go-ethereum/core/vm/instructions_test.go
Martin Holst Swende 0fda25e471
eth/tracers, core: use scopecontext in tracers, provide statedb in capturestart (#22333)
Fixes the CaptureStart api to include the EVM, thus being able to set the statedb early on. This pr also exposes the struct we used internally in the interpreter to encapsulate the contract, mem, stack, rstack, so we pass it as a single struct to the tracer, and removes the error returns on the capture methods.
2021-03-25 10:13:14 +01:00

652 lines
24 KiB
Go

// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package vm
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
"github.com/holiman/uint256"
)
type TwoOperandTestcase struct {
X string
Y string
Expected string
}
type twoOperandParams struct {
x string
y string
}
var commonParams []*twoOperandParams
var twoOpMethods map[string]executionFunc
func init() {
// Params is a list of common edgecases that should be used for some common tests
params := []string{
"0000000000000000000000000000000000000000000000000000000000000000", // 0
"0000000000000000000000000000000000000000000000000000000000000001", // +1
"0000000000000000000000000000000000000000000000000000000000000005", // +5
"7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe", // + max -1
"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", // + max
"8000000000000000000000000000000000000000000000000000000000000000", // - max
"8000000000000000000000000000000000000000000000000000000000000001", // - max+1
"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffb", // - 5
"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", // - 1
}
// Params are combined so each param is used on each 'side'
commonParams = make([]*twoOperandParams, len(params)*len(params))
for i, x := range params {
for j, y := range params {
commonParams[i*len(params)+j] = &twoOperandParams{x, y}
}
}
twoOpMethods = map[string]executionFunc{
"add": opAdd,
"sub": opSub,
"mul": opMul,
"div": opDiv,
"sdiv": opSdiv,
"mod": opMod,
"smod": opSmod,
"exp": opExp,
"signext": opSignExtend,
"lt": opLt,
"gt": opGt,
"slt": opSlt,
"sgt": opSgt,
"eq": opEq,
"and": opAnd,
"or": opOr,
"xor": opXor,
"byte": opByte,
"shl": opSHL,
"shr": opSHR,
"sar": opSAR,
}
}
func testTwoOperandOp(t *testing.T, tests []TwoOperandTestcase, opFn executionFunc, name string) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
evmInterpreter = env.interpreter.(*EVMInterpreter)
)
for i, test := range tests {
x := new(uint256.Int).SetBytes(common.Hex2Bytes(test.X))
y := new(uint256.Int).SetBytes(common.Hex2Bytes(test.Y))
expected := new(uint256.Int).SetBytes(common.Hex2Bytes(test.Expected))
stack.push(x)
stack.push(y)
opFn(&pc, evmInterpreter, &ScopeContext{nil, stack, nil})
if len(stack.data) != 1 {
t.Errorf("Expected one item on stack after %v, got %d: ", name, len(stack.data))
}
actual := stack.pop()
if actual.Cmp(expected) != 0 {
t.Errorf("Testcase %v %d, %v(%x, %x): expected %x, got %x", name, i, name, x, y, expected, actual)
}
}
}
func TestByteOp(t *testing.T) {
tests := []TwoOperandTestcase{
{"ABCDEF0908070605040302010000000000000000000000000000000000000000", "00", "AB"},
{"ABCDEF0908070605040302010000000000000000000000000000000000000000", "01", "CD"},
{"00CDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff", "00", "00"},
{"00CDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff", "01", "CD"},
{"0000000000000000000000000000000000000000000000000000000000102030", "1F", "30"},
{"0000000000000000000000000000000000000000000000000000000000102030", "1E", "20"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "20", "00"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "FFFFFFFFFFFFFFFF", "00"},
}
testTwoOperandOp(t, tests, opByte, "byte")
}
func TestSHL(t *testing.T) {
// Testcases from https://github.com/ethereum/EIPs/blob/master/EIPS/eip-145.md#shl-shift-left
tests := []TwoOperandTestcase{
{"0000000000000000000000000000000000000000000000000000000000000001", "01", "0000000000000000000000000000000000000000000000000000000000000002"},
{"0000000000000000000000000000000000000000000000000000000000000001", "ff", "8000000000000000000000000000000000000000000000000000000000000000"},
{"0000000000000000000000000000000000000000000000000000000000000001", "0100", "0000000000000000000000000000000000000000000000000000000000000000"},
{"0000000000000000000000000000000000000000000000000000000000000001", "0101", "0000000000000000000000000000000000000000000000000000000000000000"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "00", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "01", "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "ff", "8000000000000000000000000000000000000000000000000000000000000000"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0100", "0000000000000000000000000000000000000000000000000000000000000000"},
{"0000000000000000000000000000000000000000000000000000000000000000", "01", "0000000000000000000000000000000000000000000000000000000000000000"},
{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "01", "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe"},
}
testTwoOperandOp(t, tests, opSHL, "shl")
}
func TestSHR(t *testing.T) {
// Testcases from https://github.com/ethereum/EIPs/blob/master/EIPS/eip-145.md#shr-logical-shift-right
tests := []TwoOperandTestcase{
{"0000000000000000000000000000000000000000000000000000000000000001", "00", "0000000000000000000000000000000000000000000000000000000000000001"},
{"0000000000000000000000000000000000000000000000000000000000000001", "01", "0000000000000000000000000000000000000000000000000000000000000000"},
{"8000000000000000000000000000000000000000000000000000000000000000", "01", "4000000000000000000000000000000000000000000000000000000000000000"},
{"8000000000000000000000000000000000000000000000000000000000000000", "ff", "0000000000000000000000000000000000000000000000000000000000000001"},
{"8000000000000000000000000000000000000000000000000000000000000000", "0100", "0000000000000000000000000000000000000000000000000000000000000000"},
{"8000000000000000000000000000000000000000000000000000000000000000", "0101", "0000000000000000000000000000000000000000000000000000000000000000"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "00", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "01", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "ff", "0000000000000000000000000000000000000000000000000000000000000001"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0100", "0000000000000000000000000000000000000000000000000000000000000000"},
{"0000000000000000000000000000000000000000000000000000000000000000", "01", "0000000000000000000000000000000000000000000000000000000000000000"},
}
testTwoOperandOp(t, tests, opSHR, "shr")
}
func TestSAR(t *testing.T) {
// Testcases from https://github.com/ethereum/EIPs/blob/master/EIPS/eip-145.md#sar-arithmetic-shift-right
tests := []TwoOperandTestcase{
{"0000000000000000000000000000000000000000000000000000000000000001", "00", "0000000000000000000000000000000000000000000000000000000000000001"},
{"0000000000000000000000000000000000000000000000000000000000000001", "01", "0000000000000000000000000000000000000000000000000000000000000000"},
{"8000000000000000000000000000000000000000000000000000000000000000", "01", "c000000000000000000000000000000000000000000000000000000000000000"},
{"8000000000000000000000000000000000000000000000000000000000000000", "ff", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"8000000000000000000000000000000000000000000000000000000000000000", "0100", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"8000000000000000000000000000000000000000000000000000000000000000", "0101", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "00", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "01", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "ff", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0100", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"},
{"0000000000000000000000000000000000000000000000000000000000000000", "01", "0000000000000000000000000000000000000000000000000000000000000000"},
{"4000000000000000000000000000000000000000000000000000000000000000", "fe", "0000000000000000000000000000000000000000000000000000000000000001"},
{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "f8", "000000000000000000000000000000000000000000000000000000000000007f"},
{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "fe", "0000000000000000000000000000000000000000000000000000000000000001"},
{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "ff", "0000000000000000000000000000000000000000000000000000000000000000"},
{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0100", "0000000000000000000000000000000000000000000000000000000000000000"},
}
testTwoOperandOp(t, tests, opSAR, "sar")
}
func TestAddMod(t *testing.T) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
pc = uint64(0)
)
tests := []struct {
x string
y string
z string
expected string
}{
{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe",
"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe",
},
}
// x + y = 0x1fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd
// in 256 bit repr, fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd
for i, test := range tests {
x := new(uint256.Int).SetBytes(common.Hex2Bytes(test.x))
y := new(uint256.Int).SetBytes(common.Hex2Bytes(test.y))
z := new(uint256.Int).SetBytes(common.Hex2Bytes(test.z))
expected := new(uint256.Int).SetBytes(common.Hex2Bytes(test.expected))
stack.push(z)
stack.push(y)
stack.push(x)
opAddmod(&pc, evmInterpreter, &ScopeContext{nil, stack, nil})
actual := stack.pop()
if actual.Cmp(expected) != 0 {
t.Errorf("Testcase %d, expected %x, got %x", i, expected, actual)
}
}
}
// getResult is a convenience function to generate the expected values
func getResult(args []*twoOperandParams, opFn executionFunc) []TwoOperandTestcase {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
interpreter = env.interpreter.(*EVMInterpreter)
)
result := make([]TwoOperandTestcase, len(args))
for i, param := range args {
x := new(uint256.Int).SetBytes(common.Hex2Bytes(param.x))
y := new(uint256.Int).SetBytes(common.Hex2Bytes(param.y))
stack.push(x)
stack.push(y)
opFn(&pc, interpreter, &ScopeContext{nil, stack, nil})
actual := stack.pop()
result[i] = TwoOperandTestcase{param.x, param.y, fmt.Sprintf("%064x", actual)}
}
return result
}
// utility function to fill the json-file with testcases
// Enable this test to generate the 'testcases_xx.json' files
func TestWriteExpectedValues(t *testing.T) {
t.Skip("Enable this test to create json test cases.")
for name, method := range twoOpMethods {
data, err := json.Marshal(getResult(commonParams, method))
if err != nil {
t.Fatal(err)
}
_ = ioutil.WriteFile(fmt.Sprintf("testdata/testcases_%v.json", name), data, 0644)
if err != nil {
t.Fatal(err)
}
}
}
// TestJsonTestcases runs through all the testcases defined as json-files
func TestJsonTestcases(t *testing.T) {
for name := range twoOpMethods {
data, err := ioutil.ReadFile(fmt.Sprintf("testdata/testcases_%v.json", name))
if err != nil {
t.Fatal("Failed to read file", err)
}
var testcases []TwoOperandTestcase
json.Unmarshal(data, &testcases)
testTwoOperandOp(t, testcases, twoOpMethods[name], name)
}
}
func opBenchmark(bench *testing.B, op executionFunc, args ...string) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
)
env.interpreter = evmInterpreter
// convert args
byteArgs := make([][]byte, len(args))
for i, arg := range args {
byteArgs[i] = common.Hex2Bytes(arg)
}
pc := uint64(0)
bench.ResetTimer()
for i := 0; i < bench.N; i++ {
for _, arg := range byteArgs {
a := new(uint256.Int)
a.SetBytes(arg)
stack.push(a)
}
op(&pc, evmInterpreter, &ScopeContext{nil, stack, nil})
stack.pop()
}
}
func BenchmarkOpAdd64(b *testing.B) {
x := "ffffffff"
y := "fd37f3e2bba2c4f"
opBenchmark(b, opAdd, x, y)
}
func BenchmarkOpAdd128(b *testing.B) {
x := "ffffffffffffffff"
y := "f5470b43c6549b016288e9a65629687"
opBenchmark(b, opAdd, x, y)
}
func BenchmarkOpAdd256(b *testing.B) {
x := "0802431afcbce1fc194c9eaa417b2fb67dc75a95db0bc7ec6b1c8af11df6a1da9"
y := "a1f5aac137876480252e5dcac62c354ec0d42b76b0642b6181ed099849ea1d57"
opBenchmark(b, opAdd, x, y)
}
func BenchmarkOpSub64(b *testing.B) {
x := "51022b6317003a9d"
y := "a20456c62e00753a"
opBenchmark(b, opSub, x, y)
}
func BenchmarkOpSub128(b *testing.B) {
x := "4dde30faaacdc14d00327aac314e915d"
y := "9bbc61f5559b829a0064f558629d22ba"
opBenchmark(b, opSub, x, y)
}
func BenchmarkOpSub256(b *testing.B) {
x := "4bfcd8bb2ac462735b48a17580690283980aa2d679f091c64364594df113ea37"
y := "97f9b1765588c4e6b69142eb00d20507301545acf3e1238c86c8b29be227d46e"
opBenchmark(b, opSub, x, y)
}
func BenchmarkOpMul(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opMul, x, y)
}
func BenchmarkOpDiv256(b *testing.B) {
x := "ff3f9014f20db29ae04af2c2d265de17"
y := "fe7fb0d1f59dfe9492ffbf73683fd1e870eec79504c60144cc7f5fc2bad1e611"
opBenchmark(b, opDiv, x, y)
}
func BenchmarkOpDiv128(b *testing.B) {
x := "fdedc7f10142ff97"
y := "fbdfda0e2ce356173d1993d5f70a2b11"
opBenchmark(b, opDiv, x, y)
}
func BenchmarkOpDiv64(b *testing.B) {
x := "fcb34eb3"
y := "f97180878e839129"
opBenchmark(b, opDiv, x, y)
}
func BenchmarkOpSdiv(b *testing.B) {
x := "ff3f9014f20db29ae04af2c2d265de17"
y := "fe7fb0d1f59dfe9492ffbf73683fd1e870eec79504c60144cc7f5fc2bad1e611"
opBenchmark(b, opSdiv, x, y)
}
func BenchmarkOpMod(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opMod, x, y)
}
func BenchmarkOpSmod(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opSmod, x, y)
}
func BenchmarkOpExp(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opExp, x, y)
}
func BenchmarkOpSignExtend(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opSignExtend, x, y)
}
func BenchmarkOpLt(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opLt, x, y)
}
func BenchmarkOpGt(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opGt, x, y)
}
func BenchmarkOpSlt(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opSlt, x, y)
}
func BenchmarkOpSgt(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opSgt, x, y)
}
func BenchmarkOpEq(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opEq, x, y)
}
func BenchmarkOpEq2(b *testing.B) {
x := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201ffffffff"
y := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201fffffffe"
opBenchmark(b, opEq, x, y)
}
func BenchmarkOpAnd(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opAnd, x, y)
}
func BenchmarkOpOr(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opOr, x, y)
}
func BenchmarkOpXor(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opXor, x, y)
}
func BenchmarkOpByte(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opByte, x, y)
}
func BenchmarkOpAddmod(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
z := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opAddmod, x, y, z)
}
func BenchmarkOpMulmod(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
z := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opMulmod, x, y, z)
}
func BenchmarkOpSHL(b *testing.B) {
x := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201ffffffff"
y := "ff"
opBenchmark(b, opSHL, x, y)
}
func BenchmarkOpSHR(b *testing.B) {
x := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201ffffffff"
y := "ff"
opBenchmark(b, opSHR, x, y)
}
func BenchmarkOpSAR(b *testing.B) {
x := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201ffffffff"
y := "ff"
opBenchmark(b, opSAR, x, y)
}
func BenchmarkOpIsZero(b *testing.B) {
x := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201ffffffff"
opBenchmark(b, opIszero, x)
}
func TestOpMstore(t *testing.T) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
)
env.interpreter = evmInterpreter
mem.Resize(64)
pc := uint64(0)
v := "abcdef00000000000000abba000000000deaf000000c0de00100000000133700"
stack.pushN(*new(uint256.Int).SetBytes(common.Hex2Bytes(v)), *new(uint256.Int))
opMstore(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
if got := common.Bytes2Hex(mem.GetCopy(0, 32)); got != v {
t.Fatalf("Mstore fail, got %v, expected %v", got, v)
}
stack.pushN(*new(uint256.Int).SetUint64(0x1), *new(uint256.Int))
opMstore(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
if common.Bytes2Hex(mem.GetCopy(0, 32)) != "0000000000000000000000000000000000000000000000000000000000000001" {
t.Fatalf("Mstore failed to overwrite previous value")
}
}
func BenchmarkOpMstore(bench *testing.B) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
)
env.interpreter = evmInterpreter
mem.Resize(64)
pc := uint64(0)
memStart := new(uint256.Int)
value := new(uint256.Int).SetUint64(0x1337)
bench.ResetTimer()
for i := 0; i < bench.N; i++ {
stack.pushN(*value, *memStart)
opMstore(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
}
}
func BenchmarkOpSHA3(bench *testing.B) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
)
env.interpreter = evmInterpreter
mem.Resize(32)
pc := uint64(0)
start := uint256.NewInt()
bench.ResetTimer()
for i := 0; i < bench.N; i++ {
stack.pushN(*uint256.NewInt().SetUint64(32), *start)
opSha3(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
}
}
func TestCreate2Addreses(t *testing.T) {
type testcase struct {
origin string
salt string
code string
expected string
}
for i, tt := range []testcase{
{
origin: "0x0000000000000000000000000000000000000000",
salt: "0x0000000000000000000000000000000000000000",
code: "0x00",
expected: "0x4d1a2e2bb4f88f0250f26ffff098b0b30b26bf38",
},
{
origin: "0xdeadbeef00000000000000000000000000000000",
salt: "0x0000000000000000000000000000000000000000",
code: "0x00",
expected: "0xB928f69Bb1D91Cd65274e3c79d8986362984fDA3",
},
{
origin: "0xdeadbeef00000000000000000000000000000000",
salt: "0xfeed000000000000000000000000000000000000",
code: "0x00",
expected: "0xD04116cDd17beBE565EB2422F2497E06cC1C9833",
},
{
origin: "0x0000000000000000000000000000000000000000",
salt: "0x0000000000000000000000000000000000000000",
code: "0xdeadbeef",
expected: "0x70f2b2914A2a4b783FaEFb75f459A580616Fcb5e",
},
{
origin: "0x00000000000000000000000000000000deadbeef",
salt: "0xcafebabe",
code: "0xdeadbeef",
expected: "0x60f3f640a8508fC6a86d45DF051962668E1e8AC7",
},
{
origin: "0x00000000000000000000000000000000deadbeef",
salt: "0xcafebabe",
code: "0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef",
expected: "0x1d8bfDC5D46DC4f61D6b6115972536eBE6A8854C",
},
{
origin: "0x0000000000000000000000000000000000000000",
salt: "0x0000000000000000000000000000000000000000",
code: "0x",
expected: "0xE33C0C7F7df4809055C3ebA6c09CFe4BaF1BD9e0",
},
} {
origin := common.BytesToAddress(common.FromHex(tt.origin))
salt := common.BytesToHash(common.FromHex(tt.salt))
code := common.FromHex(tt.code)
codeHash := crypto.Keccak256(code)
address := crypto.CreateAddress2(origin, salt, codeHash)
/*
stack := newstack()
// salt, but we don't need that for this test
stack.push(big.NewInt(int64(len(code)))) //size
stack.push(big.NewInt(0)) // memstart
stack.push(big.NewInt(0)) // value
gas, _ := gasCreate2(params.GasTable{}, nil, nil, stack, nil, 0)
fmt.Printf("Example %d\n* address `0x%x`\n* salt `0x%x`\n* init_code `0x%x`\n* gas (assuming no mem expansion): `%v`\n* result: `%s`\n\n", i,origin, salt, code, gas, address.String())
*/
expected := common.BytesToAddress(common.FromHex(tt.expected))
if !bytes.Equal(expected.Bytes(), address.Bytes()) {
t.Errorf("test %d: expected %s, got %s", i, expected.String(), address.String())
}
}
}