PR ipa/61998 Fix crash -Wsuggest-final-types crash

-Wsuggest-final-types crashes when used on mininal testcases.
Fix by bailing out early when odr_types_ptr is NULL in ipa_devirt()

2014-09-19  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR ipa/61998
        * ipa-devirt.c (ipa_devirt): Bail out if odr_types_ptr is NULL.

2014-09-19  Markus Trippelsdorf  <markus@trippelsdorf.de>

        PR ipa/61998
        * g++.dg/warn/Wsuggest-final-2.C: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215392 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c2200fc..0dc7b33 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-09-19  Markus Trippelsdorf  <markus@trippelsdorf.de>
+
+       PR ipa/61998
+       * ipa-devirt.c (ipa_devirt): Bail out if odr_types_ptr is NULL.
+
 2014-09-19  James Greenhalgh  <james.greenhalgh@arm.com>
 
        * doc/md.texi (Modifiers): Consistently use "read/write"

diff --git a/gcc/ipa-devirt.c b/gcc/ipa-devirt.c
index 0a11eb7..61e87e8 100644 (file)
--- a/gcc/ipa-devirt.c
+++ b/gcc/ipa-devirt.c
@@ -3952,6 +3952,9 @@ ipa_devirt (void)
   int nmultiple = 0, noverwritable = 0, ndevirtualized = 0, nnotdefined = 0;
   int nwrong = 0, nok = 0, nexternal = 0, nartificial = 0;
 
+  if (!odr_types_ptr)
+    return 0;
+
   /* We can output -Wsuggest-final-methods and -Wsuggest-final-types warnings.
      This is implemented by setting up final_warning_records that are updated
      by get_polymorphic_call_targets.

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b0f2bc8..747aad8 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-09-19  Markus Trippelsdorf  <markus@trippelsdorf.de>
+
+       PR ipa/61998
+       * g++.dg/warn/Wsuggest-final-2.C: New testcase.
+
 2014-09-19  Joost VandeVondele  <vondele@gcc.gnu.org>
 
        PR fortran/63152

diff --git a/gcc/testsuite/g++.dg/warn/Wsuggest-final-2.C b/gcc/testsuite/g++.dg/warn/Wsuggest-final-2.C
new file mode 100644 (file)
index 0000000..51e466d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wsuggest-final-2.C
@@ -0,0 +1,4 @@
+// PR ipa/61998
+// { dg-do compile }
+// { dg-options "-O2 -Wsuggest-final-types" }
+int main () {}