[PATCH] D12698: DAGCombiner: Replace store of FP constant after attemping store merges

[Matt Arsenault via llvm-commits]

arsenm created this revision.
arsenm added a subscriber: llvm-commits.

If storing multiple FP constants, some subset of the stores
would be replaced with integers due to visit order, so
MergeConsecutiveStores would only partially merge these.

Alternatively, it possibly would be better to do this after LegalTypes

http://reviews.llvm.org/D12698

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AMDGPU/merge-stores.ll

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