[Tcl-bugs] [ tcl-Patches-1698093 ] tighter mem handling in tebc

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Patches item #1698093, was opened at 2007-04-11 00:11
Message generated for change (Comment added) made by msofer
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Category: 46. Bytecode Compiler
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: miguel sofer (msofer)
>Assigned to: miguel sofer (msofer)
Summary: tighter mem handling in tebc

Initial Comment:
The enclosed patch causes that only the depth of the catch ranges be computed: this allows for tighter mem handling in tebc, which needs to alloc memory for each catch nesting level.

OTOH:

(1) the nesting level of loops is an interesting datum for stats and debugging, and it gets lost

(2) the mem required for each catch nesting level is just sizeof(Tcl_Obj *) - nothing. So overestimating it as now is cheap. Also, bodies with very deep nesting of loop bodies should be very rare.

This is a RFC.

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>Comment By: miguel sofer (msofer)
Date: 2007-04-11 00:13

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Forget for now - segfaults :(

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