Chad Rosier ace9c5dfaf [arm load/store optimizer] When trying to merge a base update load/store, make ...

sure the base register and would-be writeback register don't conflict for
stores.  This was already being done for loads.

Unfortunately, it is rather difficult to create a test case for this issue.  It
was exposed in 450.soplex at LTO and requires unlucky register allocation.
<rdar://13394908>

llvm-svn: 177874

2013-03-25 16:29:20 +00:00

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