bcf1172992
As part of JSSP removal, we need to align the arguments passed to functions on the stack, by adding a padding slot when the total number of arguments is odd. This patch introduces the kPadArguments flag (which is currently set to false for all architectures), which will control padding of arguments in architecture-independent parts of the code (deoptimizer, instruction selector). It also adds some executable tests for tail calls with various stack parameter counts on the caller and callee sides. This will be turned on for arm64 together with arm64-specific changes to the code generator, the MacroAsembler and the builtins, in a later patch. Bug: v8:6644 Change-Id: I79a5c149123fe8130cedd1ccffec3d9b50361e08 Reviewed-on: https://chromium-review.googlesource.com/806554 Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#50134}
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
// Copyright 2016 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_CCTEST_COMPILER_CODE_ASSEMBLER_TESTER_H_
|
|
#define V8_TEST_CCTEST_COMPILER_CODE_ASSEMBLER_TESTER_H_
|
|
|
|
#include "src/compiler/code-assembler.h"
|
|
#include "src/compiler/raw-machine-assembler.h"
|
|
#include "src/handles.h"
|
|
#include "src/interface-descriptors.h"
|
|
#include "src/isolate.h"
|
|
#include "test/cctest/compiler/function-tester.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
namespace compiler {
|
|
|
|
class CodeAssemblerTester {
|
|
public:
|
|
// Test generating code for a stub. Assumes VoidDescriptor call interface.
|
|
explicit CodeAssemblerTester(Isolate* isolate)
|
|
: zone_(isolate->allocator(), ZONE_NAME),
|
|
scope_(isolate),
|
|
state_(isolate, &zone_, VoidDescriptor(isolate), Code::STUB, "test") {}
|
|
|
|
// Test generating code for a JS function (e.g. builtins).
|
|
CodeAssemblerTester(Isolate* isolate, int parameter_count,
|
|
Code::Kind kind = Code::BUILTIN)
|
|
: zone_(isolate->allocator(), ZONE_NAME),
|
|
scope_(isolate),
|
|
state_(isolate, &zone_, parameter_count, kind, "test") {}
|
|
|
|
CodeAssemblerTester(Isolate* isolate, Code::Kind kind)
|
|
: zone_(isolate->allocator(), ZONE_NAME),
|
|
scope_(isolate),
|
|
state_(isolate, &zone_, 0, kind, "test") {}
|
|
|
|
CodeAssemblerTester(Isolate* isolate, CallDescriptor* call_descriptor,
|
|
const char* name = "test")
|
|
: zone_(isolate->allocator(), ZONE_NAME),
|
|
scope_(isolate),
|
|
state_(isolate, &zone_, call_descriptor, Code::STUB, name, 0, -1) {}
|
|
|
|
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 CodeAssembler::GenerateCode(&state_); }
|
|
|
|
Handle<Code> GenerateCodeCloseAndEscape() {
|
|
return scope_.CloseAndEscape(GenerateCode());
|
|
}
|
|
|
|
private:
|
|
Zone zone_;
|
|
HandleScope scope_;
|
|
LocalContext context_;
|
|
CodeAssemblerState state_;
|
|
};
|
|
|
|
} // namespace compiler
|
|
} // namespace internal
|
|
} // namespace v8
|
|
|
|
#endif // V8_TEST_CCTEST_COMPILER_CODE_ASSEMBLER_TESTER_H_
|