[OpenMP] Compiler crash during target compilation of 'uses_allocator' clause

[jhuber6]

The following test sourced from the libomptarget test suite fails to compile due to an unexplained crash during code generation. The reproducer is at https://godbolt.org/z/TcYfj5bfY.

#include <omp.h>

void test_omp_aligned_alloc_on_device() {
  omp_memspace_handle_t memspace = omp_default_mem_space;
  omp_alloctrait_t traits[2] = {{omp_atk_alignment, 64}, {omp_atk_access, 64}};
  omp_allocator_handle_t alloc =
      omp_init_allocator(omp_default_mem_space, 1, traits);

#pragma omp target uses_allocators(alloc(traits))
  {
    int *x;

    x = (int *)omp_aligned_alloc(64, sizeof(int), alloc);
      omp_free(x, alloc);
  }

  omp_destroy_allocator(alloc);
}

[llvmbot]

@llvm/issue-subscribers-clang-codegen

Author: Joseph Huber (jhuber6)

The following test sourced from the `libomptarget` test suite fails to compile due to an unexplained crash during code generation. The reproducer is at https://godbolt.org/z/TcYfj5bfY.

#include <omp.h>

void test_omp_aligned_alloc_on_device() {
  omp_memspace_handle_t memspace = omp_default_mem_space;
  omp_alloctrait_t traits[2] = {{omp_atk_alignment, 64}, {omp_atk_access, 64}};
  omp_allocator_handle_t alloc =
      omp_init_allocator(omp_default_mem_space, 1, traits);

#pragma omp target uses_allocators(alloc(traits))
  {
    int *x;

    x = (int *)omp_aligned_alloc(64, sizeof(int), alloc);
      omp_free(x, alloc);
  }

  omp_destroy_allocator(alloc);
}