6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
106 lines
3.5 KiB
C++
106 lines
3.5 KiB
C++
//===- RuntimeLibcalls.h - Interface for runtime libcalls -------*- 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 implements a common interface to work with library calls into a
|
|
// runtime that may be emitted by a given backend.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_IR_RUNTIME_LIBCALLS_H
|
|
#define LLVM_IR_RUNTIME_LIBCALLS_H
|
|
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/IR/CallingConv.h"
|
|
#include "llvm/Support/AtomicOrdering.h"
|
|
#include "llvm/TargetParser/Triple.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
|
|
};
|
|
|
|
/// A simple container for information about the supported runtime calls.
|
|
struct RuntimeLibcallsInfo {
|
|
explicit RuntimeLibcallsInfo(const Triple &TT) {
|
|
initLibcalls(TT);
|
|
}
|
|
|
|
/// Rename the default libcall routine name for the specified libcall.
|
|
void setLibcallName(RTLIB::Libcall Call, const char *Name) {
|
|
LibcallRoutineNames[Call] = Name;
|
|
}
|
|
|
|
void setLibcallName(ArrayRef<RTLIB::Libcall> Calls, const char *Name) {
|
|
for (auto Call : Calls)
|
|
setLibcallName(Call, Name);
|
|
}
|
|
|
|
/// Get the libcall routine name for the specified libcall.
|
|
const char *getLibcallName(RTLIB::Libcall Call) const {
|
|
return LibcallRoutineNames[Call];
|
|
}
|
|
|
|
/// Set the CallingConv that should be used for the specified libcall.
|
|
void setLibcallCallingConv(RTLIB::Libcall Call, CallingConv::ID CC) {
|
|
LibcallCallingConvs[Call] = CC;
|
|
}
|
|
|
|
/// Get the CallingConv that should be used for the specified libcall.
|
|
CallingConv::ID getLibcallCallingConv(RTLIB::Libcall Call) const {
|
|
return LibcallCallingConvs[Call];
|
|
}
|
|
|
|
iterator_range<const char **> getLibcallNames() {
|
|
return llvm::make_range(LibcallRoutineNames,
|
|
LibcallRoutineNames + RTLIB::UNKNOWN_LIBCALL);
|
|
}
|
|
|
|
private:
|
|
/// Stores the name each libcall.
|
|
const char *LibcallRoutineNames[RTLIB::UNKNOWN_LIBCALL + 1];
|
|
|
|
/// Stores the CallingConv that should be used for each libcall.
|
|
CallingConv::ID LibcallCallingConvs[RTLIB::UNKNOWN_LIBCALL];
|
|
|
|
static bool darwinHasSinCos(const Triple &TT) {
|
|
assert(TT.isOSDarwin() && "should be called with darwin triple");
|
|
// Don't bother with 32 bit x86.
|
|
if (TT.getArch() == Triple::x86)
|
|
return false;
|
|
// Macos < 10.9 has no sincos_stret.
|
|
if (TT.isMacOSX())
|
|
return !TT.isMacOSXVersionLT(10, 9) && TT.isArch64Bit();
|
|
// iOS < 7.0 has no sincos_stret.
|
|
if (TT.isiOS())
|
|
return !TT.isOSVersionLT(7, 0);
|
|
// Any other darwin such as WatchOS/TvOS is new enough.
|
|
return true;
|
|
}
|
|
|
|
/// Set default libcall names. If a target wants to opt-out of a libcall it
|
|
/// should be placed here.
|
|
void initLibcalls(const Triple &TT);
|
|
};
|
|
|
|
} // namespace RTLIB
|
|
} // namespace llvm
|
|
|
|
#endif // LLVM_IR_RUNTIME_LIBCALLS_H
|