mirror of
https://github.com/dart-lang/sdk
synced 2024-09-05 00:13:50 +00:00
![Ryan Macnak](/assets/img/avatar_default.png)
- Fixes SIMD registers clobbered by write barrier on ARM64. - Moves code generation out of non-compiler directory. - Removes unnecessary building of Dart frames on leaf runtime calls. - Removes unnecessary Threads slots for write barrier Code objects. - Removes duplicate saves of SP in leaf runtime calls on ARM64 and RISC-V. - Avoids some redundant SP updates on RISC-V. TEST=ci Change-Id: Idb92127658edc90b320923ef3d882a7219a450ae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/236842 Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
127 lines
5.3 KiB
C++
127 lines
5.3 KiB
C++
// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#include "vm/globals.h"
|
|
#if defined(TARGET_ARCH_RISCV32) || defined(TARGET_ARCH_RISCV64)
|
|
|
|
#include "vm/dart_entry.h"
|
|
#include "vm/isolate.h"
|
|
#include "vm/native_entry.h"
|
|
#include "vm/native_entry_test.h"
|
|
#include "vm/object.h"
|
|
#include "vm/runtime_entry.h"
|
|
#include "vm/stub_code.h"
|
|
#include "vm/symbols.h"
|
|
#include "vm/unit_test.h"
|
|
|
|
#define __ assembler->
|
|
|
|
namespace dart {
|
|
|
|
static Function* CreateFunction(const char* name) {
|
|
const String& class_name =
|
|
String::Handle(Symbols::New(Thread::Current(), "ownerClass"));
|
|
const Script& script = Script::Handle();
|
|
const Library& lib = Library::Handle(Library::New(class_name));
|
|
const Class& owner_class = Class::Handle(
|
|
Class::New(lib, class_name, script, TokenPosition::kNoSource));
|
|
const String& function_name =
|
|
String::ZoneHandle(Symbols::New(Thread::Current(), name));
|
|
const FunctionType& signature = FunctionType::ZoneHandle(FunctionType::New());
|
|
Function& function = Function::ZoneHandle(Function::New(
|
|
signature, function_name, UntaggedFunction::kRegularFunction, true, false,
|
|
false, false, false, owner_class, TokenPosition::kNoSource));
|
|
return &function;
|
|
}
|
|
|
|
// Test calls to stub code which calls into the runtime.
|
|
static void GenerateCallToCallRuntimeStub(compiler::Assembler* assembler,
|
|
int length) {
|
|
const int argc = 2;
|
|
const Smi& smi_length = Smi::ZoneHandle(Smi::New(length));
|
|
__ EnterDartFrame(0);
|
|
__ PushObject(Object::null_object()); // Push Null obj for return value.
|
|
__ PushObject(smi_length); // Push argument 1: length.
|
|
__ PushObject(Object::null_object()); // Push argument 2: type arguments.
|
|
ASSERT(kAllocateArrayRuntimeEntry.argument_count() == argc);
|
|
__ CallRuntime(kAllocateArrayRuntimeEntry, argc);
|
|
__ addi(SP, SP, argc * kWordSize);
|
|
__ PopRegister(A0); // Pop return value from return slot.
|
|
__ LeaveDartFrame();
|
|
__ ret();
|
|
}
|
|
|
|
ISOLATE_UNIT_TEST_CASE(CallRuntimeStubCode) {
|
|
extern const Function& RegisterFakeFunction(const char* name,
|
|
const Code& code);
|
|
const int length = 10;
|
|
const char* kName = "Test_CallRuntimeStubCode";
|
|
compiler::ObjectPoolBuilder object_pool_builder;
|
|
compiler::Assembler assembler(&object_pool_builder);
|
|
GenerateCallToCallRuntimeStub(&assembler, length);
|
|
SafepointWriteRwLocker ml(thread, thread->isolate_group()->program_lock());
|
|
const Code& code = Code::Handle(Code::FinalizeCodeAndNotify(
|
|
*CreateFunction("Test_CallRuntimeStubCode"), nullptr, &assembler,
|
|
Code::PoolAttachment::kAttachPool));
|
|
const Function& function = RegisterFakeFunction(kName, code);
|
|
Array& result = Array::Handle();
|
|
result ^= DartEntry::InvokeFunction(function, Object::empty_array());
|
|
EXPECT_EQ(length, result.Length());
|
|
}
|
|
|
|
// Test calls to stub code which calls into a leaf runtime entry.
|
|
static void GenerateCallToCallLeafRuntimeStub(compiler::Assembler* assembler,
|
|
const char* str_value,
|
|
intptr_t lhs_index_value,
|
|
intptr_t rhs_index_value,
|
|
intptr_t length_value) {
|
|
const String& str = String::ZoneHandle(String::New(str_value, Heap::kOld));
|
|
const Smi& lhs_index = Smi::ZoneHandle(Smi::New(lhs_index_value));
|
|
const Smi& rhs_index = Smi::ZoneHandle(Smi::New(rhs_index_value));
|
|
const Smi& length = Smi::ZoneHandle(Smi::New(length_value));
|
|
__ EnterDartFrame(0);
|
|
{
|
|
compiler::LeafRuntimeScope rt(assembler,
|
|
/*frame_size=*/0,
|
|
/*preserve_registers=*/false);
|
|
__ LoadObject(A0, str);
|
|
__ LoadObject(A1, lhs_index);
|
|
__ LoadObject(A2, rhs_index);
|
|
__ LoadObject(A3, length);
|
|
rt.Call(kCaseInsensitiveCompareUCS2RuntimeEntry, 4);
|
|
}
|
|
__ LeaveDartFrame();
|
|
__ ret(); // Return value is in A0.
|
|
}
|
|
|
|
ISOLATE_UNIT_TEST_CASE(CallLeafRuntimeStubCode) {
|
|
extern const Function& RegisterFakeFunction(const char* name,
|
|
const Code& code);
|
|
const char* str_value = "abAB";
|
|
intptr_t lhs_index_value = 0;
|
|
intptr_t rhs_index_value = 2;
|
|
intptr_t length_value = 2;
|
|
const char* kName = "Test_CallLeafRuntimeStubCode";
|
|
compiler::ObjectPoolBuilder object_pool_builder;
|
|
compiler::Assembler assembler(&object_pool_builder);
|
|
GenerateCallToCallLeafRuntimeStub(&assembler, str_value, lhs_index_value,
|
|
rhs_index_value, length_value);
|
|
SafepointWriteRwLocker ml(thread, thread->isolate_group()->program_lock());
|
|
const Code& code = Code::Handle(Code::FinalizeCodeAndNotify(
|
|
*CreateFunction("Test_CallLeafRuntimeStubCode"), nullptr, &assembler,
|
|
Code::PoolAttachment::kAttachPool));
|
|
if (FLAG_disassemble) {
|
|
OS::PrintErr("Disassemble:\n");
|
|
code.Disassemble();
|
|
}
|
|
const Function& function = RegisterFakeFunction(kName, code);
|
|
Instance& result = Instance::Handle();
|
|
result ^= DartEntry::InvokeFunction(function, Object::empty_array());
|
|
EXPECT_EQ(Bool::True().ptr(), result.ptr());
|
|
}
|
|
|
|
} // namespace dart
|
|
|
|
#endif // defined TARGET_ARCH_RISCV
|