1 files changed, 0 insertions, 106 deletions
diff --git a/core/vm/intpool.go b/core/vm/intpool.go
deleted file mode 100644
index 917a78d..0000000
--- a/core/vm/intpool.go
+++ /dev/null
@@ -1,106 +0,0 @@
-// 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 (
-	"math/big"
-	"sync"
-)
-
-var checkVal = big.NewInt(-42)
-
-const poolLimit = 256
-
-// intPool is a pool of big integers that
-// can be reused for all big.Int operations.
-type intPool struct {
-	pool *Stack
-}
-
-func newIntPool() *intPool {
-	return &intPool{pool: newstack()}
-}
-
-// get retrieves a big int from the pool, allocating one if the pool is empty.
-// Note, the returned int's value is arbitrary and will not be zeroed!
-func (p *intPool) get() *big.Int {
-	if p.pool.len() > 0 {
-		return p.pool.pop()
-	}
-	return new(big.Int)
-}
-
-// getZero retrieves a big int from the pool, setting it to zero or allocating
-// a new one if the pool is empty.
-func (p *intPool) getZero() *big.Int {
-	if p.pool.len() > 0 {
-		return p.pool.pop().SetUint64(0)
-	}
-	return new(big.Int)
-}
-
-// put returns an allocated big int to the pool to be later reused by get calls.
-// Note, the values as saved as is; neither put nor get zeroes the ints out!
-func (p *intPool) put(is ...*big.Int) {
-	if len(p.pool.data) > poolLimit {
-		return
-	}
-	for _, i := range is {
-		// verifyPool is a build flag. Pool verification makes sure the integrity
-		// of the integer pool by comparing values to a default value.
-		if verifyPool {
-			i.Set(checkVal)
-		}
-		p.pool.push(i)
-	}
-}
-
-// The intPool pool's default capacity
-const poolDefaultCap = 25
-
-// intPoolPool manages a pool of intPools.
-type intPoolPool struct {
-	pools []*intPool
-	lock  sync.Mutex
-}
-
-var poolOfIntPools = &intPoolPool{
-	pools: make([]*intPool, 0, poolDefaultCap),
-}
-
-// get is looking for an available pool to return.
-func (ipp *intPoolPool) get() *intPool {
-	ipp.lock.Lock()
-	defer ipp.lock.Unlock()
-
-	if len(poolOfIntPools.pools) > 0 {
-		ip := ipp.pools[len(ipp.pools)-1]
-		ipp.pools = ipp.pools[:len(ipp.pools)-1]
-		return ip
-	}
-	return newIntPool()
-}
-
-// put a pool that has been allocated with get.
-func (ipp *intPoolPool) put(ip *intPool) {
-	ipp.lock.Lock()
-	defer ipp.lock.Unlock()
-
-	if len(ipp.pools) < cap(ipp.pools) {
-		ipp.pools = append(ipp.pools, ip)
-	}
-}