[release/1.4.18] core, core/vm: added gas price variance table

This implements 1b & 1c of EIP150 by adding a new GasTable which must be
returned from the RuleSet config method. This table is used to determine
the gas prices for the current epoch.

Please note that when the CreateBySuicide gas price is set it is assumed
that we're in the new epoch phase.

In addition this PR will serve as temporary basis while refactorisation
in being done in the EVM64 PR, which will substentially overhaul the gas
price code.

(cherry picked from commit 64af2aafda)

tests/state_test.go

@@ -440,3 +440,238 @@ func TestHomesteadBounds(t *testing.T) {
 		t.Error(err)
 	}
 }
+
+// EIP150 tests
+func TestEIP150Specific(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "stEIPSpecificTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150SingleCodeGasPrice(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "stEIPSingleCodeGasPrices.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150MemExpandingCalls(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "stMemExpandingEIPCalls.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadStateSystemOperations(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stSystemOperationsTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadStatePreCompiledContracts(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stPreCompiledContracts.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadStateRecursiveCreate(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stSpecialTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadStateRefund(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stRefundTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadStateInitCode(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stInitCodeTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadStateLog(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stLogTests.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadStateTransaction(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stTransactionTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadCallCreateCallCode(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stCallCreateCallCodeTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadCallCodes(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stCallCodes.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadMemory(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stMemoryTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadMemoryStress(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	if os.Getenv("TEST_VM_COMPLEX") == "" {
+		t.Skip()
+	}
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stMemoryStressTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadQuadraticComplexity(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	if os.Getenv("TEST_VM_COMPLEX") == "" {
+		t.Skip()
+	}
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stQuadraticComplexityTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadWallet(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stWalletTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadDelegateCodes(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stCallDelegateCodes.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadDelegateCodesCallCode(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stCallDelegateCodesCallCode.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}
+
+func TestEIP150HomesteadBounds(t *testing.T) {
+	ruleSet := RuleSet{
+		HomesteadBlock:           new(big.Int),
+		HomesteadGasRepriceBlock: big.NewInt(2457000),
+	}
+
+	fn := filepath.Join(stateTestDir, "EIP150", "Homestead", "stBoundsTest.json")
+	if err := RunStateTest(ruleSet, fn, StateSkipTests); err != nil {
+		t.Error(err)
+	}
+}