merge main into amd-staging (llvm#2915)

Author: z1_cciauto

clang/include/clang/Tooling/Transformer/Transformer.h

@@ -42,11 +42,6 @@ class TransformerImpl {
   virtual void
   onMatchImpl(const ast_matchers::MatchFinder::MatchResult &Result) = 0;
 };
-
-// FIXME: Use std::type_identity or backport when available.
-template <class T> struct type_identity {
-  using type = T;
-};
 } // namespace detail
 
 template <typename T> struct TransformerResult {
@@ -95,8 +90,8 @@ class Transformer : public ast_matchers::MatchFinder::MatchCallback {
   template <typename MetadataT>
   explicit Transformer(
       transformer::RewriteRuleWith<MetadataT> Rule,
-      std::function<void(llvm::Expected<TransformerResult<
-                             typename detail::type_identity<MetadataT>::type>>)>
+      std::function<void(
+          llvm::Expected<TransformerResult<llvm::type_identity_t<MetadataT>>>)>
           Consumer);
 
   /// N.B. Passes `this` pointer to `MatchFinder`.  So, this object should not
@@ -200,8 +195,8 @@ template <typename T> class WithMetadataImpl final : public TransformerImpl {
 template <typename MetadataT>
 Transformer::Transformer(
     transformer::RewriteRuleWith<MetadataT> Rule,
-    std::function<void(llvm::Expected<TransformerResult<
-                           typename detail::type_identity<MetadataT>::type>>)>
+    std::function<void(
+        llvm::Expected<TransformerResult<llvm::type_identity_t<MetadataT>>>)>
         Consumer)
     : Impl(std::make_unique<detail::WithMetadataImpl<MetadataT>>(
           std::move(Rule), std::move(Consumer))) {}

clang/lib/CIR/CodeGen/CIRGenExprComplex.cpp

@@ -43,6 +43,7 @@ class ComplexExprEmitter : public StmtVisitor<ComplexExprEmitter, mlir::Value> {
   mlir::Value VisitCallExpr(const CallExpr *e);
   mlir::Value VisitChooseExpr(ChooseExpr *e);
   mlir::Value VisitDeclRefExpr(DeclRefExpr *e);
+  mlir::Value VisitGenericSelectionExpr(GenericSelectionExpr *e);
   mlir::Value VisitImplicitCastExpr(ImplicitCastExpr *e);
   mlir::Value VisitInitListExpr(const InitListExpr *e);
   mlir::Value VisitImaginaryLiteral(const ImaginaryLiteral *il);
@@ -151,6 +152,11 @@ mlir::Value ComplexExprEmitter::VisitDeclRefExpr(DeclRefExpr *e) {
   return emitLoadOfLValue(e);
 }
 
+mlir::Value
+ComplexExprEmitter::VisitGenericSelectionExpr(GenericSelectionExpr *e) {
+  return Visit(e->getResultExpr());
+}
+
 mlir::Value ComplexExprEmitter::VisitImplicitCastExpr(ImplicitCastExpr *e) {
   // Unlike for scalars, we don't have to worry about function->ptr demotion
   // here.

clang/test/CIR/CodeGen/complex.cpp

@@ -442,3 +442,34 @@ bool foo19(double _Complex a, double _Complex b) {
 // OGCG: %[[CMP_IMAG:.*]] = fcmp oeq double %[[A_IMAG]], %[[B_IMAG]]
 // OGCG: %[[RESULT:.*]] = and i1 %[[CMP_REAL]], %[[CMP_IMAG]]
 
+void foo23(int _Complex a, int _Complex b) {
+  float _Complex f;
+  int _Complex c = _Generic(a, int _Complex: b, default: f);
+}
+
+// CIR: %[[COMPLEX_A:.*]] = cir.alloca !cir.complex<!s32i>, !cir.ptr<!cir.complex<!s32i>>, ["a", init]
+// CIR: %[[COMPLEX_B:.*]] = cir.alloca !cir.complex<!s32i>, !cir.ptr<!cir.complex<!s32i>>, ["b", init]
+// CIR: %[[COMPLEX_F:.*]] = cir.alloca !cir.complex<!cir.float>, !cir.ptr<!cir.complex<!cir.float>>, ["f"]
+// CIR: %[[RESULT:.*]] = cir.alloca !cir.complex<!s32i>, !cir.ptr<!cir.complex<!s32i>>, ["c", init]
+// CIR: %[[TMP:.*]] = cir.load{{.*}} %[[COMPLEX_B]] : !cir.ptr<!cir.complex<!s32i>>, !cir.complex<!s32i>
+// CIR: cir.store{{.*}} %[[TMP]], %[[RESULT]] : !cir.complex<!s32i>, !cir.ptr<!cir.complex<!s32i>>
+
+// LLVM: %[[COMPLEX_A:.*]] = alloca { i32, i32 }, i64 1, align 4
+// LLVM: %[[COMPLEX_B:.*]] = alloca { i32, i32 }, i64 1, align 4
+// LLVM: %[[COMPLEX_F:.*]] = alloca { float, float }, i64 1, align 4
+// LLVM: %[[RESULT:.*]] = alloca { i32, i32 }, i64 1, align 4
+// LLVM: %[[TMP:.*]] = load { i32, i32 }, ptr %[[COMPLEX_B]], align 4
+// LLVM: store { i32, i32 } %[[TMP]], ptr %[[RESULT]], align 4
+
+// OGCG: %[[COMPLEX_A:.*]] = alloca { i32, i32 }, align 4
+// OGCG: %[[COMPLEX_B:.*]] = alloca { i32, i32 }, align 4
+// OGCG: %[[COMPLEX_F:.*]] = alloca { float, float }, align 4
+// OGCG: %[[RESULT:.*]] = alloca { i32, i32 }, align 4
+// OGCG: %[[B_REAL_PTR:.*]] = getelementptr inbounds nuw { i32, i32 }, ptr %[[COMPLEX_B]], i32 0, i32 0
+// OGCG: %[[B_REAL:.*]] = load i32, ptr %[[B_REAL_PTR]], align 4
+// OGCG: %[[B_IMAG_PTR:.*]] = getelementptr inbounds nuw { i32, i32 }, ptr %[[COMPLEX_B]], i32 0, i32 1
+// OGCG: %[[B_IMAG:.*]] = load i32, ptr %[[B_IMAG_PTR]], align 4
+// OGCG: %[[RESULT_REAL_PT:.*]] = getelementptr inbounds nuw { i32, i32 }, ptr %[[RESULT]], i32 0, i32 0
+// OGCG: %[[RESULT_IMAG_PT:.*]] = getelementptr inbounds nuw { i32, i32 }, ptr %[[RESULT]], i32 0, i32 1
+// OGCG: store i32 %[[B_REAL]], ptr %[[RESULT_REAL_PT]], align 4
+// OGCG: store i32 %[[B_IMAG]], ptr %[[RESULT_IMAG_PT]], align 4

flang/lib/Optimizer/OpenACC/FIROpenACCTypeInterfaces.cpp

@@ -306,6 +306,10 @@ static bool isArrayLike(mlir::Type type) {
 }
 
 static bool isCompositeLike(mlir::Type type) {
+  // class(*) is not a composite type since it does not have a determined type.
+  if (fir::isUnlimitedPolymorphicType(type))
+    return false;
+
   return mlir::isa<fir::RecordType, fir::ClassType, mlir::TupleType>(type);
 }
 
@@ -320,8 +324,18 @@ template <>
 mlir::acc::VariableTypeCategory
 OpenACCMappableModel<fir::BaseBoxType>::getTypeCategory(mlir::Type type,
                                                         mlir::Value var) const {
+  // Class-type does not behave like a normal box because it does not hold an
+  // element type. Thus special handle it here.
+  if (mlir::isa<fir::ClassType>(type)) {
+    // class(*) is not a composite type since it does not have a determined
+    // type.
+    if (fir::isUnlimitedPolymorphicType(type))
+      return mlir::acc::VariableTypeCategory::uncategorized;
+    return mlir::acc::VariableTypeCategory::composite;
+  }
 
   mlir::Type eleTy = fir::dyn_cast_ptrOrBoxEleTy(type);
+  assert(eleTy && "expect to be able to unwrap the element type");
 
   // If the type enclosed by the box is a mappable type, then have it
   // provide the type category.
@@ -346,7 +360,7 @@ OpenACCMappableModel<fir::BaseBoxType>::getTypeCategory(mlir::Type type,
   return mlir::acc::VariableTypeCategory::nonscalar;
 }
 
-static mlir::TypedValue<mlir::acc::PointerLikeType>
+static mlir::Value
 getBaseRef(mlir::TypedValue<mlir::acc::PointerLikeType> varPtr) {
   // If there is no defining op - the unwrapped reference is the base one.
   mlir::Operation *op = varPtr.getDefiningOp();
@@ -372,7 +386,7 @@ getBaseRef(mlir::TypedValue<mlir::acc::PointerLikeType> varPtr) {
           })
           .Default([&](mlir::Operation *) { return varPtr; });
 
-  return mlir::cast<mlir::TypedValue<mlir::acc::PointerLikeType>>(baseRef);
+  return baseRef;
 }
 
 static mlir::acc::VariableTypeCategory
@@ -384,10 +398,17 @@ categorizePointee(mlir::Type pointer,
   // value would both be represented as !fir.ref<f32>. We do not want to treat
   // such a reference as a scalar. Thus unwrap interior pointer calculations.
   auto baseRef = getBaseRef(varPtr);
-  mlir::Type eleTy = baseRef.getType().getElementType();
 
-  if (auto mappableTy = mlir::dyn_cast<mlir::acc::MappableType>(eleTy))
-    return mappableTy.getTypeCategory(varPtr);
+  if (auto mappableTy =
+          mlir::dyn_cast<mlir::acc::MappableType>(baseRef.getType()))
+    return mappableTy.getTypeCategory(baseRef);
+
+  // It must be a pointer-like type since it is not a MappableType.
+  auto ptrLikeTy = mlir::cast<mlir::acc::PointerLikeType>(baseRef.getType());
+  mlir::Type eleTy = ptrLikeTy.getElementType();
+
+  if (auto mappableEleTy = mlir::dyn_cast<mlir::acc::MappableType>(eleTy))
+    return mappableEleTy.getTypeCategory(varPtr);
 
   if (isScalarLike(eleTy))
     return mlir::acc::VariableTypeCategory::scalar;
@@ -397,8 +418,12 @@ categorizePointee(mlir::Type pointer,
     return mlir::acc::VariableTypeCategory::composite;
   if (mlir::isa<fir::CharacterType, mlir::FunctionType>(eleTy))
     return mlir::acc::VariableTypeCategory::nonscalar;
+  // Assumed-type (type(*))does not have a determined type that can be
+  // categorized.
+  if (mlir::isa<mlir::NoneType>(eleTy))
+    return mlir::acc::VariableTypeCategory::uncategorized;
   // "pointers" - in the sense of raw address point-of-view, are considered
-  // scalars. However
+  // scalars.
   if (mlir::isa<fir::LLVMPointerType>(eleTy))
     return mlir::acc::VariableTypeCategory::scalar;
 

flang/lib/Optimizer/Transforms/CUFDeviceGlobal.cpp

@@ -113,8 +113,16 @@ class CUFDeviceGlobal : public fir::impl::CUFDeviceGlobalBase<CUFDeviceGlobal> {
       return signalPassFailure();
     mlir::SymbolTable gpuSymTable(gpuMod);
     for (auto globalOp : mod.getOps<fir::GlobalOp>()) {
-      if (cuf::isRegisteredDeviceGlobal(globalOp))
+      if (cuf::isRegisteredDeviceGlobal(globalOp)) {
         candidates.insert(globalOp);
+      } else if (globalOp.getConstant() &&
+                 mlir::isa<fir::SequenceType>(
+                     fir::unwrapRefType(globalOp.resultType()))) {
+        mlir::Attribute initAttr =
+            globalOp.getInitVal().value_or(mlir::Attribute());
+        if (initAttr && mlir::dyn_cast<mlir::DenseElementsAttr>(initAttr))
+          candidates.insert(globalOp);
+      }
     }
     for (auto globalOp : candidates) {
       auto globalName{globalOp.getSymbol().getValue()};

flang/lib/Semantics/resolve-names.cpp

@@ -7278,6 +7278,14 @@ bool DeclarationVisitor::PassesLocalityChecks(
           specName);
       return false;
     }
+    if (const DerivedTypeSpec *derived{type->AsDerived()}) { // F'2023 C1130
+      if (auto bad{FindAllocatableUltimateComponent(*derived)}) {
+        SayWithDecl(name, symbol,
+            "Derived type variable '%s' with ultimate ALLOCATABLE component '%s' not allowed in a %s locality-spec"_err_en_US,
+            bad.BuildResultDesignatorName(), specName);
+        return false;
+      }
+    }
   }
   if (symbol.attrs().test(Attr::ASYNCHRONOUS) && isReduce) { // F'2023 C1131
     SayWithDecl(name, symbol,

flang/test/Fir/CUDA/cuda-device-global.f90

@@ -11,3 +11,16 @@ module attributes {fir.defaultkind = "a1c4d8i4l4r4", fir.kindmap = "", gpu.conta
 
 // CHECK: gpu.module @cuda_device_mo
 // CHECK-NEXT: fir.global @_QMmtestsEn(dense<[3, 4, 5, 6, 7]> : tensor<5xi32>) {data_attr = #cuf.cuda<device>} : !fir.array<5xi32>
+
+// -----
+
+module attributes {fir.defaultkind = "a1c4d8i4l4r4", fir.kindmap = "", gpu.container_module} {
+  fir.global @_QMm1ECb(dense<[90, 100, 110]> : tensor<3xi32>) constant : !fir.array<3xi32>
+  fir.global @_QMm2ECc(dense<[100, 200, 300]> : tensor<3xi32>) constant : !fir.array<3xi32>
+}
+
+// CHECK: fir.global @_QMm1ECb
+// CHECK: fir.global @_QMm2ECc
+// CHECK: gpu.module @cuda_device_mod
+// CHECK-DAG: fir.global @_QMm2ECc
+// CHECK-DAG: fir.global @_QMm1ECb

flang/test/Fir/OpenACC/openacc-type-categories-class.f90

@@ -0,0 +1,46 @@
+! RUN: bbc -fopenacc -emit-hlfir %s -o - | fir-opt -pass-pipeline='builtin.module(test-fir-openacc-interfaces)' --mlir-disable-threading 2>&1 | FileCheck %s
+
+module mm
+  type, public :: polyty
+    real :: field
+  end type
+contains
+  subroutine init(this)
+    class(polyty), intent(inout) :: this
+    !$acc enter data copyin(this, this%field)
+  end subroutine
+  subroutine init_assumed_type(var)
+    type(*), intent(inout) :: var
+    !$acc enter data copyin(var)
+  end subroutine
+  subroutine init_unlimited(this)
+    class(*), intent(inout) :: this
+    !$acc enter data copyin(this)
+    select type(this)
+    type is(real)
+      !$acc enter data copyin(this)
+    class is(polyty)
+      !$acc enter data copyin(this, this%field)
+    end select
+  end subroutine
+end module
+
+! CHECK: Visiting: {{.*}} acc.copyin {{.*}} {name = "this", structured = false}
+! CHECK: Mappable: !fir.class<!fir.type<_QMmmTpolyty{field:f32}>>
+! CHECK: Type category: composite
+! CHECK: Visiting: {{.*}} acc.copyin {{.*}} {name = "this%field", structured = false}
+! CHECK: Pointer-like: !fir.ref<f32>
+! CHECK: Type category: composite
+
+! For unlimited polymorphic entities and assumed types - they effectively have
+! no declared type. Thus the type categorizer cannot categorize it.
+! CHECK: Visiting: {{.*}} = acc.copyin {{.*}} {name = "var", structured = false}
+! CHECK: Pointer-like: !fir.ref<none>
+! CHECK: Type category: uncategorized
+! CHECK: Visiting: {{.*}} = acc.copyin {{.*}} {name = "this", structured = false}
+! CHECK: Mappable: !fir.class<none>
+! CHECK: Type category: uncategorized
+
+! TODO: After using select type - the appropriate type category should be
+! possible. Add the rest of the test once OpenACC lowering correctly handles
+! unlimited polymorhic.

flang/test/Semantics/resolve55.f90

@@ -94,3 +94,23 @@ subroutine s8(arg)
   do concurrent(i=1:5) local(arg)
   end do
 end subroutine s8
+
+subroutine s9()
+  type l3
+    integer, allocatable :: a
+  end type
+  type l2
+    type(l3) :: l2_3
+  end type
+  type l1
+    type(l2) :: l1_2
+  end type
+  type(l1) :: v
+  integer sum
+
+  sum = 0
+!ERROR: Derived type variable 'v' with ultimate ALLOCATABLE component '%l1_2%l2_3%a' not allowed in a LOCAL_INIT locality-spec
+  do concurrent (i = 1:10) local_init(v)
+    sum = sum + i
+  end do
+end subroutine s9

flang/test/lib/OpenACC/CMakeLists.txt

@@ -2,22 +2,26 @@ add_flang_library(FIRTestOpenACCInterfaces
   TestOpenACCInterfaces.cpp
 
   DEPENDS
+  HLFIRDialect
   FIRDialect
   FIROpenACCSupport
   FIRSupport
 
   LINK_LIBS
+  HLFIRDialect
   FIRDialect
   FIROpenACCSupport
   FIRSupport
 
   MLIR_DEPS
+  MLIRDLTIDialect
   MLIRIR
   MLIROpenACCDialect
   MLIRPass
   MLIRSupport
 
   MLIR_LIBS
+  MLIRDLTIDialect
   MLIRIR
   MLIROpenACCDialect
   MLIRPass

flang/test/lib/OpenACC/TestOpenACCInterfaces.cpp

@@ -6,11 +6,15 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "mlir/Dialect/Arith/IR/Arith.h"
+#include "mlir/Dialect/DLTI/DLTI.h"
 #include "mlir/Dialect/OpenACC/OpenACC.h"
 #include "mlir/IR/Builders.h"
 #include "mlir/IR/BuiltinOps.h"
 #include "mlir/Pass/Pass.h"
 #include "mlir/Support/LLVM.h"
+#include "flang/Optimizer/Dialect/FIRDialect.h"
+#include "flang/Optimizer/HLFIR/HLFIRDialect.h"
 #include "flang/Optimizer/Support/DataLayout.h"
 
 using namespace mlir;
@@ -25,6 +29,11 @@ struct TestFIROpenACCInterfaces
   StringRef getDescription() const final {
     return "Test FIR implementation of the OpenACC interfaces.";
   }
+  void getDependentDialects(::mlir::DialectRegistry &registry) const override {
+    registry.insert<fir::FIROpsDialect, hlfir::hlfirDialect,
+        mlir::arith::ArithDialect, mlir::acc::OpenACCDialect,
+        mlir::DLTIDialect>();
+  }
   void runOnOperation() override {
     mlir::ModuleOp mod = getOperation();
     auto datalayout =

libc/src/wchar/wcpncpy.h

@@ -20,4 +20,4 @@ wchar_t *wcpncpy(wchar_t *__restrict ws1, const wchar_t *__restrict ws2,
 
 } // namespace LIBC_NAMESPACE_DECL
 
-#endif // LLVM_LIBC_SRC_WCHAR_WCPNsCPY_H
+#endif // LLVM_LIBC_SRC_WCHAR_WCPNCPY_H

libc/src/wchar/wcsspn.h

@@ -19,4 +19,4 @@ size_t wcsspn(const wchar_t *s1, const wchar_t *s2);
 
 } // namespace LIBC_NAMESPACE_DECL
 
-#endif // LLVM_LIBC_SRC_WCHAR_WCSCHR_H
+#endif // LLVM_LIBC_SRC_WCHAR_WCSSPN_H

lldb/docs/use/mcp.md

@@ -46,7 +46,7 @@ forward communication over stdio over the network connection.
 └──────────┘               └──────────┘               └──────────┘
 ```
 
-Configuration example for [Claude Code][https://modelcontextprotocol.io/quickstart/user]:
+Configuration example for [Claude Code](https://modelcontextprotocol.io/quickstart/user):
 
 ```json
 {
@@ -59,7 +59,7 @@ Configuration example for [Claude Code][https://modelcontextprotocol.io/quicksta
 }
 ```
 
-Configuration example for [Visual Studio Code][https://code.visualstudio.com/docs/copilot/chat/mcp-servers]:
+Configuration example for [Visual Studio Code](https://code.visualstudio.com/docs/copilot/chat/mcp-servers):
 
 ```json
 {

lldb/include/lldb/Core/Debugger.h

@@ -227,6 +227,8 @@ class Debugger : public std::enable_shared_from_this<Debugger>,
 
   const char *GetIOHandlerHelpPrologue();
 
+  void RefreshIOHandler();
+
   void ClearIOHandlers();
 
   bool EnableLog(llvm::StringRef channel,