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, 1 insertions, 1 deletions

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 92fd417173..871bac9743 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -1272,7 +1272,7 @@ public:
            "  unsigned fp_offset;"
            "  void* overflow_arg_area;"
            "  void* reg_save_area;"
-           "} __va_list_tag;"
+           "} __attribute__((adl_invisible)) __va_list_tag;"
            "typedef __va_list_tag __builtin_va_list[1];";
   }