-O4 in SunOS compiler

Jon Allen Boone <jb3o+@andrew.cmu.edu>
Wed, 26 Aug 1992 20:52:28 GMT

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-O4 in SunOS compiler jb3o+@andrew.cmu.edu (Jon Allen Boone) (1992-08-26)
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Newsgroups: comp.compilers
From: Jon Allen Boone <jb3o+@andrew.cmu.edu>
Organization: Compilers Central
Date: Wed, 26 Aug 1992 20:52:28 GMT
Keywords: sparc, optimize, question, C

What does the -O4 switch do to the SunOS compiler? Here's an excerpt
from the man page:


                                        4 Same as -O3, but trace the effects of
                                                  pointer assignments.


Ok....what does it mean to trace the effects of pointer assignements?


-=> iain <=-


PS> What is a good reference for building compilers that includes
optimizations?
--

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