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v8/test/cctest/compiler/test-run-native-calls.cc
clemensh c32b202014 Pass debug name as Vector instead of const char* 
This allows to also pass non-null-terminated values, and values containing null
characters. Both might happen in wasm.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1911313002

Cr-Commit-Position: refs/heads/master@{#35795}
2016-04-26 14:37:05 +00:00

1268 lines
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// 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 "src/assembler.h"
#include "src/codegen.h"
#include "src/compiler/linkage.h"
#include "src/compiler/raw-machine-assembler.h"
#include "src/machine-type.h"
#include "src/register-configuration.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/codegen-tester.h"
#include "test/cctest/compiler/graph-builder-tester.h"
#include "test/cctest/compiler/value-helper.h"
namespace v8 {
namespace internal {
namespace compiler {
namespace {
typedef float float32;
typedef double float64;
// Picks a representative pair of integers from the given range.
// If there are less than {max_pairs} possible pairs, do them all, otherwise try
// to select a representative set.
class Pairs {
public:
Pairs(int max_pairs, int range, const int* codes)
: range_(range),
codes_(codes),
max_pairs_(std::min(max_pairs, range_ * range_)),
counter_(0) {}
bool More() { return counter_ < max_pairs_; }
void Next(int* r0, int* r1, bool same_is_ok) {
do {
// Find the next pair.
if (exhaustive()) {
*r0 = codes_[counter_ % range_];
*r1 = codes_[counter_ / range_];
} else {
// Try each integer at least once for both r0 and r1.
int index = counter_ / 2;
if (counter_ & 1) {
*r0 = codes_[index % range_];
*r1 = codes_[index / range_];
} else {
*r1 = codes_[index % range_];
*r0 = codes_[index / range_];
}
}
counter_++;
if ((same_is_ok) || (*r0 != *r1)) break;
if (counter_ == max_pairs_) {
// For the last hurrah, reg#0 with reg#n-1
*r0 = codes_[0];
*r1 = codes_[range_ - 1];
break;
}
} while (true);
}
private:
int range_;
const int* codes_;
int max_pairs_;
int counter_;
bool exhaustive() { return max_pairs_ == (range_ * range_); }
};
// Pairs of general purpose registers.
class RegisterPairs : public Pairs {
public:
RegisterPairs()
: Pairs(
100,
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_general_registers(),
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->allocatable_general_codes()) {}
};
// Pairs of double registers.
class Float32RegisterPairs : public Pairs {
public:
Float32RegisterPairs()
: Pairs(
100,
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_aliased_double_registers(),
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->allocatable_double_codes()) {}
};
// Pairs of double registers.
class Float64RegisterPairs : public Pairs {
public:
Float64RegisterPairs()
: Pairs(
100,
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_aliased_double_registers(),
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->allocatable_double_codes()) {}
};
// Helper for allocating either an GP or FP reg, or the next stack slot.
struct Allocator {
Allocator(int* gp, int gpc, int* fp, int fpc)
: gp_count(gpc),
gp_offset(0),
gp_regs(gp),
fp_count(fpc),
fp_offset(0),
fp_regs(fp),
stack_offset(0) {}
int gp_count;
int gp_offset;
int* gp_regs;
int fp_count;
int fp_offset;
int* fp_regs;
int stack_offset;
LinkageLocation Next(MachineType type) {
if (IsFloatingPoint(type.representation())) {
// Allocate a floating point register/stack location.
if (fp_offset < fp_count) {
return LinkageLocation::ForRegister(fp_regs[fp_offset++]);
} else {
int offset = -1 - stack_offset;
stack_offset += StackWords(type);
return LinkageLocation::ForCallerFrameSlot(offset);
}
} else {
// Allocate a general purpose register/stack location.
if (gp_offset < gp_count) {
return LinkageLocation::ForRegister(gp_regs[gp_offset++]);
} else {
int offset = -1 - stack_offset;
stack_offset += StackWords(type);
return LinkageLocation::ForCallerFrameSlot(offset);
}
}
}
int StackWords(MachineType type) {
// TODO(titzer): hack. float32 occupies 8 bytes on stack.
int size = IsFloatingPoint(type.representation())
? kDoubleSize
: (1 << ElementSizeLog2Of(type.representation()));
return size <= kPointerSize ? 1 : size / kPointerSize;
}
void Reset() {
fp_offset = 0;
gp_offset = 0;
stack_offset = 0;
}
};
class RegisterConfig {
public:
RegisterConfig(Allocator& p, Allocator& r) : params(p), rets(r) {}
CallDescriptor* Create(Zone* zone, MachineSignature* msig) {
rets.Reset();
params.Reset();
LocationSignature::Builder locations(zone, msig->return_count(),
msig->parameter_count());
// Add return location(s).
const int return_count = static_cast<int>(locations.return_count_);
for (int i = 0; i < return_count; i++) {
locations.AddReturn(rets.Next(msig->GetReturn(i)));
}
// Add register and/or stack parameter(s).
const int parameter_count = static_cast<int>(msig->parameter_count());
for (int i = 0; i < parameter_count; i++) {
locations.AddParam(params.Next(msig->GetParam(i)));
}
const RegList kCalleeSaveRegisters = 0;
const RegList kCalleeSaveFPRegisters = 0;
MachineType target_type = MachineType::AnyTagged();
LinkageLocation target_loc = LinkageLocation::ForAnyRegister();
int stack_param_count = params.stack_offset;
return new (zone) CallDescriptor( // --
CallDescriptor::kCallCodeObject, // kind
target_type, // target MachineType
target_loc, // target location
msig, // machine_sig
locations.Build(), // location_sig
stack_param_count, // stack_parameter_count
compiler::Operator::kNoProperties, // properties
kCalleeSaveRegisters, // callee-saved registers
kCalleeSaveFPRegisters, // callee-saved fp regs
CallDescriptor::kUseNativeStack, // flags
"c-call");
}
private:
Allocator& params;
Allocator& rets;
};
const int kMaxParamCount = 64;
MachineType kIntTypes[kMaxParamCount + 1] = {
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32(), MachineType::Int32(),
MachineType::Int32(), MachineType::Int32()};
// For making uniform int32 signatures shorter.
class Int32Signature : public MachineSignature {
public:
explicit Int32Signature(int param_count)
: MachineSignature(1, param_count, kIntTypes) {
CHECK(param_count <= kMaxParamCount);
}
};
Handle<Code> CompileGraph(const char* name, CallDescriptor* desc, Graph* graph,
Schedule* schedule = nullptr) {
Isolate* isolate = CcTest::InitIsolateOnce();
CompilationInfo info(ArrayVector("testing"), isolate, graph->zone());
Handle<Code> code =
Pipeline::GenerateCodeForTesting(&info, desc, graph, schedule);
CHECK(!code.is_null());
#ifdef ENABLE_DISASSEMBLER
if (FLAG_print_opt_code) {
OFStream os(stdout);
code->Disassemble(name, os);
}
#endif
return code;
}
Handle<Code> WrapWithCFunction(Handle<Code> inner, CallDescriptor* desc) {
Zone zone(inner->GetIsolate()->allocator());
MachineSignature* msig =
const_cast<MachineSignature*>(desc->GetMachineSignature());
int param_count = static_cast<int>(msig->parameter_count());
GraphAndBuilders caller(&zone);
{
GraphAndBuilders& b = caller;
Node* start = b.graph()->NewNode(b.common()->Start(param_count + 3));
b.graph()->SetStart(start);
Node* target = b.graph()->NewNode(b.common()->HeapConstant(inner));
// Add arguments to the call.
Node** args = zone.NewArray<Node*>(param_count + 3);
int index = 0;
args[index++] = target;
for (int i = 0; i < param_count; i++) {
args[index] = b.graph()->NewNode(b.common()->Parameter(i), start);
index++;
}
args[index++] = start; // effect.
args[index++] = start; // control.
// Build the call and return nodes.
Node* call =
b.graph()->NewNode(b.common()->Call(desc), param_count + 3, args);
Node* ret = b.graph()->NewNode(b.common()->Return(), call, call, start);
b.graph()->SetEnd(ret);
}
CallDescriptor* cdesc = Linkage::GetSimplifiedCDescriptor(&zone, msig);
return CompileGraph("wrapper", cdesc, caller.graph());
}
template <typename CType>
class ArgsBuffer {
public:
static const int kMaxParamCount = 64;
explicit ArgsBuffer(int count, int seed = 1) : count_(count), seed_(seed) {
// initialize the buffer with "seed 0"
seed_ = 0;
Mutate();
seed_ = seed;
}
class Sig : public MachineSignature {
public:
explicit Sig(int param_count)
: MachineSignature(1, param_count, MachTypes()) {
CHECK(param_count <= kMaxParamCount);
}
};
static MachineType* MachTypes() {
MachineType t = MachineTypeForC<CType>();
static MachineType kTypes[kMaxParamCount + 1] = {
t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t,
t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t,
t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t, t};
return kTypes;
}
Node* MakeConstant(RawMachineAssembler& raw, int32_t value) {
return raw.Int32Constant(value);
}
Node* MakeConstant(RawMachineAssembler& raw, int64_t value) {
return raw.Int64Constant(value);
}
Node* MakeConstant(RawMachineAssembler& raw, float32 value) {
return raw.Float32Constant(value);
}
Node* MakeConstant(RawMachineAssembler& raw, float64 value) {
return raw.Float64Constant(value);
}
Node* LoadInput(RawMachineAssembler& raw, Node* base, int index) {
Node* offset = raw.Int32Constant(index * sizeof(CType));
return raw.Load(MachineTypeForC<CType>(), base, offset);
}
Node* StoreOutput(RawMachineAssembler& raw, Node* value) {
Node* base = raw.PointerConstant(&output);
Node* offset = raw.Int32Constant(0);
return raw.Store(MachineTypeForC<CType>().representation(), base, offset,
value, kNoWriteBarrier);
}
// Computes the next set of inputs by updating the {input} array.
void Mutate();
void Reset() { memset(input, 0, sizeof(input)); }
int count_;
int seed_;
CType input[kMaxParamCount];
CType output;
};
template <>
void ArgsBuffer<int32_t>::Mutate() {
uint32_t base = 1111111111u * seed_;
for (int j = 0; j < count_ && j < kMaxParamCount; j++) {
input[j] = static_cast<int32_t>(256 + base + j + seed_ * 13);
}
output = -1;
seed_++;
}
template <>
void ArgsBuffer<int64_t>::Mutate() {
uint64_t base = 11111111111111111ull * seed_;
for (int j = 0; j < count_ && j < kMaxParamCount; j++) {
input[j] = static_cast<int64_t>(256 + base + j + seed_ * 13);
}
output = -1;
seed_++;
}
template <>
void ArgsBuffer<float32>::Mutate() {
float64 base = -33.25 * seed_;
for (int j = 0; j < count_ && j < kMaxParamCount; j++) {
input[j] = 256 + base + j + seed_ * 13;
}
output = std::numeric_limits<float32>::quiet_NaN();
seed_++;
}
template <>
void ArgsBuffer<float64>::Mutate() {
float64 base = -111.25 * seed_;
for (int j = 0; j < count_ && j < kMaxParamCount; j++) {
input[j] = 256 + base + j + seed_ * 13;
}
output = std::numeric_limits<float64>::quiet_NaN();
seed_++;
}
int ParamCount(CallDescriptor* desc) {
return static_cast<int>(desc->GetMachineSignature()->parameter_count());
}
template <typename CType>
class Computer {
public:
static void Run(CallDescriptor* desc,
void (*build)(CallDescriptor*, RawMachineAssembler&),
CType (*compute)(CallDescriptor*, CType* inputs),
int seed = 1) {
int num_params = ParamCount(desc);
CHECK_LE(num_params, kMaxParamCount);
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
Handle<Code> inner = Handle<Code>::null();
{
// Build the graph for the computation.
Zone zone(isolate->allocator());
Graph graph(&zone);
RawMachineAssembler raw(isolate, &graph, desc);
build(desc, raw);
inner = CompileGraph("Compute", desc, &graph, raw.Export());
}
CSignature0<int32_t> csig;
ArgsBuffer<CType> io(num_params, seed);
{
// constant mode.
Handle<Code> wrapper = Handle<Code>::null();
{
// Wrap the above code with a callable function that passes constants.
Zone zone(isolate->allocator());
Graph graph(&zone);
CallDescriptor* cdesc = Linkage::GetSimplifiedCDescriptor(&zone, &csig);
RawMachineAssembler raw(isolate, &graph, cdesc);
Node* target = raw.HeapConstant(inner);
Node** args = zone.NewArray<Node*>(num_params);
for (int i = 0; i < num_params; i++) {
args[i] = io.MakeConstant(raw, io.input[i]);
}
Node* call = raw.CallN(desc, target, args);
Node* store = io.StoreOutput(raw, call);
USE(store);
raw.Return(raw.Int32Constant(seed));
wrapper =
CompileGraph("Compute-wrapper-const", cdesc, &graph, raw.Export());
}
CodeRunner<int32_t> runnable(isolate, wrapper, &csig);
// Run the code, checking it against the reference.
CType expected = compute(desc, io.input);
int32_t check_seed = runnable.Call();
CHECK_EQ(seed, check_seed);
CHECK_EQ(expected, io.output);
}
{
// buffer mode.
Handle<Code> wrapper = Handle<Code>::null();
{
// Wrap the above code with a callable function that loads from {input}.
Zone zone(isolate->allocator());
Graph graph(&zone);
CallDescriptor* cdesc = Linkage::GetSimplifiedCDescriptor(&zone, &csig);
RawMachineAssembler raw(isolate, &graph, cdesc);
Node* base = raw.PointerConstant(io.input);
Node* target = raw.HeapConstant(inner);
Node** args = zone.NewArray<Node*>(kMaxParamCount);
for (int i = 0; i < num_params; i++) {
args[i] = io.LoadInput(raw, base, i);
}
Node* call = raw.CallN(desc, target, args);
Node* store = io.StoreOutput(raw, call);
USE(store);
raw.Return(raw.Int32Constant(seed));
wrapper = CompileGraph("Compute-wrapper", cdesc, &graph, raw.Export());
}
CodeRunner<int32_t> runnable(isolate, wrapper, &csig);
// Run the code, checking it against the reference.
for (int i = 0; i < 5; i++) {
CType expected = compute(desc, io.input);
int32_t check_seed = runnable.Call();
CHECK_EQ(seed, check_seed);
CHECK_EQ(expected, io.output);
io.Mutate();
}
}
}
};
} // namespace
static void TestInt32Sub(CallDescriptor* desc) {
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
Zone zone(isolate->allocator());
GraphAndBuilders inner(&zone);
{
// Build the add function.
GraphAndBuilders& b = inner;
Node* start = b.graph()->NewNode(b.common()->Start(5));
b.graph()->SetStart(start);
Node* p0 = b.graph()->NewNode(b.common()->Parameter(0), start);
Node* p1 = b.graph()->NewNode(b.common()->Parameter(1), start);
Node* add = b.graph()->NewNode(b.machine()->Int32Sub(), p0, p1);
Node* ret = b.graph()->NewNode(b.common()->Return(), add, start, start);
b.graph()->SetEnd(ret);
}
Handle<Code> inner_code = CompileGraph("Int32Sub", desc, inner.graph());
Handle<Code> wrapper = WrapWithCFunction(inner_code, desc);
MachineSignature* msig =
const_cast<MachineSignature*>(desc->GetMachineSignature());
CodeRunner<int32_t> runnable(isolate, wrapper,
CSignature::FromMachine(&zone, msig));
FOR_INT32_INPUTS(i) {
FOR_INT32_INPUTS(j) {
int32_t expected = static_cast<int32_t>(static_cast<uint32_t>(*i) -
static_cast<uint32_t>(*j));
int32_t result = runnable.Call(*i, *j);
CHECK_EQ(expected, result);
}
}
}
static void CopyTwentyInt32(CallDescriptor* desc) {
const int kNumParams = 20;
int32_t input[kNumParams];
int32_t output[kNumParams];
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
Handle<Code> inner = Handle<Code>::null();
{
// Writes all parameters into the output buffer.
Zone zone(isolate->allocator());
Graph graph(&zone);
RawMachineAssembler raw(isolate, &graph, desc);
Node* base = raw.PointerConstant(output);
for (int i = 0; i < kNumParams; i++) {
Node* offset = raw.Int32Constant(i * sizeof(int32_t));
raw.Store(MachineRepresentation::kWord32, base, offset, raw.Parameter(i),
kNoWriteBarrier);
}
raw.Return(raw.Int32Constant(42));
inner = CompileGraph("CopyTwentyInt32", desc, &graph, raw.Export());
}
CSignature0<int32_t> csig;
Handle<Code> wrapper = Handle<Code>::null();
{
// Loads parameters from the input buffer and calls the above code.
Zone zone(isolate->allocator());
Graph graph(&zone);
CallDescriptor* cdesc = Linkage::GetSimplifiedCDescriptor(&zone, &csig);
RawMachineAssembler raw(isolate, &graph, cdesc);
Node* base = raw.PointerConstant(input);
Node* target = raw.HeapConstant(inner);
Node** args = zone.NewArray<Node*>(kNumParams);
for (int i = 0; i < kNumParams; i++) {
Node* offset = raw.Int32Constant(i * sizeof(int32_t));
args[i] = raw.Load(MachineType::Int32(), base, offset);
}
Node* call = raw.CallN(desc, target, args);
raw.Return(call);
wrapper =
CompileGraph("CopyTwentyInt32-wrapper", cdesc, &graph, raw.Export());
}
CodeRunner<int32_t> runnable(isolate, wrapper, &csig);
// Run the code, checking it correctly implements the memcpy.
for (int i = 0; i < 5; i++) {
uint32_t base = 1111111111u * i;
for (int j = 0; j < kNumParams; j++) {
input[j] = static_cast<int32_t>(base + 13 * j);
}
memset(output, 0, sizeof(output));
CHECK_EQ(42, runnable.Call());
for (int j = 0; j < kNumParams; j++) {
CHECK_EQ(input[j], output[j]);
}
}
}
static void Test_RunInt32SubWithRet(int retreg) {
Int32Signature sig(2);
base::AccountingAllocator allocator;
Zone zone(&allocator);
RegisterPairs pairs;
while (pairs.More()) {
int parray[2];
int rarray[] = {retreg};
pairs.Next(&parray[0], &parray[1], false);
Allocator params(parray, 2, nullptr, 0);
Allocator rets(rarray, 1, nullptr, 0);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
TestInt32Sub(desc);
}
}
// Separate tests for parallelization.
#define TEST_INT32_SUB_WITH_RET(x) \
TEST(Run_Int32Sub_all_allocatable_pairs_##x) { \
if (x < Register::kNumRegisters && \
Register::from_code(x).IsAllocatable()) { \
Test_RunInt32SubWithRet(x); \
} \
}
TEST_INT32_SUB_WITH_RET(0)
TEST_INT32_SUB_WITH_RET(1)
TEST_INT32_SUB_WITH_RET(2)
TEST_INT32_SUB_WITH_RET(3)
TEST_INT32_SUB_WITH_RET(4)
TEST_INT32_SUB_WITH_RET(5)
TEST_INT32_SUB_WITH_RET(6)
TEST_INT32_SUB_WITH_RET(7)
TEST_INT32_SUB_WITH_RET(8)
TEST_INT32_SUB_WITH_RET(9)
TEST_INT32_SUB_WITH_RET(10)
TEST_INT32_SUB_WITH_RET(11)
TEST_INT32_SUB_WITH_RET(12)
TEST_INT32_SUB_WITH_RET(13)
TEST_INT32_SUB_WITH_RET(14)
TEST_INT32_SUB_WITH_RET(15)
TEST_INT32_SUB_WITH_RET(16)
TEST_INT32_SUB_WITH_RET(17)
TEST_INT32_SUB_WITH_RET(18)
TEST_INT32_SUB_WITH_RET(19)
TEST(Run_Int32Sub_all_allocatable_single) {
Int32Signature sig(2);
RegisterPairs pairs;
while (pairs.More()) {
base::AccountingAllocator allocator;
Zone zone(&allocator);
int parray[1];
int rarray[1];
pairs.Next(&rarray[0], &parray[0], true);
Allocator params(parray, 1, nullptr, 0);
Allocator rets(rarray, 1, nullptr, 0);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
TestInt32Sub(desc);
}
}
TEST(Run_CopyTwentyInt32_all_allocatable_pairs) {
Int32Signature sig(20);
RegisterPairs pairs;
while (pairs.More()) {
base::AccountingAllocator allocator;
Zone zone(&allocator);
int parray[2];
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0)};
pairs.Next(&parray[0], &parray[1], false);
Allocator params(parray, 2, nullptr, 0);
Allocator rets(rarray, 1, nullptr, 0);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
CopyTwentyInt32(desc);
}
}
template <typename CType>
static void Run_Computation(
CallDescriptor* desc, void (*build)(CallDescriptor*, RawMachineAssembler&),
CType (*compute)(CallDescriptor*, CType* inputs), int seed = 1) {
Computer<CType>::Run(desc, build, compute, seed);
}
static uint32_t coeff[] = {1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29,
31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73,
79, 83, 89, 97, 101, 103, 107, 109, 113};
static void Build_Int32_WeightedSum(CallDescriptor* desc,
RawMachineAssembler& raw) {
Node* result = raw.Int32Constant(0);
for (int i = 0; i < ParamCount(desc); i++) {
Node* term = raw.Int32Mul(raw.Parameter(i), raw.Int32Constant(coeff[i]));
result = raw.Int32Add(result, term);
}
raw.Return(result);
}
static int32_t Compute_Int32_WeightedSum(CallDescriptor* desc, int32_t* input) {
uint32_t result = 0;
for (int i = 0; i < ParamCount(desc); i++) {
result += static_cast<uint32_t>(input[i]) * coeff[i];
}
return static_cast<int32_t>(result);
}
static void Test_Int32_WeightedSum_of_size(int count) {
Int32Signature sig(count);
for (int p0 = 0; p0 < Register::kNumRegisters; p0++) {
if (Register::from_code(p0).IsAllocatable()) {
base::AccountingAllocator allocator;
Zone zone(&allocator);
int parray[] = {p0};
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0)};
Allocator params(parray, 1, nullptr, 0);
Allocator rets(rarray, 1, nullptr, 0);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
Run_Computation<int32_t>(desc, Build_Int32_WeightedSum,
Compute_Int32_WeightedSum, 257 + count);
}
}
}
// Separate tests for parallelization.
#define TEST_INT32_WEIGHTEDSUM(x) \
TEST(Run_Int32_WeightedSum_##x) { Test_Int32_WeightedSum_of_size(x); }
TEST_INT32_WEIGHTEDSUM(1)
TEST_INT32_WEIGHTEDSUM(2)
TEST_INT32_WEIGHTEDSUM(3)
TEST_INT32_WEIGHTEDSUM(4)
TEST_INT32_WEIGHTEDSUM(5)
TEST_INT32_WEIGHTEDSUM(7)
TEST_INT32_WEIGHTEDSUM(9)
TEST_INT32_WEIGHTEDSUM(11)
TEST_INT32_WEIGHTEDSUM(17)
TEST_INT32_WEIGHTEDSUM(19)
template <int which>
static void Build_Select(CallDescriptor* desc, RawMachineAssembler& raw) {
raw.Return(raw.Parameter(which));
}
template <typename CType, int which>
static CType Compute_Select(CallDescriptor* desc, CType* inputs) {
return inputs[which];
}
template <typename CType, int which>
static void RunSelect(CallDescriptor* desc) {
int count = ParamCount(desc);
if (count <= which) return;
Run_Computation<CType>(desc, Build_Select<which>,
Compute_Select<CType, which>,
1044 + which + 3 * sizeof(CType));
}
template <int which>
void Test_Int32_Select() {
int parray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0)};
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0)};
Allocator params(parray, 1, nullptr, 0);
Allocator rets(rarray, 1, nullptr, 0);
RegisterConfig config(params, rets);
base::AccountingAllocator allocator;
Zone zone(&allocator);
for (int i = which + 1; i <= 64; i++) {
Int32Signature sig(i);
CallDescriptor* desc = config.Create(&zone, &sig);
RunSelect<int32_t, which>(desc);
}
}
// Separate tests for parallelization.
#define TEST_INT32_SELECT(x) \
TEST(Run_Int32_Select_##x) { Test_Int32_Select<x>(); }
TEST_INT32_SELECT(0)
TEST_INT32_SELECT(1)
TEST_INT32_SELECT(2)
TEST_INT32_SELECT(3)
TEST_INT32_SELECT(4)
TEST_INT32_SELECT(5)
TEST_INT32_SELECT(6)
TEST_INT32_SELECT(11)
TEST_INT32_SELECT(15)
TEST_INT32_SELECT(19)
TEST_INT32_SELECT(45)
TEST_INT32_SELECT(62)
TEST_INT32_SELECT(63)
TEST(Int64Select_registers) {
if (RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_general_registers() < 2)
return;
if (kPointerSize < 8) return; // TODO(titzer): int64 on 32-bit platforms
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0)};
ArgsBuffer<int64_t>::Sig sig(2);
RegisterPairs pairs;
base::AccountingAllocator allocator;
Zone zone(&allocator);
while (pairs.More()) {
int parray[2];
pairs.Next(&parray[0], &parray[1], false);
Allocator params(parray, 2, nullptr, 0);
Allocator rets(rarray, 1, nullptr, 0);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
RunSelect<int64_t, 0>(desc);
RunSelect<int64_t, 1>(desc);
}
}
TEST(Float32Select_registers) {
if (RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_double_registers() < 2) {
return;
}
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0)};
ArgsBuffer<float32>::Sig sig(2);
Float32RegisterPairs pairs;
base::AccountingAllocator allocator;
Zone zone(&allocator);
while (pairs.More()) {
int parray[2];
pairs.Next(&parray[0], &parray[1], false);
Allocator params(nullptr, 0, parray, 2);
Allocator rets(nullptr, 0, rarray, 1);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
RunSelect<float32, 0>(desc);
RunSelect<float32, 1>(desc);
}
}
TEST(Float64Select_registers) {
if (RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_double_registers() < 2)
return;
if (RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_general_registers() < 2)
return;
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0)};
ArgsBuffer<float64>::Sig sig(2);
Float64RegisterPairs pairs;
base::AccountingAllocator allocator;
Zone zone(&allocator);
while (pairs.More()) {
int parray[2];
pairs.Next(&parray[0], &parray[1], false);
Allocator params(nullptr, 0, parray, 2);
Allocator rets(nullptr, 0, rarray, 1);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
RunSelect<float64, 0>(desc);
RunSelect<float64, 1>(desc);
}
}
TEST(Float32Select_stack_params_return_reg) {
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0)};
Allocator params(nullptr, 0, nullptr, 0);
Allocator rets(nullptr, 0, rarray, 1);
RegisterConfig config(params, rets);
base::AccountingAllocator allocator;
Zone zone(&allocator);
for (int count = 1; count < 6; count++) {
ArgsBuffer<float32>::Sig sig(count);
CallDescriptor* desc = config.Create(&zone, &sig);
RunSelect<float32, 0>(desc);
RunSelect<float32, 1>(desc);
RunSelect<float32, 2>(desc);
RunSelect<float32, 3>(desc);
RunSelect<float32, 4>(desc);
RunSelect<float32, 5>(desc);
}
}
TEST(Float64Select_stack_params_return_reg) {
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0)};
Allocator params(nullptr, 0, nullptr, 0);
Allocator rets(nullptr, 0, rarray, 1);
RegisterConfig config(params, rets);
base::AccountingAllocator allocator;
Zone zone(&allocator);
for (int count = 1; count < 6; count++) {
ArgsBuffer<float64>::Sig sig(count);
CallDescriptor* desc = config.Create(&zone, &sig);
RunSelect<float64, 0>(desc);
RunSelect<float64, 1>(desc);
RunSelect<float64, 2>(desc);
RunSelect<float64, 3>(desc);
RunSelect<float64, 4>(desc);
RunSelect<float64, 5>(desc);
}
}
template <typename CType, int which>
static void Build_Select_With_Call(CallDescriptor* desc,
RawMachineAssembler& raw) {
Handle<Code> inner = Handle<Code>::null();
int num_params = ParamCount(desc);
CHECK_LE(num_params, kMaxParamCount);
{
Isolate* isolate = CcTest::InitIsolateOnce();
// Build the actual select.
Zone zone(isolate->allocator());
Graph graph(&zone);
RawMachineAssembler raw(isolate, &graph, desc);
raw.Return(raw.Parameter(which));
inner = CompileGraph("Select-indirection", desc, &graph, raw.Export());
CHECK(!inner.is_null());
CHECK(inner->IsCode());
}
{
// Build a call to the function that does the select.
Node* target = raw.HeapConstant(inner);
Node** args = raw.zone()->NewArray<Node*>(num_params);
for (int i = 0; i < num_params; i++) {
args[i] = raw.Parameter(i);
}
Node* call = raw.CallN(desc, target, args);
raw.Return(call);
}
}
TEST(Float64StackParamsToStackParams) {
int rarray[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0)};
Allocator params(nullptr, 0, nullptr, 0);
Allocator rets(nullptr, 0, rarray, 1);
base::AccountingAllocator allocator;
Zone zone(&allocator);
ArgsBuffer<float64>::Sig sig(2);
RegisterConfig config(params, rets);
CallDescriptor* desc = config.Create(&zone, &sig);
Run_Computation<float64>(desc, Build_Select_With_Call<float64, 0>,
Compute_Select<float64, 0>, 1098);
Run_Computation<float64>(desc, Build_Select_With_Call<float64, 1>,
Compute_Select<float64, 1>, 1099);
}
void MixedParamTest(int start) {
if (RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_double_registers() < 2)
return;
// TODO(titzer): mix in 64-bit types on all platforms when supported.
#if V8_TARGET_ARCH_32_BIT
static MachineType types[] = {
MachineType::Int32(), MachineType::Float32(), MachineType::Float64(),
MachineType::Int32(), MachineType::Float64(), MachineType::Float32(),
MachineType::Float32(), MachineType::Float64(), MachineType::Int32(),
MachineType::Float32(), MachineType::Int32(), MachineType::Float64(),
MachineType::Float64(), MachineType::Float32(), MachineType::Int32(),
MachineType::Float64(), MachineType::Int32(), MachineType::Float32()};
#else
static MachineType types[] = {
MachineType::Int32(), MachineType::Int64(), MachineType::Float32(),
MachineType::Float64(), MachineType::Int32(), MachineType::Float64(),
MachineType::Float32(), MachineType::Int64(), MachineType::Int64(),
MachineType::Float32(), MachineType::Float32(), MachineType::Int32(),
MachineType::Float64(), MachineType::Float64(), MachineType::Int64(),
MachineType::Int32(), MachineType::Float64(), MachineType::Int32(),
MachineType::Float32()};
#endif
Isolate* isolate = CcTest::InitIsolateOnce();
// Build machine signature
MachineType* params = &types[start];
const int num_params = static_cast<int>(arraysize(types) - start);
// Build call descriptor
int parray_gp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0),
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(1)};
int rarray_gp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0)};
int parray_fp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0),
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(1)};
int rarray_fp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0)};
Allocator palloc(parray_gp, 2, parray_fp, 2);
Allocator ralloc(rarray_gp, 1, rarray_fp, 1);
RegisterConfig config(palloc, ralloc);
for (int which = 0; which < num_params; which++) {
base::AccountingAllocator allocator;
Zone zone(&allocator);
HandleScope scope(isolate);
MachineSignature::Builder builder(&zone, 1, num_params);
builder.AddReturn(params[which]);
for (int j = 0; j < num_params; j++) builder.AddParam(params[j]);
MachineSignature* sig = builder.Build();
CallDescriptor* desc = config.Create(&zone, sig);
Handle<Code> select;
{
// build the select.
Zone zone(&allocator);
Graph graph(&zone);
RawMachineAssembler raw(isolate, &graph, desc);
raw.Return(raw.Parameter(which));
select = CompileGraph("Compute", desc, &graph, raw.Export());
}
{
// call the select.
Handle<Code> wrapper = Handle<Code>::null();
int32_t expected_ret;
char bytes[kDoubleSize];
V8_ALIGNED(8) char output[kDoubleSize];
int expected_size = 0;
CSignature0<int32_t> csig;
{
// Wrap the select code with a callable function that passes constants.
Zone zone(&allocator);
Graph graph(&zone);
CallDescriptor* cdesc = Linkage::GetSimplifiedCDescriptor(&zone, &csig);
RawMachineAssembler raw(isolate, &graph, cdesc);
Node* target = raw.HeapConstant(select);
Node** args = zone.NewArray<Node*>(num_params);
int64_t constant = 0x0102030405060708;
for (int i = 0; i < num_params; i++) {
MachineType param_type = sig->GetParam(i);
Node* konst = nullptr;
if (param_type == MachineType::Int32()) {
int32_t value[] = {static_cast<int32_t>(constant)};
konst = raw.Int32Constant(value[0]);
if (i == which) memcpy(bytes, value, expected_size = 4);
}
if (param_type == MachineType::Int64()) {
int64_t value[] = {static_cast<int64_t>(constant)};
konst = raw.Int64Constant(value[0]);
if (i == which) memcpy(bytes, value, expected_size = 8);
}
if (param_type == MachineType::Float32()) {
float32 value[] = {static_cast<float32>(constant)};
konst = raw.Float32Constant(value[0]);
if (i == which) memcpy(bytes, value, expected_size = 4);
}
if (param_type == MachineType::Float64()) {
float64 value[] = {static_cast<float64>(constant)};
konst = raw.Float64Constant(value[0]);
if (i == which) memcpy(bytes, value, expected_size = 8);
}
CHECK_NOT_NULL(konst);
args[i] = konst;
constant += 0x1010101010101010;
}
Node* call = raw.CallN(desc, target, args);
Node* store =
raw.StoreToPointer(output, sig->GetReturn().representation(), call);
USE(store);
expected_ret = static_cast<int32_t>(constant);
raw.Return(raw.Int32Constant(expected_ret));
wrapper = CompileGraph("Select-mixed-wrapper-const", cdesc, &graph,
raw.Export());
}
CodeRunner<int32_t> runnable(isolate, wrapper, &csig);
CHECK_EQ(expected_ret, runnable.Call());
for (int i = 0; i < expected_size; i++) {
CHECK_EQ(static_cast<int>(bytes[i]), static_cast<int>(output[i]));
}
}
}
}
TEST(MixedParams_0) { MixedParamTest(0); }
TEST(MixedParams_1) { MixedParamTest(1); }
TEST(MixedParams_2) { MixedParamTest(2); }
TEST(MixedParams_3) { MixedParamTest(3); }
template <typename T>
void TestStackSlot(MachineType slot_type, T expected) {
// Test: Generate with a function f which reserves a stack slot, call an inner
// function g from f which writes into the stack slot of f.
if (RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->num_allocatable_double_registers() < 2)
return;
Isolate* isolate = CcTest::InitIsolateOnce();
// Lots of code to generate the build descriptor for the inner function.
int parray_gp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0),
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(1)};
int rarray_gp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableGeneralCode(0)};
int parray_fp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0),
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(1)};
int rarray_fp[] = {
RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
->GetAllocatableDoubleCode(0)};
Allocator palloc(parray_gp, 2, parray_fp, 2);
Allocator ralloc(rarray_gp, 1, rarray_fp, 1);
RegisterConfig config(palloc, ralloc);
Zone zone(isolate->allocator());
HandleScope scope(isolate);
MachineSignature::Builder builder(&zone, 1, 12);
builder.AddReturn(MachineType::Int32());
for (int i = 0; i < 10; i++) {
builder.AddParam(MachineType::Int32());
}
builder.AddParam(slot_type);
builder.AddParam(MachineType::Pointer());
MachineSignature* sig = builder.Build();
CallDescriptor* desc = config.Create(&zone, sig);
// Create inner function g. g has lots of parameters so that they are passed
// over the stack.
Handle<Code> inner;
Graph graph(&zone);
RawMachineAssembler g(isolate, &graph, desc);
g.Store(slot_type.representation(), g.Parameter(11), g.Parameter(10),
WriteBarrierKind::kNoWriteBarrier);
g.Return(g.Parameter(9));
inner = CompileGraph("Compute", desc, &graph, g.Export());
// Create function f with a stack slot which calls the inner function g.
BufferedRawMachineAssemblerTester<T> f(slot_type);
Node* target = f.HeapConstant(inner);
Node* stack_slot = f.StackSlot(slot_type.representation());
Node* args[12];
for (int i = 0; i < 10; i++) {
args[i] = f.Int32Constant(i);
}
args[10] = f.Parameter(0);
args[11] = stack_slot;
f.CallN(desc, target, args);
f.Return(f.Load(slot_type, stack_slot, f.IntPtrConstant(0)));
CHECK_EQ(expected, f.Call(expected));
}
TEST(RunStackSlotInt32) {
int32_t magic = 0x12345678;
TestStackSlot(MachineType::Int32(), magic);
}
#if !V8_TARGET_ARCH_32_BIT
TEST(RunStackSlotInt64) {
int64_t magic = 0x123456789abcdef0;
TestStackSlot(MachineType::Int64(), magic);
}
#endif
TEST(RunStackSlotFloat32) {
float magic = 1234.125f;
TestStackSlot(MachineType::Float32(), magic);
}
TEST(RunStackSlotFloat64) {
double magic = 3456.375;
TestStackSlot(MachineType::Float64(), magic);
}
} // namespace compiler
} // namespace internal
} // namespace v8
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