[all-commits] [llvm/llvm-project] c20385: [flang][hlfir] Support fir.declare in AbstractResu...

[jeanPerier via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c203850ad55de6e1396d5735e4d9b56b66db9220
      https://github.com/llvm/llvm-project/commit/c203850ad55de6e1396d5735e4d9b56b66db9220
  Author: Jean Perier <jperier at nvidia.com>
  Date:   2023-04-25 (Tue, 25 Apr 2023)

  Changed paths:
    M flang/lib/Optimizer/Transforms/AbstractResult.cpp
    M flang/test/Fir/abstract-results.fir

  Log Message:
  -----------
  [flang][hlfir] Support fir.declare in AbstractResult pass

The AbstractResult pass replaces allocation of function result on the callee
side per an extra argument so that the allocation of the result can be
done on the caller stack.
It looks for the result allocation from the fir.return op, so it needs
to handle (in a transparent way) a fir.declare in the chain between the
allocation and the fir.return.

Reviewed By: vzakhari, clementval

Differential Revision: https://reviews.llvm.org/D149057