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Merge pull request #1638 from obscuren/jit-fixes

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core/vm: fixed jit error & added inline docs
This commit is contained in:
Jeffrey Wilcke 2015-08-13 11:49:01 -07:00
commit 73c4e6005c
12 changed files with 34 additions and 41 deletions
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2
cmd/evm/main.go
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@ -102,7 +102,7 @@ func init() {
func run(ctx *cli.Context) {
vm.Debug = ctx.GlobalBool(DebugFlag.Name)
vm.ForceJit = ctx.GlobalBool(ForceJitFlag.Name)
vm.DisableJit = ctx.GlobalBool(DisableJitFlag.Name)
vm.EnableJit = !ctx.GlobalBool(DisableJitFlag.Name)
glog.SetToStderr(true)

2
cmd/utils/flags.go
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@ -452,7 +452,7 @@ func SetupLogger(ctx *cli.Context) {
// SetupVM configured the VM package's global settings
func SetupVM(ctx *cli.Context) {
vm.DisableJit = !ctx.GlobalBool(VMEnableJitFlag.Name)
vm.EnableJit = ctx.GlobalBool(VMEnableJitFlag.Name)
vm.ForceJit = ctx.GlobalBool(VMForceJitFlag.Name)
vm.SetJITCacheSize(ctx.GlobalInt(VMJitCacheFlag.Name))
}

12
core/block_processor.go
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@ -354,18 +354,8 @@ func (sm *BlockProcessor) GetLogs(block *types.Block) (logs state.Logs, err erro
for _, receipt := range receipts {
logs = append(logs, receipt.Logs()...)
}
return
}
// TODO: remove backward compatibility
var (
parent = sm.bc.GetBlock(block.ParentHash())
state = state.New(parent.Root(), sm.chainDb)
)
sm.TransitionState(state, parent, block, true)
return state.Logs(), nil
return logs, nil
}
// See YP section 4.3.4. "Block Header Validity"

19
core/vm/instructions.go
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@ -341,19 +341,19 @@ func opCoinbase(instr instruction, env Environment, context *Context, memory *Me
}
func opTimestamp(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
stack.push(new(big.Int).SetUint64(env.Time()))
stack.push(U256(new(big.Int).SetUint64(env.Time())))
}
func opNumber(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
stack.push(U256(env.BlockNumber()))
stack.push(U256(new(big.Int).Set(env.BlockNumber())))
}
func opDifficulty(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
stack.push(new(big.Int).Set(env.Difficulty()))
stack.push(U256(new(big.Int).Set(env.Difficulty())))
}
func opGasLimit(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
stack.push(new(big.Int).Set(env.GasLimit()))
stack.push(U256(new(big.Int).Set(env.GasLimit())))
}
func opPop(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
@ -415,15 +415,12 @@ func opSstore(instr instruction, env Environment, context *Context, memory *Memo
env.State().SetState(context.Address(), loc, common.BigToHash(val))
}
func opJump(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
}
func opJumpi(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
}
func opJumpdest(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
}
func opJump(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {}
func opJumpi(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {}
func opJumpdest(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {}
func opPc(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {
stack.push(instr.data)
stack.push(new(big.Int).Set(instr.data))
}
func opMsize(instr instruction, env Environment, context *Context, memory *Memory, stack *stack) {

6
core/vm/jit.go
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@ -83,6 +83,7 @@ type Program struct {
code []byte
}
// NewProgram returns a new JIT program
func NewProgram(code []byte) *Program {
program := &Program{
Id: crypto.Sha3Hash(code),
@ -113,6 +114,7 @@ func (p *Program) addInstr(op OpCode, pc uint64, fn instrFn, data *big.Int) {
p.mapping[pc] = len(p.instructions) - 1
}
// CompileProgram compiles the given program and return an error when it fails
func CompileProgram(program *Program) (err error) {
if progStatus(atomic.LoadInt32(&program.status)) == progCompile {
return nil
@ -272,6 +274,8 @@ func CompileProgram(program *Program) (err error) {
return nil
}
// RunProgram runs the program given the enviroment and context and returns an
// error if the execution failed (non-consensus)
func RunProgram(program *Program, env Environment, context *Context, input []byte) ([]byte, error) {
return runProgram(program, 0, NewMemory(), newstack(), env, context, input)
}
@ -352,6 +356,8 @@ func runProgram(program *Program, pcstart uint64, mem *Memory, stack *stack, env
pc++
}
context.Input = nil
return context.Return(nil), nil
}

2
core/vm/jit_test.go
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@ -46,7 +46,7 @@ func runVmBench(test vmBench, b *testing.B) {
}
env := NewEnv()
DisableJit = test.nojit
EnableJit = !test.nojit
ForceJit = test.forcejit
b.ResetTimer()

6
core/vm/settings.go
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@ -17,9 +17,9 @@
package vm
var (
DisableJit bool = true // Disable the JIT VM
ForceJit bool // Force the JIT, skip byte VM
MaxProgSize int // Max cache size for JIT Programs
EnableJit bool // Enables the JIT VM
ForceJit bool // Force the JIT, skip byte VM
MaxProgSize int // Max cache size for JIT Programs
)
const defaultJitMaxCache int = 64

2
core/vm/vm.go
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@ -64,7 +64,7 @@ func (self *Vm) Run(context *Context, input []byte) (ret []byte, err error) {
codehash = crypto.Sha3Hash(context.Code) // codehash is used when doing jump dest caching
program *Program
)
if !DisableJit {
if EnableJit {
// Fetch program status.
// * If ready run using JIT
// * If unknown, compile in a seperate goroutine

5
tests/state_test.go
View File

@ -27,14 +27,13 @@ import (
func init() {
if os.Getenv("JITVM") == "true" {
vm.ForceJit = true
} else {
vm.DisableJit = true
vm.EnableJit = true
}
}
func BenchmarkStateCall1024(b *testing.B) {
fn := filepath.Join(stateTestDir, "stCallCreateCallCodeTest.json")
if err := BenchVmTest(fn, bconf{"Call1024BalanceTooLow", true, false}, b); err != nil {
if err := BenchVmTest(fn, bconf{"Call1024BalanceTooLow", true, os.Getenv("JITVM") == "true"}, b); err != nil {
b.Error(err)
}
}

6
tests/state_test_util.go
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@ -71,8 +71,8 @@ func BenchStateTest(p string, conf bconf, b *testing.B) error {
return fmt.Errorf("test not found: %s", conf.name)
}
pNoJit := vm.DisableJit
vm.DisableJit = conf.nojit
pJit := vm.EnableJit
vm.EnableJit = conf.jit
pForceJit := vm.ForceJit
vm.ForceJit = conf.precomp
@ -94,7 +94,7 @@ func BenchStateTest(p string, conf bconf, b *testing.B) error {
benchStateTest(test, env, b)
}
vm.DisableJit = pNoJit
vm.EnableJit = pJit
vm.ForceJit = pForceJit
return nil

5
tests/vm_test.go
View File

@ -17,20 +17,21 @@
package tests
import (
"os"
"path/filepath"
"testing"
)
func BenchmarkVmAckermann32Tests(b *testing.B) {
fn := filepath.Join(vmTestDir, "vmPerformanceTest.json")
if err := BenchVmTest(fn, bconf{"ackermann32", true, false}, b); err != nil {
if err := BenchVmTest(fn, bconf{"ackermann32", true, os.Getenv("JITVM") == "true"}, b); err != nil {
b.Error(err)
}
}
func BenchmarkVmFibonacci16Tests(b *testing.B) {
fn := filepath.Join(vmTestDir, "vmPerformanceTest.json")
if err := BenchVmTest(fn, bconf{"fibonacci16", true, false}, b); err != nil {
if err := BenchVmTest(fn, bconf{"fibonacci16", true, os.Getenv("JITVM") == "true"}, b); err != nil {
b.Error(err)
}
}

8
tests/vm_test_util.go
View File

@ -52,7 +52,7 @@ func RunVmTestWithReader(r io.Reader, skipTests []string) error {
type bconf struct {
name string
precomp bool
nojit bool
jit bool
}
func BenchVmTest(p string, conf bconf, b *testing.B) error {
@ -67,8 +67,8 @@ func BenchVmTest(p string, conf bconf, b *testing.B) error {
return fmt.Errorf("test not found: %s", conf.name)
}
pNoJit := vm.DisableJit
vm.DisableJit = conf.nojit
pJit := vm.EnableJit
vm.EnableJit = conf.jit
pForceJit := vm.ForceJit
vm.ForceJit = conf.precomp
@ -99,7 +99,7 @@ func BenchVmTest(p string, conf bconf, b *testing.B) error {
benchVmTest(test, env, b)
}
vm.DisableJit = pNoJit
vm.EnableJit = pJit
vm.ForceJit = pForceJit
return nil