From 54b1de67e2cbe700a4086d33b10501578dbeaaaf Mon Sep 17 00:00:00 2001 From: Felix Lange Date: Thu, 24 Aug 2017 13:09:53 +0200 Subject: [PATCH] core/vm: make jumpdest code nicer --- core/vm/analysis.go | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/core/vm/analysis.go b/core/vm/analysis.go index 3ff8626956..08415fc1ef 100644 --- a/core/vm/analysis.go +++ b/core/vm/analysis.go @@ -42,7 +42,6 @@ func (d destinations) has(codehash common.Hash, code []byte, dest *big.Int) bool d[codehash] = m } return OpCode(code[udest]) == JUMPDEST && m.codeSegment(udest) - // return (m[udest/8] & (1 << (udest % 8))) != 0 } // bitvec is a bit vector which maps bytes in a program @@ -68,8 +67,7 @@ func jumpdests(code []byte) []byte { //The map is 4 bytes longer than necessary, in case the code // ends with a PUSH32, the algorithm will push zeroes onto the // bitvector outside the bounds of the actual code. - m := make([]byte, len(code)/8+1+4) - bits := bitvec(m) + bits := make(bitvec, len(code)/8+1+4) for pc := uint64(0); pc < uint64(len(code)); { op := OpCode(code[pc])