Do not put gimple stmt on an abnormal edge (PR sanitizer/82545).

2017-10-18  Martin Liska  <mliska@suse.cz>

	PR sanitizer/82545
	* asan.c (asan_expand_poison_ifn): Do not put gimple stmt
	on an abnormal edge.
2017-10-18  Martin Liska  <mliska@suse.cz>

	PR sanitizer/82545
	* gcc.dg/asan/pr82545.c: New test.

From-SVN: r253845

gcc/ChangeLog

+2017-10-18  Martin Liska  <mliska@suse.cz>
+
+	PR sanitizer/82545
+	* asan.c (asan_expand_poison_ifn): Do not put gimple stmt
+	on an abnormal edge.
+
 2017-10-18  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 
 	* doc/invoke.texi (ffunction-sections and fdata-sections):

gcc/asan.c

@@ -3400,6 +3400,10 @@ asan_expand_poison_ifn (gimple_stmt_iterator *iter,
 	      {
 		edge e = gimple_phi_arg_edge (phi, i);
 
+		/* Do not insert on an edge we can't split.  */
+		if (e->flags & EDGE_ABNORMAL)
+		  continue;
+
 		if (call_to_insert == NULL)
 		  call_to_insert = gimple_copy (call);
 

gcc/testsuite/ChangeLog

+2017-10-18  Martin Liska  <mliska@suse.cz>
+
+	PR sanitizer/82545
+	* gcc.dg/asan/pr82545.c: New test.
+
 2017-10-18  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/69057

gcc/testsuite/gcc.dg/asan/pr82545.c

+/* PR sanitizer/82545.  */
+/* { dg-do compile } */
+
+extern void c(int);
+extern void d(void);
+
+void *buf[5];
+
+void a(void) {
+  {
+    int b;
+    &b;
+    __builtin_setjmp(buf);
+    c(b);
+  }
+  d();
+}