gcc performance on SuperSparc?

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Article #42714

#42714

From: Joe Dewitte
Date: Thu, 02 Nov 1995 00:00

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I have been contemplating installing gcc on a Sparc 10 machine running 
Solaris 2.4.  In the gcc documentation, though, there is a comment that while 
gcc will work on this machine, its performance is poor because some 
information about how the SuperSparc chip does its scheduling was not 
available to incorporate into the gcc compiler for that machine.  How bad 
is this performance?  Much worse than the SparcWorks C compiler?  I'm also 
curious why this particular chip presents such a problem (I didn't see any 
similar comments about HP PA-RISC, MIPS, ...).  Is there something 
particularly unusual that Sun is doing in the SuperSparc chip?  Does this 
problem with gcc also occur for the HyperSparc chip?  Will the UltraSparc 
chip have the same problem?  I noticed that gcc was included with a Catalyst 
CD that came out a year or so ago for Solaris.  Would those binaries have 
this same poor performance or are they simply a bootstrap compiler to build 
the full version of gcc?---Joe DeWitte (dewitte@seas.gwu.edu)

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From: dewitte@seas.gwu.edu (Joe Dewitte)
Subject: gcc performance on SuperSparc?
Date: 1995/11/02
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