Revert r140009, about disabling clang's builtin in -fms-compatibility mode.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141577 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index ec65655e99416ecf4eee191fcfed1dddeaad84e0..d92cf403e709bf378648c67a2cb156bf7f904101 100644 (file)
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -1393,8 +1393,7 @@ static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
   using namespace cc1options;
   Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
   Opts.Verbose = Args.hasArg(OPT_v);
-  Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc) &&
-                            !Args.hasArg(OPT_fms_compatibility);
+  Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
   Opts.UseStandardIncludes = !Args.hasArg(OPT_nostdinc);
   Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
   if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))