[PATCH] D38646: [MS] Raise the default value of _MSC_VER to 1910, which is in VS 2017

[Reid Kleckner via Phabricator via cfe-commits]

rnk updated this revision to Diff 118079.
rnk added a comment.

- go to 1911, 1910 was the preview
- add release notes


https://reviews.llvm.org/D38646

Files:
  clang/docs/ReleaseNotes.rst
  clang/lib/Driver/ToolChains/MSVC.cpp


Index: clang/lib/Driver/ToolChains/MSVC.cpp
===================================================================
--- clang/lib/Driver/ToolChains/MSVC.cpp
+++ clang/lib/Driver/ToolChains/MSVC.cpp
@@ -1266,9 +1266,8 @@
   if (MSVT.empty() &&
       Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
                    IsWindowsMSVC)) {
-    // -fms-compatibility-version=18.00 is default.
-    // FIXME: Consider bumping this to 19 (MSVC2015) soon.
-    MSVT = VersionTuple(18);
+    // -fms-compatibility-version=19.11 is default, aka 2017
+    MSVT = VersionTuple(19, 11);
   }
   return MSVT;
 }
Index: clang/docs/ReleaseNotes.rst
===================================================================
--- clang/docs/ReleaseNotes.rst
+++ clang/docs/ReleaseNotes.rst
@@ -89,6 +89,11 @@
 - Bitrig OS was merged back into OpenBSD, so Bitrig support has been
   removed from Clang/LLVM.
 
+- The default value of _MSC_VER was raised from 1800 to 1911, making it
+  compatible with the Visual Studio 2015 and 2017 C++ standard library headers.
+  Users should generally expect this to be regularly raised to match the most
+  recently released version of the Visual C++ compiler.
+
 New Compiler Flags
 ------------------
 


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