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* [gcc/devel/omp/gcc-12] OpenMP: Skip target-nesting warning for reverse offload
@ 2022-07-05 8:10 Tobias Burnus
0 siblings, 0 replies; only message in thread
From: Tobias Burnus @ 2022-07-05 8:10 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:d89bf164516d06684f120a42d9f8d351f8e5dd2f
commit d89bf164516d06684f120a42d9f8d351f8e5dd2f
Author: Tobias Burnus <tobias@codesourcery.com>
Date: Tue Jul 5 08:36:42 2022 +0200
OpenMP: Skip target-nesting warning for reverse offload
gcc/ChangeLog:
* omp-low.cc (check_omp_nesting_restrictions): Skip warning for
target inside target if inner is reverse offload.
gcc/testsuite/ChangeLog:
* c-c++-common/gomp/target-device-ancestor-5.c: New test.
(cherry picked from commit 47554478a13f64bff1ee4b9bb0319ae63d42ca52)
Diff:
---
gcc/ChangeLog.omp | 8 +++++++
gcc/omp-low.cc | 10 ++++++++
gcc/testsuite/ChangeLog.omp | 7 ++++++
.../c-c++-common/gomp/target-device-ancestor-5.c | 28 ++++++++++++++++++++++
4 files changed, 53 insertions(+)
diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp
index e146e14e6f8..06a194e744c 100644
--- a/gcc/ChangeLog.omp
+++ b/gcc/ChangeLog.omp
@@ -1,3 +1,11 @@
+2022-07-05 Tobias Burnus <tobias@codesourcery.com>
+
+ Backport from mainline:
+ 2022-05-17 Tobias Burnus <tobias@codesourcery.com>
+
+ * omp-low.cc (check_omp_nesting_restrictions): Skip warning for
+ target inside target if inner is reverse offload.
+
2022-07-04 Tobias Burnus <tobias@codesourcery.com>
Backport from mainline:
diff --git a/gcc/omp-low.cc b/gcc/omp-low.cc
index c366fb55c80..adefaa527a7 100644
--- a/gcc/omp-low.cc
+++ b/gcc/omp-low.cc
@@ -4377,6 +4377,16 @@ check_omp_nesting_restrictions (gimple *stmt, omp_context *ctx)
}
else
{
+ if ((gimple_omp_target_kind (ctx->stmt)
+ == GF_OMP_TARGET_KIND_REGION)
+ && (gimple_omp_target_kind (stmt)
+ == GF_OMP_TARGET_KIND_REGION))
+ {
+ c = omp_find_clause (gimple_omp_target_clauses (stmt),
+ OMP_CLAUSE_DEVICE);
+ if (c && OMP_CLAUSE_DEVICE_ANCESTOR (c))
+ break;
+ }
warning_at (gimple_location (stmt), 0,
"%qs construct inside of %qs region",
stmt_name, ctx_stmt_name);
diff --git a/gcc/testsuite/ChangeLog.omp b/gcc/testsuite/ChangeLog.omp
index 0bfd4f2a3b7..4bd6d97f8a0 100644
--- a/gcc/testsuite/ChangeLog.omp
+++ b/gcc/testsuite/ChangeLog.omp
@@ -1,3 +1,10 @@
+2022-07-05 Tobias Burnus <tobias@codesourcery.com>
+
+ Backport from mainline:
+ 2022-05-17 Tobias Burnus <tobias@codesourcery.com>
+
+ * c-c++-common/gomp/target-device-ancestor-5.c: New test.
+
2022-07-04 Tobias Burnus <tobias@codesourcery.com>
Backport from mainline:
diff --git a/gcc/testsuite/c-c++-common/gomp/target-device-ancestor-5.c b/gcc/testsuite/c-c++-common/gomp/target-device-ancestor-5.c
new file mode 100644
index 00000000000..b6ff84bcdab
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/gomp/target-device-ancestor-5.c
@@ -0,0 +1,28 @@
+#pragma omp requires reverse_offload /* { dg-message "sorry, unimplemented: 'reverse_offload' clause on 'requires' directive not supported yet" } */
+
+void
+foo ()
+{
+ /* Good nesting - as reverse offload */
+ #pragma omp target
+ #pragma omp target device(ancestor:1) /* valid -> no warning */ /* { dg-bogus "'target' construct inside of 'target' region" } */
+ { }
+
+ /* Bad nesting */
+ #pragma omp target
+ #pragma omp target /* { dg-warning "'target' construct inside of 'target' region" } */
+ #pragma omp target /* { dg-warning "'target' construct inside of 'target' region" } */
+ { }
+
+ /* Good nesting - as reverse offload */
+ #pragma omp target
+ #pragma omp target /* { dg-warning "'target' construct inside of 'target' region" } */
+ #pragma omp target device(ancestor:1) /* valid -> no warning */ /* { dg-bogus "'target' construct inside of 'target' region" } */
+ { }
+
+ #pragma omp target
+ #pragma omp target device(ancestor:1) /* valid -> no warning */ /* { dg-bogus "'target' construct inside of 'target' region" } */
+ #pragma omp target device(ancestor:1) /* { dg-error "OpenMP constructs are not allowed in target region with 'ancestor'" } */
+ { }
+
+}
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