http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55686
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |steven at gcc dot gnu.org
--- Comment #7 from Steven Bosscher <steven at gcc dot gnu.org> 2012-12-17
15:41:04 UTC ---
(In reply to comment #6)
> The problem here are the local register asm vars, we have tests like
> !fixed_regs[DI_REG] all around the stos/etc. code, but that catches just
> global register asm vars, not local ones. Perhaps we should gather during
> expansion time or so what local register asm vars are being used in the
> current function, and use that along with the global vars tests.
There is already cfun->has_local_explicit_reg_vars, it could be changed
into a HARD_REG_SET to track which registers that'd be.
