From: Andrea Corallo <andrea.corallo@arm.com>
Date: Fri, 4 Sep 2020 08:56:59 +0000 (+0100)
Subject: vec: dead code removal in tree-vect-loop.c
X-Git-Tag: upstream/12.2.0~13942
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=09fa6acd8d96013cf97046b273642fdefeef7559;p=platform%2Fupstream%2Fgcc.git

vec: dead code removal in tree-vect-loop.c

gcc/ChangeLog

2020-09-04  Andrea Corallo  <andrea.corallo@arm.com>

	* tree-vect-loop.c (vect_estimate_min_profitable_iters): Remove
	dead code as LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo) is
	always verified.
---

diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index 362cdc4..3857638 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -4101,17 +4101,10 @@ vect_estimate_min_profitable_iters (loop_vec_info loop_vinfo,
       if (outside_overhead > 0)
 	min_vec_niters = outside_overhead / saving_per_viter + 1;
 
-      if (LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo))
-	{
-	  int threshold = (vec_inside_cost * min_vec_niters
-			   + vec_outside_cost
-			   + scalar_outside_cost);
-	  min_profitable_estimate = threshold / scalar_single_iter_cost + 1;
-	}
-      else
-	min_profitable_estimate = (min_vec_niters * assumed_vf
-				   + peel_iters_prologue
-				   + peel_iters_epilogue);
+      int threshold = (vec_inside_cost * min_vec_niters
+		       + vec_outside_cost
+		       + scalar_outside_cost);
+      min_profitable_estimate = threshold / scalar_single_iter_cost + 1;
     }
   else
     {