[all-commits] [llvm/llvm-project] 627463: [X86][FP16] Limit combination of fp_round & concat...

[Feng Zou via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 627463dc39b569527243ce67902048c59521d5e0
      https://github.com/llvm/llvm-project/commit/627463dc39b569527243ce67902048c59521d5e0
  Author: Feng Zou <feng.zou at intel.com>
  Date:   2024-06-05 (Wed, 05 Jun 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    A llvm/test/CodeGen/X86/fp-round-with-concat-vector-undef-elem.ll

  Log Message:
  -----------
  [X86][FP16] Limit combination of fp_round & concat to concat of 2 operands (#94302)

Add check of number of operands for concat_vectors being equal to 2.
This can
avoid crash if there are more than 2 operands for concat_vectors and
operand 0 & 1 are undef value.



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