Always allow "#pragma region".

Summary:
Both MS and PS4 targets are capable of recognizing the
existence of:  #pragma region, #pragma endregion.

Since this pragma is only a hint for certain editors, and has no logic,
it seems helpful to permit this pragma in all cases, not just MS compatibility mode.



Reviewers: rnk, rsmith, majnemer

Reviewed By: majnemer

Subscribers: Quuxplusone, probinson, majnemer, cfe-commits

Differential Revision: https://reviews.llvm.org/D42248

llvm-svn: 323577

2 files changed, 9 insertions, 2 deletions

diff --git a/clang/lib/Lex/Pragma.cpp b/clang/lib/Lex/Pragma.cpp
index d2abc5acc09..b9be03f4f20 100644
--- a/clang/lib/Lex/Pragma.cpp
+++ b/clang/lib/Lex/Pragma.cpp
@@ -1776,13 +1776,15 @@ void Preprocessor::RegisterBuiltinPragmas() {
   ModuleHandler->AddPragma(new PragmaModuleEndHandler());
   ModuleHandler->AddPragma(new PragmaModuleBuildHandler());
   ModuleHandler->AddPragma(new PragmaModuleLoadHandler());
+    
+  // Add region pragmas.
+  AddPragmaHandler(new PragmaRegionHandler("region"));
+  AddPragmaHandler(new PragmaRegionHandler("endregion"));
 
   // MS extensions.
   if (LangOpts.MicrosoftExt) {
     AddPragmaHandler(new PragmaWarningHandler());
     AddPragmaHandler(new PragmaIncludeAliasHandler());
-    AddPragmaHandler(new PragmaRegionHandler("region"));
-    AddPragmaHandler(new PragmaRegionHandler("endregion"));
   }
 
   // Pragmas added by plugins
diff --git a/clang/test/Frontend/region-pragmas.c b/clang/test/Frontend/region-pragmas.c
new file mode 100644
index 00000000000..8d929e8414f
--- /dev/null
+++ b/clang/test/Frontend/region-pragmas.c
@@ -0,0 +1,5 @@
+// RUN: %clang_cc1 -Wall -verify %s
+// expected-no-diagnostics
+
+#pragma region foo
+#pragma endregion foo