[all-commits] [llvm/llvm-project] b20e06: [flang][acc] Generate acc.bounds operation from FI...

[Razvan Lupusoru via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b20e063a90cc9277a3f2dc1f4bac39bce812c7ff
      https://github.com/llvm/llvm-project/commit/b20e063a90cc9277a3f2dc1f4bac39bce812c7ff
  Author: Razvan Lupusoru <razvan.lupusoru at gmail.com>
  Date:   2025-04-22 (Tue, 22 Apr 2025)

  Changed paths:
    M flang/lib/Optimizer/OpenACC/FIROpenACCTypeInterfaces.cpp
    M flang/test/Fir/OpenACC/openacc-mappable.fir

  Log Message:
  -----------
  [flang][acc] Generate acc.bounds operation from FIR shape (#136637)

This PR adds support to be able to generate `acc.bounds` operation
through `MappableType`'s `generateAccBounds` when there is no fir.box
entity. This is especially useful because the FIR type does not capture
size information for explicit-shape arrays and current implementation
relied on finding the box entity.

This scenario is possible because during HLFIRtoFIR, `fir.array_coor`
and `fir.box_addr` operations are often optimized to use raw address. If
one tries to map the ssa value that represents such a variable, correct
dimensions need extracted from the shape information held in the fir
declare operation.



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