* [PATCH, OpenMP, Fortran] PR103643: ICE in gimplify_omp_affinity
@ 2022-01-03 14:51 Chung-Lin Tang
2022-01-03 15:09 ` Jakub Jelinek
0 siblings, 1 reply; 2+ messages in thread
From: Chung-Lin Tang @ 2022-01-03 14:51 UTC (permalink / raw)
To: gcc-patches, Jakub Jelinek, Tobias Burnus
[-- Attachment #1: Type: text/plain, Size: 1072 bytes --]
After the PR90030 patch, which removes the universal casting of all Fortran array pointers to 'c_char*',
a Fortran descriptor based array passed into an affinity() clause now looks like:
- #pragma omp task private(i) shared(b) affinity(*(c_char *) a.data)
+ #pragma omp task private(i) shared(b) affinity(*(integer(kind=4)[0:] * restrict) a.data)
The 'integer(kind=4)[0:]' incomplete type appears to be causing ICE during gimplify_expr() due to
is_gimple_val, fb_rvalue. The ICE appears to be fixed just by adjusting to 'is_gimple_lvalue, fb_lvalue'.
Considering the use of the affinity() clause, which should be specifying the location of a particular
object in memory, this probably makes sense.
Tested without regressions, seeking approval for trunk.
Thanks,
Chung-Lin
2022-01-03 Chung-Lin Tang <cltang@codesourcery.com>
gcc/ChangeLog:
PR middle-end/103643
* gimplify.c (gimplify_omp_affinity): Adjust gimplify_expr of entire
OMP_CLAUSE_DECL to use 'is_gimple_lvalue, fb_lvalue'
gcc/testsuite/ChangeLog:
* gfortran.dg/gomp/pr103643.f90: New test.
[-- Attachment #2: pr103643.patch --]
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diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index b118c72f62c..87cc01483dd 100644
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -8123,7 +8123,7 @@ gimplify_omp_affinity (tree *list_p, gimple_seq *pre_p)
if (error_operand_p (OMP_CLAUSE_DECL (c)))
return;
if (gimplify_expr (&OMP_CLAUSE_DECL (c), pre_p, NULL,
- is_gimple_val, fb_rvalue) == GS_ERROR)
+ is_gimple_lvalue, fb_lvalue) == GS_ERROR)
return;
gimplify_and_add (OMP_CLAUSE_DECL (c), pre_p);
}
diff --git a/gcc/testsuite/gfortran.dg/gomp/pr103643.f90 b/gcc/testsuite/gfortran.dg/gomp/pr103643.f90
new file mode 100644
index 00000000000..3b409f5f858
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/gomp/pr103643.f90
@@ -0,0 +1,19 @@
+! PR middle-end/103643
+! { dg-do compile }
+
+program test_task_affinity
+ implicit none
+ integer i
+ integer, allocatable :: A(:)
+
+ allocate (A(10))
+
+ !$omp target
+ !$omp task affinity(A)
+ do i = 1, 10
+ A(i) = 0
+ end do
+ !$omp end task
+ !$omp end target
+
+end program test_task_affinity
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH, OpenMP, Fortran] PR103643: ICE in gimplify_omp_affinity
2022-01-03 14:51 [PATCH, OpenMP, Fortran] PR103643: ICE in gimplify_omp_affinity Chung-Lin Tang
@ 2022-01-03 15:09 ` Jakub Jelinek
0 siblings, 0 replies; 2+ messages in thread
From: Jakub Jelinek @ 2022-01-03 15:09 UTC (permalink / raw)
To: Chung-Lin Tang; +Cc: gcc-patches, Tobias Burnus
On Mon, Jan 03, 2022 at 10:51:49PM +0800, Chung-Lin Tang wrote:
> After the PR90030 patch, which removes the universal casting of all Fortran array pointers to 'c_char*',
> a Fortran descriptor based array passed into an affinity() clause now looks like:
>
> - #pragma omp task private(i) shared(b) affinity(*(c_char *) a.data)
> + #pragma omp task private(i) shared(b) affinity(*(integer(kind=4)[0:] * restrict) a.data)
>
> The 'integer(kind=4)[0:]' incomplete type appears to be causing ICE during gimplify_expr() due to
> is_gimple_val, fb_rvalue. The ICE appears to be fixed just by adjusting to 'is_gimple_lvalue, fb_lvalue'.
> Considering the use of the affinity() clause, which should be specifying the location of a particular
> object in memory, this probably makes sense.
>
> Tested without regressions, seeking approval for trunk.
>
> Thanks,
> Chung-Lin
>
> 2022-01-03 Chung-Lin Tang <cltang@codesourcery.com>
>
> gcc/ChangeLog:
>
> PR middle-end/103643
> * gimplify.c (gimplify_omp_affinity): Adjust gimplify_expr of entire
> OMP_CLAUSE_DECL to use 'is_gimple_lvalue, fb_lvalue'
>
> gcc/testsuite/ChangeLog:
>
> * gfortran.dg/gomp/pr103643.f90: New test.
Ok, thanks.
Jakub
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2022-01-03 14:51 [PATCH, OpenMP, Fortran] PR103643: ICE in gimplify_omp_affinity Chung-Lin Tang
2022-01-03 15:09 ` Jakub Jelinek
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