[patch,avr] Fix ICE PR61443

[Georg-Johann Lay]

This is a fix for unrecognizable insn ICE where the push expander generated 
(subreg(mem)) for non-generic address-space locations.

Instead of loading byte-wise and legitimizing such expressions, it's easier and 
results in better code when we load such MEMs in one chunk.

Ok to apply?

Johann


gcc/
	PR target/61443
	* config/avr/avr.md (push<mode>1): Avoid (subreg(mem)) when
	loading from address spaces.
gcc/testsuite/
	PR target/61443
	* gcc.target/avr/torture/pr61443.c: New test.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: pr61443.diff
Type: text/x-patch
Size: 3266 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20140611/f91a6b03/attachment.bin>