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//===--- SystemZ.cpp - SystemZ Helpers for Tools ----------------*- 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
//
//===----------------------------------------------------------------------===//
#include "SystemZ.h"
#include "clang/Config/config.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Options.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/Host.h"
using namespace clang::driver;
using namespace clang::driver::tools;
using namespace clang;
using namespace llvm::opt;
systemz::FloatABI systemz::getSystemZFloatABI(const Driver &D,
const ArgList &Args) {
// Hard float is the default.
systemz::FloatABI ABI = systemz::FloatABI::Hard;
if (Args.hasArg(options::OPT_mfloat_abi_EQ))
D.Diag(diag::err_drv_unsupported_opt)
<< Args.getLastArg(options::OPT_mfloat_abi_EQ)->getAsString(Args);
if (Arg *A = Args.getLastArg(clang::driver::options::OPT_msoft_float,
options::OPT_mhard_float))
if (A->getOption().matches(clang::driver::options::OPT_msoft_float))
ABI = systemz::FloatABI::Soft;
return ABI;
}
std::string systemz::getSystemZTargetCPU(const ArgList &Args) {
if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ)) {
llvm::StringRef CPUName = A->getValue();
if (CPUName == "native") {
std::string CPU = std::string(llvm::sys::getHostCPUName());
if (!CPU.empty() && CPU != "generic")
return CPU;
else
return "";
}
return std::string(CPUName);
}
return CLANG_SYSTEMZ_DEFAULT_ARCH;
}
void systemz::getSystemZTargetFeatures(const Driver &D, const ArgList &Args,
std::vector<llvm::StringRef> &Features) {
// -m(no-)htm overrides use of the transactional-execution facility.
if (Arg *A = Args.getLastArg(options::OPT_mhtm, options::OPT_mno_htm)) {
if (A->getOption().matches(options::OPT_mhtm))
Features.push_back("+transactional-execution");
else
Features.push_back("-transactional-execution");
}
// -m(no-)vx overrides use of the vector facility.
if (Arg *A = Args.getLastArg(options::OPT_mvx, options::OPT_mno_vx)) {
if (A->getOption().matches(options::OPT_mvx))
Features.push_back("+vector");
else
Features.push_back("-vector");
}
systemz::FloatABI FloatABI = systemz::getSystemZFloatABI(D, Args);
if (FloatABI == systemz::FloatABI::Soft)
Features.push_back("+soft-float");
}
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