[flang][openmp] Fujitsu tests 0523_0011 and 0523_0012 with "declare simd" fail to compile

[eugeneepshteyn]

Tests:

• https://github.com/fujitsu/compiler-test-suite/blob/main/Fortran/0523/0523_0011.f90
• https://github.com/fujitsu/compiler-test-suite/blob/main/Fortran/0523/0523_0012.f90

Compilation error:

$ flang -c -fopenmp 0523_0012.f90
error: Semantic errors in 0523_0012.f90
0523_0012.f90:13:20: error: The name 'add' should refer to a procedure
  !$omp declare simd(add)
                     ^^^
0523_0012.f90:13:20: The name 'add' has been implicitly declared
  !$omp declare simd(add)
                     ^^^

Well, add() is a function, so the error is at least misleading. Perhaps the problem is that add() is the function that contains declare simd construct?

flang version:

flang version 22.0.0git (https://github.com/llvm/llvm-project 89ed5255b9ee88119e409a6d986eb1ad0e8f08e3)
Target: x86_64-unknown-linux-gnu
Thread model: posix

Compilation error started happening sometime between 157b81a910efadf7fa08f6958ca7f7e2200c0ca8 and 114b3b8b04fe5aae4143e30078637015a9e077ce

[kiranchandramohan]

@kparzysz Could you have a look? It could be the following (not sure).

commit e2585583ae8401ab809cbdaee5abb330bc26087d
Author: Krzysztof Parzyszek <Krzysztof.Parzyszek@amd.com>
Date:   Thu Sep 25 10:42:32 2025 -0500

    [flang][OpenMP] Use OmpDirectiveSpecification in DECLARE_SIMD (#160390)

[llvmbot]

@llvm/issue-subscribers-flang-frontend

Author: Eugene Epshteyn (eugeneepshteyn)

Tests: - https://github.com/fujitsu/compiler-test-suite/blob/main/Fortran/0523/0523_0011.f90 - https://github.com/fujitsu/compiler-test-suite/blob/main/Fortran/0523/0523_0012.f90

Compilation error:

$ flang -c -fopenmp 0523_0012.f90
error: Semantic errors in 0523_0012.f90
0523_0012.f90:13:20: error: The name 'add' should refer to a procedure
  !$omp declare simd(add)
                     ^^^
0523_0012.f90:13:20: The name 'add' has been implicitly declared
  !$omp declare simd(add)
                     ^^^

Well, add() is a function, so the error is at least misleading. Perhaps the problem is that add() is the function that contains declare simd construct?

flang version:

flang version 22.0.0git (https://github.com/llvm/llvm-project 89ed5255b9ee88119e409a6d986eb1ad0e8f08e3)
Target: x86_64-unknown-linux-gnu
Thread model: posix

Compilation error started happening sometime between 157b81a910efadf7fa08f6958ca7f7e2200c0ca8 and 114b3b8b04fe5aae4143e30078637015a9e077ce