[Embtk] ARM: getARMTargetCPU(): correctly use default configured in all places

Signed-off-by: Abdoulaye Walsimou Gaye <awg@embtoolkit.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp
index de8ed1d1c5..e5040c6845 100644
--- a/lib/Driver/ToolChain.cpp
+++ b/lib/Driver/ToolChain.cpp
@@ -17,6 +17,7 @@
 #include "clang/Driver/Option.h"
 #include "clang/Driver/Options.h"
 #include "llvm/ADT/StringSwitch.h"
+#include "llvm/Config/config.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "clang/Basic/ObjCRuntime.h"
 using namespace clang::driver;
@@ -79,6 +80,14 @@ ObjCRuntime ToolChain::getDefaultObjCRuntime(bool isNonFragile) const {
 // FIXME: tblgen this.
 static const char *getARMTargetCPU(const ArgList &Args,
                                    const llvm::Triple &Triple) {
+
+  const char *DefaultCPU;
+#ifdef DEFAULT_TARGET_MCPU
+  bool useDefaultCPU = true;
+  DefaultCPU = DEFAULT_TARGET_MCPU;
+#else
+  bool useDefaultCPU = false;
+#endif
   // For Darwin targets, the -arch option (which is translated to a
   // corresponding -march option) should determine the architecture
   // (and the Mach-O slice) regardless of any -mcpu options.
@@ -87,6 +96,8 @@ static const char *getARMTargetCPU(const ArgList &Args,
     // If we have -mcpu=, use that.
     if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
       return A->getValue();
+    else if (useDefaultCPU)
+      return DefaultCPU;
   }
 
   StringRef MArch;