[PATCH][ASan] Avoid ‘void operator delete(void*, size_t)’ is a usual (non-placement) deallocation function in C++14 warning in asan/asan_new_delete.cc

[Uros Bizjak]

Hello!

The attached patch avoids the above warning when asan is built in GCC tree.

Bootstrapped in GCC tree, no testsuite regressions.

Ref: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64841

Uros.
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Index: asan/asan_new_delete.cc
===================================================================
--- asan/asan_new_delete.cc	(revision 220472)
+++ asan/asan_new_delete.cc	(working copy)
@@ -103,6 +103,7 @@
 void operator delete[](void *ptr, std::nothrow_t const&) {
   OPERATOR_DELETE_BODY(FROM_NEW_BR);
 }
+#if __cpp_sized_deallocation
 CXX_OPERATOR_ATTRIBUTE
 void operator delete(void *ptr, size_t size) throw() {
   GET_STACK_TRACE_FREE;
@@ -113,6 +114,7 @@
   GET_STACK_TRACE_FREE;
   asan_sized_free(ptr, size, &stack, FROM_NEW_BR);
 }
+#endif
 
 #else  // SANITIZER_MAC
 INTERCEPTOR(void, _ZdlPv, void *ptr) {