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// Copyright 2022 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_TEST_COMMON_CODE_ASSEMBLER_TESTER_H_
#define V8_TEST_COMMON_CODE_ASSEMBLER_TESTER_H_
#include "src/codegen/assembler.h"
#include "src/codegen/interface-descriptors.h"
#include "src/compiler/code-assembler.h"
#include "src/compiler/raw-machine-assembler.h"
#include "src/execution/isolate.h"
#include "src/handles/handles.h"
namespace v8 {
namespace internal {
namespace compiler {
class CodeAssemblerTester {
public:
CodeAssemblerTester(Isolate* isolate,
const CallInterfaceDescriptor& descriptor,
const char* name = "test")
: zone_(isolate->allocator(), ZONE_NAME, kCompressGraphZone),
scope_(isolate),
state_(isolate, &zone_, descriptor, CodeKind::FOR_TESTING, name,
Builtin::kNoBuiltinId) {}
// Test generating code for a stub. Assumes VoidDescriptor call interface.
explicit CodeAssemblerTester(Isolate* isolate, const char* name = "test")
: CodeAssemblerTester(isolate, VoidDescriptor{}, name) {}
// Test generating code for a JS function (e.g. builtins).
CodeAssemblerTester(Isolate* isolate, int parameter_count,
CodeKind kind = CodeKind::BUILTIN,
const char* name = "test")
: zone_(isolate->allocator(), ZONE_NAME, kCompressGraphZone),
scope_(isolate),
state_(isolate, &zone_, parameter_count, kind, name) {
// Parameter count must include at least the receiver.
DCHECK_LE(1, parameter_count);
}
CodeAssemblerTester(Isolate* isolate, CodeKind kind,
const char* name = "test")
: CodeAssemblerTester(isolate, 1, kind, name) {}
CodeAssemblerTester(Isolate* isolate, CallDescriptor* call_descriptor,
const char* name = "test")
: zone_(isolate->allocator(), ZONE_NAME, kCompressGraphZone),
scope_(isolate),
state_(isolate, &zone_, call_descriptor, CodeKind::FOR_TESTING, name,
Builtin::kNoBuiltinId) {}
CodeAssemblerState* state() { return &state_; }
// Direct low-level access to the machine assembler, for testing only.
RawMachineAssembler* raw_assembler_for_testing() {
return state_.raw_assembler_.get();
}
Handle<Code> GenerateCode() {
return GenerateCode(AssemblerOptions::Default(scope_.isolate()));
}
Handle<Code> GenerateCode(const AssemblerOptions& options) {
if (state_.InsideBlock()) {
CodeAssembler(&state_).Unreachable();
}
return CodeAssembler::GenerateCode(&state_, options, nullptr);
}
Handle<Code> GenerateCodeCloseAndEscape() {
return scope_.CloseAndEscape(GenerateCode());
}
private:
Zone zone_;
HandleScope scope_;
CodeAssemblerState state_;
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_TEST_COMMON_CODE_ASSEMBLER_TESTER_H_
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