Re: Sun compilers: acc vs. gcc?

J.C.Highfield@loughborough.ac.uk
Thu, 6 Oct 1994 09:54:36 GMT

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Sun compilers: acc vs. gcc? cooper@holly.imsi.com (1994-10-01)
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Re: Sun compilers: acc vs. gcc? J.C.Highfield@loughborough.ac.uk (1994-10-06)
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Newsgroups: comp.compilers
From: J.C.Highfield@loughborough.ac.uk
Originator: cojch@hpd.lut.ac.uk
Keywords: sparc, C
Organization: Loughborough University, UK.
References: 94-10-009
Date: Thu, 6 Oct 1994 09:54:36 GMT

cooper@imsi.com writes:
>Can anyone offer a comparison of Gcc vs. Acc, sun's ansi compiler? I'd
>like to know if there is any reason to buy Acc, if I'm happy with Gcc.


I tried these when compiling my transputer emulator, (a simple instruction
interpreting one). I played around with the optimisation options quite
a bit but never got acc to perform significantly better than gcc.
[acc reports "SC1.0 1Mar1991" and gcc was probably 2.4.5 then]


Neither seemed to do at all well at inlining my big switch statement
procedure into my main loop - turning on inlining gained a couple of
percent, even with adding several "inline" keywords. Hand inlining two
procedures gained me 10% over that.


Hopefully both compilers have improved.


Julian
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