r368822 - Fix _WIN32 / _WIN64 Wundef warnings

[Sven van Haastregt via cfe-commits]

Author: svenvh
Date: Wed Aug 14 03:30:18 2019
New Revision: 368822

URL: http://llvm.org/viewvc/llvm-project?rev=368822&view=rev
Log:
Fix _WIN32 / _WIN64 Wundef warnings

For these macros it is the definedness that matters rather than
the value.  Make new uses of these macros consistent with existing
uses.

Modified:
    cfe/trunk/lib/Driver/ToolChains/HIP.cpp

Modified: cfe/trunk/lib/Driver/ToolChains/HIP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/HIP.cpp?rev=368822&r1=368821&r2=368822&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/HIP.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/HIP.cpp Wed Aug 14 03:30:18 2019
@@ -23,7 +23,7 @@ using namespace clang::driver::tools;
 using namespace clang;
 using namespace llvm::opt;
 
-#if _WIN32 || _WIN64
+#if defined(_WIN32) || defined(_WIN64)
 #define NULL_FILE "nul"
 #else
 #define NULL_FILE "/dev/null"