[all-commits] [llvm/llvm-project] 6a1ad7: [X86] Don't return true from isTruncateFree for ve...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 6a1ad76dab69589bdb2a37e7ad972e7511091065
      https://github.com/llvm/llvm-project/commit/6a1ad76dab69589bdb2a37e7ad972e7511091065
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-04-30 (Thu, 30 Apr 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86TargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/X86/cast.ll
    M llvm/test/Analysis/CostModel/X86/min-legal-vector-width.ll
    M llvm/test/Analysis/CostModel/X86/trunc.ll
    M llvm/test/CodeGen/X86/shift-combine.ll

  Log Message:
  -----------
  [X86] Don't return true from isTruncateFree for vectors

Also fix some cost tables for vXi1 types to match the costs entries for the types they will be promoted to.

Differential Revision: https://reviews.llvm.org/D79045