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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*
* Copyright 2016 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef asmjs_wasm_baseline_compile_h
#define asmjs_wasm_baseline_compile_h
#include "wasm/WasmGenerator.h"
namespace js {
namespace wasm {
// Return whether BaselineCompileFunction can generate code on the current
// device.
bool BaselineCanCompile();
// Generate adequate code quickly.
MOZ_MUST_USE bool BaselineCompileFunctions(const ModuleEnvironment& env,
LifoAlloc& lifo,
const FuncCompileInputVector& inputs,
CompiledCode* code,
UniqueChars* error);
class BaseLocalIter {
private:
using ConstValTypeRange = mozilla::Range<const ValType>;
const ValTypeVector& locals_;
size_t argsLength_;
ConstValTypeRange argsRange_; // range struct cache for ABIArgIter
jit::ABIArgIter<ConstValTypeRange> argsIter_;
size_t index_;
int32_t localSize_;
int32_t reservedSize_;
int32_t frameOffset_;
jit::MIRType mirType_;
bool done_;
void settle();
int32_t pushLocal(size_t nbytes);
public:
BaseLocalIter(const ValTypeVector& locals, size_t argsLength,
bool debugEnabled);
void operator++(int);
bool done() const { return done_; }
jit::MIRType mirType() const {
MOZ_ASSERT(!done_);
return mirType_;
}
int32_t frameOffset() const {
MOZ_ASSERT(!done_);
return frameOffset_;
}
size_t index() const {
MOZ_ASSERT(!done_);
return index_;
}
int32_t currentLocalSize() const { return localSize_; }
int32_t reservedSize() const { return reservedSize_; }
#ifdef DEBUG
bool isArg() const {
MOZ_ASSERT(!done_);
return !argsIter_.done();
}
#endif
};
#ifdef DEBUG
// Check whether |nextPC| is a valid code address for a stackmap created by
// this compiler.
bool IsValidStackMapKey(bool debugEnabled, const uint8_t* nextPC);
#endif
} // namespace wasm
} // namespace js
#endif // asmjs_wasm_baseline_compile_h