[6637] in Athena Bugs

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vax 7.2L: gcc

daemon@ATHENA.MIT.EDU (daemon@ATHENA.MIT.EDU)
Thu Dec 20 14:07:11 1990

From: vanharen@ATHENA.MIT.EDU
To: bugs@ATHENA.MIT.EDU
Cc: testers@ATHENA.MIT.EDU
Date: Thu, 20 Dec 90 14:06:40 EST

System name:		fries
Type and version:	CVAXSTAR 7.2L (1 update(s) to same version)
Display type:		SM

What were you trying to do?
	Display the manpage for XDrawArc using xman on a vax.  (I know,
	I know, I said "gcc", hang on...)

	Start up xman.  Display the man page for XDrawArc.  Page down a
	few pages.  Watch it dump core.

	Now, recompile xman.  Use gcc, and optimize on everything except
	for ScrollByL.o.  Re-link.  Run your new xman, and display
	XDrawArc again.  Page down a few times.  Page down a few more.
	It no dump core, Jane.

What's wrong:
	Xman should not dump core.  Or, more accurately, gcc's optimizer
	should not produce code that dumps core.

What should have happened:
	gcc should optimize correctly.

Please describe any relevant documentation references:
	man gcc
	man xman
	(but don't! :-) xman XDrawArc

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