[PATCH][ARM] Fix iordi3_insn constraints

[Kyrylo Tkachov]

Hi all,

The constraint for iordi3_insn should take into account that we don't
have an orr instruction to deal with inverted immediate in ARM mode, but
we do in Thumb2 mode (orn). I had tried to reuse the De
constraint from the anddi3 case, but that's not appropriate in all
cases, causing an ICE in some cases. This patch adds a new constraint
for use by iordi3_insn to ensure that the appropriate immediates are
accepted.

Tested arm-none-eabi with and without -mthumb on qemu.

Ok for trunk?

Thanks,
Kyrill

2013-06-06  Kyrylo Tkachov  <kyrylo.tkac...@arm.com>

        * config/arm/constraints.md (Df): New constraint.
        * config/arm/arm.md (iordi3_insn): Use Df constraint instead of
De.
        Correct length attribute for last two alternatives.

fix_iordi.patch
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