[flang][HLFIR] Relax InlineElementals to support more than two users (#186916)

This pr optimizes the lowering of MINLOC and MAXLOC when the MASK
argument is a simple equality comparison (e.g., MASK = A == X).

This patch introduces isEqualityMask to identify these patterns and
inline the comparison directly into the reduction loop.

This allows the SimplifyHLFIRIntrinsicscation pass to extract the
invariant
search target and bypasses the creation of a temporary logical mask
array
by inlining the equality comparison directly into the reduction loop.
optimization removes the 'hlfir.apply' to the mask's hlfir.elemental,
which
gets eliminated in bufferize-hlfir pass.
Simplifies the reduction state by removing the min/max value tracker,
as the target value is already known.
Implements a 'first-hit' locking mechanism.

---------

Co-authored-by: anoop.kumar6@ibm.com <anoopk@b35lp63.lnxne.boe>
2 files changed
tree: 6fa38abc7a75177a2be726d4ae8c51daa9f90e7e
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libsycl/
  16. libunwind/
  17. lld/
  18. lldb/
  19. llvm/
  20. llvm-libgcc/
  21. mlir/
  22. offload/
  23. openmp/
  24. orc-rt/
  25. polly/
  26. runtimes/
  27. third-party/
  28. utils/
  29. .clang-format
  30. .clang-format-ignore
  31. .clang-tidy
  32. .git-blame-ignore-revs
  33. .gitattributes
  34. .gitignore
  35. .mailmap
  36. CODE_OF_CONDUCT.md
  37. CONTRIBUTING.md
  38. LICENSE.TXT
  39. pyproject.toml
  40. README.md
  41. SECURITY.md
README.md

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