Clang-format and whitespace cleanup of source code

This patch contains the clang-format and cleanup of the entire code base. Some
of clang-formats changes made the code look worse in places. A best effort was
made to resolve the bulk of these problems, but many remain. Most of the
problems were mangling line-breaks and tabbing of comments.

Patch by Terry Wilmarth

Differential Revision: https://reviews.llvm.org/D32659

llvm-svn: 302929
diff --git a/openmp/runtime/src/kmp_ftn_cdecl.cpp b/openmp/runtime/src/kmp_ftn_cdecl.cpp
index a3c3779..887d8b9 100644
--- a/openmp/runtime/src/kmp_ftn_cdecl.cpp
+++ b/openmp/runtime/src/kmp_ftn_cdecl.cpp
@@ -17,20 +17,21 @@
 #include "kmp_affinity.h"
 
 #if KMP_OS_WINDOWS
-#   if defined  KMP_WIN_CDECL ||  !defined KMP_DYNAMIC_LIB
-#       define KMP_FTN_ENTRIES      KMP_FTN_UPPER
-#   endif
+#if defined KMP_WIN_CDECL || !defined KMP_DYNAMIC_LIB
+#define KMP_FTN_ENTRIES KMP_FTN_UPPER
+#endif
 #elif KMP_OS_UNIX
-#   define KMP_FTN_ENTRIES  KMP_FTN_PLAIN
+#define KMP_FTN_ENTRIES KMP_FTN_PLAIN
 #endif
 
 // Note: This string is not printed when KMP_VERSION=1.
-char const __kmp_version_ftncdecl[] = KMP_VERSION_PREFIX "Fortran __cdecl OMP support: "
+char const __kmp_version_ftncdecl[] =
+    KMP_VERSION_PREFIX "Fortran __cdecl OMP support: "
 #ifdef KMP_FTN_ENTRIES
-    "yes";
-#   define FTN_STDCALL 	/* no stdcall */
-#   include "kmp_ftn_os.h"
-#   include "kmp_ftn_entry.h"
+                       "yes";
+#define FTN_STDCALL /* no stdcall */
+#include "kmp_ftn_os.h"
+#include "kmp_ftn_entry.h"
 #else
-    "no";
+                       "no";
 #endif /* KMP_FTN_ENTRIES */