From: Martin Jambor <mjambor@suse.cz>
Date: Tue, 21 Feb 2017 14:01:52 +0000 (+0100)
Subject: [PR 79579] Avoid segfault on NULL ipa_edge_args_vector
X-Git-Tag: basepoints/gcc-8~886
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=03108bad95b96d9dad75dc99482d652ea9a749c5;p=thirdparty%2Fgcc.git

[PR 79579] Avoid segfault on NULL ipa_edge_args_vector

2017-02-21  Martin Jambor  <mjambor@suse.cz>

	PR lto/79579
	* ipa-prop.c (ipa_prop_write_jump_functions): Bail out if no edges
	have been analyzed.

From-SVN: r245628
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3f398f49be91..1286f16d5462 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-02-21  Martin Jambor  <mjambor@suse.cz>
+
+	PR lto/79579
+	* ipa-prop.c (ipa_prop_write_jump_functions): Bail out if no edges
+	have been analyzed.
+
 2017-02-21  Martin Jambor  <mjambor@suse.cz>
 
 	* common.opt (-fipa-cp-alignment): Mark as ignored and preserved
diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c
index e4e44ce20c69..33503d4befcb 100644
--- a/gcc/ipa-prop.c
+++ b/gcc/ipa-prop.c
@@ -5040,7 +5040,7 @@ ipa_prop_write_jump_functions (void)
   lto_symtab_encoder_iterator lsei;
   lto_symtab_encoder_t encoder;
 
-  if (!ipa_node_params_sum)
+  if (!ipa_node_params_sum || !ipa_edge_args_vector)
     return;
 
   ob = create_output_block (LTO_section_jump_functions);