[Clang][OpenMP] Bug fix Default clause variable category #168846
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November 14, 2025 14:34
…de in test to restore Ubuntu build. This is not needed as allocatable modifier is not applicable to the default clause in C/C++.
builders at Google, Reported by Prabhu Rajasekaran.
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@llvm/pr-subscribers-clang Author: None (SunilKuravinakop) ChangesSame changes as in fix for #165276 except for changes in test case :
Full diff: https://github.com/llvm/llvm-project/pull/168846.diff 2 Files Affected:
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 81c591a00cfc6..31c8f0cd30c56 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -1364,15 +1364,15 @@ DSAStackTy::DSAVarData DSAStackTy::getDSA(const_iterator &Iter,
DefaultDataSharingAttributes IterDA = Iter->DefaultAttr;
switch (Iter->DefaultVCAttr) {
case DSA_VC_aggregate:
- if (!VD->getType()->isAggregateType())
+ if (!D->getType()->isAggregateType())
IterDA = DSA_none;
break;
case DSA_VC_pointer:
- if (!VD->getType()->isPointerType())
+ if (!D->getType()->isPointerType())
IterDA = DSA_none;
break;
case DSA_VC_scalar:
- if (!VD->getType()->isScalarType())
+ if (!D->getType()->isScalarType())
IterDA = DSA_none;
break;
case DSA_VC_all:
diff --git a/clang/test/OpenMP/parallel_default_variableCategory_codegen.cpp b/clang/test/OpenMP/parallel_default_variableCategory_codegen.cpp
new file mode 100644
index 0000000000000..e94d590933c85
--- /dev/null
+++ b/clang/test/OpenMP/parallel_default_variableCategory_codegen.cpp
@@ -0,0 +1,86 @@
+// RUN: %clangxx -Xclang -verify -Wno-vla -fopenmp -fopenmp-version=60 -x c++ -S -emit-llvm %s -o - | FileCheck %s
+// expected-no-diagnostics
+#ifndef HEADER
+#define HEADER
+
+int global;
+#define VECTOR_SIZE 4
+
+int main (int argc, char **argv) {
+ int i,n;
+ int x;
+
+ n = VECTOR_SIZE;
+
+ #pragma omp parallel masked firstprivate(x) num_threads(2)
+ {
+ int *xPtr = nullptr;
+ // scalar
+ #pragma omp task default(shared:scalar)
+ {
+ xPtr = &x;
+ }
+ #pragma omp taskwait
+
+ // pointer
+ #pragma omp task default(shared:pointer) shared(x)
+ {
+ xPtr = &x;
+ }
+ #pragma omp taskwait
+ }
+
+ int *aggregate[VECTOR_SIZE] = {0,0,0,0};
+
+ #pragma omp parallel masked num_threads(2)
+ {
+ // aggregate
+ #pragma omp task default(shared:aggregate)
+ for(i=0;i<n;i++) {
+ aggregate[i] = &x;
+ }
+ #pragma omp taskwait
+
+ #pragma omp task default(shared:aggregate) shared(x)
+ for(i=0;i<n;i++) {
+ aggregate[i] = &x;
+ }
+ #pragma omp taskwait
+
+ // all
+ #pragma omp task default(shared:all)
+ for(i=0;i<n;i++) {
+ aggregate[i] = &x;
+ }
+ #pragma omp taskwait
+ }
+}
+
+#endif
+
+// CHECK-LABEL: define {{.*}}main.omp_outlined{{.*}}
+// CHECK: store ptr null, ptr{{.*}}
+// CHECK-NEXT: {{.*}}getelementptr {{.*}}
+// CHECK-NEXT: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}getelementptr {{.*}}
+// CHECK-NEXT: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}call{{.*}}__kmpc_omp_task_alloc{{.*}}
+// CHECK: ret void
+//
+// CHECK: define {{.*}}main.omp_outlined{{.*}}
+// CHECK: {{.*}}getelementptr {{.*}}
+// CHECK-NEXT: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}call{{.*}}__kmpc_omp_task_alloc{{.*}}
+// CHECK: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}getelementptr {{.*}}
+// CHECK-NEXT: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}call{{.*}}__kmpc_omp_task_alloc{{.*}}
+// CHECK: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}getelementptr {{.*}}
+// CHECK-NEXT: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}getelementptr {{.*}}
+// CHECK-NEXT: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}getelementptr {{.*}}
+// CHECK-NEXT: store ptr {{.*}}
+// CHECK-NEXT: {{.*}}call{{.*}}__kmpc_omp_task_alloc{{.*}}
+// CHECK: ret void
|
🐧 Linux x64 Test Results
|
chandraghale
approved these changes
Nov 21, 2025
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chandraghale
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chandraghale
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fix has been already reviewed from PR165276 . Testcase LGTM.
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Same changes as in fix for #165276 except for changes in test case :
This is not needed as allocatable modifier is not applicable to the default clause in C/C++.
builders at Google, Reported by Prabhu Rajasekaran.