[antlr-interest] ANTLR v3.3 infinite loop
Terence Parr
parrt at cs.usfca.edu
Wed Dec 1 08:02:59 PST 2010
hi. please turn on -Xwatchdfaconversion and see which decision kills it. this is rare but not impossible. Then, add backtrack=true and k=1 options to that decision to resolve. or restructure that decision.
Please report back on success.
Ter
On Dec 1, 2010, at 5:16 AM, Rene Vestergaard wrote:
> Fellow ANTLRs,
>
> My biggest .g file (~850 lines) appears to send 3.3 into an infinite
> loop (>10mins) that keeps allocating heap space (>3GBs).
>
> On 3.2, the same task takes a few seconds and around 100MB.
>
> Any advice on how to pinpoint the problem?
>
> Cheers,
> Rene
>
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