llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Erich Keane (erichkeane)

<details>
<summary>Changes</summary>

This patch implements the lowering for the 'copy' clause for a function-local 
declare directive.

This is the first of the clauses that requires a 'cleanup' step, so it also 
includes some basic infrastructure for that. Fortunately there are only 8 
clauses (only 6 of which require cleanup), so the if/else chain won't get too 
long.

Also fortunately, we don't have to include any of the AST components, as it is 
possible to tell all the required details from the entry operation itself.

---

Patch is 24.49 KiB, truncated to 20.00 KiB below, full version: 
https://github.com/llvm/llvm-project/pull/169115.diff


3 Files Affected:

- (modified) clang/lib/CIR/CodeGen/CIRGenDeclOpenACC.cpp (+42-8) 
- (modified) clang/lib/CIR/CodeGen/CIRGenOpenACCClause.cpp (+7-3) 
- (added) clang/test/CIR/CodeGenOpenACC/declare-copy.cpp (+199) 


``````````diff
diff --git a/clang/lib/CIR/CodeGen/CIRGenDeclOpenACC.cpp 
b/clang/lib/CIR/CodeGen/CIRGenDeclOpenACC.cpp
index 551027bb1c8eb..84782e6802ab5 100644
--- a/clang/lib/CIR/CodeGen/CIRGenDeclOpenACC.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenDeclOpenACC.cpp
@@ -19,18 +19,52 @@ using namespace clang::CIRGen;
 
 namespace {
 struct OpenACCDeclareCleanup final : EHScopeStack::Cleanup {
+  SourceRange declareRange;
   mlir::acc::DeclareEnterOp enterOp;
 
-  OpenACCDeclareCleanup(mlir::acc::DeclareEnterOp enterOp) : enterOp(enterOp) 
{}
+  OpenACCDeclareCleanup(SourceRange declareRange,
+                        mlir::acc::DeclareEnterOp enterOp)
+      : declareRange(declareRange), enterOp(enterOp) {}
+
+  template <typename OutTy, typename InTy>
+  void createOutOp(CIRGenFunction &cgf, InTy inOp) {
+    auto outOp =
+        OutTy::create(cgf.getBuilder(), inOp.getLoc(), inOp, inOp.getVarPtr(),
+                      inOp.getStructured(), inOp.getImplicit(),
+                      inOp.getName() ? *inOp.getName() : "", inOp.getBounds());
+    outOp.setDataClause(inOp.getDataClause());
+    outOp.setModifiers(inOp.getModifiers());
+  }
 
   void emit(CIRGenFunction &cgf) override {
-    mlir::acc::DeclareExitOp::create(cgf.getBuilder(), enterOp.getLoc(),
-                                     enterOp, {});
+    auto exitOp = mlir::acc::DeclareExitOp::create(
+        cgf.getBuilder(), enterOp.getLoc(), enterOp, {});
 
-    // TODO(OpenACC): Some clauses require that we add info about them to the
-    // DeclareExitOp.  However, we don't have any of those implemented yet, so
-    // we should add infrastructure here to do that once we have one
-    // implemented.
+    // Some data clauses need to be referenced in 'exit', AND need to have an
+    // operation after the exit.  Copy these from the enter operation.
+    for (mlir::Value val : enterOp.getDataClauseOperands()) {
+      if (auto copyin = val.getDefiningOp<mlir::acc::CopyinOp>()) {
+        switch (copyin.getDataClause()) {
+        default:
+          cgf.cgm.errorNYI(declareRange,
+                           "OpenACC local declare clause copyin cleanup");
+          break;
+        case mlir::acc::DataClause::acc_copy:
+          createOutOp<mlir::acc::CopyoutOp>(cgf, copyin);
+          break;
+        }
+      } else if (val.getDefiningOp<mlir::acc::DeclareLinkOp>()) {
+        // Link has no exit clauses, and shouldn't be copied.
+        continue;
+      } else if (val.getDefiningOp<mlir::acc::DevicePtrOp>()) {
+        // DevicePtr has no exit clauses, and shouldn't be copied.
+        continue;
+      } else {
+        cgf.cgm.errorNYI(declareRange, "OpenACC local declare clause cleanup");
+        continue;
+      }
+      exitOp.getDataClauseOperandsMutable().append(val);
+    }
   }
 };
 } // namespace
@@ -45,7 +79,7 @@ void CIRGenFunction::emitOpenACCDeclare(const 
OpenACCDeclareDecl &d) {
                      d.clauses());
 
   ehStack.pushCleanup<OpenACCDeclareCleanup>(CleanupKind::NormalCleanup,
-                                             enterOp);
+                                             d.getSourceRange(), enterOp);
 }
 
 void CIRGenFunction::emitOpenACCRoutine(const OpenACCRoutineDecl &d) {
diff --git a/clang/lib/CIR/CodeGen/CIRGenOpenACCClause.cpp 
b/clang/lib/CIR/CodeGen/CIRGenOpenACCClause.cpp
index c5c6bcd0153a4..621af2344209f 100644
--- a/clang/lib/CIR/CodeGen/CIRGenOpenACCClause.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenOpenACCClause.cpp
@@ -800,12 +800,16 @@ class OpenACCClauseCIREmitter final
             var, mlir::acc::DataClause::acc_copy, clause.getModifierList(),
             /*structured=*/true,
             /*implicit=*/false);
+    } else if constexpr (isOneOfTypes<OpTy, mlir::acc::DeclareEnterOp>) {
+      for (const Expr *var : clause.getVarList())
+        addDataOperand<mlir::acc::CopyinOp>(
+            var, mlir::acc::DataClause::acc_copy, clause.getModifierList(),
+            /*structured=*/true,
+            /*implicit=*/false);
     } else if constexpr (isCombinedType<OpTy>) {
       applyToComputeOp(clause);
     } else {
-      // TODO: When we've implemented this for everything, switch this to an
-      // unreachable. declare construct remains.
-      return clauseNotImplemented(clause);
+      llvm_unreachable("Unknown construct kind in VisitCopyClause");
     }
   }
 
diff --git a/clang/test/CIR/CodeGenOpenACC/declare-copy.cpp 
b/clang/test/CIR/CodeGenOpenACC/declare-copy.cpp
new file mode 100644
index 0000000000000..cc1fdbc6b0351
--- /dev/null
+++ b/clang/test/CIR/CodeGenOpenACC/declare-copy.cpp
@@ -0,0 +1,199 @@
+// RUN: %clang_cc1 -fopenacc -Wno-openacc-self-if-potential-conflict -emit-cir 
-fclangir %s -o - | FileCheck %s
+
+struct HasSideEffects {
+  HasSideEffects();
+  ~HasSideEffects();
+};
+
+// TODO: OpenACC: Implement 'global', NS lowering.
+
+struct Struct {
+  static const HasSideEffects StaticMemHSE;
+  static const HasSideEffects StaticMemHSEArr[5];
+  static const int StaticMemInt;
+
+  // TODO: OpenACC: Implement static-local lowering.
+
+  void MemFunc1(HasSideEffects ArgHSE, int ArgInt, HasSideEffects *ArgHSEPtr) {
+    // CHECK: cir.func {{.*}}MemFunc1{{.*}}(%{{.*}}: 
!cir.ptr<!rec_Struct>{{.*}}, %[[ARG_HSE:.*]]: !rec_HasSideEffects{{.*}}, 
%[[ARG_INT:.*]]: !s32i {{.*}}, %[[ARG_HSE_PTR:.*]]: 
!cir.ptr<!rec_HasSideEffects>{{.*}})
+    // CHECK-NEXT: cir.alloca{{.*}}["this"
+    // CHECK-NEXT: %[[ARG_HSE_ALLOCA:.*]] = cir.alloca 
!rec_HasSideEffects{{.*}}["ArgHSE"
+    // CHECK-NEXT: %[[ARG_INT_ALLOCA:.*]] = cir.alloca !s32i{{.*}}["ArgInt
+    // CHECK-NEXT: %[[ARG_HSE_PTR_ALLOCA:.*]] = cir.alloca 
!cir.ptr<!rec_HasSideEffects>{{.*}}["ArgHSEPtr"
+    // CHECK-NEXT: %[[LOC_HSE_ALLOCA:.*]] = cir.alloca 
!rec_HasSideEffects{{.*}}["LocalHSE
+    // CHECK-NEXT: %[[LOC_HSE_ARR_ALLOCA:.*]] = cir.alloca 
!cir.array<!rec_HasSideEffects x 5>{{.*}}["LocalHSEArr
+    // CHECK-NEXT: %[[LOC_INT_ALLOCA:.*]] = cir.alloca !s32i{{.*}}["LocalInt
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.load
+
+    HasSideEffects LocalHSE;
+    // CHECK-NEXT: cir.call{{.*}} : (!cir.ptr<!rec_HasSideEffects>) -> ()
+    HasSideEffects LocalHSEArr[5];
+    int LocalInt;
+
+#pragma acc declare copy(always:ArgHSE, ArgInt, LocalHSE, LocalInt, 
ArgHSEPtr[1:1], LocalHSEArr[1:1])
+    // CHECK: %[[ARG_HSE_COPYIN:.*]] = acc.copyin varPtr(%[[ARG_HSE_ALLOCA]] : 
!cir.ptr<!rec_HasSideEffects>) -> !cir.ptr<!rec_HasSideEffects> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier always>, name 
= "ArgHSE"}
+    // CHECK-NEXT: %[[ARG_INT_COPYIN:.*]] = acc.copyin 
varPtr(%[[ARG_INT_ALLOCA]] : !cir.ptr<!s32i>) -> !cir.ptr<!s32i> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier always>, name 
= "ArgInt"} 
+    // CHECK-NEXT: %[[LOC_HSE_COPYIN:.*]] = acc.copyin 
varPtr(%[[LOC_HSE_ALLOCA]] : !cir.ptr<!rec_HasSideEffects>) -> 
!cir.ptr<!rec_HasSideEffects> {dataClause = #acc<data_clause acc_copy>, 
modifiers = #acc<data_clause_modifier always>, name = "LocalHSE"} 
+    // CHECK-NEXT: %[[LOC_INT_COPYIN:.*]] = acc.copyin 
varPtr(%[[LOC_INT_ALLOCA]] : !cir.ptr<!s32i>) -> !cir.ptr<!s32i> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier always>, name 
= "LocalInt"}
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[LB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[UB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[IDX:.*]] = arith.constant 0 : i64
+    // CHECK-NEXT: %[[STRIDE:.*]] = arith.constant 1 : i64
+    // CHECK-NEXT: %[[BOUND1:.*]] = acc.bounds lowerbound(%[[LB]] : si32) 
extent(%[[UB]] : si32) stride(%[[STRIDE]] : i64) startIdx(%[[IDX]] : i64)
+    // CHECK-NEXT: %[[ARG_HSE_PTR_COPYIN:.*]] = acc.copyin 
varPtr(%[[ARG_HSE_PTR_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_HasSideEffects>>) 
bounds(%[[BOUND1]]) -> !cir.ptr<!cir.ptr<!rec_HasSideEffects>> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier always>, name 
= "ArgHSEPtr[1:1]"}
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[LB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[UB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[IDX:.*]] = arith.constant 0 : i64
+    // CHECK-NEXT: %[[STRIDE:.*]] = arith.constant 1 : i64
+    // CHECK-NEXT: %[[BOUND2:.*]] = acc.bounds lowerbound(%[[LB]] : si32) 
extent(%[[UB]] : si32) stride(%[[STRIDE]] : i64) startIdx(%[[IDX]] : i64)
+    // CHECK-NEXT: %[[LOC_HSE_ARR_COPYIN:.*]] = acc.copyin 
varPtr(%[[LOC_HSE_ARR_ALLOCA]] : !cir.ptr<!cir.array<!rec_HasSideEffects x 5>>) 
bounds(%[[BOUND2]]) -> !cir.ptr<!cir.array<!rec_HasSideEffects x 5>> 
{dataClause = #acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier 
always>, name = "LocalHSEArr[1:1]"}
+    // CHECK-NEXT: %[[ENTER:.*]] = acc.declare_enter 
dataOperands(%[[ARG_HSE_COPYIN]], %[[ARG_INT_COPYIN]], %[[LOC_HSE_COPYIN]], 
%[[LOC_INT_COPYIN]], %[[ARG_HSE_PTR_COPYIN]], %[[LOC_HSE_ARR_COPYIN]] : 
!cir.ptr<!rec_HasSideEffects>, !cir.ptr<!s32i>, !cir.ptr<!rec_HasSideEffects>, 
!cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!rec_HasSideEffects>>, 
!cir.ptr<!cir.array<!rec_HasSideEffects x 5>>)
+    //
+    // CHECK-NEXT: acc.declare_exit token(%[[ENTER]]) 
dataOperands(%[[ARG_HSE_COPYIN]], %[[ARG_INT_COPYIN]], %[[LOC_HSE_COPYIN]], 
%[[LOC_INT_COPYIN]], %[[ARG_HSE_PTR_COPYIN]], %[[LOC_HSE_ARR_COPYIN]] : 
!cir.ptr<!rec_HasSideEffects>, !cir.ptr<!s32i>, !cir.ptr<!rec_HasSideEffects>, 
!cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!rec_HasSideEffects>>, 
!cir.ptr<!cir.array<!rec_HasSideEffects x 5>>)
+    // CHECK-NEXT: acc.copyout accPtr(%[[ARG_HSE_COPYIN]] : 
!cir.ptr<!rec_HasSideEffects>) to varPtr(%[[ARG_HSE_ALLOCA]] : 
!cir.ptr<!rec_HasSideEffects>) {dataClause = #acc<data_clause acc_copy>, 
modifiers = #acc<data_clause_modifier always>, name = "ArgHSE"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[ARG_INT_COPYIN]] : !cir.ptr<!s32i>) 
to varPtr(%[[ARG_INT_ALLOCA]] : !cir.ptr<!s32i>) {dataClause = #acc<data_clause 
acc_copy>, modifiers = #acc<data_clause_modifier always>, name = "ArgInt"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[LOC_HSE_COPYIN]] : 
!cir.ptr<!rec_HasSideEffects>) to varPtr(%[[LOC_HSE_ALLOCA]] : 
!cir.ptr<!rec_HasSideEffects>) {dataClause = #acc<data_clause acc_copy>, 
modifiers = #acc<data_clause_modifier always>, name = "LocalHSE"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[LOC_INT_COPYIN]] : !cir.ptr<!s32i>) 
to varPtr(%[[LOC_INT_ALLOCA]] : !cir.ptr<!s32i>) {dataClause = #acc<data_clause 
acc_copy>, modifiers = #acc<data_clause_modifier always>, name = "LocalInt"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[ARG_HSE_PTR_COPYIN]] : 
!cir.ptr<!cir.ptr<!rec_HasSideEffects>>) bounds(%[[BOUND1]]) to 
varPtr(%[[ARG_HSE_PTR_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_HasSideEffects>>) 
{dataClause = #acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier 
always>, name = "ArgHSEPtr[1:1]"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[LOC_HSE_ARR_COPYIN]] : 
!cir.ptr<!cir.array<!rec_HasSideEffects x 5>>) bounds(%[[BOUND2]]) to 
varPtr(%[[LOC_HSE_ARR_ALLOCA]] : !cir.ptr<!cir.array<!rec_HasSideEffects x 5>>) 
{dataClause = #acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier 
always>, name = "LocalHSEArr[1:1]"}
+  }
+  void MemFunc2(HasSideEffects ArgHSE, int ArgInt, HasSideEffects *ArgHSEPtr);
+};
+
+void use() {
+  Struct s;
+  s.MemFunc1(HasSideEffects{}, 0, nullptr);
+}
+
+void Struct::MemFunc2(HasSideEffects ArgHSE, int ArgInt, HasSideEffects 
*ArgHSEPtr) {
+    // CHECK: cir.func {{.*}}MemFunc2{{.*}}(%{{.*}}: 
!cir.ptr<!rec_Struct>{{.*}}, %[[ARG_HSE:.*]]: !rec_HasSideEffects{{.*}}, 
%[[ARG_INT:.*]]: !s32i {{.*}}, %[[ARG_HSE_PTR:.*]]: 
!cir.ptr<!rec_HasSideEffects>{{.*}})
+    // CHECK-NEXT: cir.alloca{{.*}}["this"
+    // CHECK-NEXT: %[[ARG_HSE_ALLOCA:.*]] = cir.alloca 
!rec_HasSideEffects{{.*}}["ArgHSE"
+    // CHECK-NEXT: %[[ARG_INT_ALLOCA:.*]] = cir.alloca !s32i{{.*}}["ArgInt
+    // CHECK-NEXT: %[[ARG_HSE_PTR_ALLOCA:.*]] = cir.alloca 
!cir.ptr<!rec_HasSideEffects>{{.*}}["ArgHSEPtr"
+    // CHECK-NEXT: %[[LOC_HSE_ALLOCA:.*]] = cir.alloca 
!rec_HasSideEffects{{.*}}["LocalHSE
+    // CHECK-NEXT: %[[LOC_HSE_ARR_ALLOCA:.*]] = cir.alloca 
!cir.array<!rec_HasSideEffects x 5>{{.*}}["LocalHSEArr
+    // CHECK-NEXT: %[[LOC_INT_ALLOCA:.*]] = cir.alloca !s32i{{.*}}["LocalInt
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.load
+    HasSideEffects LocalHSE;
+    // CHECK-NEXT: cir.call{{.*}} : (!cir.ptr<!rec_HasSideEffects>) -> ()
+    HasSideEffects LocalHSEArr[5];
+    // CHECK: do {
+    // CHECK: } while {
+    // CHECK: }
+    int LocalInt;
+#pragma acc declare copy(alwaysin:ArgHSE, ArgInt, ArgHSEPtr[1:1])
+    // CHECK: %[[ARG_HSE_COPYIN:.*]] = acc.copyin varPtr(%[[ARG_HSE_ALLOCA]] : 
!cir.ptr<!rec_HasSideEffects>) -> !cir.ptr<!rec_HasSideEffects> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier alwaysin>, 
name = "ArgHSE"}
+    // CHECK-NEXT: %[[ARG_INT_COPYIN:.*]] = acc.copyin 
varPtr(%[[ARG_INT_ALLOCA]] : !cir.ptr<!s32i>) -> !cir.ptr<!s32i> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier alwaysin>, 
name = "ArgInt"} 
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[LB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[UB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[IDX:.*]] = arith.constant 0 : i64
+    // CHECK-NEXT: %[[STRIDE:.*]] = arith.constant 1 : i64
+    // CHECK-NEXT: %[[BOUND1:.*]] = acc.bounds lowerbound(%[[LB]] : si32) 
extent(%[[UB]] : si32) stride(%[[STRIDE]] : i64) startIdx(%[[IDX]] : i64)
+    // CHECK-NEXT: %[[ARG_HSE_PTR_COPYIN:.*]] = acc.copyin 
varPtr(%[[ARG_HSE_PTR_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_HasSideEffects>>) 
bounds(%[[BOUND1]]) -> !cir.ptr<!cir.ptr<!rec_HasSideEffects>> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier alwaysin>, 
name = "ArgHSEPtr[1:1]"}
+    // CHECK-NEXT: %[[ENTER1:.*]] = acc.declare_enter 
dataOperands(%[[ARG_HSE_COPYIN]], %[[ARG_INT_COPYIN]], %[[ARG_HSE_PTR_COPYIN]] 
: !cir.ptr<!rec_HasSideEffects>, !cir.ptr<!s32i>, 
!cir.ptr<!cir.ptr<!rec_HasSideEffects>>)
+
+#pragma acc declare copy(alwaysout:LocalHSE, LocalInt, LocalHSEArr[1:1])
+    // CHECK-NEXT: %[[LOC_HSE_COPYIN:.*]] = acc.copyin 
varPtr(%[[LOC_HSE_ALLOCA]] : !cir.ptr<!rec_HasSideEffects>) -> 
!cir.ptr<!rec_HasSideEffects> {dataClause = #acc<data_clause acc_copy>, 
modifiers = #acc<data_clause_modifier alwaysout>, name = "LocalHSE"} 
+    // CHECK-NEXT: %[[LOC_INT_COPYIN:.*]] = acc.copyin 
varPtr(%[[LOC_INT_ALLOCA]] : !cir.ptr<!s32i>) -> !cir.ptr<!s32i> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier alwaysout>, 
name = "LocalInt"}
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[LB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[UB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[IDX:.*]] = arith.constant 0 : i64
+    // CHECK-NEXT: %[[STRIDE:.*]] = arith.constant 1 : i64
+    // CHECK-NEXT: %[[BOUND2:.*]] = acc.bounds lowerbound(%[[LB]] : si32) 
extent(%[[UB]] : si32) stride(%[[STRIDE]] : i64) startIdx(%[[IDX]] : i64)
+    // CHECK-NEXT: %[[LOC_HSE_ARR_COPYIN:.*]] = acc.copyin 
varPtr(%[[LOC_HSE_ARR_ALLOCA]] : !cir.ptr<!cir.array<!rec_HasSideEffects x 5>>) 
bounds(%[[BOUND2]]) -> !cir.ptr<!cir.array<!rec_HasSideEffects x 5>> 
{dataClause = #acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier 
alwaysout>, name = "LocalHSEArr[1:1]"}
+    // CHECK-NEXT: %[[ENTER2:.*]] = acc.declare_enter 
dataOperands(%[[LOC_HSE_COPYIN]], %[[LOC_INT_COPYIN]], %[[LOC_HSE_ARR_COPYIN]] 
: !cir.ptr<!rec_HasSideEffects>, !cir.ptr<!s32i>, 
!cir.ptr<!cir.array<!rec_HasSideEffects x 5>>)
+
+    // CHECK-NEXT: acc.declare_exit token(%[[ENTER2]]) 
dataOperands(%[[LOC_HSE_COPYIN]], %[[LOC_INT_COPYIN]], %[[LOC_HSE_ARR_COPYIN]] 
: !cir.ptr<!rec_HasSideEffects>, !cir.ptr<!s32i>, 
!cir.ptr<!cir.array<!rec_HasSideEffects x 5>>)
+    // CHECK-NEXT: acc.copyout accPtr(%[[LOC_HSE_COPYIN]] : 
!cir.ptr<!rec_HasSideEffects>) to varPtr(%[[LOC_HSE_ALLOCA]] : 
!cir.ptr<!rec_HasSideEffects>) {dataClause = #acc<data_clause acc_copy>, 
modifiers = #acc<data_clause_modifier alwaysout>, name = "LocalHSE"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[LOC_INT_COPYIN]] : !cir.ptr<!s32i>) 
to varPtr(%[[LOC_INT_ALLOCA]] : !cir.ptr<!s32i>) {dataClause = #acc<data_clause 
acc_copy>, modifiers = #acc<data_clause_modifier alwaysout>, name = "LocalInt"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[LOC_HSE_ARR_COPYIN]] : 
!cir.ptr<!cir.array<!rec_HasSideEffects x 5>>) bounds(%[[BOUND2]]) to 
varPtr(%[[LOC_HSE_ARR_ALLOCA]] : !cir.ptr<!cir.array<!rec_HasSideEffects x 5>>) 
{dataClause = #acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier 
alwaysout>, name = "LocalHSEArr[1:1]"}
+    //
+    // CHECK-NEXT: acc.declare_exit token(%[[ENTER1]]) 
dataOperands(%[[ARG_HSE_COPYIN]], %[[ARG_INT_COPYIN]], %[[ARG_HSE_PTR_COPYIN]] 
: !cir.ptr<!rec_HasSideEffects>, !cir.ptr<!s32i>, 
!cir.ptr<!cir.ptr<!rec_HasSideEffects>>)
+    // CHECK-NEXT: acc.copyout accPtr(%[[ARG_HSE_COPYIN]] : 
!cir.ptr<!rec_HasSideEffects>) to varPtr(%[[ARG_HSE_ALLOCA]] : 
!cir.ptr<!rec_HasSideEffects>) {dataClause = #acc<data_clause acc_copy>, 
modifiers = #acc<data_clause_modifier alwaysin>, name = "ArgHSE"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[ARG_INT_COPYIN]] : !cir.ptr<!s32i>) 
to varPtr(%[[ARG_INT_ALLOCA]] : !cir.ptr<!s32i>) {dataClause = #acc<data_clause 
acc_copy>, modifiers = #acc<data_clause_modifier alwaysin>, name = "ArgInt"}
+    // CHECK-NEXT: acc.copyout accPtr(%[[ARG_HSE_PTR_COPYIN]] : 
!cir.ptr<!cir.ptr<!rec_HasSideEffects>>) bounds(%[[BOUND1]]) to 
varPtr(%[[ARG_HSE_PTR_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_HasSideEffects>>) 
{dataClause = #acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier 
alwaysin>, name = "ArgHSEPtr[1:1]"}
+}
+
+extern "C" void do_thing();
+
+extern "C" void NormalFunc(HasSideEffects ArgHSE, int ArgInt, HasSideEffects 
*ArgHSEPtr) {
+    // CHECK: cir.func {{.*}}NormalFunc(%[[ARG_HSE:.*]]: 
!rec_HasSideEffects{{.*}}, %[[ARG_INT:.*]]: !s32i {{.*}}, %[[ARG_HSE_PTR:.*]]: 
!cir.ptr<!rec_HasSideEffects>{{.*}})
+    // CHECK-NEXT: %[[ARG_HSE_ALLOCA:.*]] = cir.alloca 
!rec_HasSideEffects{{.*}}["ArgHSE"
+    // CHECK-NEXT: %[[ARG_INT_ALLOCA:.*]] = cir.alloca !s32i{{.*}}["ArgInt
+    // CHECK-NEXT: %[[ARG_HSE_PTR_ALLOCA:.*]] = cir.alloca 
!cir.ptr<!rec_HasSideEffects>{{.*}}["ArgHSEPtr"
+    // CHECK-NEXT: %[[LOC_HSE_ALLOCA:.*]] = cir.alloca 
!rec_HasSideEffects{{.*}}["LocalHSE
+    // CHECK-NEXT: %[[LOC_HSE_ARR_ALLOCA:.*]] = cir.alloca 
!cir.array<!rec_HasSideEffects x 5>{{.*}}["LocalHSEArr
+    // CHECK-NEXT: %[[LOC_INT_ALLOCA:.*]] = cir.alloca !s32i{{.*}}["LocalInt
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    // CHECK-NEXT: cir.store
+    HasSideEffects LocalHSE;
+    // CHECK-NEXT: cir.call{{.*}} : (!cir.ptr<!rec_HasSideEffects>) -> ()
+    HasSideEffects LocalHSEArr[5];
+    // CHECK: do {
+    // CHECK: } while {
+    // CHECK: }
+    int LocalInt;
+#pragma acc declare copy(capture:ArgHSE, ArgInt, ArgHSEPtr[1:1])
+    // CHECK: %[[ARG_HSE_COPYIN:.*]] = acc.copyin varPtr(%[[ARG_HSE_ALLOCA]] : 
!cir.ptr<!rec_HasSideEffects>) -> !cir.ptr<!rec_HasSideEffects> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier capture>, 
name = "ArgHSE"}
+    // CHECK-NEXT: %[[ARG_INT_COPYIN:.*]] = acc.copyin 
varPtr(%[[ARG_INT_ALLOCA]] : !cir.ptr<!s32i>) -> !cir.ptr<!s32i> {dataClause = 
#acc<data_clause acc_copy>, modifiers = #acc<data_clause_modifier capture>, 
name = "ArgInt"} 
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[LB:.*]] = builtin.unrealized_conversion_cast %[[ONE]] : 
!s32i to si32
+    // CHECK-NEXT: %[[ONE:.*]] = cir.const #cir.int<1> : !s32i
+    // CHECK-NEXT: %[[UB:.*]] = builtin.unrealized_convers...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/169115
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