971023 optimization bug on alpha

[Richard Henderson]

a sun <asun@zoology.washington.edu> wrote:
>  gcc -D__KERNEL__ -O -I/usr/src/linux/include -Wall -Wstrict-prototypes
>  -pipe -mno-fp-regs -ffixed-8 -DMODULE -DMODVERSIONS -include
>  /usr/src/linux/include/linux/modversions.h -DEXPORT_SYMTAB -c slhc.c

Fixed.  See http://www.cygnus.com/ml/egcs/1997-Oct/1115.html .

The kernel actually runs well with EGCS -- and it shows up on lmbench!
I got a 25% speed increase on lat_syscall (down to 600ns); less on others,
worse on a few, but on the whole a remarkable improvement.


r~