This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
Re: i386-linux cross sh-elf breakage
- To: Clinton Popetz <cpopetz at cygnus dot com>
- Subject: Re: i386-linux cross sh-elf breakage
- From: Richard Henderson <rth at cygnus dot com>
- Date: Tue, 16 May 2000 17:58:51 -0700
- Cc: Toshiyasu Morita <tm at netcom dot com>, gcc-bugs at gcc dot gnu dot org
- References: <200005152231.PAA01084@netcom.com> <20000516140146.A17877@cpopetz.com>
On Tue, May 16, 2000 at 02:01:46PM -0500, Clinton Popetz wrote:
> But optimize_mode_switching is adding a (use) in the exit block.
What sort of use? A naked (insn x x x (use foo)) or something
buried in another pattern. The former would strike me as wrong.
> Richard, should recompute_reg_usage use UPDATE_LIFE_GLOBAL, or should we
> call update_life_info after optimize_mode_switching?
That said, optimize_mode_switching may very well need to redo
global life info anyway. We may want to tweek when no_new_pseudos
gets set in that case too, so that we don't overwork wrt
recompute_reg_usage.
r~