Bail out when ipa_fn_summaries does not contain entry for callee (PR ipa/88958).

2019-02-04  Martin Liska  <mliska@suse.cz>

	PR ipa/88958
	* ipa-fnsummary.c (estimate_edge_devirt_benefit): Bail
	out when ipa_fn_summaries does not contain entry for callee.
2019-02-04  Martin Liska  <mliska@suse.cz>

	PR ipa/88958
	* gcc.dg/ipa/pr88958.c: New test.

From-SVN: r268516

gcc/ChangeLog

+2019-02-04  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/88958
+	* ipa-fnsummary.c (estimate_edge_devirt_benefit): Bail
+	out when ipa_fn_summaries does not contain entry for callee.
+
 2019-02-04  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* config/sparc/sparc.h: Remove superfluous blank lines.

gcc/ipa-fnsummary.c

@@ -2582,6 +2582,9 @@ estimate_edge_devirt_benefit (struct cgraph_edge *ie,
   if (avail < AVAIL_AVAILABLE)
     return false;
   isummary = ipa_fn_summaries->get (callee);
+  if (isummary == NULL)
+    return false;
+
   return isummary->inlinable;
 }
 

gcc/testsuite/ChangeLog

+2019-02-04  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/88958
+	* gcc.dg/ipa/pr88958.c: New test.
+
 2019-02-04  Jakub Jelinek  <jakub@redhat.com>
 
 	* gcc.dg/debug/dwarf2/inline5.c: Handle also @, ; or | comment

gcc/testsuite/gcc.dg/ipa/pr88958.c

+void f (void)
+{
+}
+__attribute__((__optimize__("O2")))
+void g (void f())
+{
+  f();
+}
+__attribute__((__optimize__("O2")))
+void h (void)
+{
+  g(f);
+}