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Re: 971023 optimization bug on alpha
- To: egcs-bugs at cygnus dot com
- Subject: Re: 971023 optimization bug on alpha
- From: rth at cygnus dot com (Richard Henderson)
- Date: 27 Oct 1997 23:34:51 -0800
- Newsgroups: cygnus.egcs.bugs
- Organization: Cygnus Solutions
- References: <199710280715.XAA24411.cygnus.egcs.bugs@zoogx.zoology.washington.edu>
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~