Changes from 3.7 merge to files not in upstream

lib/Target/JSBackend/JSTargetTransformInfo.h

+//===-- JSTargetTransformInfo.h - JS specific TTI ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This file implements a TargetTransformInfo::Concept conforming object
+/// specific to the JS target machine. It uses the target's detailed information
+/// to provide more precise answers to certain TTI queries, while letting the
+/// target independent and default TTI implementations handle the rest.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_JSBACKEND_JSTARGETTRANSFORMINFO_H
+#define LLVM_LIB_TARGET_JSBACKEND_JSTARGETTRANSFORMINFO_H
+
+#include "JS.h"
+#include "JSTargetMachine.h"
+#include "llvm/Analysis/TargetTransformInfo.h"
+#include "llvm/CodeGen/BasicTTIImpl.h"
+
+namespace llvm {
+
+class JSTTI : public BasicTTIImplBase<JSTTI> {
+  typedef BasicTTIImplBase<JSTTI> BaseT;
+  typedef TargetTransformInfo TTI;
+  friend BaseT;
+
+  const TargetSubtargetInfo *ST;
+  const TargetLoweringBase *TLI;
+
+  const TargetSubtargetInfo *getST() const { return ST; }
+  const TargetLoweringBase *getTLI() const { return TLI; }
+
+public:
+explicit JSTTI(const JSTargetMachine *TM, Function &F)
+    : BaseT(TM), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
+  // Provide value semantics. MSVC requires that we spell all of these out.
+  JSTTI(const JSTTI &Arg)
+      : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
+  JSTTI(JSTTI &&Arg)
+      : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
+        TLI(std::move(Arg.TLI)) {}
+  JSTTI &operator=(const JSTTI &RHS) {
+    BaseT::operator=(static_cast<const BaseT &>(RHS));
+    ST = RHS.ST;
+    TLI = RHS.TLI;
+    return *this;
+  }
+  JSTTI &operator=(JSTTI &&RHS) {
+    BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
+    ST = std::move(RHS.ST);
+    TLI = std::move(RHS.TLI);
+    return *this;
+  }
+
+
+  TTI::PopcntSupportKind getPopcntSupport(unsigned IntTyWidthInBit);
+
+  unsigned getRegisterBitWidth(bool Vector) const;
+
+  unsigned getArithmeticInstrCost(
+      unsigned Opcode, Type *Ty,
+      TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
+      TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
+      TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
+      TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
+
+  unsigned getVectorInstrCost(unsigned Opcode, Type *Val,
+                              unsigned Index = -1);
+
+  void getUnrollingPreferences(Loop *L,
+                               TTI::UnrollingPreferences &UP) const;
+};
+
+} // end namespace llvm
+#endif