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Re: [PATCH] Fix PR37053: Move tweaks of commutative precedence to target hook
On Sat, 2009-06-27 at 16:33 +0200, Paolo Bonzini wrote:
> and then in a machine-dependent reorg pass (which rs6000 currently does
> not have):
> FOR_EACH_BB (bb)
> FOR_BB_INSNS (bb, insn)
> if (INSN_P (insn))
> for_each_rtx (&PATTERN (insn), find_mems_and_frob_them, NULL);
Originally, we tried just checking the REG_POINTER attribute when we
generated the asm for loads and stores, but there were so many passes
that didn't preserve the REG_POINTER/MEM_POINTER attribute, it just
didn't work. We have since fixed a few of them, so hopefully at reorg
time, they're still there. I'll have a go with your suggestion and get
back to you. Thanks.