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e9cfe99a84
Use RuntimeLibcalls to get a common way to pick correct RTLIB::POWI_* libcall for a given value type. This includes a small refactoring of ExpandFPLibCall and ExpandArgFPLibCall in SelectionDAGLegalize to share a bit of code, plus adding an ExpandFPLibCall version that can be called directly when expanding FPOWI/STRICT_FPOWI to ensure that we actually use the same RTLIB::Libcall when expanding the libcall as we used when checking the legality of such a call by doing a getLibcallName check. Differential Revision: https://reviews.llvm.org/D103050
100 lines
3.8 KiB
C++
100 lines
3.8 KiB
C++
//===-- CodeGen/RuntimeLibcalls.h - Runtime Library Calls -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the enum representing the list of runtime library calls
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// the backend may emit during code generation, and also some helper functions.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_RUNTIMELIBCALLS_H
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#define LLVM_CODEGEN_RUNTIMELIBCALLS_H
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#include "llvm/CodeGen/ValueTypes.h"
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#include "llvm/Support/AtomicOrdering.h"
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namespace llvm {
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namespace RTLIB {
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/// RTLIB::Libcall enum - This enum defines all of the runtime library calls
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/// the backend can emit. The various long double types cannot be merged,
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/// because 80-bit library functions use "xf" and 128-bit use "tf".
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///
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/// When adding PPCF128 functions here, note that their names generally need
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/// to be overridden for Darwin with the xxx$LDBL128 form. See
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/// PPCISelLowering.cpp.
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///
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enum Libcall {
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#define HANDLE_LIBCALL(code, name) code,
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#include "llvm/IR/RuntimeLibcalls.def"
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#undef HANDLE_LIBCALL
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};
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/// GetFPLibCall - Helper to return the right libcall for the given floating
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/// point type, or UNKNOWN_LIBCALL if there is none.
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Libcall getFPLibCall(EVT VT,
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Libcall Call_F32,
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Libcall Call_F64,
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Libcall Call_F80,
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Libcall Call_F128,
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Libcall Call_PPCF128);
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/// getFPEXT - Return the FPEXT_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPEXT(EVT OpVT, EVT RetVT);
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/// getFPROUND - Return the FPROUND_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPROUND(EVT OpVT, EVT RetVT);
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/// getFPTOSINT - Return the FPTOSINT_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPTOSINT(EVT OpVT, EVT RetVT);
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/// getFPTOUINT - Return the FPTOUINT_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getFPTOUINT(EVT OpVT, EVT RetVT);
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/// getSINTTOFP - Return the SINTTOFP_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getSINTTOFP(EVT OpVT, EVT RetVT);
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/// getUINTTOFP - Return the UINTTOFP_*_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getUINTTOFP(EVT OpVT, EVT RetVT);
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/// getPOWI - Return the POWI_* value for the given types, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getPOWI(EVT RetVT);
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/// Return the SYNC_FETCH_AND_* value for the given opcode and type, or
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/// UNKNOWN_LIBCALL if there is none.
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Libcall getSYNC(unsigned Opc, MVT VT);
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/// Return the outline atomics value for the given opcode, atomic ordering
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/// and type, or UNKNOWN_LIBCALL if there is none.
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Libcall getOUTLINE_ATOMIC(unsigned Opc, AtomicOrdering Order, MVT VT);
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/// getMEMCPY_ELEMENT_UNORDERED_ATOMIC - Return
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/// MEMCPY_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or
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/// UNKNOW_LIBCALL if there is none.
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Libcall getMEMCPY_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize);
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/// getMEMMOVE_ELEMENT_UNORDERED_ATOMIC - Return
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/// MEMMOVE_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or
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/// UNKNOW_LIBCALL if there is none.
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Libcall getMEMMOVE_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize);
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/// getMEMSET_ELEMENT_UNORDERED_ATOMIC - Return
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/// MEMSET_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or
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/// UNKNOW_LIBCALL if there is none.
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Libcall getMEMSET_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize);
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}
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}
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#endif
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