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core/vm: polish precompile contract code, add tests and benches

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* Update modexp gas calculation to new version
 * Fix modexp modulo 0 special case to return zero
This commit is contained in:
Péter Szilágyi
2017-08-10 16:39:43 +03:00
parent 7bbdf3e268
commit 6131dd55c5
5 changed files with 409 additions and 242 deletions
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86
core/vm/instructions_test.go
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@@ -69,7 +69,7 @@ func precompiledBenchmark(addr, input, expected string, gas uint64, bench *testi
contract := NewContract(AccountRef(common.HexToAddress("1337")),
nil, new(big.Int), gas)
p := PrecompiledContracts[common.HexToAddress(addr)]
p := PrecompiledContractsMetropolis[common.HexToAddress(addr)]
in := common.Hex2Bytes(input)
var (
res []byte
@@ -94,7 +94,7 @@ func precompiledBenchmark(addr, input, expected string, gas uint64, bench *testi
}
}
func BenchmarkPrecompiledEcdsa(bench *testing.B) {
func BenchmarkPrecompiledECDSA(bench *testing.B) {
var (
addr = "01"
inp = "38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e000000000000000000000000000000000000000000000000000000000000001b38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e789d1dd423d25f0772d2748d60f7e4b81bb14d086eba8e8e8efb6dcff8a4ae02"
@@ -103,6 +103,7 @@ func BenchmarkPrecompiledEcdsa(bench *testing.B) {
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkPrecompiledSha256(bench *testing.B) {
var (
addr = "02"
@@ -112,6 +113,7 @@ func BenchmarkPrecompiledSha256(bench *testing.B) {
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkPrecompiledRipeMD(bench *testing.B) {
var (
addr = "03"
@@ -121,6 +123,7 @@ func BenchmarkPrecompiledRipeMD(bench *testing.B) {
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkPrecompiledIdentity(bench *testing.B) {
var (
addr = "04"
@@ -130,131 +133,171 @@ func BenchmarkPrecompiledIdentity(bench *testing.B) {
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkPrecompiledModExp(bench *testing.B) {
var (
addr = "05"
inp = "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002003fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2efffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f"
exp = "0000000000000000000000000000000000000000000000000000000000000001"
gas = uint64(4000000)
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkPrecompiledBn256Add(bench *testing.B) {
var (
addr = "06"
inp = "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
exp = "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
gas = uint64(4000000)
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkPrecompiledBn256ScalarMul(bench *testing.B) {
var (
addr = "07"
inp = "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
exp = "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
gas = uint64(4000000)
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkPrecompiledBn256Pairing(bench *testing.B) {
var (
addr = "08"
inp = "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"
exp = "0000000000000000000000000000000000000000000000000000000000000001"
gas = uint64(4000000)
)
precompiledBenchmark(addr, inp, exp, gas, bench)
}
func BenchmarkOpAdd(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opAdd, x, y)
}
func BenchmarkOpSub(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opSub, x, y)
}
func BenchmarkOpMul(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opMul, x, y)
}
func BenchmarkOpDiv(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
opBenchmark(b, opDiv, x, y)
}
func BenchmarkOpSdiv(b *testing.B) {
x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
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 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) {
@@ -263,15 +306,14 @@ func BenchmarkOpAddmod(b *testing.B) {
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 BenchmarkOpSha3(b *testing.B) {