From: Martin Jambor <mjambor@suse.cz>
Date: Mon, 23 May 2016 16:31:14 +0000 (+0200)
Subject: [PR 71234] Avoid valgrind warning in ipa-cp
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=44a71f36580a4e0d05e3d787b4e54991ac26026a;p=gcc.git

[PR 71234] Avoid valgrind warning in ipa-cp

2016-05-23  Martin Jambor  <mjambor@suse.cz>

	PR ipa/71234
	* ipa-cp.c (ipa_get_indirect_edge_target_1): Only check value of
	from_global_constant if t is not NULL.

From-SVN: r236598
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d838407bc0b..f7a012c32bd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-05-23  Martin Jambor  <mjambor@suse.cz>
+
+	PR ipa/71234
+	* ipa-cp.c (ipa_get_indirect_edge_target_1): Only check value of
+	from_global_constant if t is not NULL.
+
 2016-05-23  Marek Polacek  <polacek@redhat.com>
 
 	PR c/49859
diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
index 8caa973e46c..4b7f6bbf31c 100644
--- a/gcc/ipa-cp.c
+++ b/gcc/ipa-cp.c
@@ -2027,7 +2027,8 @@ ipa_get_indirect_edge_target_1 (struct cgraph_edge *ie,
 					      ie->indirect_info->offset,
 					      ie->indirect_info->by_ref,
 					      &from_global_constant);
-	      if (!from_global_constant
+	      if (t
+		  && !from_global_constant
 		  && !ie->indirect_info->guaranteed_unmodified)
 		t = NULL_TREE;
 	    }