(push_reload, find_reloads): Reload inside a paradoxical SUBREG of MEM
except don't force a reload unless the inner mode is narrower than
BIGGEST_ALIGNMENT.
From-SVN: r6302
(form_sum): Change the way that form_sum canonicalizes
addresses, so that it never creates (PLUS (PLUS MEM CONST_INT) REG)
but instead canonicallizes this to (PLUS (PLUS REG CONST_INT) MEM).
From-SVN: r5506
* reload.c: (immune_p): Constants never overlap hard frame pointer references.
(find_reloads_address): Compute invalid references to the hard
frame pointer in a register; also (reg + const)
and (reg + reg + const).
From-SVN: r5462
(combine_reloads): Use it.
(find_reloads): Set reload_earlyclobbers earlier.
(refers_to_regno_for_reload_p): Count something being stored into if it is
an earlyclobber operand.
From-SVN: r5352
(push_reload, find_reloads): Treat (subreg (pseudo)) and (subreg (mem))
the same.
If we have (subreg:M1 (mem:M2 ...) ...), never do anything special if M1
and M2 are the same size.
From-SVN: r5097
(push_reload): When IN is a subreg of a multiword reg
that uses a funny number of registers, and SUBREG_WORD is nonzero,
and IN must match an output, reload both the reg and the subreg.
From-SVN: r4556
(struct decompose): Move to before function declarations.
(secondary_memlocs_elim): One per operand, not per mode.
(get_secondary_mem): Accept and use reload description (opnum and type).
(push_reload): Accept and use new reload description instead of old NEEDED_FOR.
Define two new macros: MERGEABLE_RELOADS and MERGE_TO_OTHER.
Use these macros to see if reloads can be merged and how to do it.
(transfer_replacements): New function.
(combine_reloads): Refine when we can combine reloads.
(find_reloads): Use new method of tracking what a reload is for.
When we make a CLOBBER insn, do so with DImode.
Merge cases of making optional reloads, avoid making output-only optional
reloads, refine when we may not make in-out optional reloads, and make an
optional reload for a pair of matching operands.
(find_reloads_toplev, find_reloads_address{,_1, part}): Accept and use reload
description.
(forget_volatility): Delete long-obsolete function.
From-SVN: r3911
* reload.c (find_reloads_toplev): When handling a (subreg (reg))
where (reg) will be replaced by a memory reference, if the memory
address is invalid for the mode of the subreg, then search the
memory address for reloads.
From-SVN: r3385
make multiple register operands equivalent if the last register of
the groups are the same.
(subst_reloads): Use gen_lowpart_common to change mode of
reloadreg.
From-SVN: r3030
(push_reload): Move the NO_REGS abort after the
error check for asms, to avoid crashing for asms.
Fix inmode and outmode too, if they are VOID for an asm.
From-SVN: r2989
