//===--- OperationKinds.def - Operations Database ---------------*- C++ -*-===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // // This file enumerates the different kinds of operations that can be // performed by various expressions. // //===----------------------------------------------------------------------===// // /// @file OperationKinds.def /// /// In this file, each of the C/C++ operations is enumerated CAST_OPERATION, /// BINARY_OPERATION or UNARY_OPERATION macro, each of which can be specified by /// the code including this file. /// /// Macros had one or two arguments: /// /// Name: The name of the operation. Name (prefixed with CK_, UO_ or BO_) will /// be the name of the corresponding enumerator (see OperationsKinds.h). /// /// Spelling: A string that provides a canonical spelling for the operation. #ifndef CAST_OPERATION # define CAST_OPERATION(Name) #endif #ifndef BINARY_OPERATION # define BINARY_OPERATION(Name, Spelling) #endif #ifndef UNARY_OPERATION # define UNARY_OPERATION(Name, Spelling) #endif //===- Cast Operations ---------------------------------------------------===// /// CK_Dependent - A conversion which cannot yet be analyzed because /// either the expression or target type is dependent. These are /// created only for explicit casts; dependent ASTs aren't required /// to even approximately type-check. /// (T*) malloc(sizeof(T)) /// reinterpret_cast<intptr_t>(A<T>::alloc()); CAST_OPERATION(Dependent) /// CK_BitCast - A conversion which causes a bit pattern of one type /// to be reinterpreted as a bit pattern of another type. Generally /// the operands must have equivalent size and unrelated types. /// /// The pointer conversion char* -> int* is a bitcast. A conversion /// from any pointer type to a C pointer type is a bitcast unless /// it's actually BaseToDerived or DerivedToBase. A conversion to a /// block pointer or ObjC pointer type is a bitcast only if the /// operand has the same type kind; otherwise, it's one of the /// specialized casts below. /// /// Vector coercions are bitcasts. CAST_OPERATION(BitCast) /// CK_LValueBitCast - A conversion which reinterprets the address of /// an l-value as an l-value of a different kind. Used for /// reinterpret_casts of l-value expressions to reference types. /// bool b; reinterpret_cast<char&>(b) = 'a'; CAST_OPERATION(LValueBitCast) /// CK_LValueToRValueBitCast - A conversion that causes us to reinterpret the /// object representation of an lvalue as an rvalue. Created by /// __builtin_bit_cast. CAST_OPERATION(LValueToRValueBitCast) /// CK_LValueToRValue - A conversion which causes the extraction of /// an r-value from the operand gl-value. The result of an r-value /// conversion is always unqualified. CAST_OPERATION(LValueToRValue) /// CK_NoOp - A conversion which does not affect the type other than /// (possibly) adding qualifiers or removing noexcept. /// int -> int /// char** -> const char * const * /// int[1] -> int[] /// void () noexcept -> void () CAST_OPERATION(NoOp) /// CK_BaseToDerived - A conversion from a C++ class pointer/reference /// to a derived class pointer/reference. /// B *b = static_cast<B*>(a); CAST_OPERATION(BaseToDerived) /// CK_DerivedToBase - A conversion from a C++ class pointer /// to a base class pointer. /// A *a = new B(); CAST_OPERATION(DerivedToBase) /// CK_UncheckedDerivedToBase - A conversion from a C++ class /// pointer/reference to a base class that can assume that the /// derived pointer is not null. /// const A &a = B(); /// b->method_from_a(); CAST_OPERATION(UncheckedDerivedToBase) /// CK_Dynamic - A C++ dynamic_cast. CAST_OPERATION(Dynamic) /// CK_ToUnion - The GCC cast-to-union extension. /// int -> union { int x; float y; } /// float -> union { int x; float y; } CAST_OPERATION(ToUnion) /// CK_ArrayToPointerDecay - Array to pointer decay. /// int[10] -> int* /// char[5][6] -> char(*)[6] CAST_OPERATION(ArrayToPointerDecay) /// CK_FunctionToPointerDecay - Function to pointer decay. /// void(int) -> void(*)(int) CAST_OPERATION(FunctionToPointerDecay) /// CK_NullToPointer - Null pointer constant to pointer, ObjC /// pointer, or block pointer. /// (void*) 0 /// void (^block)() = 0; CAST_OPERATION(NullToPointer) /// CK_NullToMemberPointer - Null pointer constant to member pointer. /// int A::*mptr = 0; /// int (A::*fptr)(int) = nullptr; CAST_OPERATION(NullToMemberPointer) /// CK_BaseToDerivedMemberPointer - Member pointer in base class to /// member pointer in derived class. /// int B::*mptr = &A::member; CAST_OPERATION(BaseToDerivedMemberPointer) /// CK_DerivedToBaseMemberPointer - Member pointer in derived class to /// member pointer in base class. /// int A::*mptr = static_cast<int A::*>(&B::member); CAST_OPERATION(DerivedToBaseMemberPointer) /// CK_MemberPointerToBoolean - Member pointer to boolean. A check /// against the null member pointer. CAST_OPERATION(MemberPointerToBoolean) /// CK_ReinterpretMemberPointer - Reinterpret a member pointer as a /// different kind of member pointer. C++ forbids this from /// crossing between function and object types, but otherwise does /// not restrict it. However, the only operation that is permitted /// on a "punned" member pointer is casting it back to the original /// type, which is required to be a lossless operation (although /// many ABIs do not guarantee this on all possible intermediate types). CAST_OPERATION(ReinterpretMemberPointer) /// CK_UserDefinedConversion - Conversion using a user defined type /// conversion function. /// struct A { operator int(); }; int i = int(A()); CAST_OPERATION(UserDefinedConversion) /// CK_ConstructorConversion - Conversion by constructor. /// struct A { A(int); }; A a = A(10); CAST_OPERATION(ConstructorConversion) /// CK_IntegralToPointer - Integral to pointer. A special kind of /// reinterpreting conversion. Applies to normal, ObjC, and block /// pointers. /// (char*) 0x1001aab0 /// reinterpret_cast<int*>(0) CAST_OPERATION(IntegralToPointer) /// CK_PointerToIntegral - Pointer to integral. A special kind of /// reinterpreting conversion. Applies to normal, ObjC, and block /// pointers. /// (intptr_t) "help!" CAST_OPERATION(PointerToIntegral) /// CK_PointerToBoolean - Pointer to boolean conversion. A check /// against null. Applies to normal, ObjC, and block pointers. CAST_OPERATION(PointerToBoolean) /// CK_ToVoid - Cast to void, discarding the computed value. /// (void) malloc(2048) CAST_OPERATION(ToVoid) /// CK_MatrixCast - A cast between matrix types of the same dimensions. CAST_OPERATION(MatrixCast) /// CK_VectorSplat - A conversion from an arithmetic type to a /// vector of that element type. Fills all elements ("splats") with /// the source value. /// __attribute__((ext_vector_type(4))) int v = 5; CAST_OPERATION(VectorSplat) /// CK_IntegralCast - A cast between integral types (other than to /// boolean). Variously a bitcast, a truncation, a sign-extension, /// or a zero-extension. /// long l = 5; /// (unsigned) i CAST_OPERATION(IntegralCast) /// CK_IntegralToBoolean - Integral to boolean. A check against zero. /// (bool) i CAST_OPERATION(IntegralToBoolean) /// CK_IntegralToFloating - Integral to floating point. /// float f = i; CAST_OPERATION(IntegralToFloating) /// CK_FloatingToFixedPoint - Floating to fixed point. /// _Accum a = f; CAST_OPERATION(FloatingToFixedPoint) /// CK_FixedPointToFloating - Fixed point to floating. /// (float) 2.5k CAST_OPERATION(FixedPointToFloating) /// CK_FixedPointCast - Fixed point to fixed point. /// (_Accum) 0.5r CAST_OPERATION(FixedPointCast) /// CK_FixedPointToIntegral - Fixed point to integral. /// (int) 2.0k CAST_OPERATION(FixedPointToIntegral) /// CK_IntegralToFixedPoint - Integral to a fixed point. /// (_Accum) 2 CAST_OPERATION(IntegralToFixedPoint) /// CK_FixedPointToBoolean - Fixed point to boolean. /// (bool) 0.5r CAST_OPERATION(FixedPointToBoolean) /// CK_FloatingToIntegral - Floating point to integral. Rounds /// towards zero, discarding any fractional component. /// (int) f CAST_OPERATION(FloatingToIntegral) /// CK_FloatingToBoolean - Floating point to boolean. /// (bool) f CAST_OPERATION(FloatingToBoolean) // CK_BooleanToSignedIntegral - Convert a boolean to -1 or 0 for true and // false, respectively. CAST_OPERATION(BooleanToSignedIntegral) /// CK_FloatingCast - Casting between floating types of different size. /// (double) f /// (float) ld CAST_OPERATION(FloatingCast) /// CK_CPointerToObjCPointerCast - Casting a C pointer kind to an /// Objective-C pointer. CAST_OPERATION(CPointerToObjCPointerCast) /// CK_BlockPointerToObjCPointerCast - Casting a block pointer to an /// ObjC pointer. CAST_OPERATION(BlockPointerToObjCPointerCast) /// CK_AnyPointerToBlockPointerCast - Casting any non-block pointer /// to a block pointer. Block-to-block casts are bitcasts. CAST_OPERATION(AnyPointerToBlockPointerCast) /// Converting between two Objective-C object types, which /// can occur when performing reference binding to an Objective-C /// object. CAST_OPERATION(ObjCObjectLValueCast) /// A conversion of a floating point real to a floating point /// complex of the original type. Injects the value as the real /// component with a zero imaginary component. /// float -> _Complex float CAST_OPERATION(FloatingRealToComplex) /// Converts a floating point complex to floating point real /// of the source's element type. Just discards the imaginary /// component. /// _Complex long double -> long double CAST_OPERATION(FloatingComplexToReal) /// Converts a floating point complex to bool by comparing /// against 0+0i. CAST_OPERATION(FloatingComplexToBoolean) /// Converts between different floating point complex types. /// _Complex float -> _Complex double CAST_OPERATION(FloatingComplexCast) /// Converts from a floating complex to an integral complex. /// _Complex float -> _Complex int CAST_OPERATION(FloatingComplexToIntegralComplex) /// Converts from an integral real to an integral complex /// whose element type matches the source. Injects the value as /// the real component with a zero imaginary component. /// long -> _Complex long CAST_OPERATION(IntegralRealToComplex) /// Converts an integral complex to an integral real of the /// source's element type by discarding the imaginary component. /// _Complex short -> short CAST_OPERATION(IntegralComplexToReal) /// Converts an integral complex to bool by comparing against /// 0+0i. CAST_OPERATION(IntegralComplexToBoolean) /// Converts between different integral complex types. /// _Complex char -> _Complex long long /// _Complex unsigned int -> _Complex signed int CAST_OPERATION(IntegralComplexCast) /// Converts from an integral complex to a floating complex. /// _Complex unsigned -> _Complex float CAST_OPERATION(IntegralComplexToFloatingComplex) /// [ARC] Produces a retainable object pointer so that it may /// be consumed, e.g. by being passed to a consuming parameter. /// Calls objc_retain. CAST_OPERATION(ARCProduceObject) /// [ARC] Consumes a retainable object pointer that has just /// been produced, e.g. as the return value of a retaining call. /// Enters a cleanup to call objc_release at some indefinite time. CAST_OPERATION(ARCConsumeObject) /// [ARC] Reclaim a retainable object pointer object that may /// have been produced and autoreleased as part of a function return /// sequence. CAST_OPERATION(ARCReclaimReturnedObject) /// [ARC] Causes a value of block type to be copied to the /// heap, if it is not already there. A number of other operations /// in ARC cause blocks to be copied; this is for cases where that /// would not otherwise be guaranteed, such as when casting to a /// non-block pointer type. CAST_OPERATION(ARCExtendBlockObject) /// Converts from _Atomic(T) to T. CAST_OPERATION(AtomicToNonAtomic) /// Converts from T to _Atomic(T). CAST_OPERATION(NonAtomicToAtomic) /// Causes a block literal to by copied to the heap and then /// autoreleased. /// /// This particular cast kind is used for the conversion from a C++11 /// lambda expression to a block pointer. CAST_OPERATION(CopyAndAutoreleaseBlockObject) // Convert a builtin function to a function pointer; only allowed in the // callee of a call expression. CAST_OPERATION(BuiltinFnToFnPtr) // Convert a zero value for OpenCL opaque types initialization (event_t, // queue_t, etc.) CAST_OPERATION(ZeroToOCLOpaqueType) // Convert a pointer to a different address space. CAST_OPERATION(AddressSpaceConversion) // Convert an integer initializer to an OpenCL sampler. CAST_OPERATION(IntToOCLSampler) // Truncate a vector type by dropping elements from the end (HLSL only). CAST_OPERATION(HLSLVectorTruncation) // Non-decaying array RValue cast (HLSL only). CAST_OPERATION(HLSLArrayRValue) //===- Binary Operations -------------------------------------------------===// // Operators listed in order of precedence. // Note that additions to this should also update the StmtVisitor class, // BinaryOperator::getOverloadedOperator and CXBinaryOperatorKind enum. // [C++ 5.5] Pointer-to-member operators. BINARY_OPERATION(PtrMemD, ".*") BINARY_OPERATION(PtrMemI, "->*") // [C99 6.5.5] Multiplicative operators. BINARY_OPERATION(Mul, "*") BINARY_OPERATION(Div, "/") BINARY_OPERATION(Rem, "%") // [C99 6.5.6] Additive operators. BINARY_OPERATION(Add, "+") BINARY_OPERATION(Sub, "-") // [C99 6.5.7] Bitwise shift operators. BINARY_OPERATION(Shl, "<<") BINARY_OPERATION(Shr, ">>") // C++20 [expr.spaceship] Three-way comparison operator. BINARY_OPERATION(Cmp, "<=>") // [C99 6.5.8] Relational operators. BINARY_OPERATION(LT, "<") BINARY_OPERATION(GT, ">") BINARY_OPERATION(LE, "<=") BINARY_OPERATION(GE, ">=") // [C99 6.5.9] Equality operators. BINARY_OPERATION(EQ, "==") BINARY_OPERATION(NE, "!=") // [C99 6.5.10] Bitwise AND operator. BINARY_OPERATION(And, "&") // [C99 6.5.11] Bitwise XOR operator. BINARY_OPERATION(Xor, "^") // [C99 6.5.12] Bitwise OR operator. BINARY_OPERATION(Or, "|") // [C99 6.5.13] Logical AND operator. BINARY_OPERATION(LAnd, "&&") // [C99 6.5.14] Logical OR operator. BINARY_OPERATION(LOr, "||") // [C99 6.5.16] Assignment operators. BINARY_OPERATION(Assign, "=") BINARY_OPERATION(MulAssign, "*=") BINARY_OPERATION(DivAssign, "/=") BINARY_OPERATION(RemAssign, "%=") BINARY_OPERATION(AddAssign, "+=") BINARY_OPERATION(SubAssign, "-=") BINARY_OPERATION(ShlAssign, "<<=") BINARY_OPERATION(ShrAssign, ">>=") BINARY_OPERATION(AndAssign, "&=") BINARY_OPERATION(XorAssign, "^=") BINARY_OPERATION(OrAssign, "|=") // [C99 6.5.17] Comma operator. BINARY_OPERATION(Comma, ",") //===- Unary Operations ---------------------------------------------------===// // Note that additions to this should also update the StmtVisitor class, // UnaryOperator::getOverloadedOperator and CXUnaryOperatorKind enum. // [C99 6.5.2.4] Postfix increment and decrement UNARY_OPERATION(PostInc, "++") UNARY_OPERATION(PostDec, "--") // [C99 6.5.3.1] Prefix increment and decrement UNARY_OPERATION(PreInc, "++") UNARY_OPERATION(PreDec, "--") // [C99 6.5.3.2] Address and indirection UNARY_OPERATION(AddrOf, "&") UNARY_OPERATION(Deref, "*") // [C99 6.5.3.3] Unary arithmetic UNARY_OPERATION(Plus, "+") UNARY_OPERATION(Minus, "-") UNARY_OPERATION(Not, "~") UNARY_OPERATION(LNot, "!") // "__real expr"/"__imag expr" Extension. UNARY_OPERATION(Real, "__real") UNARY_OPERATION(Imag, "__imag") // __extension__ marker. UNARY_OPERATION(Extension, "__extension__") // [C++ Coroutines] co_await operator UNARY_OPERATION(Coawait, "co_await") #undef CAST_OPERATION #undef BINARY_OPERATION #undef UNARY_OPERATION
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