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From: ron@holodeck.lerc.nasa.gov (Ron Gaug)
Newsgroups: comp.sys.sgi,comp.sys.mips
Subject: Harmless Compiler Bug
Summary: harmless compiler bugs are the best kind of compiler bugs :-)
Keywords: f77 bug
Message-ID: <1990Oct9.180308.27073@eagle.lerc.nasa.gov>
Date: 9 Oct 90 18:03:08 GMT
Organization: NASA Lewis Research Center, Cleveland, OH
Lines: 26

The following fortran subprogram: 

      SUBROUTINE USELESS (STRING)
      CHARACTER*(*) STRING
C-----------------------vvvvvvvvvvv
      CALL BART (STRING, LEN(STRING))
C-----------------------^^^^^^^^^^^
      RETURN
      END

elicits the following message:

uopt: Warning: harmless compiler bug detected (LDA length 0); please report to MIPS

when compiled with optimization levels 2 (and above).
O/S:	IRIX 3.3.1
Compiler: f77 -V shows "Mips Computer Systems 2.0"

But Hey, Don't have a cow man!  It's Harmless!

P.S.: Consider yourselves informed!
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Ron Gaug			| As far as we know,
ron@sarah.lerc.nasa.gov		| our computer has never had an
(216)433-8163			| undetected error. -- Weisert
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