llvm-mirror/lib/Target/R600/AMDGPUIntrinsicInfo.cpp

//===- AMDGPUIntrinsicInfo.cpp - AMDGPU Intrinsic Information ---*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//==-----------------------------------------------------------------------===//
//
/// \file
/// \brief AMDGPU Implementation of the IntrinsicInfo class.
//
//===-----------------------------------------------------------------------===//

#include "AMDGPUIntrinsicInfo.h"
#include "AMDGPUSubtarget.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Module.h"

using namespace llvm;

#define GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN
#include "AMDGPUGenIntrinsics.inc"
#undef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN

AMDGPUIntrinsicInfo::AMDGPUIntrinsicInfo()
    : TargetIntrinsicInfo() {}

std::string AMDGPUIntrinsicInfo::getName(unsigned IntrID, Type **Tys,
                                         unsigned numTys) const {
  static const char *const names[] = {
#define GET_INTRINSIC_NAME_TABLE
#include "AMDGPUGenIntrinsics.inc"
#undef GET_INTRINSIC_NAME_TABLE
  };

  if (IntrID < Intrinsic::num_intrinsics) {
    return nullptr;
  }
  assert(IntrID < AMDGPUIntrinsic::num_AMDGPU_intrinsics &&
         "Invalid intrinsic ID");

  std::string Result(names[IntrID - Intrinsic::num_intrinsics]);
  return Result;
}

unsigned AMDGPUIntrinsicInfo::lookupName(const char *Name,
                                         unsigned Len) const {
  if (!StringRef(Name, Len).startswith("llvm."))
    return 0; // All intrinsics start with 'llvm.'

#define GET_FUNCTION_RECOGNIZER
#include "AMDGPUGenIntrinsics.inc"
#undef GET_FUNCTION_RECOGNIZER
  AMDGPUIntrinsic::ID IntrinsicID =
      (AMDGPUIntrinsic::ID)Intrinsic::not_intrinsic;
  IntrinsicID = getIntrinsicForGCCBuiltin("AMDGPU", Name);

  if (IntrinsicID != (AMDGPUIntrinsic::ID)Intrinsic::not_intrinsic) {
    return IntrinsicID;
  }
  return 0;
}

bool AMDGPUIntrinsicInfo::isOverloaded(unsigned id) const {
// Overload Table
#define GET_INTRINSIC_OVERLOAD_TABLE
#include "AMDGPUGenIntrinsics.inc"
#undef GET_INTRINSIC_OVERLOAD_TABLE
}

Function *AMDGPUIntrinsicInfo::getDeclaration(Module *M, unsigned IntrID,
                                              Type **Tys,
                                              unsigned numTys) const {
  llvm_unreachable("Not implemented");
}