[all-commits] [llvm/llvm-project] 6db259: [PreISelIntrinsicLowering] Zext/trunc count parame...

[Alex Bradbury via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6db2594c48b0aa5b13f5ac1664bcc42e836163c9
      https://github.com/llvm/llvm-project/commit/6db2594c48b0aa5b13f5ac1664bcc42e836163c9
  Author: Alex Bradbury <asb at igalia.com>
  Date:   2025-03-19 (Wed, 19 Mar 2025)

  Changed paths:
    M llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
    M llvm/test/Transforms/PreISelIntrinsicLowering/X86/memset-pattern.ll

  Log Message:
  -----------
  [PreISelIntrinsicLowering] Zext/trunc count parameter as necessary for memset_pattern16 emission (#129239)

This patch cleans up the handling of the count parameter in general,
though was initially motivated by a compiler crash upon a memset.pattern
with a narrow count causing a compiler crash due to different types for
CreateMul when converting the count to the number of bytes.

The logic used to name globals means there is some minor renaming churn
in the output to
test/Transforms/PreISelIntrinsicLowering/X86/memset-pattern.ll
irrelevant to the newly added tests (that would crash before).



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