Clang Project

clang_source_code/lib/Driver/ToolChains/Arch/SystemZ.cpp
1//===--- SystemZ.cpp - SystemZ Helpers for Tools ----------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "SystemZ.h"
10#include "clang/Driver/Options.h"
11#include "llvm/Option/ArgList.h"
12
13using namespace clang::driver;
14using namespace clang::driver::tools;
15using namespace clang;
16using namespace llvm::opt;
17
18const char *systemz::getSystemZTargetCPU(const ArgList &Args) {
19  if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ))
20    return A->getValue();
21  return "z10";
22}
23
24void systemz::getSystemZTargetFeatures(const ArgList &Args,
25                                       std::vector<llvm::StringRef> &Features) {
26  // -m(no-)htm overrides use of the transactional-execution facility.
27  if (Arg *A = Args.getLastArg(options::OPT_mhtm, options::OPT_mno_htm)) {
28    if (A->getOption().matches(options::OPT_mhtm))
29      Features.push_back("+transactional-execution");
30    else
31      Features.push_back("-transactional-execution");
32  }
33  // -m(no-)vx overrides use of the vector facility.
34  if (Arg *A = Args.getLastArg(options::OPT_mvx, options::OPT_mno_vx)) {
35    if (A->getOption().matches(options::OPT_mvx))
36      Features.push_back("+vector");
37    else
38      Features.push_back("-vector");
39  }
40}
41
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