[all-commits] [llvm/llvm-project] ea5b2b: [RelLookupTableConverter] Allow multiple uses of l...

[PiJoules via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ea5b2be249599ba4e7fc6c6c574ee6a936bafd3f
      https://github.com/llvm/llvm-project/commit/ea5b2be249599ba4e7fc6c6c574ee6a936bafd3f
  Author: PiJoules <leonardchan at google.com>
  Date:   2026-09-16 (Wed, 16 Sep 2026)

  Changed paths:
    M llvm/lib/Transforms/Utils/RelLookupTableConverter.cpp
    M llvm/test/Transforms/RelLookupTableConverter/X86/relative_lookup_table.ll

  Log Message:
  -----------
  [RelLookupTableConverter] Allow multiple uses of loaded value (#223853)

RelLookupTableConverter previously required `!Load ||
!Load->hasOneUse()`, which prevented converting lookup tables if the
loaded pointer was used more than once in the function.

This restriction is unnecessary since the loaded value itself can be
used many times. The check was likely an over-zealous carryover from
`GV->hasOneUse()` and `GEP->hasOneUse()`.

Remove the check and add a test verifying that lookup tables with
multiple uses of the loaded pointer are converted.



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