Date: Sat, 29 Apr 2000 11:58:25 +0800 (CST)
From: Heng-Hao Chang <hchang AT rose DOT ee DOT nsysu DOT edu DOT tw>
To: pgcc AT delorie DOT com
Subject: One question about K6 optimization
Message-ID: <Pine.LNX.4.21.0004291134580.8125-100000@rose.ee.nsysu.edu.tw>
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Reply-To: pgcc AT delorie DOT com

	My machine A is

	CPU : AMD K6-2 400Mhz
	OS  : RedHat Linux 6.1
	gcc : gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/pgcc-2.95.2/specs
gcc version pgcc-2.95.2 19991024 (release)

	I build the gv package ( rpm --rebuild gv-3.5.8-9.src.rpm )
	The optflags in /usr/lib/rpm/rpmrc is
	optflags: i386 -O6 -march=k6 -fno-strength-reduce
	The " Print All " and " Print Marked " window become
	very wide.
	I change the optflags
	optflags: i386 -O6 -fno-strength-reduce
	optflags: i386 -O2 -march=k6 -fno-strength-reduce
	The " Print " window is O.K.

	My machine B is

	CPU : Intel PentiumII 333Mhz
        OS  : RedHat Linux 6.1
	gcc : gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/pgcc-2.95.2/specs
gcc version pgcc-2.95.2 19991024 (release)

	optflags: i386 -O6 -march=pentumpro -fno-strength-reduce
	The " Print " window is O.K.

	This may be a bug when use -O6 -march=k6
	The pgcc is gcc-2.95.2 with gcc-2.95.2-pgcc-2.95.3.diff