48da8489f2
Add Xtensa esp32 and esp8266 cpus. Implement target parser to recognise Xtensa hardware features.
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
//==-- XtensaTargetParser - Parser for Xtensa features ------------*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements a target parser to recognise Xtensa hardware features
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/TargetParser/XtensaTargetParser.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
#include "llvm/ADT/StringSwitch.h"
|
|
|
|
namespace llvm {
|
|
|
|
namespace Xtensa {
|
|
struct CPUInfo {
|
|
StringLiteral Name;
|
|
CPUKind Kind;
|
|
uint64_t Features;
|
|
};
|
|
|
|
struct FeatureName {
|
|
uint64_t ID;
|
|
const char *NameCStr;
|
|
size_t NameLength;
|
|
|
|
StringRef getName() const { return StringRef(NameCStr, NameLength); }
|
|
};
|
|
|
|
const FeatureName XtensaFeatureNames[] = {
|
|
#define XTENSA_FEATURE(ID, NAME) {ID, "+" NAME, sizeof(NAME)},
|
|
#include "llvm/TargetParser/XtensaTargetParser.def"
|
|
};
|
|
|
|
constexpr CPUInfo XtensaCPUInfo[] = {
|
|
#define XTENSA_CPU(ENUM, NAME, FEATURES) {NAME, CK_##ENUM, FEATURES},
|
|
#include "llvm/TargetParser/XtensaTargetParser.def"
|
|
};
|
|
|
|
StringRef getBaseName(StringRef CPU) {
|
|
return llvm::StringSwitch<StringRef>(CPU)
|
|
#define XTENSA_CPU_ALIAS(NAME, ANAME) .Case(ANAME, NAME)
|
|
#include "llvm/TargetParser/XtensaTargetParser.def"
|
|
.Default(CPU);
|
|
}
|
|
|
|
StringRef getAliasName(StringRef CPU) {
|
|
return llvm::StringSwitch<StringRef>(CPU)
|
|
#define XTENSA_CPU_ALIAS(NAME, ANAME) .Case(NAME, ANAME)
|
|
#include "llvm/TargetParser/XtensaTargetParser.def"
|
|
.Default(CPU);
|
|
}
|
|
|
|
CPUKind parseCPUKind(StringRef CPU) {
|
|
CPU = getBaseName(CPU);
|
|
return llvm::StringSwitch<CPUKind>(CPU)
|
|
#define XTENSA_CPU(ENUM, NAME, FEATURES) .Case(NAME, CK_##ENUM)
|
|
#include "llvm/TargetParser/XtensaTargetParser.def"
|
|
.Default(CK_INVALID);
|
|
}
|
|
|
|
// Get all features for the CPU
|
|
void getCPUFeatures(StringRef CPU, std::vector<StringRef> &Features) {
|
|
CPU = getBaseName(CPU);
|
|
auto I = llvm::find_if(XtensaCPUInfo,
|
|
[&](const CPUInfo &CI) { return CI.Name == CPU; });
|
|
assert(I != std::end(XtensaCPUInfo) && "CPU not found!");
|
|
uint64_t Bits = I->Features;
|
|
|
|
for (const auto &F : XtensaFeatureNames) {
|
|
if ((Bits & F.ID) == F.ID)
|
|
Features.push_back(F.getName());
|
|
}
|
|
}
|
|
|
|
// Find all valid CPUs
|
|
void fillValidCPUList(std::vector<StringRef> &Values) {
|
|
for (const auto &C : XtensaCPUInfo) {
|
|
if (C.Kind != CK_INVALID) {
|
|
Values.emplace_back(C.Name);
|
|
StringRef Name = getAliasName(C.Name);
|
|
if (Name != C.Name)
|
|
Values.emplace_back(Name);
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace Xtensa
|
|
} // namespace llvm
|