94b088ca3c
This is a first step towards moving Turbofan code generation off the main thread. Summary of the changes: - AssemblerBase no longer has a pointer to the isolate. Instead, its constructor receives the few things that it needs from the isolate (on most architectures this is just the serializer_enabled flag). - RelocInfo no longer has a pointer to the isolate. Instead, the functions that need it take it as an argument. (There are currently still a few that implicitly access the isolate through a HeapObject.) - The MacroAssembler now explicitly holds a pointer to the isolate (before, it used to get it from the Assembler). - The jit_cookie also moved from AssemblerBase to the MacroAssemblers, since it's not used at all in the Assemblers. - A few architectures implemented parts of the Assembler with the help of a Codepatcher that is based on MacroAssembler. Since the Assembler no longer has the isolate, but the MacroAssembler still needs it, this doesn't work anymore. Instead, these Assemblers now use a new PatchingAssembler. BUG=v8:6048 Review-Url: https://codereview.chromium.org/2732273003 Cr-Commit-Position: refs/heads/master@{#43890}
137 lines
4.0 KiB
C++
137 lines
4.0 KiB
C++
// Copyright 2015 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.
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "src/v8.h"
|
|
|
|
#include "src/debug/debug.h"
|
|
#include "src/disasm.h"
|
|
#include "src/disassembler.h"
|
|
#include "src/ic/ic.h"
|
|
#include "src/macro-assembler.h"
|
|
#include "src/objects-inl.h"
|
|
#include "src/ostreams.h"
|
|
#include "test/cctest/cctest.h"
|
|
#include "test/cctest/compiler/c-signature.h"
|
|
#include "test/cctest/compiler/call-tester.h"
|
|
|
|
using namespace v8::internal;
|
|
using namespace v8::internal::compiler;
|
|
|
|
#define __ assm.
|
|
|
|
static int32_t DummyStaticFunction(Object* result) { return 1; }
|
|
|
|
TEST(WasmRelocationX64MemoryReference) {
|
|
Isolate* isolate = CcTest::i_isolate();
|
|
HandleScope scope(isolate);
|
|
v8::internal::byte buffer[4096];
|
|
Assembler assm(isolate, buffer, sizeof buffer);
|
|
DummyStaticFunction(NULL);
|
|
int64_t imm = 1234567;
|
|
|
|
__ movq(rax, imm, RelocInfo::WASM_MEMORY_REFERENCE);
|
|
__ nop();
|
|
__ ret(0);
|
|
|
|
CodeDesc desc;
|
|
assm.GetCode(&desc);
|
|
Handle<Code> code = isolate->factory()->NewCode(
|
|
desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
|
|
USE(code);
|
|
|
|
CSignature0<int64_t> csig;
|
|
CodeRunner<int64_t> runnable(isolate, code, &csig);
|
|
int64_t ret_value = runnable.Call();
|
|
CHECK_EQ(ret_value, imm);
|
|
|
|
#ifdef OBJECT_PRINT
|
|
OFStream os(stdout);
|
|
code->Print(os);
|
|
byte* begin = code->instruction_start();
|
|
byte* end = begin + code->instruction_size();
|
|
disasm::Disassembler::Disassemble(stdout, begin, end);
|
|
#endif
|
|
int offset = 1234;
|
|
|
|
// Relocating references by offset
|
|
int mode_mask = (1 << RelocInfo::WASM_MEMORY_REFERENCE);
|
|
for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) {
|
|
DCHECK(RelocInfo::IsWasmMemoryReference(it.rinfo()->rmode()));
|
|
it.rinfo()->update_wasm_memory_reference(
|
|
isolate, it.rinfo()->wasm_memory_reference(),
|
|
it.rinfo()->wasm_memory_reference() + offset, SKIP_ICACHE_FLUSH);
|
|
}
|
|
|
|
// Check if immediate is updated correctly
|
|
ret_value = runnable.Call();
|
|
CHECK_EQ(ret_value, imm + offset);
|
|
|
|
#ifdef OBJECT_PRINT
|
|
code->Print(os);
|
|
begin = code->instruction_start();
|
|
end = begin + code->instruction_size();
|
|
disasm::Disassembler::Disassemble(stdout, begin, end);
|
|
#endif
|
|
}
|
|
|
|
TEST(WasmRelocationX64WasmMemorySizeReference) {
|
|
CcTest::InitializeVM();
|
|
Isolate* isolate = CcTest::i_isolate();
|
|
HandleScope scope(isolate);
|
|
v8::internal::byte buffer[4096];
|
|
Assembler assm(isolate, buffer, sizeof buffer);
|
|
DummyStaticFunction(NULL);
|
|
int32_t size = 512;
|
|
Label fail;
|
|
|
|
__ movl(rax, Immediate(size, RelocInfo::WASM_MEMORY_SIZE_REFERENCE));
|
|
__ cmpl(rax, Immediate(size, RelocInfo::WASM_MEMORY_SIZE_REFERENCE));
|
|
__ j(not_equal, &fail);
|
|
__ ret(0);
|
|
__ bind(&fail);
|
|
__ movl(rax, Immediate(0xdeadbeef));
|
|
__ ret(0);
|
|
|
|
CodeDesc desc;
|
|
assm.GetCode(&desc);
|
|
Handle<Code> code = isolate->factory()->NewCode(
|
|
desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
|
|
USE(code);
|
|
|
|
CSignature0<int64_t> csig;
|
|
CodeRunner<int64_t> runnable(isolate, code, &csig);
|
|
int64_t ret_value = runnable.Call();
|
|
CHECK_NE(ret_value, bit_cast<uint32_t>(0xdeadbeef));
|
|
|
|
#ifdef OBJECT_PRINT
|
|
OFStream os(stdout);
|
|
code->Print(os);
|
|
byte* begin = code->instruction_start();
|
|
byte* end = begin + code->instruction_size();
|
|
disasm::Disassembler::Disassemble(stdout, begin, end);
|
|
#endif
|
|
int32_t diff = 512;
|
|
|
|
int mode_mask = (1 << RelocInfo::WASM_MEMORY_SIZE_REFERENCE);
|
|
for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) {
|
|
DCHECK(RelocInfo::IsWasmMemorySizeReference(it.rinfo()->rmode()));
|
|
it.rinfo()->update_wasm_memory_size(
|
|
isolate, it.rinfo()->wasm_memory_size_reference(),
|
|
it.rinfo()->wasm_memory_size_reference() + diff, SKIP_ICACHE_FLUSH);
|
|
}
|
|
|
|
ret_value = runnable.Call();
|
|
CHECK_NE(ret_value, bit_cast<uint32_t>(0xdeadbeef));
|
|
|
|
#ifdef OBJECT_PRINT
|
|
code->Print(os);
|
|
begin = code->instruction_start();
|
|
end = begin + code->instruction_size();
|
|
disasm::Disassembler::Disassemble(stdout, begin, end);
|
|
#endif
|
|
}
|
|
#undef __
|