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Re: New gcc port (ATMEL AVR) and question
Hello !
> Denis Chertykov writes:
> > But in some cases (in difficult tests - `fp-bit.c') compiler produce
> > the pattern (inside the movM insn) like:
> > (mem:ANY-MODE (plus:HI (reg:HI 26 r26)
> > (const_int some-number-lower-then-63))
> > I'm confused. May be something wrong ?
> > IMHO: reload do this, but why ?
>
> Have you always noticed this behaviour?
This depends from optimization level (-O3 produce wrong pattern more
frequently than -Os).
REG_ALLOC_ORDER and ORDER_REGS_FOR_LOCAL_ALLOC also influence to this.
> Which version of egcs are you patching against?
I'm patching egcs-1.1.1
Denis.