Hi!
Once mangle_decl warns once about the mangling changes for C++1z,
it warns about all following symbols, including stuff like <built-in>,
.L* symbols etc. or any other symbols that are not affected by the
exception specification mangling changes.
Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux,
approved by Jason in the PR, committed to trunk.
2016-11-09 Jakub Jelinek <ja...@redhat.com>
PR c++/78283
* mangle.c (start_mangling): Reset G.need_cxx1z_warning.
* g++.dg/cpp1z/noexcept-type13.C: New test.
--- gcc/cp/mangle.c.jj 2016-11-09 15:22:35.000000000 +0100
+++ gcc/cp/mangle.c 2016-11-09 21:45:44.013378262 +0100
@@ -3649,6 +3649,7 @@ start_mangling (const tree entity)
{
G.entity = entity;
G.need_abi_warning = false;
+ G.need_cxx1z_warning = false;
obstack_free (&name_obstack, name_base);
mangle_obstack = &name_obstack;
name_base = obstack_alloc (&name_obstack, 0);
--- gcc/testsuite/g++.dg/cpp1z/noexcept-type13.C.jj 2016-11-09
21:43:45.835873413 +0100
+++ gcc/testsuite/g++.dg/cpp1z/noexcept-type13.C 2016-11-09
21:44:32.906277891 +0100
@@ -0,0 +1,14 @@
+// PR c++/78283
+// { dg-do compile }
+// { dg-options "-Wall" }
+
+void foo () throw () {} // { dg-bogus "mangled name" }
+
+template <class T>
+T bar (T x) { return x; } // { dg-warning "mangled name" "" { target
c++14_down } }
+
+void baz () { // { dg-bogus "mangled name" }
+ return (bar (foo)) ();
+}
+
+void decl () {} // { dg-bogus "mangled name" }
Jakub
