VAX-C much slower than GNU-C

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Article #50464

#50464

From: Morris Goldstein (x332)
Date: Thu, 23 Sep 1993 12:20

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We have a VMS application compiled with the GNU C compiler and the VAX C
compiler.  On the same machine, the VAX C produced application is
significantly slower than the GNU C version.

Any ideas of where to look and things to try?  Are the optimizations
performed by the VAX C compiler and the GNU C compiler that different?

Responses via e-mail appreciated:

Morris Goldstein (goldstein@cgi.com)

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From: goldstei@cgi.com (Morris Goldstein (x332))
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Subject: VAX-C much slower than GNU-C
Date: 23 Sep 1993 07:20:02 -0500
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