[antlr-interest] Is this Recognizer optimization valid?
parrt at jguru.com
Sun Oct 7 15:45:14 PDT 2001
On Wednesday, October 3, 2001, at 08:07 AM, Sander Mägi wrote:
> The ASTPair hack gave some 30% reduced garbage and 20% increased speed
> (on my anyway handoptimized lexer and recognizer)
My $0.02 here. The real way to optimize this is to do awy with the
ASTPair in favor of two local variables. No mem
allocation/deallocation. At the cost of some inline code (since I would
remove the surrounding object ASTPair), currentAST could be converted to
currentAST_root and currentAST_child. The resulting inlined code would
increase code size (but hopefully not that much).
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