llvm-project/llvm/lib/Target/X86/X86CallingConv.h

//=== X86CallingConv.h - X86 Custom Calling Convention Routines -*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the custom routines for the X86 Calling Convention that
// aren't done by tablegen.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_X86_X86CALLINGCONV_H
#define LLVM_LIB_TARGET_X86_X86CALLINGCONV_H

#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/IR/CallingConv.h"

namespace llvm {

inline bool CC_X86_32_VectorCallIndirect(unsigned &ValNo, MVT &ValVT,
                                         MVT &LocVT,
                                         CCValAssign::LocInfo &LocInfo,
                                         ISD::ArgFlagsTy &ArgFlags,
                                         CCState &State) {
  // Similar to CCPassIndirect, with the addition of inreg.
  LocVT = MVT::i32;
  LocInfo = CCValAssign::Indirect;
  ArgFlags.setInReg();
  return false; // Continue the search, but now for i32.
}


inline bool CC_X86_AnyReg_Error(unsigned &, MVT &, MVT &,
                                CCValAssign::LocInfo &, ISD::ArgFlagsTy &,
                                CCState &) {
  llvm_unreachable("The AnyReg calling convention is only supported by the " \
                   "stackmap and patchpoint intrinsics.");
  // gracefully fallback to X86 C calling convention on Release builds.
  return false;
}

} // End llvm namespace

#endif