Matt Arsenault 8fac501602 Fix nondeterministic output in local stack slot alloc pass ...

This finds all of the references to a frame index in a function, and
sorts by the offset. If multiple instructions use the same offset,
nothing was breaking the tie for sorting.

This avoids the test failures the reverted r282999 introduced.

llvm-svn: 285201

2016-10-26 14:53:50 +00:00

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