From owner-FreeBSD-users-jp@jp.freebsd.org  Tue Mar 24 07:40:13 1998
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Subject: [FreeBSD-users-jp 26327] gcc-2.8.1 performance
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> $B$=$3$G(B cc version 2.8.1 $B$G(B kernel $B$r(B make $B$9$k$H!"(B

$B3'$5$s!"(Bgcc-2.8.1$B$K0\9T$7$F$$$k$h$&$G!D(B
$B0l1~!"(Bgcc-2.8.1$B$N$@$9(Bcode$B$N(Bperformance$B$rD4$Y$F$_$?$N$G!"=q$$$H(B
$B$-$^$9!#(B

gcc-2.8.1(libgcc$B4^$^$:(B) $B$r:n$k$H$-$N;~4V(B on P6

compile option

-O6 -mno-move -pipe -mpentiumpro -fomit-frame-pointer
-malign-double -malign-functions=4
-malign-loops=4  -malign-jumps=4  -fexpensive-optimizations
-fcse-follow-jumps -fcse-skip-blocks -fpeephole
-fshared-data -frerun-cse-after-loop -fno-builtin -pipe

2.7.2.1$B$G:n$C$?(Bbinary
  6m30s
2.8.1$B$G$D$/$C$?(Bbinary
  6m37s

#make -j$B$O;H$C$F$J$$(B
#egcs$B$h$j$^$7(B

