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// Copyright 2021 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_CCTEST_TEST_HELPER_RISCV_H_
#define V8_CCTEST_TEST_HELPER_RISCV_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 "src/utils/utils.h"
#include "test/cctest/cctest.h"
#define PRINT_RES(res, expected_res, in_hex) \
if (in_hex) std::cout << "[hex-form]" << std::hex; \
std::cout << "res = " << (res) << " expected = " << (expected_res) \
<< std::endl;
namespace v8 {
namespace internal {
using Func = std::function<void(MacroAssembler&)>;
int32_t GenAndRunTest(Func test_generator);
// f.Call(...) interface is implemented as varargs in V8. For varargs,
// floating-point arguments and return values are passed in GPRs, therefore
// the special handling to reinterpret floating-point as integer values when
// passed in and out of f.Call()
template <typename OUTPUT_T, typename INPUT_T>
OUTPUT_T GenAndRunTest(INPUT_T input0, Func test_generator) {
DCHECK((sizeof(INPUT_T) == 4 || sizeof(INPUT_T) == 8));
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
// handle floating-point parameters
if (std::is_same<float, INPUT_T>::value) {
assm.fmv_w_x(fa0, a0);
} else if (std::is_same<double, INPUT_T>::value) {
UNIMPLEMENTED();
}
test_generator(assm);
// handle floating-point result
if (std::is_same<float, OUTPUT_T>::value) {
assm.fmv_x_w(a0, fa0);
} else if (std::is_same<double, OUTPUT_T>::value) {
UNIMPLEMENTED();
}
assm.jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
using OINT_T = typename std::conditional<
std::is_integral<OUTPUT_T>::value, OUTPUT_T,
typename std::conditional<sizeof(OUTPUT_T) == 4, int32_t,
int64_t>::type>::type;
using IINT_T = typename std::conditional<
std::is_integral<INPUT_T>::value, INPUT_T,
typename std::conditional<sizeof(INPUT_T) == 4, int32_t,
int64_t>::type>::type;
auto f = GeneratedCode<OINT_T(IINT_T)>::FromCode(*code);
auto res = f.Call(base::bit_cast<IINT_T>(input0));
return base::bit_cast<OUTPUT_T>(res);
}
template <typename OUTPUT_T, typename INPUT_T>
OUTPUT_T GenAndRunTest(INPUT_T input0, INPUT_T input1, Func test_generator) {
DCHECK((sizeof(INPUT_T) == 4 || sizeof(INPUT_T) == 8));
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
// handle floating-point parameters
if (std::is_same<float, INPUT_T>::value) {
assm.fmv_w_x(fa0, a0);
assm.fmv_w_x(fa1, a1);
} else if (std::is_same<double, INPUT_T>::value) {
UNIMPLEMENTED();
}
test_generator(assm);
// handle floating-point result
if (std::is_same<float, OUTPUT_T>::value) {
assm.fmv_x_w(a0, fa0);
} else if (std::is_same<double, OUTPUT_T>::value) {
UNIMPLEMENTED();
}
assm.jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
using OINT_T = typename std::conditional<
std::is_integral<OUTPUT_T>::value, OUTPUT_T,
typename std::conditional<sizeof(OUTPUT_T) == 4, int32_t,
int64_t>::type>::type;
using IINT_T = typename std::conditional<
std::is_integral<INPUT_T>::value, INPUT_T,
typename std::conditional<sizeof(INPUT_T) == 4, int32_t,
int64_t>::type>::type;
auto f = GeneratedCode<OINT_T(IINT_T, IINT_T)>::FromCode(*code);
auto res =
f.Call(base::bit_cast<IINT_T>(input0), base::bit_cast<IINT_T>(input1));
return base::bit_cast<OUTPUT_T>(res);
}
template <typename OUTPUT_T, typename INPUT_T>
OUTPUT_T GenAndRunTest(INPUT_T input0, INPUT_T input1, INPUT_T input2,
Func test_generator) {
DCHECK((sizeof(INPUT_T) == 4 || sizeof(INPUT_T) == 8));
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
// handle floating-point parameters
if (std::is_same<float, INPUT_T>::value) {
assm.fmv_w_x(fa0, a0);
assm.fmv_w_x(fa1, a1);
assm.fmv_w_x(fa2, a2);
} else if (std::is_same<double, INPUT_T>::value) {
UNIMPLEMENTED();
}
test_generator(assm);
// handle floating-point result
if (std::is_same<float, OUTPUT_T>::value) {
assm.fmv_x_w(a0, fa0);
} else if (std::is_same<double, OUTPUT_T>::value) {
UNIMPLEMENTED();
}
assm.jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
using OINT_T = typename std::conditional<
std::is_integral<OUTPUT_T>::value, OUTPUT_T,
typename std::conditional<sizeof(OUTPUT_T) == 4, int32_t,
int64_t>::type>::type;
using IINT_T = typename std::conditional<
std::is_integral<INPUT_T>::value, INPUT_T,
typename std::conditional<sizeof(INPUT_T) == 4, int32_t,
int64_t>::type>::type;
auto f = GeneratedCode<OINT_T(IINT_T, IINT_T, IINT_T)>::FromCode(*code);
auto res =
f.Call(base::bit_cast<IINT_T>(input0), base::bit_cast<IINT_T>(input1),
base::bit_cast<IINT_T>(input2));
return base::bit_cast<OUTPUT_T>(res);
}
template <typename T>
void GenAndRunTestForLoadStore(T value, Func test_generator) {
DCHECK(sizeof(T) == 4 || sizeof(T) == 8);
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
if (std::is_same<float, T>::value) {
assm.fmv_w_x(fa0, a1);
} else if (std::is_same<double, T>::value) {
UNIMPLEMENTED();
}
test_generator(assm);
if (std::is_same<float, T>::value) {
assm.fmv_x_w(a0, fa0);
} else if (std::is_same<double, T>::value) {
UNIMPLEMENTED();
}
assm.jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
using INT_T = typename std::conditional<
std::is_integral<T>::value, T,
typename std::conditional<sizeof(T) == 4, int32_t, int64_t>::type>::type;
auto f = GeneratedCode<INT_T(void* base, INT_T val)>::FromCode(*code);
int64_t tmp = 0;
auto res = f.Call(&tmp, base::bit_cast<INT_T>(value));
CHECK_EQ(base::bit_cast<T>(res), value);
}
template <typename T, typename Func>
void GenAndRunTestForLRSC(T value, Func test_generator) {
DCHECK(sizeof(T) == 4 || sizeof(T) == 8);
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
if (std::is_same<float, T>::value) {
assm.fmv_w_x(fa0, a1);
} else if (std::is_same<double, T>::value) {
UNIMPLEMENTED();
}
if (std::is_same<int32_t, T>::value) {
assm.sw(a1, a0, 0);
} else if (std::is_same<int64_t, T>::value) {
UNREACHABLE();
}
test_generator(assm);
if (std::is_same<float, T>::value) {
assm.fmv_x_w(a0, fa0);
} else if (std::is_same<double, T>::value) {
UNIMPLEMENTED();
}
assm.jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
#if defined(DEBUG)
code->Print();
#endif
using INT_T =
typename std::conditional<sizeof(T) == 4, int32_t, int64_t>::type;
T tmp = 0;
auto f = GeneratedCode<INT_T(void* base, INT_T val)>::FromCode(*code);
auto res = f.Call(&tmp, base::bit_cast<T>(value));
CHECK_EQ(base::bit_cast<T>(res), static_cast<T>(0));
}
template <typename INPUT_T, typename OUTPUT_T, typename Func>
OUTPUT_T GenAndRunTestForAMO(INPUT_T input0, INPUT_T input1,
Func test_generator) {
DCHECK(sizeof(INPUT_T) == 4 || sizeof(INPUT_T) == 8);
DCHECK(sizeof(OUTPUT_T) == 4 || sizeof(OUTPUT_T) == 8);
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
MacroAssembler assm(isolate, v8::internal::CodeObjectRequired::kYes);
// handle floating-point parameters
if (std::is_same<float, INPUT_T>::value) {
assm.fmv_w_x(fa0, a1);
assm.fmv_w_x(fa1, a2);
} else if (std::is_same<double, INPUT_T>::value) {
UNIMPLEMENTED();
}
// store base integer
if (std::is_same<int32_t, INPUT_T>::value ||
std::is_same<uint32_t, INPUT_T>::value) {
assm.sw(a1, a0, 0);
} else if (std::is_same<int64_t, INPUT_T>::value ||
std::is_same<uint64_t, INPUT_T>::value) {
UNREACHABLE();
}
test_generator(assm);
// handle floating-point result
if (std::is_same<float, OUTPUT_T>::value) {
assm.fmv_x_w(a0, fa0);
} else if (std::is_same<double, OUTPUT_T>::value) {
UNIMPLEMENTED();
}
// load written integer
if (std::is_same<int32_t, INPUT_T>::value ||
std::is_same<uint32_t, INPUT_T>::value) {
assm.lw(a0, a0, 0);
} else if (std::is_same<int64_t, INPUT_T>::value ||
std::is_same<uint64_t, INPUT_T>::value) {
UNREACHABLE();
}
assm.jr(ra);
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
Factory::CodeBuilder(isolate, desc, CodeKind::FOR_TESTING).Build();
#if defined(DEBUG)
code->Print();
#endif
OUTPUT_T tmp = 0;
auto f =
GeneratedCode<OUTPUT_T(void* base, INPUT_T, INPUT_T)>::FromCode(*code);
auto res = f.Call(&tmp, base::bit_cast<INPUT_T>(input0),
base::bit_cast<INPUT_T>(input1));
return base::bit_cast<OUTPUT_T>(res);
}
Handle<Code> AssembleCodeImpl(Func assemble);
template <typename Signature>
GeneratedCode<Signature> AssembleCode(Func assemble) {
return GeneratedCode<Signature>::FromCode(*AssembleCodeImpl(assemble));
}
template <typename T>
T UseCanonicalNan(T x) {
return isnan(x) ? std::numeric_limits<T>::quiet_NaN() : x;
}
} // namespace internal
} // namespace v8
#endif // V8_CCTEST_TEST_HELPER_RISCV_H_
|
