[all-commits] [llvm/llvm-project] 342f7d: [SLP]Fix PR86620: check final minbitwidth for trun...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 342f7d0d35774ffdcb56e8b92252763a59bd2c29
      https://github.com/llvm/llvm-project/commit/342f7d0d35774ffdcb56e8b92252763a59bd2c29
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2024-03-26 (Tue, 26 Mar 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/RISCV/trunc-to-large-than-bw.ll
    M llvm/test/Transforms/SLPVectorizer/X86/int-bitcast-minbitwidth.ll

  Log Message:
  -----------
  [SLP]Fix PR86620: check final minbitwidth for truncs/exts before
accepting it.

If the minbitwidth is deduced from the demanded elements, need to check
the final bitwidthfor trunc/ext instruction, bot blindly accepting
the used one.



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