Merge r314890 r314891 into the 5.0 branch : [AVR] Fix displacement overflow for LDDW/STDW

[dylanmckay]

Bugzilla Link	34829
Resolution	FIXED
Resolved on	Oct 16, 2017 14:36
Version	5.0
OS	All
Blocks	#33840
CC	@tstellar
Fixed by commit(s)	r314890 r314891

Extended Description

Is it OK to merge the following revision(s) to the 5.0 branch?

[dylanmckay]

assigned to @dylanmckay

[dylanmckay]

https://reviews.llvm.org/rL314890

[dylanmckay]

https://reviews.llvm.org/rL314891

[dylanmckay]

https://reviews.llvm.org/rL314896

[dylanmckay]

https://reviews.llvm.org/rL314897

[dylanmckay]

https://reviews.llvm.org/rL314898

[tstellar]

These are all OK, go ahead and merge.

[dylanmckay]

Have merged all of these