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From: rep.dot.nop@gmail.com
To: gcc-patches@gcc.gnu.org, Jan Hubicka <hubicka@ucw.cz>,
	Jakub Jelinek <jakub@redhat.com>
Subject: Re: Fix merging of value predictors
Date: Fri, 19 Jan 2024 22:37:24 +0100	[thread overview]
Message-ID: <9B8764F0-A664-4825-8AA8-B6B070452315@gmail.com> (raw)
In-Reply-To: <ZafUMZwLyIRU1q3F@kam.mff.cuni.cz>

On 17 January 2024 14:20:49 CET, Jan Hubicka <hubicka@ucw.cz> wrote:

>--- a/gcc/predict.def
>+++ b/gcc/predict.def
>@@ -94,6 +94,16 @@ DEF_PREDICTOR (PRED_LOOP_ITERATIONS_GUESSED, "guessed loop iterations",
> DEF_PREDICTOR (PRED_LOOP_ITERATIONS_MAX, "guessed loop iterations",
> 	       PROB_UNINITIALIZED, PRED_FLAG_FIRST_MATCH)
> 
>+/* Prediction which is an outcome of combining multiple value predictions.  */
>+DEF_PREDICTOR (PRED_COMBINED_VALUE_PREDICTIONS,
>+	       "combined value predictions", PROB_UNINITIALIZED, 0)
>+
>+/* Prediction which is an outcome of combining multiple value predictions
>+   on PHI statement (this is less accurate since we do not know reverse
>+   edge probabilities at that time).  */
>+DEF_PREDICTOR (PRED_COMBINED_VALUE_PREDICTIONS_PHI,
>+	       "combined value predictions", PROB_UNINITIALIZED, 0)
>+

Do you want to add "phi" somewhere to the latter (to distinguish them in the dumps)?

thanks

      reply	other threads:[~2024-01-19 21:37 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-17 12:45 Jan Hubicka
2024-01-17 12:50 ` Jakub Jelinek
2024-01-17 13:20   ` Jan Hubicka
2024-01-19 21:37     ` rep.dot.nop [this message]

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