[PATCH] D58521: [DAGCombiner] allow truncation of binops after legalization if desirable

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 333935.
spatel added a comment.

Rebased (regenerated test diffs).


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58521/new/

https://reviews.llvm.org/D58521

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AArch64/fp16-v4-instructions.ll
  llvm/test/CodeGen/AArch64/srem-seteq-illegal-types.ll
  llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-idiv.ll
  llvm/test/CodeGen/AMDGPU/cgp-bitfield-extract.ll
  llvm/test/CodeGen/AMDGPU/idot8s.ll
  llvm/test/CodeGen/AMDGPU/idot8u.ll
  llvm/test/CodeGen/AMDGPU/widen-smrd-loads.ll
  llvm/test/CodeGen/SystemZ/scalar-ctlz.ll
  llvm/test/CodeGen/X86/and-encoding.ll
  llvm/test/CodeGen/X86/avx512-calling-conv.ll
  llvm/test/CodeGen/X86/avx512-mask-op.ll
  llvm/test/CodeGen/X86/bool-math.ll
  llvm/test/CodeGen/X86/clz.ll
  llvm/test/CodeGen/X86/fast-isel-cmp.ll
  llvm/test/CodeGen/X86/fptosi-sat-scalar.ll
  llvm/test/CodeGen/X86/fptoui-sat-scalar.ll
  llvm/test/CodeGen/X86/funnel-shift.ll
  llvm/test/CodeGen/X86/load-local-v4i5.ll
  llvm/test/CodeGen/X86/lzcnt.ll
  llvm/test/CodeGen/X86/masked_store_trunc.ll
  llvm/test/CodeGen/X86/masked_store_trunc_ssat.ll
  llvm/test/CodeGen/X86/masked_store_trunc_usat.ll
  llvm/test/CodeGen/X86/movmsk-cmp.ll
  llvm/test/CodeGen/X86/mul-constant-i8.ll
  llvm/test/CodeGen/X86/parity.ll
  llvm/test/CodeGen/X86/pr15267.ll
  llvm/test/CodeGen/X86/pr40539.ll
  llvm/test/CodeGen/X86/replace-load-and-with-bzhi.ll
  llvm/test/CodeGen/X86/setoeq.ll
  llvm/test/CodeGen/X86/vector-compare-all_of.ll
  llvm/test/CodeGen/X86/vector-compare-any_of.ll

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