From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 16 Oct 2015 03:10:27 +0000 (+0000)
Subject: 	* ipa-icf-gimple.c (func_checker::compare_operand): Compare only
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=63570ab2fe38a535f94d03d002bd493f1a1b8e79;p=thirdparty%2Fgcc.git

	* ipa-icf-gimple.c (func_checker::compare_operand): Compare only
	empty constructors.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228860 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 17e690e33240..dc82c3dc8a24 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-11  Jan Hubicka  <hubicka@ucw.cz>
+
+	* ipa-icf-gimple.c (func_checker::compare_operand): Compare only
+	empty constructors.
+
 2015-10-16  Michael Collison  <michael.collison@linaro.org>
 	    Andrew Pinski <andrew.pinski@caviumnetworks.com>
 
diff --git a/gcc/ipa-icf-gimple.c b/gcc/ipa-icf-gimple.c
index 4696c803617b..934ba9057649 100644
--- a/gcc/ipa-icf-gimple.c
+++ b/gcc/ipa-icf-gimple.c
@@ -415,20 +415,9 @@ func_checker::compare_operand (tree t1, tree t2)
   switch (TREE_CODE (t1))
     {
     case CONSTRUCTOR:
-      {
-	unsigned length1 = vec_safe_length (CONSTRUCTOR_ELTS (t1));
-	unsigned length2 = vec_safe_length (CONSTRUCTOR_ELTS (t2));
-
-	if (length1 != length2)
-	  return return_false ();
-
-	for (unsigned i = 0; i < length1; i++)
-	  if (!compare_operand (CONSTRUCTOR_ELT (t1, i)->value,
-				CONSTRUCTOR_ELT (t2, i)->value))
-	    return return_false();
-
-	return true;
-      }
+      gcc_assert (!vec_safe_length (CONSTRUCTOR_ELTS (t1))
+		  && !vec_safe_length (CONSTRUCTOR_ELTS (t2)));
+      return true;
     case ARRAY_REF:
     case ARRAY_RANGE_REF:
       /* First argument is the array, second is the index.  */