Article View: comp.sys.acorn.tech
Article #120Re: New Language/Compiler (ideas wanted)
From: TMOTA
Date: Thu, 13 Aug 1992 20:55
Date: Thu, 13 Aug 1992 20:55
21 lines
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1587 bytes
torbenm@diku.dk (Torben AEgidius Mogensen) writes: >Afeature I have sorely missed in compilers for C etc. is a cheap >tail-call: if the last thing you do in a procedure or function is to >call a procedure or function, this can be implemented as a goto rather >than a general procedure/function call. Also, the local variables of What do you mean? What if the tail-called function then tries to call another function or (even worse) recurses? This could only work if the tail-called function expected to recieve *exactly* the stack frame that the tail-caller has had set up when it was called. And remember that Acorn's C compiler (the ARM proc. call std.?) is clever enough to notice when you call a function that does not call another (a leaf function), and does not bother with most of the context-storing operations involved in normal function calls. -- _________________ "I'd like to answer this question in two ways: /____ _ _/_ __ First in my normal voice, and then // / //_//_ /_/ in a silly, high-pitched whine." (Monty Python)
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Path: arc1-ca.pugleaf.net!sparky!uunet!comp.vuw.ac.nz!waikato.ac.nz!aukuni.ac.nz!cs18.cs.aukuni.ac.nz!jwil1 Newsgroups: comp.sys.acorn.tech Subject: Re: New Language/Compiler (ideas wanted) Message-ID: <1992Aug13.205528.15434@cs.aukuni.ac.nz> From: jwil1@cs.aukuni.ac.nz (TMOTA) Date: Thu, 13 Aug 1992 20:55:28 GMT Sender: jwil1@cs.aukuni.ac.nz (TMOTA) References: <1195@grun.is> <1992Aug13.130618.18871@odin.diku.dk> Organization: Computer Science Dept. University of Auckland Keywords: Compiler/Language Lines: 21