71f45455e1
As RV64 codegen has not yet been upstreamed into LLVM, we focus on RV32 driver support (RV64 to follow). Differential Revision: https://reviews.llvm.org/D39963 llvm-svn: 322276
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
//===--- RISCV.cpp - RISCV Helpers for Tools --------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "RISCV.h"
|
|
#include "clang/Driver/Driver.h"
|
|
#include "clang/Driver/DriverDiagnostic.h"
|
|
#include "clang/Driver/Options.h"
|
|
#include "llvm/Option/ArgList.h"
|
|
#include "llvm/Support/TargetParser.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
using namespace clang::driver;
|
|
using namespace clang::driver::tools;
|
|
using namespace clang;
|
|
using namespace llvm::opt;
|
|
|
|
void riscv::getRISCVTargetFeatures(const Driver &D, const ArgList &Args,
|
|
std::vector<StringRef> &Features) {
|
|
if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
|
|
StringRef MArch = A->getValue();
|
|
// TODO: handle rv64
|
|
std::pair<StringRef, StringRef> MArchSplit = StringRef(MArch).split("rv32");
|
|
if (!MArchSplit.second.size())
|
|
return;
|
|
|
|
for (char c : MArchSplit.second) {
|
|
switch (c) {
|
|
case 'i':
|
|
break;
|
|
case 'm':
|
|
Features.push_back("+m");
|
|
break;
|
|
case 'a':
|
|
Features.push_back("+a");
|
|
break;
|
|
case 'f':
|
|
Features.push_back("+f");
|
|
break;
|
|
case 'd':
|
|
Features.push_back("+d");
|
|
break;
|
|
case 'c':
|
|
Features.push_back("+c");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
StringRef riscv::getRISCVABI(const ArgList &Args, const llvm::Triple &Triple) {
|
|
if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
|
|
return A->getValue();
|
|
|
|
return Triple.getArch() == llvm::Triple::riscv32 ? "ilp32" : "lp64";
|
|
}
|