r308155 - Enable TLS support on OpenBSD, but default to the emulatated TLS model.

[Brad Smith via cfe-commits]

Author: brad
Date: Sun Jul 16 17:49:31 2017
New Revision: 308155

URL: http://llvm.org/viewvc/llvm-project?rev=308155&view=rev
Log:
Enable TLS support on OpenBSD, but default to the emulatated TLS model.

Modified:
    cfe/trunk/lib/Basic/Targets.cpp
    cfe/trunk/lib/Driver/ToolChains/Clang.cpp
    cfe/trunk/test/Driver/emulated-tls.cpp

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=308155&r1=308154&r2=308155&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Sun Jul 16 17:49:31 2017
@@ -571,8 +571,6 @@ protected:
 public:
   OpenBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
       : OSTargetInfo<Target>(Triple, Opts) {
-    this->TLSSupported = false;
-
       switch (Triple.getArch()) {
         case llvm::Triple::x86:
         case llvm::Triple::x86_64:

Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=308155&r1=308154&r2=308155&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Sun Jul 16 17:49:31 2017
@@ -3201,9 +3201,10 @@ void Clang::ConstructJob(Compilation &C,
   Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls);
   Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions);
   Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names);
-  // Emulated TLS is enabled by default on Android, and can be enabled manually
-  // with -femulated-tls.
-  bool EmulatedTLSDefault = Triple.isAndroid() || Triple.isWindowsCygwinEnvironment();
+  // Emulated TLS is enabled by default on Android and OpenBSD, and can be enabled
+  // manually with -femulated-tls.
+  bool EmulatedTLSDefault = Triple.isAndroid() || Triple.isOSOpenBSD() ||
+                            Triple.isWindowsCygwinEnvironment();
   if (Args.hasFlag(options::OPT_femulated_tls, options::OPT_fno_emulated_tls,
                    EmulatedTLSDefault))
     CmdArgs.push_back("-femulated-tls");

Modified: cfe/trunk/test/Driver/emulated-tls.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/emulated-tls.cpp?rev=308155&r1=308154&r2=308155&view=diff
==============================================================================
--- cfe/trunk/test/Driver/emulated-tls.cpp (original)
+++ cfe/trunk/test/Driver/emulated-tls.cpp Sun Jul 16 17:49:31 2017
@@ -1,5 +1,7 @@
-// Cygwin uses emutls. Clang should pass -femulated-tls to cc1 and cc1 should pass EmulatedTLS to LLVM CodeGen.
+// Cygwin and OpenBSD use emutls. Clang should pass -femulated-tls to cc1
+// and cc1 should pass EmulatedTLS to LLVM CodeGen.
 // FIXME: Add more targets here to use emutls.
 // RUN: %clang -### -std=c++11 -target i686-pc-cygwin %s 2>&1 | FileCheck %s
+// RUN: %clang -### -std=c++11 -target i686-pc-openbsd %s 2>&1 | FileCheck %s
 
 // CHECK: "-cc1" {{.*}}"-femulated-tls"