Add a new attribute on records, __attribute__((adl_invisible)), and define

the x86-64 __va_list_tag with this attribute.  The attribute causes the
affected type to behave like a fundamental type when considered by ADL.

(x86-64 is the only target we currently provide with a struct-based
__builtin_va_list)

Fixes PR6762.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104941 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp b/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp
index 2bdf7cb0d7..0c905fbf32 100644
--- a/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp
+++ b/test/CXX/basic/basic.lookup/basic.lookup.argdep/p2.cpp
@@ -97,3 +97,14 @@ namespace test5 {
     foo(&bar);
   }
 }
+
+// PR6762: __builtin_va_list should be invisible to ADL on all platforms.
+void test6_function(__builtin_va_list &argv);
+namespace test6 {
+  void test6_function(__builtin_va_list &argv);
+
+  void test() {
+    __builtin_va_list args;
+    test6_function(args);
+  }
+}