[all-commits] [llvm/llvm-project] ed4124: [CostModel][X86] Update AVX1 sext v4i1 -> v4i64 co...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ed412494988411fc1aae2f1014c4ecad56d8085f
      https://github.com/llvm/llvm-project/commit/ed412494988411fc1aae2f1014c4ecad56d8085f
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-04-04 (Thu, 04 Apr 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86TargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/X86/cast.ll
    M llvm/test/Analysis/CostModel/X86/extend.ll

  Log Message:
  -----------
  [CostModel][X86] Update AVX1 sext v4i1 -> v4i64 cost based off worst case llvm-mca numbers

We were using raw instruction count which overestimated the costs for #67803



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