Change the Intel Atom detection code to recognize

Lincroft and Medfield.

llvm-svn: 156025

llvm/lib/Support/Host.cpp

@@ -234,8 +234,9 @@ std::string sys::getHostCPUName() {
       case 58:
         return "core-avx-i";
 
-      case 28: // Intel Atom processor. All processors are manufactured using
-               // the 45 nm process
+      case 28: // Most 45 nm Intel Atom processors
+      case 38: // 45 nm Atom Lincroft
+      case 39: // 32 nm Atom Medfield
         return "atom";
 
       default: return "i686";

llvm/lib/Target/X86/X86Subtarget.cpp

@@ -253,7 +253,8 @@ void X86Subtarget::AutoDetectSubtargetFeatures() {
     }
 
     // Set processor type. Currently only Atom is detected.
-    if (Family == 6 && Model == 28) {
+    if (Family == 6 &&
+        (Model == 28 || Model == 38 || Model == 39)) {
       X86ProcFamily = IntelAtom;
 
       UseLeaForSP = true;