forked from cerc-io/plugeth
Merge pull request #21411 from holiman/fix_codelookup
core/vm: avoid map lookups for accessing jumpdest analysis
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@ -112,7 +112,13 @@ func (c *Contract) validJumpSubdest(udest uint64) bool {
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// isCode returns true if the provided PC location is an actual opcode, as
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// opposed to a data-segment following a PUSHN operation.
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func (c *Contract) isCode(udest uint64) bool {
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// Do we already have an analysis laying around?
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if c.analysis != nil {
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return c.analysis.codeSegment(udest)
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}
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// Do we have a contract hash already?
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// If we do have a hash, that means it's a 'regular' contract. For regular
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// contracts ( not temporary initcode), we store the analysis in a map
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if c.CodeHash != (common.Hash{}) {
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// Does parent context have the analysis?
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analysis, exist := c.jumpdests[c.CodeHash]
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