[OpenMP][Flang] Workaround omp_lib error

[jplehr]

It appears that omp_lib is not correctly (or maybe not at all?) found from the build directory. This made a few buildbots break after PR#121356 landed.
This is a workaround to unblock the buildbots.

https://lab.llvm.org/staging/#/builders/130/builds/12654
https://lab.llvm.org/buildbot/#/builders/140/builds/15102
https://lab.llvm.org/staging/#/builders/105/builds/13855

[llvmbot]

@llvm/pr-subscribers-flang-openmp

@llvm/pr-subscribers-flang-fir-hlfir

Author: Jan Patrick Lehr (jplehr)

Changes

It appears that omp_lib is not correctly (or maybe not at all?) found from the build directory. This made a few buildbots break after PR#121356 landed.
This is a workaround to unblock the buildbots.

https://lab.llvm.org/staging/#/builders/130/builds/12654
https://lab.llvm.org/buildbot/#/builders/140/builds/15102
https://lab.llvm.org/staging/#/builders/105/builds/13855

---

Full diff: https://github.com/llvm/llvm-project/pull/123666.diff

1 Files Affected:

• (modified) flang/test/Lower/OpenMP/Todo/allocate-clause-allocator.f90 (+2-1)

diff --git a/flang/test/Lower/OpenMP/Todo/allocate-clause-allocator.f90 b/flang/test/Lower/OpenMP/Todo/allocate-clause-allocator.f90
index d33bdf9f9a8db2..90158a61f75039 100644
--- a/flang/test/Lower/OpenMP/Todo/allocate-clause-allocator.f90
+++ b/flang/test/Lower/OpenMP/Todo/allocate-clause-allocator.f90
@@ -4,7 +4,8 @@
 ! CHECK: not yet implemented: Unhandled clause allocate in omp.parallel
 ! CHECK: LLVM Translation failed for operation: omp.parallel
 program p
-  use omp_lib
+  !use omp_lib
+  integer(8),parameter::omp_default_mem_alloc=1_8
   integer :: x
   integer :: a
   integer :: i

[kparzysz]

This is a problem that comes back over and over again. The module files are not updated correctly when they need to be, but the need for update may be hard for cmake to figure out automatically. Maybe they should be regenerated from scratch every time in target libomp-mod..?

[jplehr]

Hmm... I looked around and it appears that the .mod files are built and an installed version of the compiler can compile the test case. it seems that just the build-tree executable is not able to find the module file.
I think I also did not see any other use of omp_lib in the test case directory.

[jplehr]

I looked around and it appears that the .mod files are built

Scratch that. I just checked again and the .mod file is indeed missing from the build tree.

[tblah]

Thanks for fixing this