Return a StringRef from getHostCPUName.

llvm-svn: 197158

include/llvm/Support/Host.h

@@ -55,7 +55,7 @@ namespace sys {
   /// target which matches the host.
   ///
   /// \return - The host CPU name, or empty if the CPU could not be determined.
-  std::string getHostCPUName();
+  StringRef getHostCPUName();
 
   /// getHostCPUFeatures - Get the LLVM names for the host CPU features.
   /// The particular format of the names are target dependent, and suitable for

lib/Support/Host.cpp

@@ -193,7 +193,7 @@ static void DetectX86FamilyModel(unsigned EAX, unsigned &Family,
   }
 }
 
-std::string sys::getHostCPUName() {
+StringRef sys::getHostCPUName() {
   unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
   if (GetX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
     return "generic";