Introduce MCCodeGenInfo, which keeps information that can affect codegen
(including compilation, assembly). Move relocation model Reloc::Model from
TargetMachine to MCCodeGenInfo so it's accessible even without TargetMachine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135468 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZTargetMachine.cpp b/lib/Target/SystemZ/SystemZTargetMachine.cpp
index 48298cc..afa455e 100644
--- a/lib/Target/SystemZ/SystemZTargetMachine.cpp
+++ b/lib/Target/SystemZ/SystemZTargetMachine.cpp
@@ -21,18 +21,15 @@
 /// SystemZTargetMachine ctor - Create an ILP64 architecture model
 ///
 SystemZTargetMachine::SystemZTargetMachine(const Target &T,
-                                           const std::string &TT,
-                                           const std::string &CPU,
-                                           const std::string &FS)
-  : LLVMTargetMachine(T, TT, CPU, FS),
+                                           StringRef TT,
+                                           StringRef CPU,
+                                           StringRef FS, Reloc::Model RM)
+  : LLVMTargetMachine(T, TT, CPU, FS, RM),
     Subtarget(TT, CPU, FS),
     DataLayout("E-p:64:64:64-i8:8:16-i16:16:16-i32:32:32-i64:64:64-f32:32:32"
                "-f64:64:64-f128:128:128-a0:16:16-n32:64"),
     InstrInfo(*this), TLInfo(*this), TSInfo(*this),
     FrameLowering(Subtarget) {
-
-  if (getRelocationModel() == Reloc::Default)
-    setRelocationModel(Reloc::Static);
 }
 
 bool SystemZTargetMachine::addInstSelector(PassManagerBase &PM,