From: amker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 15 Sep 2015 02:12:47 +0000 (+0000)
Subject: 	* tree-ssa-loop-ivopts.c (get_shiftadd_cost): Strip
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=886ce5bb41bb27357bf7dc1479cb3bd93b45810b;p=thirdparty%2Fgcc.git

	* tree-ssa-loop-ivopts.c (get_shiftadd_cost): Strip
	unnecessary type conversion in op1.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227776 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 328675a87de2..16862d057cb6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-09-15  Bin Cheng  <bin.cheng@arm.com>
+
+	* tree-ssa-loop-ivopts.c (get_shiftadd_cost): Strip
+	unnecessary type conversion in op1.
+
 2015-09-14  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* shrink-wrap.c (requires_stack_frame_p): Fix formatting.
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c
index 723a9f7f5bc5..ae14e8b79814 100644
--- a/gcc/tree-ssa-loop-ivopts.c
+++ b/gcc/tree-ssa-loop-ivopts.c
@@ -3889,6 +3889,7 @@ get_shiftadd_cost (tree expr, machine_mode mode, comp_cost cost0,
   if (!(m >= 0 && m < maxm))
     return false;
 
+  STRIP_NOPS (op1);
   mult_in_op1 = operand_equal_p (op1, mult, 0);
 
   as_cost = add_cost (speed, mode) + shift_cost (speed, mode, m);