1//===-- AVRTargetParser - Parser for AVR target features ------------------===//
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/// \file
10/// This file implements a target parser to recognise AVR hardware features.
11///
12//===----------------------------------------------------------------------===//
13
14#include "llvm/TargetParser/AVRTargetParser.h"
15#include "llvm/ADT/DenseMap.h"
16#include "llvm/BinaryFormat/ELF.h"
17#include "llvm/Support/Errc.h"
18
19using namespace llvm;
20
21Expected<std::string> AVR::getFeatureSetFromEFlag(const unsigned EFlag) {
22 static const DenseMap<unsigned, StringRef> EFlagToFeatureSet = {
23 {ELF::EF_AVR_ARCH_AVR1, "avr1"},
24 {ELF::EF_AVR_ARCH_AVR2, "avr2"},
25 {ELF::EF_AVR_ARCH_AVR25, "avr25"},
26 {ELF::EF_AVR_ARCH_AVR3, "avr3"},
27 {ELF::EF_AVR_ARCH_AVR31, "avr31"},
28 {ELF::EF_AVR_ARCH_AVR35, "avr35"},
29 {ELF::EF_AVR_ARCH_AVR4, "avr4"},
30 {ELF::EF_AVR_ARCH_AVR5, "avr5"},
31 {ELF::EF_AVR_ARCH_AVR51, "avr51"},
32 {ELF::EF_AVR_ARCH_AVR6, "avr6"},
33 {ELF::EF_AVR_ARCH_AVRTINY, "avrtiny"},
34 {ELF::EF_AVR_ARCH_XMEGA1, "xmega1"},
35 {ELF::EF_AVR_ARCH_XMEGA2, "xmega2"},
36 {ELF::EF_AVR_ARCH_XMEGA3, "xmega3"},
37 {ELF::EF_AVR_ARCH_XMEGA4, "xmega4"},
38 {ELF::EF_AVR_ARCH_XMEGA5, "xmega"},
39 {ELF::EF_AVR_ARCH_XMEGA6, "xmega"},
40 {ELF::EF_AVR_ARCH_XMEGA7, "xmega"},
41 };
42
43 auto It = EFlagToFeatureSet.find(Val: EFlag);
44 if (It != EFlagToFeatureSet.end())
45 return It->second.str();
46
47 return createStringError(EC: errc::invalid_argument,
48 S: "unrecognised AVR version, 0x" +
49 Twine::utohexstr(Val: EFlag));
50}
51