[PATCH] D60294: [DAGCombiner] [CodeGenPrepare] WIP/RFC Splitting large offsets from base addresses

[Luís Marques via Phabricator via llvm-commits]

luismarques updated this revision to Diff 195013.
luismarques added a comment.

The patch now checks if doing the reassociation could break any of the load/stores that use the added constants. The value type and addressing space is now obtained from the load/stores. The failing tests have been slightly reduced by these changes:

Failing Tests (5):

  LLVM :: CodeGen/AMDGPU/salu-to-valu.ll
  LLVM :: CodeGen/SystemZ/int-add-08.ll
  LLVM :: CodeGen/SystemZ/int-sub-05.ll
  LLVM :: CodeGen/ARM/misched-fusion-aes.ll
  LLVM :: CodeGen/ARM/vector-spilling.ll


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60294/new/

https://reviews.llvm.org/D60294

Files:
  lib/CodeGen/CodeGenPrepare.cpp
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/Target/RISCV/RISCVISelLowering.h
  test/CodeGen/RISCV/split-offsets-1.ll
  test/CodeGen/RISCV/split-offsets-2.ll

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