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From: Richard Guenther <richard.guenther@gmail.com>
To: Sebastian Pop <sebpop@gmail.com>
Cc: gcc-patches@gcc.gnu.org, gcc-graphite@googlegroups.com
Subject: Re: [PATCH 06/12] Bump the size of scevs.
Date: Fri, 16 Jul 2010 08:03:00 -0000	[thread overview]
Message-ID: <AANLkTinmXehC53wkum5N_uXSZ7UgWJf4sEvUacEGj47Q@mail.gmail.com> (raw)
In-Reply-To: <1279263843-9149-7-git-send-email-sebpop@gmail.com>

On Fri, Jul 16, 2010 at 9:03 AM, Sebastian Pop <sebpop@gmail.com> wrote:
> 2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>
>
>        * params.def (PARAM_SCEV_MAX_EXPR_SIZE): Bump the value to 100.

What's the effect on compile-time here?

Richard.

> ---
>  gcc/ChangeLog.graphite |    4 ++++
>  gcc/params.def         |    2 +-
>  2 files changed, 5 insertions(+), 1 deletions(-)
>
> diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite
> index 8408cf2..d75912c 100644
> --- a/gcc/ChangeLog.graphite
> +++ b/gcc/ChangeLog.graphite
> @@ -1,5 +1,9 @@
>  2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>
>
> +       * params.def (PARAM_SCEV_MAX_EXPR_SIZE): Bump the value to 100.
> +
> +2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>
> +
>        * cfgloop.c (alloc_loop): Remove initialization of loop->single_iv.
>        * cfgloop.h (struct loop): Remove single_iv field.
>        * graphite-sese-to-poly.c (graphite_loop_normal_form): Removed.
> diff --git a/gcc/params.def b/gcc/params.def
> index 35650ff..5a91e74 100644
> --- a/gcc/params.def
> +++ b/gcc/params.def
> @@ -438,7 +438,7 @@ DEFPARAM(PARAM_IV_ALWAYS_PRUNE_CAND_SET_BOUND,
>  DEFPARAM(PARAM_SCEV_MAX_EXPR_SIZE,
>         "scev-max-expr-size",
>         "Bound on size of expressions used in the scalar evolutions analyzer",
> -        20, 0, 0)
> +        100, 0, 0)
>
>  DEFPARAM(PARAM_OMEGA_MAX_VARS,
>         "omega-max-vars",
> --
> 1.7.0.4
>
>

  reply	other threads:[~2010-07-16  8:03 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-16  7:04 [PATCH 00/12] [graphite] Remove the induction variable canonicalization Sebastian Pop
2010-07-16  7:04 ` [PATCH 03/12] chrec_apply should only apply to the specified variable Sebastian Pop
2010-07-16  7:04 ` [PATCH 07/12] Scevs could be expressions without chrecs and still be scev_analyzable_p Sebastian Pop
2010-07-16  7:04 ` [PATCH 09/12] Add testcase for PR42729 and fix handling of gimple_debug info Sebastian Pop
2010-07-16  7:05 ` [PATCH 01/12] Remove insert_loop_close_phis Sebastian Pop
2010-07-16  7:05 ` [PATCH 05/12] Remove uses of loop->single_iv Sebastian Pop
2010-07-16  7:05 ` [PATCH 08/12] Special case non close-phi nodes with one argument in rewrite_close_phi_out_of_ssa Sebastian Pop
2010-07-16  7:05 ` [PATCH 12/12] Unshare the scev before code generating it Sebastian Pop
2010-07-16  7:05 ` [PATCH 11/12] Do not rewrite out of SSA scalar phi nodes that can be scev_analyzable_p Sebastian Pop
2010-07-16  7:05 ` [PATCH 06/12] Bump the size of scevs Sebastian Pop
2010-07-16  8:03   ` Richard Guenther [this message]
2010-07-16 14:41     ` Sebastian Pop
2010-07-16  7:05 ` [PATCH 10/12] Correctly handle SSA_NAME_IS_DEFAULT_DEF in rewrite_close_phi_out_of_ssa Sebastian Pop
2010-07-16  7:05 ` [PATCH 02/12] Remove expand_scalar_variables_ hack Sebastian Pop
2010-07-16  7:05 ` [PATCH 04/12] Also handle GIMPLE_CALLs in rewrite_cross_bb_scalar_deps Sebastian Pop

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