7EM, FL_LDSCHED, v7m) > > ARM_CORE("cortex-m3", cortexm3, cortexm3, > > 7M, FL_LDSCHED, v7m) > > ARM_CORE("marvell-pj4", marvell_pj4, marvell_pj4, > > 7A, FL_LDSCHED, 9e) > > diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index > > 93b989d..834b13a 100644 > > --- a/gcc/config/arm/arm.c > > +++ b/gcc/config/arm/arm.c > > @@ -2003,6 +2003,27 @@ const struct tune_params arm_v7m_tune = > > 8 > > /* Maximum insns to inline memset. */ }; > > > > +/* Cortex-M7 tuning. */ > > + > > +const struct tune_params arm_cortex_m7_tune = { > > + arm_9e_rtx_costs, > > + &v7m_extra_costs, > > + NULL, > > /* Sched adj cost. */ > > + 0, > > /* Constant limit. */ > > + 0, > > /* Max cond insns. */ > > + ARM_PREFETCH_NOT_BENEFICIAL, > > + true, > > /* Prefer constant pool. */ > > + arm_cortex_m_branch_cost, > > + false, > > /* Prefer LDRD/STRD. */ > > + {true, true}, > > /* Prefer non short circuit. */ > > + &arm_default_vec_cost, /* Vectorizer costs. */ > > + false, /* Prefer Neon for 64-bits > > bitops. */ > > + false, false, /* Prefer 32-bit encodings. > > */ > > + false, > > /* Prefer Neon for stringops. */ > > + 8 > > /* Maximum insns to inline memset. */ > > +}; > > + > > /* The arm_v6m_tune is duplicated from arm_cortex_tune, rather than > > arm_v6t2_tune. It is used for cortex-m0, cortex-m1 and cortex-m0plus. > > */ > > const struct tune_params arm_v6m_tune = > > > > > >
cortex-m7-tune-2.patch
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