[flang-commits] [flang] [flang][OpenMP] Reland Fix copyprivate semantic checks (#95799) (PR #101009)

via flang-commits flang-commits at lists.llvm.org
Mon Jul 29 06:24:06 PDT 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-flang-semantics

@llvm/pr-subscribers-flang-openmp

Author: Leandro Lupori (luporl)

<details>
<summary>Changes</summary>

There are some cases in which variables used in OpenMP constructs
are predetermined as private. The semantic checks for copyprivate
were not handling those cases.

Besides that, shared symbols were not being properly represented
in some cases. When there was no previously declared private
(implicit) symbol, no new association symbols, representing
shared ones, were being created.

These symbols must always be inserted in constructs that may
privatize the original symbol: parallel, teams and task
generating constructs.

Fixes #<!-- -->87214 and #<!-- -->86907


---

Patch is 33.16 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/101009.diff


17 Files Affected:

- (modified) flang/include/flang/Semantics/tools.h (+1) 
- (modified) flang/lib/Semantics/resolve-directives.cpp (+100-50) 
- (added) flang/test/Lower/OpenMP/associate.f90 (+38) 
- (added) flang/test/Semantics/OpenMP/copyprivate04.f90 (+112) 
- (modified) flang/test/Semantics/OpenMP/do05-positivecase.f90 (+2-2) 
- (modified) flang/test/Semantics/OpenMP/do20.f90 (+1-1) 
- (modified) flang/test/Semantics/OpenMP/implicit-dsa.f90 (+7-7) 
- (added) flang/test/Semantics/OpenMP/parallel-shared05.f90 (+17) 
- (modified) flang/test/Semantics/OpenMP/reduction08.f90 (+5-5) 
- (modified) flang/test/Semantics/OpenMP/reduction09.f90 (+4-4) 
- (modified) flang/test/Semantics/OpenMP/symbol01.f90 (+2-2) 
- (modified) flang/test/Semantics/OpenMP/symbol02.f90 (+2-2) 
- (modified) flang/test/Semantics/OpenMP/symbol03.f90 (+2-2) 
- (modified) flang/test/Semantics/OpenMP/symbol05.f90 (+2-2) 
- (modified) flang/test/Semantics/OpenMP/symbol07.f90 (+1-1) 
- (modified) flang/test/Semantics/OpenMP/symbol08.f90 (+18-18) 
- (modified) flang/test/Semantics/OpenMP/symbol09.f90 (+1-1) 


``````````diff
diff --git a/flang/include/flang/Semantics/tools.h b/flang/include/flang/Semantics/tools.h
index 0fcba3131fad1..f21ef28618142 100644
--- a/flang/include/flang/Semantics/tools.h
+++ b/flang/include/flang/Semantics/tools.h
@@ -87,6 +87,7 @@ bool IsIntrinsicConcat(
 bool IsGenericDefinedOp(const Symbol &);
 bool IsDefinedOperator(SourceName);
 std::string MakeOpName(SourceName);
+bool IsCommonBlockContaining(const Symbol &, const Symbol &);
 
 // Returns true if maybeAncestor exists and is a proper ancestor of a
 // descendent scope (or symbol owner).  Will be false, unlike Scope::Contains(),
diff --git a/flang/lib/Semantics/resolve-directives.cpp b/flang/lib/Semantics/resolve-directives.cpp
index fb32ce6837fbf..5153d668b505b 100644
--- a/flang/lib/Semantics/resolve-directives.cpp
+++ b/flang/lib/Semantics/resolve-directives.cpp
@@ -19,6 +19,7 @@
 #include "flang/Parser/parse-tree.h"
 #include "flang/Parser/tools.h"
 #include "flang/Semantics/expression.h"
+#include "flang/Semantics/tools.h"
 #include <list>
 #include <map>
 #include <sstream>
@@ -729,7 +730,6 @@ class OmpAttributeVisitor : DirectiveAttributeVisitor<llvm::omp::Directive> {
   void CheckNameInAllocateStmt(const parser::CharBlock &source,
       const parser::Name &ompObject, const parser::AllocateStmt &allocate);
 
-  bool HasSymbolInEnclosingScope(const Symbol &, Scope &);
   std::int64_t ordCollapseLevel{0};
 
   void AddOmpRequiresToScope(Scope &, WithOmpDeclarative::RequiresFlags,
@@ -2035,6 +2035,12 @@ void OmpAttributeVisitor::Post(const parser::OpenMPAllocatorsConstruct &x) {
 // and adjust the symbol for each Name if necessary
 void OmpAttributeVisitor::Post(const parser::Name &name) {
   auto *symbol{name.symbol};
+  auto IsPrivatizable = [](const Symbol *sym) {
+    return !sym->owner().IsDerivedType() && !IsProcedure(*sym) &&
+        !IsNamedConstant(*sym) &&
+        !sym->detailsIf<semantics::AssocEntityDetails>();
+  };
+
   if (symbol && !dirContext_.empty() && GetContext().withinConstruct) {
     // Exclude construct-names
     if (auto *details{symbol->detailsIf<semantics::MiscDetails>()}) {
@@ -2042,8 +2048,7 @@ void OmpAttributeVisitor::Post(const parser::Name &name) {
         return;
       }
     }
-    if (!symbol->owner().IsDerivedType() && !IsProcedure(*symbol) &&
-        !IsObjectWithDSA(*symbol) && !IsNamedConstant(*symbol)) {
+    if (IsPrivatizable(symbol) && !IsObjectWithDSA(*symbol)) {
       // TODO: create a separate function to go through the rules for
       //       predetermined, explicitly determined, and implicitly
       //       determined data-sharing attributes (2.15.1.1).
@@ -2068,6 +2073,9 @@ void OmpAttributeVisitor::Post(const parser::Name &name) {
       if (found->test(semantics::Symbol::Flag::OmpThreadprivate))
         return;
     }
+    if (!IsPrivatizable(symbol)) {
+      return;
+    }
 
     // Implicitly determined DSAs
     // OMP 5.2 5.1.1 - Variables Referenced in a Construct
@@ -2085,16 +2093,22 @@ void OmpAttributeVisitor::Post(const parser::Name &name) {
         }
       }
 
-      // When handling each implicit rule, either a new private symbol is
-      // declared or the last declared symbol is used.
-      // In the latter case, it's necessary to insert a new symbol in the scope
-      // being processed, associated with the last declared symbol.
-      // This captures the fact that, although we are using the last declared
-      // symbol, its DSA could be different in this scope.
-      // Also, because of how symbols are collected in lowering, not inserting
-      // a new symbol in this scope could lead to the conclusion that the
-      // symbol was declared in this construct, which would result in wrong
-      // privatization code being generated.
+      // When handling each implicit rule for a given symbol, one of the
+      // following 3 actions may be taken:
+      // 1. Declare a new private symbol.
+      // 2. Create a new association symbol with no flags, that will represent
+      //    a shared symbol in the current scope. Note that symbols without
+      //    any private flags are considered as shared.
+      // 3. Use the last declared private symbol, by inserting a new symbol
+      //    in the scope being processed, associated with it.
+      //    If no private symbol was declared previously, then no association
+      //    is needed and the symbol from the enclosing scope will be
+      //    inherited by the current one.
+      //
+      // Because of how symbols are collected in lowering, not inserting a new
+      // symbol in the last case could lead to the conclusion that a symbol
+      // from an enclosing construct was declared in the current construct,
+      // which would result in wrong privatization code being generated.
       // Consider the following example:
       //
       // !$omp parallel default(private)              ! p1
@@ -2107,48 +2121,56 @@ void OmpAttributeVisitor::Post(const parser::Name &name) {
       // (p2), it would use the x symbol definition from the enclosing scope.
       // Then, when p2's default symbols were collected in lowering, the x
       // symbol from the outer parallel construct (p1) would be collected, as
-      // it would have the private flag set (note that symbols that don't have
-      // any private flag are considered as shared).
+      // it would have the private flag set.
       // This would make x appear to be defined in p2, causing it to be
       // privatized in p2 and its privatization in p1 to be skipped.
-      auto declNewSymbol = [&](Symbol::Flag flag) {
+      auto makePrivateSymbol = [&](Symbol::Flag flag) {
         Symbol *hostSymbol =
             lastDeclSymbol ? lastDeclSymbol : &symbol->GetUltimate();
         lastDeclSymbol = DeclarePrivateAccessEntity(
             *hostSymbol, flag, context_.FindScope(dirContext.directiveSource));
         return lastDeclSymbol;
       };
+      auto makeSharedSymbol = [&]() {
+        Symbol *hostSymbol =
+            lastDeclSymbol ? lastDeclSymbol : &symbol->GetUltimate();
+        MakeAssocSymbol(symbol->name(), *hostSymbol,
+            context_.FindScope(dirContext.directiveSource));
+      };
       auto useLastDeclSymbol = [&]() {
         if (lastDeclSymbol)
           MakeAssocSymbol(symbol->name(), *lastDeclSymbol,
               context_.FindScope(dirContext.directiveSource));
       };
 
+      bool taskGenDir = llvm::omp::taskGeneratingSet.test(dirContext.directive);
+      bool targetDir = llvm::omp::allTargetSet.test(dirContext.directive);
+      bool parallelDir = llvm::omp::allParallelSet.test(dirContext.directive);
+      bool teamsDir = llvm::omp::allTeamsSet.test(dirContext.directive);
+
       if (dsa.has_value()) {
-        useLastDeclSymbol();
+        if (dsa.value() == Symbol::Flag::OmpShared &&
+            (parallelDir || taskGenDir || teamsDir))
+          makeSharedSymbol();
+        // Private symbols will have been declared already.
         prevDSA = dsa;
         continue;
       }
 
-      bool taskGenDir = llvm::omp::taskGeneratingSet.test(dirContext.directive);
-      bool targetDir = llvm::omp::allTargetSet.test(dirContext.directive);
-      bool parallelDir = llvm::omp::allParallelSet.test(dirContext.directive);
-
       if (dirContext.defaultDSA == Symbol::Flag::OmpPrivate ||
           dirContext.defaultDSA == Symbol::Flag::OmpFirstPrivate ||
           dirContext.defaultDSA == Symbol::Flag::OmpShared) {
         // 1) default
         // Allowed only with parallel, teams and task generating constructs.
-        assert(parallelDir || taskGenDir ||
-            llvm::omp::allTeamsSet.test(dirContext.directive));
+        assert(parallelDir || taskGenDir || teamsDir);
         if (dirContext.defaultDSA != Symbol::Flag::OmpShared)
-          declNewSymbol(dirContext.defaultDSA);
+          makePrivateSymbol(dirContext.defaultDSA);
         else
-          useLastDeclSymbol();
+          makeSharedSymbol();
         dsa = dirContext.defaultDSA;
       } else if (parallelDir) {
         // 2) parallel -> shared
-        useLastDeclSymbol();
+        makeSharedSymbol();
         dsa = Symbol::Flag::OmpShared;
       } else if (!taskGenDir && !targetDir) {
         // 3) enclosing context
@@ -2161,12 +2183,12 @@ void OmpAttributeVisitor::Post(const parser::Name &name) {
         // TODO 5) dummy arg in orphaned taskgen construct -> firstprivate
         if (prevDSA == Symbol::Flag::OmpShared) {
           // 6) shared in enclosing context -> shared
-          useLastDeclSymbol();
+          makeSharedSymbol();
           dsa = Symbol::Flag::OmpShared;
         } else {
           // 7) firstprivate
           dsa = Symbol::Flag::OmpFirstPrivate;
-          declNewSymbol(*dsa)->set(Symbol::Flag::OmpImplicit);
+          makePrivateSymbol(*dsa)->set(Symbol::Flag::OmpImplicit);
         }
       }
       prevDSA = dsa;
@@ -2570,20 +2592,59 @@ void ResolveOmpTopLevelParts(
   });
 }
 
-void OmpAttributeVisitor::CheckDataCopyingClause(
-    const parser::Name &name, const Symbol &symbol, Symbol::Flag ompFlag) {
-  const auto *checkSymbol{&symbol};
+static bool IsSymbolInCommonBlock(const Symbol &symbol) {
+  // TODO Improve the performance of this predicate function.
+  //      Going through all symbols sequentially, in all common blocks, can be
+  //      slow when there are many symbols. A possible optimization is to add
+  //      an OmpInCommonBlock flag to Symbol, to make it possible to quickly
+  //      test if a given symbol is in a common block.
+  for (const auto &cb : symbol.owner().commonBlocks()) {
+    if (IsCommonBlockContaining(cb.second.get(), symbol)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+static bool IsSymbolThreadprivate(const Symbol &symbol) {
   if (const auto *details{symbol.detailsIf<HostAssocDetails>()}) {
-    checkSymbol = &details->symbol();
+    return details->symbol().test(Symbol::Flag::OmpThreadprivate);
   }
+  return symbol.test(Symbol::Flag::OmpThreadprivate);
+}
 
+static bool IsSymbolPrivate(const Symbol &symbol) {
+  if (symbol.test(Symbol::Flag::OmpPrivate) ||
+      symbol.test(Symbol::Flag::OmpFirstPrivate)) {
+    return true;
+  }
+  // A symbol that has not gone through constructs that may privatize the
+  // original symbol may be predetermined as private.
+  // (OMP 5.2 5.1.1 - Variables Referenced in a Construct)
+  if (symbol == symbol.GetUltimate()) {
+    switch (symbol.owner().kind()) {
+    case Scope::Kind::MainProgram:
+    case Scope::Kind::Subprogram:
+    case Scope::Kind::BlockConstruct:
+      return !symbol.attrs().test(Attr::SAVE) &&
+          !symbol.attrs().test(Attr::PARAMETER) && !IsAssumedShape(symbol) &&
+          !IsSymbolInCommonBlock(symbol);
+    default:
+      return false;
+    }
+  }
+  return false;
+}
+
+void OmpAttributeVisitor::CheckDataCopyingClause(
+    const parser::Name &name, const Symbol &symbol, Symbol::Flag ompFlag) {
   if (ompFlag == Symbol::Flag::OmpCopyIn) {
     // List of items/objects that can appear in a 'copyin' clause must be
     // 'threadprivate'
-    if (!checkSymbol->test(Symbol::Flag::OmpThreadprivate)) {
+    if (!IsSymbolThreadprivate(symbol)) {
       context_.Say(name.source,
           "Non-THREADPRIVATE object '%s' in COPYIN clause"_err_en_US,
-          checkSymbol->name());
+          symbol.name());
     }
   } else if (ompFlag == Symbol::Flag::OmpCopyPrivate &&
       GetContext().directive == llvm::omp::Directive::OMPD_single) {
@@ -2596,18 +2657,13 @@ void OmpAttributeVisitor::CheckDataCopyingClause(
           "COPYPRIVATE variable '%s' may not appear on a PRIVATE or "
           "FIRSTPRIVATE clause on a SINGLE construct"_err_en_US,
           symbol.name());
-    } else {
+    } else if (!IsSymbolThreadprivate(symbol) && !IsSymbolPrivate(symbol)) {
       // List of items/objects that can appear in a 'copyprivate' clause must be
       // either 'private' or 'threadprivate' in enclosing context.
-      if (!checkSymbol->test(Symbol::Flag::OmpThreadprivate) &&
-          !(HasSymbolInEnclosingScope(symbol, currScope()) &&
-              (symbol.test(Symbol::Flag::OmpPrivate) ||
-                  symbol.test(Symbol::Flag::OmpFirstPrivate)))) {
-        context_.Say(name.source,
-            "COPYPRIVATE variable '%s' is not PRIVATE or THREADPRIVATE in "
-            "outer context"_err_en_US,
-            symbol.name());
-      }
+      context_.Say(name.source,
+          "COPYPRIVATE variable '%s' is not PRIVATE or THREADPRIVATE in "
+          "outer context"_err_en_US,
+          symbol.name());
     }
   }
 }
@@ -2677,12 +2733,6 @@ void OmpAttributeVisitor::CheckLabelContext(const parser::CharBlock source,
   }
 }
 
-bool OmpAttributeVisitor::HasSymbolInEnclosingScope(
-    const Symbol &symbol, Scope &scope) {
-  const auto symbols{scope.parent().GetSymbols()};
-  return llvm::is_contained(symbols, symbol);
-}
-
 // Goes through the names in an OmpObjectList and checks if each name appears
 // in the given allocate statement
 void OmpAttributeVisitor::CheckAllNamesInAllocateStmt(
diff --git a/flang/test/Lower/OpenMP/associate.f90 b/flang/test/Lower/OpenMP/associate.f90
new file mode 100644
index 0000000000000..c6890f0954a7f
--- /dev/null
+++ b/flang/test/Lower/OpenMP/associate.f90
@@ -0,0 +1,38 @@
+! Check that constructs with associate and variables that have implicitly
+! determined DSAs are lowered properly.
+! RUN: %flang_fc1 -emit-hlfir -fopenmp -o - %s 2>&1 | FileCheck %s
+
+!CHECK-LABEL: func @_QPtest_parallel_assoc
+!CHECK:         omp.parallel {
+!CHECK-NOT:       hlfir.declare {{.*}} {uniq_name = "_QFtest_parallel_assocEa"}
+!CHECK-NOT:       hlfir.declare {{.*}} {uniq_name = "_QFtest_parallel_assocEb"}
+!CHECK:           omp.wsloop {
+!CHECK:           }
+!CHECK:         }
+!CHECK:         omp.parallel {
+!CHECK-NOT:       hlfir.declare {{.*}} {uniq_name = "_QFtest_parallel_assocEb"}
+!CHECK:           omp.wsloop {
+!CHECK:           }
+!CHECK:         }
+subroutine test_parallel_assoc()
+  integer, parameter :: l = 3
+  integer :: a(l)
+  integer :: i
+  a = 1
+
+  !$omp parallel do
+  do i = 1,l
+    associate (b=>a)
+      b(i) = b(i) * 2
+    end associate
+  enddo
+  !$omp end parallel do
+
+  !$omp parallel do default(private)
+  do i = 1,l
+    associate (b=>a)
+      b(i) = b(i) * 2
+    end associate
+  enddo
+  !$omp end parallel do
+end subroutine
diff --git a/flang/test/Semantics/OpenMP/copyprivate04.f90 b/flang/test/Semantics/OpenMP/copyprivate04.f90
new file mode 100644
index 0000000000000..291cf1103fb27
--- /dev/null
+++ b/flang/test/Semantics/OpenMP/copyprivate04.f90
@@ -0,0 +1,112 @@
+! RUN: %python %S/../test_errors.py %s %flang_fc1 -fopenmp
+! OpenMP Version 5.2
+! 5.1.1 - Variables Referenced in a Construct
+! Copyprivate must accept variables that are predetermined as private.
+
+module m1
+  integer :: m
+end module
+
+program omp_copyprivate
+  use m1
+  implicit none
+  integer :: i
+  integer, save :: j
+  integer :: k
+  common /c/ k
+  real, parameter :: pi = 3.14
+  integer :: a1(10)
+
+  ! Local variables are private.
+  !$omp single
+    i = 123
+  !$omp end single copyprivate(i)
+  !$omp single
+  !$omp end single copyprivate(a1)
+
+  ! Variables with the SAVE attribute are not private.
+  !$omp single
+  !ERROR: COPYPRIVATE variable 'j' is not PRIVATE or THREADPRIVATE in outer context
+  !$omp end single copyprivate(j)
+
+  ! Common block variables are not private.
+  !$omp single
+  !ERROR: COPYPRIVATE variable 'k' is not PRIVATE or THREADPRIVATE in outer context
+  !$omp end single copyprivate(/c/)
+  !$omp single
+  !ERROR: COPYPRIVATE variable 'k' is not PRIVATE or THREADPRIVATE in outer context
+  !$omp end single copyprivate(k)
+
+  ! Module variables are not private.
+  !$omp single
+  !ERROR: COPYPRIVATE variable 'm' is not PRIVATE or THREADPRIVATE in outer context
+  !$omp end single copyprivate(m)
+
+  ! Parallel can make a variable shared.
+  !$omp parallel
+    !$omp single
+      i = 456
+    !ERROR: COPYPRIVATE variable 'i' is not PRIVATE or THREADPRIVATE in outer context
+    !$omp end single copyprivate(i)
+    call sub(j, a1)
+  !$omp end parallel
+
+  !$omp parallel shared(i)
+    !$omp single
+      i = 456
+    !ERROR: COPYPRIVATE variable 'i' is not PRIVATE or THREADPRIVATE in outer context
+    !$omp end single copyprivate(i)
+  !$omp end parallel
+
+  !FIXME: an error should be emitted in this case.
+  !       copyprivate(i) should be considered as a reference to i and a new
+  !       symbol should be created in `parallel` scope, for this case to be
+  !       handled properly.
+  !$omp parallel
+    !$omp single
+    !$omp end single copyprivate(i)
+  !$omp end parallel
+
+  ! Named constants are shared.
+  !$omp single
+  !ERROR: COPYPRIVATE variable 'pi' is not PRIVATE or THREADPRIVATE in outer context
+  !$omp end single copyprivate(pi)
+
+  !$omp parallel do
+  do i = 1, 10
+    !$omp parallel
+    !$omp single
+      j = i
+    !ERROR: COPYPRIVATE variable 'i' is not PRIVATE or THREADPRIVATE in outer context
+    !$omp end single copyprivate(i)
+    !$omp end parallel
+  end do
+  !$omp end parallel do
+
+contains
+  subroutine sub(s1, a)
+    integer :: s1
+    integer :: a(:)
+
+    ! Dummy argument.
+    !$omp single
+    !$omp end single copyprivate(s1)
+
+    ! Assumed shape arrays are shared.
+    !$omp single
+    !ERROR: COPYPRIVATE variable 'a' is not PRIVATE or THREADPRIVATE in outer context
+    !$omp end single copyprivate(a)
+  end subroutine
+
+  integer function fun(f1)
+    integer :: f1
+
+    ! Dummy argument.
+    !$omp single
+    !$omp end single copyprivate(f1)
+
+    ! Function result is private.
+    !$omp single
+    !$omp end single copyprivate(fun)
+  end function
+end program
diff --git a/flang/test/Semantics/OpenMP/do05-positivecase.f90 b/flang/test/Semantics/OpenMP/do05-positivecase.f90
index 4e02235f58a1a..3b512a5b4f25e 100644
--- a/flang/test/Semantics/OpenMP/do05-positivecase.f90
+++ b/flang/test/Semantics/OpenMP/do05-positivecase.f90
@@ -20,12 +20,12 @@ program omp_do
   !$omp parallel  default(shared)
   !$omp do
   !DEF: /omp_do/OtherConstruct2/OtherConstruct1/i (OmpPrivate, OmpPreDetermined) HostAssoc INTEGER(4)
-  !REF: /omp_do/n
+  !DEF: /omp_do/OtherConstruct2/n HostAssoc INTEGER(4)
   do i=1,n
     !$omp parallel
     !$omp single
     !DEF: /work EXTERNAL (Subroutine) ProcEntity
-    !REF: /omp_do/OtherConstruct2/OtherConstruct1/i
+    !DEF: /omp_do/OtherConstruct2/OtherConstruct1/OtherConstruct1/i HostAssoc INTEGER(4)
     call work(i, 1)
     !$omp end single
     !$omp end parallel
diff --git a/flang/test/Semantics/OpenMP/do20.f90 b/flang/test/Semantics/OpenMP/do20.f90
index 915d01e69edd7..0cafae76b86b0 100644
--- a/flang/test/Semantics/OpenMP/do20.f90
+++ b/flang/test/Semantics/OpenMP/do20.f90
@@ -10,7 +10,7 @@ subroutine shared_iv
 
   !$omp parallel shared(i)
     !$omp single
-      !REF: /shared_iv/i
+      !DEF: /shared_iv/OtherConstruct1/i HostAssoc INTEGER(4)
       do i = 0, 1
       end do
     !$omp end single
diff --git a/flang/test/Semantics/OpenMP/implicit-dsa.f90 b/flang/test/Semantics/OpenMP/implicit-dsa.f90
index 92d2421d06f97..2abe3a0e16d62 100644
--- a/flang/test/Semantics/OpenMP/implicit-dsa.f90
+++ b/flang/test/Semantics/OpenMP/implicit-dsa.f90
@@ -15,14 +15,14 @@ subroutine implicit_dsa_test1
   !$omp task private(y) shared(z)
     !DEF: /implicit_dsa_test1/OtherConstruct1/x (OmpFirstPrivate, OmpImplicit) HostAssoc INTEGER(4)
     !DEF: /implicit_dsa_test1/OtherConstruct1/y (OmpPrivate) HostAssoc INTEGER(4)
-    !REF: /implicit_dsa_test1/z
+    !DEF: /implicit_dsa_test1/OtherConstruct1/z HostAssoc INTEGER(4)
     x = y + z
   !$omp end task
 
   !$omp task default(shared)
-    !REF: /implicit_dsa_test1/x
-    !REF: /implicit_dsa_test1/y
-    !REF: /implicit_dsa_test1/z
+    !DEF: /implicit_dsa_test1/OtherConstruct2/x HostAssoc INTEGER(4)
+    !DEF: /implicit_dsa_test1/OtherConstruct2/y HostAssoc INTEGER(4)
+    !DEF: /implicit_dsa_test1/OtherConstruct2/z HostAssoc INTEGER(4)
     x = y + z
   !$omp end task
 
@@ -61,16 +61,16 @@ subroutine implicit_dsa_test3
 
   !$omp parallel
     !$omp task
-      !REF: /implicit_dsa_test3/x
+      !DEF: /implicit_dsa_test3/OtherConstruct1/OtherConstruct1/x HostAssoc INTEGER(4)
       x = 1
-      !REF: /implicit_dsa_test3/y
+      !DEF: /implicit_dsa_test3/OtherConstruct1/OtherConstruct1/y HostAssoc INTEGER(4)
       y = 1
     !$omp end task
 
     !$omp task firstp...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/101009


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