Compute feature bits at time of MCSubtargetInfo initialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134606 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZSubtarget.cpp b/lib/Target/SystemZ/SystemZSubtarget.cpp
index 4388109..518c09f 100644
--- a/lib/Target/SystemZ/SystemZSubtarget.cpp
+++ b/lib/Target/SystemZ/SystemZSubtarget.cpp
@@ -26,13 +26,13 @@
 SystemZSubtarget::SystemZSubtarget(const std::string &TT, 
                                    const std::string &CPU,
                                    const std::string &FS):
-  SystemZGenSubtargetInfo(), HasZ10Insts(false) {
+  SystemZGenSubtargetInfo(TT, CPU, FS), HasZ10Insts(false) {
   std::string CPUName = CPU;
   if (CPUName.empty())
     CPUName = "z9";
 
   // Parse features string.
-  ParseSubtargetFeatures(FS, CPUName);
+  ParseSubtargetFeatures(CPUName, FS);
 }
 
 /// True if accessing the GV requires an extra load.