Peter Collingbourne 78f1ecc59c ARM: When spilling extra registers for alignment, prefer low registers on all Thumb targets. ...

This makes it more likely that we can use the 16-bit push and pop instructions
on Thumb-2, saving around 4 bytes per function.

Differential Revision: http://reviews.llvm.org/D9165

llvm-svn: 235637

2015-04-23 20:31:26 +00:00

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