[all-commits] [llvm/llvm-project] 06de42: [X86] Directly form VBROADCAST_LOAD in lowerShuffl...

topperc via All-commits all-commits at lists.llvm.org
Wed Mar 4 09:12:20 PST 2020


  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 06de4264260d24761e3d1e6ab815db0370b1d314
      https://github.com/llvm/llvm-project/commit/06de4264260d24761e3d1e6ab815db0370b1d314
  Author: Craig Topper <craig.topper at gmail.com>
  Date:   2020-03-04 (Wed, 04 Mar 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp

  Log Message:
  -----------
  [X86] Directly form VBROADCAST_LOAD in lowerShuffleAsBroadcast on AVX targets.

If we would emit a VBROADCAST node, we can instead directly emit
a VBROADCAST_LOAD. This allows us to get rid of the special case
to use an f64 load on 32-bit targets for vXi64.

I believe there is more cleanup we can do later in this function,
but I'll do that in follow ups.




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