Index: lib/Support/Host.cpp
===================================================================
--- lib/Support/Host.cpp
+++ lib/Support/Host.cpp
@@ -832,19 +832,17 @@
     break; // "btver1";
   case 21:
     *Type = X86::AMDFAM15H;
-    if (Model >= 0x60 && Model <= 0x7f) {
+    switch (Model) {
+    case 4:
       *Subtype = X86::AMDFAM15H_BDVER4;
       break; // "bdver4"; 60h-7Fh: Excavator
-    }
-    if (Model >= 0x30 && Model <= 0x3f) {
+    case 3:
       *Subtype = X86::AMDFAM15H_BDVER3;
       break; // "bdver3"; 30h-3Fh: Steamroller
-    }
-    if (Model >= 0x10 && Model <= 0x1f) {
+    case 2:
       *Subtype = X86::AMDFAM15H_BDVER2;
       break; // "bdver2"; 10h-1Fh: Piledriver
-    }
-    if (Model <= 0x0f) {
+    case 1:
       *Subtype = X86::AMDFAM15H_BDVER1;
       break; // "bdver1"; 00h-0Fh: Bulldozer
     }