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authorTobias Burnus <tobias@codesourcery.com>2022-05-17 22:09:16 +0200
committerTobias Burnus <tobias@codesourcery.com>2022-05-17 22:09:16 +0200
commit47554478a13f64bff1ee4b9bb0319ae63d42ca52 (patch)
tree42acab11fa43a8ff23a2b29c37ed310be3a15f04 /gcc
parentddb1427defe95341ac2eb672e7bea7303f8c7db9 (diff)
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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.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/omp-low.cc10
-rw-r--r--gcc/testsuite/c-c++-common/gomp/target-device-ancestor-5.c28
2 files changed, 38 insertions, 0 deletions
diff --git a/gcc/omp-low.cc b/gcc/omp-low.cc
index b97e0e9..c83af6c 100644
--- a/gcc/omp-low.cc
+++ b/gcc/omp-low.cc
@@ -3883,6 +3883,16 @@ 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/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 0000000..b6ff84b
--- /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'" } */
+ { }
+
+}