[PATCH] D16628: clang-cl: support __cdecl-on-struct anachronism

[Reid Kleckner via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL263947: clang-cl: support __cdecl-on-struct anachronism (authored by rnk).

Changed prior to commit:
  http://reviews.llvm.org/D16628?vs=46228&id=51176#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D16628

Files:
  cfe/trunk/lib/Parse/ParseDeclCXX.cpp
  cfe/trunk/test/Parser/ms-anachronism.c

Index: cfe/trunk/test/Parser/ms-anachronism.c
===================================================================
--- cfe/trunk/test/Parser/ms-anachronism.c
+++ cfe/trunk/test/Parser/ms-anachronism.c
@@ -0,0 +1,3 @@
+// RUN: %clang_cc1 -triple i686-windows-msvc -fms-extensions -fsyntax-only -verify %s
+
+struct {} __cdecl s; // expected-warning {{'__cdecl' only applies to function types; type here is 'struct}}
Index: cfe/trunk/lib/Parse/ParseDeclCXX.cpp
===================================================================
--- cfe/trunk/lib/Parse/ParseDeclCXX.cpp
+++ cfe/trunk/lib/Parse/ParseDeclCXX.cpp
@@ -1103,6 +1103,15 @@
     return true;
   case tok::colon:
     return CouldBeBitfield;     // enum E { ... }   :         2;
+  // Microsoft compatibility
+  case tok::kw___cdecl:         // struct foo {...} __cdecl      x;
+  case tok::kw___fastcall:      // struct foo {...} __fastcall   x;
+  case tok::kw___stdcall:       // struct foo {...} __stdcall    x;
+  case tok::kw___thiscall:      // struct foo {...} __thiscall   x;
+  case tok::kw___vectorcall:    // struct foo {...} __vectorcall x;
+    // We will diagnose these calling-convention specifiers on non-function
+    // declarations later, so claim they are valid after a type specifier.
+    return getLangOpts().MicrosoftExt;
   // Type qualifiers
   case tok::kw_const:           // struct foo {...} const     x;
   case tok::kw_volatile:        // struct foo {...} volatile  x;


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