diff options
author | Felix Lange <fjl@users.noreply.github.com> | 2017-02-28 22:09:11 +0800 |
---|---|---|
committer | Jeffrey Wilcke <jeffrey@ethereum.org> | 2017-02-28 22:09:11 +0800 |
commit | 5f7826270c9e87509fd7731ec64953a5e4761de0 (patch) | |
tree | 0d3187b115a0e10afcce1bb38ed8ba977d8bf44f /core/vm/logger.go | |
parent | d4f60d362b8fcf82db1accf89c146a2a71375841 (diff) | |
download | go-tangerine-5f7826270c9e87509fd7731ec64953a5e4761de0.tar go-tangerine-5f7826270c9e87509fd7731ec64953a5e4761de0.tar.gz go-tangerine-5f7826270c9e87509fd7731ec64953a5e4761de0.tar.bz2 go-tangerine-5f7826270c9e87509fd7731ec64953a5e4761de0.tar.lz go-tangerine-5f7826270c9e87509fd7731ec64953a5e4761de0.tar.xz go-tangerine-5f7826270c9e87509fd7731ec64953a5e4761de0.tar.zst go-tangerine-5f7826270c9e87509fd7731ec64953a5e4761de0.zip |
all: unify big.Int zero checks, use common/math in more places (#3716)
* common/math: optimize PaddedBigBytes, use it more
name old time/op new time/op delta
PaddedBigBytes-8 71.1ns ± 5% 46.1ns ± 1% -35.15% (p=0.000 n=20+19)
name old alloc/op new alloc/op delta
PaddedBigBytes-8 48.0B ± 0% 32.0B ± 0% -33.33% (p=0.000 n=20+20)
* all: unify big.Int zero checks
Various checks were in use. This commit replaces them all with Int.Sign,
which is cheaper and less code.
eg templates:
func before(x *big.Int) bool { return x.BitLen() == 0 }
func after(x *big.Int) bool { return x.Sign() == 0 }
func before(x *big.Int) bool { return x.BitLen() > 0 }
func after(x *big.Int) bool { return x.Sign() != 0 }
func before(x *big.Int) int { return x.Cmp(common.Big0) }
func after(x *big.Int) int { return x.Sign() }
* common/math, crypto/secp256k1: make ReadBits public in package math
Diffstat (limited to 'core/vm/logger.go')
-rw-r--r-- | core/vm/logger.go | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/core/vm/logger.go b/core/vm/logger.go index 3845b1073..102a215c7 100644 --- a/core/vm/logger.go +++ b/core/vm/logger.go @@ -23,6 +23,7 @@ import ( "unicode" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/common/math" ) type Storage map[common.Hash]common.Hash @@ -180,7 +181,7 @@ func StdErrFormat(logs []StructLog) { fmt.Fprintln(os.Stderr, "STACK =", len(log.Stack)) for i := len(log.Stack) - 1; i >= 0; i-- { - fmt.Fprintf(os.Stderr, "%04d: %x\n", len(log.Stack)-i-1, common.LeftPadBytes(log.Stack[i].Bytes(), 32)) + fmt.Fprintf(os.Stderr, "%04d: %x\n", len(log.Stack)-i-1, math.PaddedBigBytes(log.Stack[i], 32)) } const maxMem = 10 |