clang 20.0.0git
SystemZ.cpp
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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/Config/config.h"
13#include "llvm/Option/ArgList.h"
14#include "llvm/TargetParser/Host.h"
15
16using namespace clang::driver;
17using namespace clang::driver::tools;
18using namespace clang;
19using namespace llvm::opt;
20
22 const ArgList &Args) {
23 // Hard float is the default.
24 systemz::FloatABI ABI = systemz::FloatABI::Hard;
25 if (Args.hasArg(options::OPT_mfloat_abi_EQ))
26 D.Diag(diag::err_drv_unsupported_opt)
27 << Args.getLastArg(options::OPT_mfloat_abi_EQ)->getAsString(Args);
28
29 if (Arg *A = Args.getLastArg(clang::driver::options::OPT_msoft_float,
30 options::OPT_mhard_float))
31 if (A->getOption().matches(clang::driver::options::OPT_msoft_float))
32 ABI = systemz::FloatABI::Soft;
33
34 return ABI;
35}
36
37std::string systemz::getSystemZTargetCPU(const ArgList &Args,
38 const llvm::Triple &T) {
39 if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ)) {
40 llvm::StringRef CPUName = A->getValue();
41
42 if (CPUName == "native") {
43 std::string CPU = std::string(llvm::sys::getHostCPUName());
44 if (!CPU.empty() && CPU != "generic")
45 return CPU;
46 else
47 return "";
48 }
49
50 return std::string(CPUName);
51 }
52 if (T.isOSzOS())
53 return "zEC12";
54 return CLANG_SYSTEMZ_DEFAULT_ARCH;
55}
56
57void systemz::getSystemZTargetFeatures(const Driver &D, const ArgList &Args,
58 std::vector<llvm::StringRef> &Features) {
59 // -m(no-)htm overrides use of the transactional-execution facility.
60 if (Arg *A = Args.getLastArg(options::OPT_mhtm, options::OPT_mno_htm)) {
61 if (A->getOption().matches(options::OPT_mhtm))
62 Features.push_back("+transactional-execution");
63 else
64 Features.push_back("-transactional-execution");
65 }
66 // -m(no-)vx overrides use of the vector facility.
67 if (Arg *A = Args.getLastArg(options::OPT_mvx, options::OPT_mno_vx)) {
68 if (A->getOption().matches(options::OPT_mvx))
69 Features.push_back("+vector");
70 else
71 Features.push_back("-vector");
72 }
73
75 if (FloatABI == systemz::FloatABI::Soft)
76 Features.push_back("+soft-float");
77
78 if (const Arg *A = Args.getLastArg(options::OPT_munaligned_symbols,
79 options::OPT_mno_unaligned_symbols)) {
80 if (A->getOption().matches(options::OPT_munaligned_symbols))
81 Features.push_back("+unaligned-symbols");
82 else
83 Features.push_back("-unaligned-symbols");
84 }
85}
const Decl * D
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:77
void getSystemZTargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)
FloatABI getSystemZFloatABI(const Driver &D, const llvm::opt::ArgList &Args)
std::string getSystemZTargetCPU(const llvm::opt::ArgList &Args, const llvm::Triple &T)
The JSON file list parser is used to communicate input to InstallAPI.
const FunctionProtoType * T