[PATCH] D17229: [CodeGen] Document and use getConstant's splat-building feature.

[Ahmed Bougacha via llvm-commits]

ab created this revision.
ab added subscribers: RKSimon, spatel, arsenm, llvm-commits.

As discussed in D17176, getConstant already supports splats; let's use it!

As I mention there, I do think that the name "getConstant" could be confusing. In practice I don't think it's a problem, with proper names and context. That's not ideal though, so perhaps we should add "getConstantVec" (or "getConstantSplat"?) versions of the 6 getConstant variants we already have?


http://reviews.llvm.org/D17229

Files:
  include/llvm/CodeGen/SelectionDAG.h
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
  lib/Target/ARM/ARMISelLowering.cpp
  lib/Target/PowerPC/PPCISelLowering.cpp
  lib/Target/X86/X86ISelLowering.cpp

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