[PATCH] D56387: [DAGCombiner] Enable SimplifyDemandedBits vector support for TRUNCATE (WIP)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 181284.
RKSimon added a comment.

rebase after D56421 <https://reviews.llvm.org/D56421>


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56387/new/

https://reviews.llvm.org/D56387

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AMDGPU/idot4.ll
  test/CodeGen/AMDGPU/idot8.ll
  test/CodeGen/AMDGPU/widen-smrd-loads.ll
  test/CodeGen/ARM/lowerMUL-newload.ll
  test/CodeGen/X86/avx512-any_extend_load.ll
  test/CodeGen/X86/combine-sra.ll
  test/CodeGen/X86/known-signbits-vector.ll
  test/CodeGen/X86/vector-trunc-widen.ll
  test/CodeGen/X86/vector-trunc.ll

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