[llvm] r254915 - Silence all C4592 warnings with MSVC 2015 Update 1. This warning produces false positives that Microsoft says will be fixed in Update 2. Until this produces reliable diagnostics, it is safe to disable the diagnostic -- the compiler is not doing anything different than it previously did aside from issuing the diagnostic.

[Aaron Ballman via llvm-commits]

Author: aaronballman
Date: Mon Dec  7 09:44:34 2015
New Revision: 254915

URL: http://llvm.org/viewvc/llvm-project?rev=254915&view=rev
Log:
Silence all C4592 warnings with MSVC 2015 Update 1. This warning produces false positives that Microsoft says will be fixed in Update 2. Until this produces reliable diagnostics, it is safe to disable the diagnostic -- the compiler is not doing anything different than it previously did aside from issuing the diagnostic.

(Note, this silences at least one false positive in LLVM with FeatureBitset uses.)

Modified:
    llvm/trunk/cmake/modules/HandleLLVMOptions.cmake

Modified: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/HandleLLVMOptions.cmake?rev=254915&r1=254914&r2=254915&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake (original)
+++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake Mon Dec  7 09:44:34 2015
@@ -317,6 +317,9 @@ if( MSVC )
     -wd4204 # Suppress 'nonstandard extension used : non-constant aggregate initializer'
     -wd4577 # Suppress 'noexcept used with no exception handling mode specified; termination on exception is not guaranteed'
     -wd4091 # Suppress 'typedef: ignored on left of '' when no variable is declared'
+        # C4592 is disabled because of false positives in Visual Studio 2015
+        # Update 1. Re-evaluate the usefulness of this diagnostic with Update 2.
+    -wd4592 # Suppress ''var': symbol will be dynamically initialized (implementation limitation)
 
 	# Ideally, we'd like this warning to be enabled, but MSVC 2013 doesn't
 	# support the 'aligned' attribute in the way that clang sources requires (for