[all-commits] [llvm/llvm-project] 90cf10: [flang][hlfir] Lower NULL(MOLD) to a variable

[jeanPerier via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 90cf1014243b2edec249cab7a0bfde1e8c0fdf1c
      https://github.com/llvm/llvm-project/commit/90cf1014243b2edec249cab7a0bfde1e8c0fdf1c
  Author: Jean Perier <jperier at nvidia.com>
  Date:   2023-04-25 (Tue, 25 Apr 2023)

  Changed paths:
    M flang/lib/Lower/ConvertCall.cpp
    A flang/test/Lower/HLFIR/null.f90

  Log Message:
  -----------
  [flang][hlfir] Lower NULL(MOLD) to a variable

HLFIR lowering promotes intrinsic results lowered in memory to
hlfir.expr to underline their read-only aspect once they are created.
NULL(MOLD) should not be promoted to an hlfir.expr, it is the NULL
variable (we need to see it as an address).

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D149053