re PR c++/65858 (ICE in varpool_node::get_constructor during chromium build on…

re PR c++/65858 (ICE in varpool_node::get_constructor during chromium build on arm-linux-gnueabihf with LTO during LINK chrome)

/cp
2015-05-01  Paolo Carlini  <paolo.carlini@oracle.com>
	    Prathamesh Kulharni  <prathamesh.kulkarni@linaro.org>

	PR c++/65858
	* typeck2.c (check_narrowing): Set ok = true when pedwarn returns
	false.

/testsuite
2015-05-01  Paolo Carlini  <paolo.carlini@oracle.com>
	    Prathamesh Kulharni  <prathamesh.kulkarni@linaro.org>

	PR c++/65858
	* g++.dg/cpp0x/Wnarrowing4.C: New.

Co-Authored-By: Prathamesh Kulharni <prathamesh.kulkarni@linaro.org>

From-SVN: r222699

gcc/cp/ChangeLog

+2015-05-01  Paolo Carlini  <paolo.carlini@oracle.com>
+	    Prathamesh Kulharni  <prathamesh.kulkarni@linaro.org>
+
+	PR c++/65858
+	* typeck2.c (check_narrowing): Set ok = true when pedwarn returns
+	false.
+
 2015-04-30  David Malcolm  <dmalcolm@redhat.com>
 
 	* cp-tree.h (ARGUMENT_PACK_SELECT_ARG): Remove spurious

gcc/cp/typeck2.c

@@ -959,9 +959,10 @@ check_narrowing (tree type, tree init, tsubst_flags_t complain)
       else if (complain & tf_error)
 	{
 	  global_dc->pedantic_errors = 1;
-	  pedwarn (EXPR_LOC_OR_LOC (init, input_location), OPT_Wnarrowing,
-		   "narrowing conversion of %qE from %qT to %qT inside { }",
-		   init, ftype, type);
+	  if (!pedwarn (EXPR_LOC_OR_LOC (init, input_location), OPT_Wnarrowing,
+			"narrowing conversion of %qE from %qT to %qT "
+			"inside { }", init, ftype, type))
+	    ok = true;
 	  global_dc->pedantic_errors = flag_pedantic_errors;
 	}
     }

gcc/testsuite/ChangeLog

+2015-05-01  Paolo Carlini  <paolo.carlini@oracle.com>
+	    Prathamesh Kulharni  <prathamesh.kulkarni@linaro.org>
+
+	PR c++/65858
+	* g++.dg/cpp0x/Wnarrowing4.C: New.
+
 2015-05-01  Rasmus Villemoes  <rv@rasmusvillemoes.dk>
 
 	* gcc.dg/20150120-1.c: New test.

gcc/testsuite/g++.dg/cpp0x/Wnarrowing4.C

+// PR c++/65858
+// { dg-do compile { target c++11 } }
+// { dg-require-effective-target lto }
+// { dg-options "-flto -Wno-narrowing" }
+
+int x { 0.5 };