OpenMP/Fortran: Fix loop-iter var privatization with !$OMP LOOP [PR108512] For 'parallel', loop-iteration variables are marked are marked as 'private', unless they either appear in an omp do/simd loop or an data-sharing clause already exists for those on 'parallel'. 'omp loop' wasn't handled, leading to (potentially) multiple data-sharing clauses in gfc_resolve_do_iterator as omp_current_ctx pointed to the 'parallel' directive, ignoring the in-betwen 'loop' directive. The latter lead to a bogus diagnostic - or rather an ICE as the source location var contained only '\0'. Additionally, several 'case EXEC_OMP...LOOP' have been added to call the right resolution function and likewise for '{masked,master} taskloop'. gcc/fortran/ChangeLog: PR fortran/108512 * openmp.cc (gfc_resolve_omp_parallel_blocks): Handle combined 'loop' directives. (gfc_resolve_do_iterator): Set a source location for added 'private'-clause arguments. * resolve.cc (gfc_resolve_code): Call gfc_resolve_omp_do_blocks also for EXEC_OMP_LOOP and gfc_resolve_omp_parallel_blocks for combined directives with loop + '{masked,master} taskloop (simd)'. gcc/testsuite/ChangeLog: PR fortran/108512 * gfortran.dg/gomp/loop-5.f90: New test. * gfortran.dg/gomp/loop-2.f90: Update dg-error. * gfortran.dg/gomp/taskloop-2.f90: Update dg-error. gcc/fortran/openmp.cc | 13 +++-- gcc/fortran/resolve.cc | 9 +++ gcc/testsuite/gfortran.dg/gomp/loop-2.f90 | 5 ++ gcc/testsuite/gfortran.dg/gomp/loop-5.f90 | 84 +++++++++++++++++++++++++++ gcc/testsuite/gfortran.dg/gomp/taskloop-2.f90 | 2 + 5 files changed, 109 insertions(+), 4 deletions(-) diff --git a/gcc/fortran/openmp.cc b/gcc/fortran/openmp.cc index 1897e1dbc71..abca146d78e 100644 --- a/gcc/fortran/openmp.cc +++ b/gcc/fortran/openmp.cc @@ -9125,28 +9125,32 @@ gfc_resolve_omp_parallel_blocks (gfc_code *code, gfc_namespace *ns) { case EXEC_OMP_DISTRIBUTE_PARALLEL_DO: case EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD: + case EXEC_OMP_MASKED_TASKLOOP: + case EXEC_OMP_MASKED_TASKLOOP_SIMD: + case EXEC_OMP_MASTER_TASKLOOP: + case EXEC_OMP_MASTER_TASKLOOP_SIMD: case EXEC_OMP_PARALLEL_DO: case EXEC_OMP_PARALLEL_DO_SIMD: + case EXEC_OMP_PARALLEL_LOOP: case EXEC_OMP_PARALLEL_MASKED_TASKLOOP: case EXEC_OMP_PARALLEL_MASKED_TASKLOOP_SIMD: case EXEC_OMP_PARALLEL_MASTER_TASKLOOP: case EXEC_OMP_PARALLEL_MASTER_TASKLOOP_SIMD: - case EXEC_OMP_MASKED_TASKLOOP: - case EXEC_OMP_MASKED_TASKLOOP_SIMD: - case EXEC_OMP_MASTER_TASKLOOP: - case EXEC_OMP_MASTER_TASKLOOP_SIMD: case EXEC_OMP_TARGET_PARALLEL_DO: case EXEC_OMP_TARGET_PARALLEL_DO_SIMD: + case EXEC_OMP_TARGET_PARALLEL_LOOP: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD: + case EXEC_OMP_TARGET_TEAMS_LOOP: case EXEC_OMP_TASKLOOP: case EXEC_OMP_TASKLOOP_SIMD: case EXEC_OMP_TEAMS_DISTRIBUTE: case EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO: case EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD: case EXEC_OMP_TEAMS_DISTRIBUTE_SIMD: + case EXEC_OMP_TEAMS_LOOP: gfc_resolve_omp_do_blocks (code, ns); break; default: @@ -9225,6 +9229,7 @@ gfc_resolve_do_iterator (gfc_code *code, gfc_symbol *sym, bool add_clause) p = gfc_get_omp_namelist (); p->sym = sym; + p->where = omp_current_ctx->code->loc; p->next = omp_clauses->lists[OMP_LIST_PRIVATE]; omp_clauses->lists[OMP_LIST_PRIVATE] = p; } diff --git a/gcc/fortran/resolve.cc b/gcc/fortran/resolve.cc index 549916c2b53..96c34065691 100644 --- a/gcc/fortran/resolve.cc +++ b/gcc/fortran/resolve.cc @@ -11923,9 +11923,14 @@ gfc_resolve_code (gfc_code *code, gfc_namespace *ns) break; case EXEC_OMP_DISTRIBUTE_PARALLEL_DO: case EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD: + case EXEC_OMP_MASKED_TASKLOOP: + case EXEC_OMP_MASKED_TASKLOOP_SIMD: + case EXEC_OMP_MASTER_TASKLOOP: + case EXEC_OMP_MASTER_TASKLOOP_SIMD: case EXEC_OMP_PARALLEL: case EXEC_OMP_PARALLEL_DO: case EXEC_OMP_PARALLEL_DO_SIMD: + case EXEC_OMP_PARALLEL_LOOP: case EXEC_OMP_PARALLEL_MASKED: case EXEC_OMP_PARALLEL_MASKED_TASKLOOP: case EXEC_OMP_PARALLEL_MASKED_TASKLOOP_SIMD: @@ -11936,11 +11941,13 @@ gfc_resolve_code (gfc_code *code, gfc_namespace *ns) case EXEC_OMP_TARGET_PARALLEL: case EXEC_OMP_TARGET_PARALLEL_DO: case EXEC_OMP_TARGET_PARALLEL_DO_SIMD: + case EXEC_OMP_TARGET_PARALLEL_LOOP: case EXEC_OMP_TARGET_TEAMS: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD: case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD: + case EXEC_OMP_TARGET_TEAMS_LOOP: case EXEC_OMP_TASK: case EXEC_OMP_TASKLOOP: case EXEC_OMP_TASKLOOP_SIMD: @@ -11949,6 +11956,7 @@ gfc_resolve_code (gfc_code *code, gfc_namespace *ns) case EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO: case EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD: case EXEC_OMP_TEAMS_DISTRIBUTE_SIMD: + case EXEC_OMP_TEAMS_LOOP: omp_workshare_save = omp_workshare_flag; omp_workshare_flag = 0; gfc_resolve_omp_parallel_blocks (code, ns); @@ -11957,6 +11965,7 @@ gfc_resolve_code (gfc_code *code, gfc_namespace *ns) case EXEC_OMP_DISTRIBUTE_SIMD: case EXEC_OMP_DO: case EXEC_OMP_DO_SIMD: + case EXEC_OMP_LOOP: case EXEC_OMP_SIMD: case EXEC_OMP_TARGET_SIMD: gfc_resolve_omp_do_blocks (code, ns); diff --git a/gcc/testsuite/gfortran.dg/gomp/loop-2.f90 b/gcc/testsuite/gfortran.dg/gomp/loop-2.f90 index 4962683f2b0..2d83e3a7507 100644 --- a/gcc/testsuite/gfortran.dg/gomp/loop-2.f90 +++ b/gcc/testsuite/gfortran.dg/gomp/loop-2.f90 @@ -18,18 +18,23 @@ do i = 1, 64 end do !$omp loop reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" } + ! { dg-error "With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } do i = 1, 64 end do !$omp teams loop reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" } + ! { dg-error "With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } do i = 1, 64 end do !$omp parallel loop reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" } + ! { dg-error "With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } do i = 1, 64 end do !$omp target teams loop reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" } + ! { dg-error "With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } do i = 1, 64 end do !$omp target parallel loop reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" } + ! { dg-error "With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } do i = 1, 64 end do diff --git a/gcc/testsuite/gfortran.dg/gomp/loop-5.f90 b/gcc/testsuite/gfortran.dg/gomp/loop-5.f90 new file mode 100644 index 00000000000..1948e782653 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/gomp/loop-5.f90 @@ -0,0 +1,84 @@ +! { dg-additional-options "-fdump-tree-original" } +! +! PR fortran/108512 + +! The problem was that the context wasn't reset for the 'LOOP' +! such that the clauses of the loops weren't seen when adding +! PRIVATE clauses. +! +! In the following, only the loop variable of the non-OpenMP loop +! in 'subroutine four' should get a front-end addded PRIVATE clause + +implicit none +integer :: x, a(10), b(10), n + n = 10 + a = -42 + b = [(2*x, x=1,10)] + +! { dg-final { scan-tree-dump-times "#pragma omp target map\\(tofrom:a\\) map\\(tofrom:b\\) map\\(tofrom:x\\)\[\r\n\]" 1 "original" } } +! { dg-final { scan-tree-dump-times "#pragma omp parallel\[\r\n\]" 2 "original" } } +! ^- shows up twice; checked only here. +! { dg-final { scan-tree-dump-times "#pragma omp loop lastprivate\\(x\\)\[\r\n\]" 1 "original" } } + + !$omp target parallel map(tofrom: a, b, x) + !$omp loop lastprivate(x) + DO x = 1, n + a(x) = a(x) + b(x) + END DO + !$omp end loop + !$omp end target parallel + if (x /= 11) error stop + if (any (a /= [(2*x - 42, x=1,10)])) error stop + call two() + call three() + call four() +end + +subroutine two + implicit none + integer :: ii, mm, arr(10) + mm = 10 + arr = 0 + +! { dg-final { scan-tree-dump-times "#pragma omp target map\\(tofrom:arr\\) map\\(tofrom:ii\\)\[\r\n\]" 1 "original" } } +! { dg-final { scan-tree-dump-times "#pragma omp parallel shared\\(ii\\)\[\r\n\]" 1 "original" } } +! { dg-final { scan-tree-dump-times "#pragma omp loop lastprivate\\(ii\\)\[\r\n\]" 1 "original" } } + + !$omp target parallel loop map(tofrom: arr) lastprivate(ii) + DO ii = 1, mm + arr(ii) = arr(ii) + ii + END DO +end + +subroutine three + implicit none + integer :: kk, zz, var(10) + zz = 10 + var = 0 + +! { dg-final { scan-tree-dump-times "#pragma omp target map\\(tofrom:var\\)\[\r\n\]" 1 "original" } } +! "#pragma omp parallel\[\r\n\]" - shows up twice, dump checked above +! { dg-final { scan-tree-dump-times "#pragma omp loop\[\r\n\]" 1 "original" } } + + !$omp target parallel loop map(tofrom: var) + DO kk = 1, zz + var(kk) = var(kk) + kk + END DO +end + +subroutine four + implicit none + integer :: jj, qq, dist(10) + qq = 10 + dist = 0 + +! { dg-final { scan-tree-dump-times "#pragma omp target map\\(tofrom:dist\\)\[\r\n\]" 1 "original" } } +! { dg-final { scan-tree-dump-times "#pragma omp parallel private\\(jj\\)\[\r\n\]" 1 "original" } } + + !$omp target parallel map(tofrom: dist) + ! *no* '!$omp do/loop/simd' + DO jj = 1, qq + dist(qq) = dist(qq) + qq + END DO + !$omp end target parallel +end diff --git a/gcc/testsuite/gfortran.dg/gomp/taskloop-2.f90 b/gcc/testsuite/gfortran.dg/gomp/taskloop-2.f90 index 21427623584..41b4d6d2191 100644 --- a/gcc/testsuite/gfortran.dg/gomp/taskloop-2.f90 +++ b/gcc/testsuite/gfortran.dg/gomp/taskloop-2.f90 @@ -27,9 +27,11 @@ end do do i = 1, 64 ! { dg-error "OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } end do !$omp master taskloop reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" } + ! { dg-error "With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } do i = 1, 64 end do !$omp master taskloop simd reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" } + ! { dg-error "With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" "" { target *-*-* } .-1 } do i = 1, 64 end do !$omp parallel master taskloop reduction(inscan, +: r) ! { dg-error "'inscan' REDUCTION clause on construct other than DO, SIMD, DO SIMD, PARALLEL DO, PARALLEL DO SIMD" }