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//===-- CodeGen/RuntimeLibcalls.h - Runtime Library Calls -------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the enum representing the list of runtime library calls
// the backend may emit during code generation, and also some helper functions.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_RUNTIMELIBCALLS_H
#define LLVM_CODEGEN_RUNTIMELIBCALLS_H
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/Support/AtomicOrdering.h"
namespace llvm {
namespace RTLIB {
/// RTLIB::Libcall enum - This enum defines all of the runtime library calls
/// the backend can emit. The various long double types cannot be merged,
/// because 80-bit library functions use "xf" and 128-bit use "tf".
///
/// When adding PPCF128 functions here, note that their names generally need
/// to be overridden for Darwin with the xxx$LDBL128 form. See
/// PPCISelLowering.cpp.
///
enum Libcall {
#define HANDLE_LIBCALL(code, name) code,
#include "llvm/IR/RuntimeLibcalls.def"
#undef HANDLE_LIBCALL
};
/// GetFPLibCall - Helper to return the right libcall for the given floating
/// point type, or UNKNOWN_LIBCALL if there is none.
Libcall getFPLibCall(EVT VT,
Libcall Call_F32,
Libcall Call_F64,
Libcall Call_F80,
Libcall Call_F128,
Libcall Call_PPCF128);
/// getFPEXT - Return the FPEXT_*_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getFPEXT(EVT OpVT, EVT RetVT);
/// getFPROUND - Return the FPROUND_*_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getFPROUND(EVT OpVT, EVT RetVT);
/// getFPTOSINT - Return the FPTOSINT_*_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getFPTOSINT(EVT OpVT, EVT RetVT);
/// getFPTOUINT - Return the FPTOUINT_*_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getFPTOUINT(EVT OpVT, EVT RetVT);
/// getSINTTOFP - Return the SINTTOFP_*_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getSINTTOFP(EVT OpVT, EVT RetVT);
/// getUINTTOFP - Return the UINTTOFP_*_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getUINTTOFP(EVT OpVT, EVT RetVT);
/// getPOWI - Return the POWI_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getPOWI(EVT RetVT);
/// getLDEXP - Return the LDEXP_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getLDEXP(EVT RetVT);
/// getFREXP - Return the FREXP_* value for the given types, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getFREXP(EVT RetVT);
/// Return the SYNC_FETCH_AND_* value for the given opcode and type, or
/// UNKNOWN_LIBCALL if there is none.
Libcall getSYNC(unsigned Opc, MVT VT);
/// Return the outline atomics value for the given atomic ordering, access
/// size and set of libcalls for a given atomic, or UNKNOWN_LIBCALL if there
/// is none.
Libcall getOutlineAtomicHelper(const Libcall (&LC)[5][4],
AtomicOrdering Order, uint64_t MemSize);
/// Return the outline atomics value for the given opcode, atomic ordering
/// and type, or UNKNOWN_LIBCALL if there is none.
Libcall getOUTLINE_ATOMIC(unsigned Opc, AtomicOrdering Order, MVT VT);
/// getMEMCPY_ELEMENT_UNORDERED_ATOMIC - Return
/// MEMCPY_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or
/// UNKNOW_LIBCALL if there is none.
Libcall getMEMCPY_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize);
/// getMEMMOVE_ELEMENT_UNORDERED_ATOMIC - Return
/// MEMMOVE_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or
/// UNKNOW_LIBCALL if there is none.
Libcall getMEMMOVE_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize);
/// getMEMSET_ELEMENT_UNORDERED_ATOMIC - Return
/// MEMSET_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or
/// UNKNOW_LIBCALL if there is none.
Libcall getMEMSET_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize);
}
}
#endif
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