[all-commits] [llvm/llvm-project] 317958: [X86][AVX] ComputeNumSignBitsForTargetNode - add X...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3179588947fef91d082e022347d856ec1d18b6ad
      https://github.com/llvm/llvm-project/commit/3179588947fef91d082e022347d856ec1d18b6ad
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-03-21 (Sun, 21 Mar 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/combine-pmuldq.ll

  Log Message:
  -----------
  [X86][AVX] ComputeNumSignBitsForTargetNode - add X86ISD::VBROADCAST handling for scalar sources

The target shuffle code handles vector sources, but X86ISD::VBROADCAST can also accept a scalar source for splatting.

Added as an extension to PR49658