On 9/23/20 5:02 PM, Martin Jambor wrote:
Hi,

On Wed, Sep 23 2020, Martin Liška wrote:
There's patch that does that.

Patch can bootstrap on x86_64-linux-gnu and survives regression tests.

Ready to be installed?
Thanks,
Martin
 From ff5f78110684ed9aedde15d19e856b3acf649971 Mon Sep 17 00:00:00 2001
From: Martin Liska <mli...@suse.cz>
Date: Wed, 23 Sep 2020 15:10:43 +0200
Subject: [PATCH] Port IPA CP time and size to sreal

gcc/ChangeLog:

        * ipa-cp.c (ipcp_lattice::print): Print sreal values
        with to_double.
        (incorporate_penalties): Change type to sreal.
        (good_cloning_opportunity_p): Change args to sreal.
        (get_max_overall_size): Work in sreal type.
        (estimate_local_effects): Likewise.
        (safe_add): Remove.
        (value_topo_info::propagate_effects): Work in sreal type.
        (ipcp_propagate_stage): Print sreal numbers.
        (decide_about_value): Work in sreal type.
---
  gcc/ipa-cp.c | 128 ++++++++++++++++++++++++---------------------------
  1 file changed, 59 insertions(+), 69 deletions(-)

diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
index b3e7d41ea10..9a79b5862f8 100644
@@ -3224,8 +3226,9 @@ incorporate_penalties (cgraph_node *node, ipa_node_params 
*info,
     potential new clone in FREQUENCIES.  */
static bool
-good_cloning_opportunity_p (struct cgraph_node *node, int time_benefit,
-                           int freq_sum, profile_count count_sum, int 
size_cost)
+good_cloning_opportunity_p (struct cgraph_node *node, sreal time_benefit,
+                           sreal freq_sum, profile_count count_sum,

Is the change of type of freq_sum intentional?  Even with this patch,
all the callers will keep passing their frequency sums as ints and so
the implicit conversion seems a bit misleading.

I guess complete transition to sreals would include also switch from
using cgraph_edge::frequency to sreal_frequency in
get_info_about_necessary_edges and users of struct caller_statistics.

Hello.

All right, I'm leaving that to you Martin ;) You are much more familiar
with the code base.

Martin


I planned to work on conversions to sreals right after resolving various
exchange2 issues and I can still do this bit afterwards, but the change
in the parameter type looks like you wanted to but eventually did not?

Thanks,

Martin



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