From: Jan Hubicka <hubicka@ucw.cz>
Date: Sun, 16 Jul 2017 16:35:00 +0000 (+0200)
Subject: cfgloopmanip.c (scale_loop_profile): Avoid use of REG_BR_PROB_BASE fixpoint arithmetics.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b2ff44a8ebcc67ba914ce3bd60eafec23da5bff8;p=gcc.git

cfgloopmanip.c (scale_loop_profile): Avoid use of REG_BR_PROB_BASE fixpoint arithmetics.


	* cfgloopmanip.c (scale_loop_profile): Avoid use of REG_BR_PROB_BASE
	fixpoint arithmetics.

From-SVN: r250242
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 849de45f2c8..ccceea51091 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-07-16  Jan Hubicka  <hubicka@ucw.cz>
+
+	* cfgloopmanip.c (scale_loop_profile): Avoid use of REG_BR_PROB_BASE
+	fixpoint arithmetics.
+
 2017-07-16  Jan Hubicka  <hubicka@ucw.cz>
 
 	* tree-ssa-loop-unswitch.c (hoist_guard): Avoid use of REG_BR_PROB_BASE
diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index 3f4ff988c74..f62c829bd5f 100644
--- a/gcc/cfgloopmanip.c
+++ b/gcc/cfgloopmanip.c
@@ -546,8 +546,8 @@ scale_loop_profile (struct loop *loop, profile_probability p,
 
 	  /* Probability of exit must be 1/iterations.  */
 	  freq_delta = EDGE_FREQUENCY (e);
-	  e->probability = profile_probability::from_reg_br_prob_base
-				(REG_BR_PROB_BASE / iteration_bound);
+	  e->probability = profile_probability::always ()
+				.apply_scale (1, iteration_bound);
 	  other_e->probability = e->probability.invert ();
 	  freq_delta -= EDGE_FREQUENCY (e);