Prevent instructions using $gp from being placed between a jalr and the instruction that restores the clobbered $gp.

llvm-svn: 130847
diff --git a/llvm/lib/Target/Mips/MipsTargetMachine.h b/llvm/lib/Target/Mips/MipsTargetMachine.h
index badb652..102dd85 100644
--- a/llvm/lib/Target/Mips/MipsTargetMachine.h
+++ b/llvm/lib/Target/Mips/MipsTargetMachine.h
@@ -63,6 +63,8 @@
                                  CodeGenOpt::Level OptLevel);
     virtual bool addPreEmitPass(PassManagerBase &PM,
                                 CodeGenOpt::Level OptLevel);
+    virtual bool addPreRegAlloc(PassManagerBase &PM,
+                                CodeGenOpt::Level OptLevel);
     virtual bool addPostRegAlloc(PassManagerBase &, CodeGenOpt::Level);
   };