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// Copyright 2021 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <iostream>
#include "src/base/utils/random-number-generator.h"
#include "src/codegen/assembler-inl.h"
#include "src/codegen/macro-assembler.h"
#include "src/diagnostics/disassembler.h"
#include "src/execution/simulator.h"
#include "src/heap/factory.h"
#include "src/init/v8.h"
#include "test/cctest/cctest.h"
namespace v8 {
namespace internal {
// Define these function prototypes to match JSEntryFunction in execution.cc.
// TODO(mips64): Refine these signatures per test case.
using F1 = void*(int x, int p1, int p2, int p3, int p4);
using F2 = void*(int x, int y, int p2, int p3, int p4);
using F3 = void*(void* p, int p1, int p2, int p3, int p4);
using F4 = void*(int64_t x, int64_t y, int64_t p2, int64_t p3, int64_t p4);
using F5 = void*(void* p0, void* p1, int p2, int p3, int p4);
#define __ assm.
TEST(RISCV_SIMPLE0) {
CcTest::InitializeVM();
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
// Addition.
__ add(a0, a0, a1);
__ jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
auto f = GeneratedCode<F2>::FromCode(isolate, *code);
int64_t res = reinterpret_cast<int64_t>(f.Call(0xAB0, 0xC, 0, 0, 0));
CHECK_EQ(0xABCL, res);
}
TEST(RISCV_SIMPLE1) {
CcTest::InitializeVM();
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
// Addition.
__ addi(a0, a0, -1);
__ jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
auto f = GeneratedCode<F1>::FromCode(isolate, *code);
int64_t res = reinterpret_cast<int64_t>(f.Call(100, 0, 0, 0, 0));
CHECK_EQ(99L, res);
}
// Loop 100 times, adding loop counter to result
TEST(RISCV_SIMPLE2) {
CcTest::InitializeVM();
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
Label L, C;
// input a0, result a1
__ mv(a1, a0);
__ RV_li(a0, 0);
__ j(&C);
__ bind(&L);
__ add(a0, a0, a1);
__ addi(a1, a1, -1);
__ bind(&C);
__ bgtz(a1, &L);
__ jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
#ifdef DEBUG
code->Print();
#endif
auto f = GeneratedCode<F1>::FromCode(isolate, *code);
int64_t res = reinterpret_cast<int64_t>(f.Call(100, 0, 0, 0, 0));
CHECK_EQ(5050, res);
}
// Test part of Load and Store
TEST(RISCV_SIMPLE3) {
CcTest::InitializeVM();
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
__ sb(a0, sp, -4);
__ lb(a0, sp, -4);
__ jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
auto f = GeneratedCode<F1>::FromCode(isolate, *code);
int64_t res = reinterpret_cast<int64_t>(f.Call(255, 0, 0, 0, 0));
CHECK_EQ(-1, res);
}
// Test loading immediates of various sizes
TEST(LI) {
CcTest::InitializeVM();
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
Label error;
// Load 0
__ RV_li(a0, 0l);
__ bnez(a0, &error);
// Load small number (<12 bits)
__ RV_li(a1, 5);
__ RV_li(a2, -5);
__ add(a0, a1, a2);
__ bnez(a0, &error);
// Load medium number (13-32 bits)
__ RV_li(a1, 124076833);
__ RV_li(a2, -124076833);
__ add(a0, a1, a2);
__ bnez(a0, &error);
// Load large number (33-64 bits)
__ RV_li(a1, 11649936536080);
__ RV_li(a2, -11649936536080);
__ add(a0, a1, a2);
__ bnez(a0, &error);
// Load large number (33-64 bits)
__ RV_li(a1, 1070935975390360080);
__ RV_li(a2, -1070935975390360080);
__ add(a0, a1, a2);
__ bnez(a0, &error);
__ mv(a0, zero_reg);
__ jr(ra);
__ bind(&error);
__ jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
auto f = GeneratedCode<F1>::FromCode(isolate, *code);
int64_t res = reinterpret_cast<int64_t>(f.Call(0xDEADBEEF, 0, 0, 0, 0));
CHECK_EQ(0L, res);
}
TEST(LI_CONST) {
CcTest::InitializeVM();
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
Label error;
// Load 0
__ li_constant(a0, 0l);
__ bnez(a0, &error);
// Load small number (<12 bits)
__ li_constant(a1, 5);
__ li_constant(a2, -5);
__ add(a0, a1, a2);
__ bnez(a0, &error);
// Load medium number (13-32 bits)
__ li_constant(a1, 124076833);
__ li_constant(a2, -124076833);
__ add(a0, a1, a2);
__ bnez(a0, &error);
// Load large number (33-64 bits)
__ li_constant(a1, 11649936536080);
__ li_constant(a2, -11649936536080);
__ add(a0, a1, a2);
__ bnez(a0, &error);
// Load large number (33-64 bits)
__ li_constant(a1, 1070935975390360080);
__ li_constant(a2, -1070935975390360080);
__ add(a0, a1, a2);
__ bnez(a0, &error);
__ mv(a0, zero_reg);
__ jr(ra);
__ bind(&error);
__ jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
auto f = GeneratedCode<F1>::FromCode(isolate, *code);
int64_t res = reinterpret_cast<int64_t>(f.Call(0xDEADBEEF, 0, 0, 0, 0));
CHECK_EQ(0L, res);
}
#undef __
} // namespace internal
} // namespace v8
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