diff options
Diffstat (limited to 'clang/include')
| -rw-r--r-- | clang/include/clang/AST/HLSLResource.h | 5 | ||||
| -rw-r--r-- | clang/include/clang/Analysis/Analyses/LifetimeSafety.h | 24 | ||||
| -rw-r--r-- | clang/include/clang/Basic/SanitizerSpecialCaseList.h | 6 | ||||
| -rw-r--r-- | clang/include/clang/CIR/Dialect/IR/CIRAttrs.td | 57 | ||||
| -rw-r--r-- | clang/include/clang/CIR/Dialect/IR/CIROps.td | 146 | ||||
| -rw-r--r-- | clang/include/clang/CIR/Dialect/IR/CIRTypeConstraints.td | 22 | ||||
| -rw-r--r-- | clang/include/clang/Sema/Overload.h | 10 |
7 files changed, 244 insertions, 26 deletions
diff --git a/clang/include/clang/AST/HLSLResource.h b/clang/include/clang/AST/HLSLResource.h index 9cdd81b..7440050 100644 --- a/clang/include/clang/AST/HLSLResource.h +++ b/clang/include/clang/AST/HLSLResource.h @@ -69,6 +69,11 @@ struct ResourceBindingAttrs { assert(hasImplicitOrderID()); return RegBinding->getImplicitBindingOrderID(); } + + void setImplicitOrderID(unsigned Value) const { + assert(hasBinding() && !isExplicit() && !hasImplicitOrderID()); + RegBinding->setImplicitBindingOrderID(Value); + } }; } // namespace hlsl diff --git a/clang/include/clang/Analysis/Analyses/LifetimeSafety.h b/clang/include/clang/Analysis/Analyses/LifetimeSafety.h index 512cb76..e54fc26 100644 --- a/clang/include/clang/Analysis/Analyses/LifetimeSafety.h +++ b/clang/include/clang/Analysis/Analyses/LifetimeSafety.h @@ -29,12 +29,18 @@ namespace clang::lifetimes { /// Enum to track the confidence level of a potential error. -enum class Confidence { +enum class Confidence : uint8_t { None, Maybe, // Reported as a potential error (-Wlifetime-safety-strict) Definite // Reported as a definite error (-Wlifetime-safety-permissive) }; +enum class LivenessKind : uint8_t { + Dead, // Not alive + Maybe, // Live on some path but not all paths (may-be-live) + Must // Live on all paths (must-be-live) +}; + class LifetimeSafetyReporter { public: LifetimeSafetyReporter() = default; @@ -55,6 +61,7 @@ class Fact; class FactManager; class LoanPropagationAnalysis; class ExpiredLoansAnalysis; +class LiveOriginAnalysis; struct LifetimeFactory; /// A generic, type-safe wrapper for an ID, distinguished by its `Tag` type. @@ -89,6 +96,7 @@ inline llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, OriginID ID) { // TODO(opt): Consider using a bitset to represent the set of loans. using LoanSet = llvm::ImmutableSet<LoanID>; using OriginSet = llvm::ImmutableSet<OriginID>; +using OriginLoanMap = llvm::ImmutableMap<OriginID, LoanSet>; /// A `ProgramPoint` identifies a location in the CFG by pointing to a specific /// `Fact`. identified by a lifetime-related event (`Fact`). @@ -110,8 +118,16 @@ public: /// Returns the set of loans an origin holds at a specific program point. LoanSet getLoansAtPoint(OriginID OID, ProgramPoint PP) const; - /// Returns the set of loans that have expired at a specific program point. - std::vector<LoanID> getExpiredLoansAtPoint(ProgramPoint PP) const; + /// Returns the set of origins that are live at a specific program point, + /// along with the confidence level of their liveness. + /// + /// An origin is considered live if there are potential future uses of that + /// origin after the given program point. The confidence level indicates + /// whether the origin is definitely live (Definite) due to being domintated + /// by a set of uses or only possibly live (Maybe) only on some but not all + /// control flow paths. + std::vector<std::pair<OriginID, LivenessKind>> + getLiveOriginsAtPoint(ProgramPoint PP) const; /// Finds the OriginID for a given declaration. /// Returns a null optional if not found. @@ -138,7 +154,7 @@ private: std::unique_ptr<LifetimeFactory> Factory; std::unique_ptr<FactManager> FactMgr; std::unique_ptr<LoanPropagationAnalysis> LoanPropagation; - std::unique_ptr<ExpiredLoansAnalysis> ExpiredLoans; + std::unique_ptr<LiveOriginAnalysis> LiveOrigins; }; } // namespace internal } // namespace clang::lifetimes diff --git a/clang/include/clang/Basic/SanitizerSpecialCaseList.h b/clang/include/clang/Basic/SanitizerSpecialCaseList.h index cf74859..a05da4c 100644 --- a/clang/include/clang/Basic/SanitizerSpecialCaseList.h +++ b/clang/include/clang/Basic/SanitizerSpecialCaseList.h @@ -57,12 +57,10 @@ protected: void createSanitizerSections(); struct SanitizerSection { - SanitizerSection(SanitizerMask SM, SectionEntries &E, unsigned idx) - : Mask(SM), Entries(E), FileIdx(idx) {}; + SanitizerSection(SanitizerMask SM, const Section &S) : Mask(SM), S(S) {}; SanitizerMask Mask; - SectionEntries &Entries; - unsigned FileIdx; + const Section &S; }; std::vector<SanitizerSection> SanitizerSections; diff --git a/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td b/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td index 7714750..43832b7 100644 --- a/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td +++ b/clang/include/clang/CIR/Dialect/IR/CIRAttrs.td @@ -602,6 +602,63 @@ def CIR_VTableAttr : CIR_Attr<"VTable", "vtable", [TypedAttrInterface]> { } //===----------------------------------------------------------------------===// +// DynamicCastInfoAttr +//===----------------------------------------------------------------------===// + +def CIR_DynamicCastInfoAttr : CIR_Attr<"DynamicCastInfo", "dyn_cast_info"> { + let summary = "ABI specific information about a dynamic cast"; + let description = [{ + Provide ABI specific information about a dynamic cast operation. + + The `src_rtti` and the `dest_rtti` parameters give the RTTI of the source + record type and the destination record type, respectively. + + The `runtime_func` parameter gives the `__dynamic_cast` function which is + provided by the runtime. The `bad_cast_func` parameter gives the + `__cxa_bad_cast` function which is also provided by the runtime. + + The `offset_hint` parameter gives the hint value that should be passed to + the `__dynamic_cast` runtime function. + }]; + + let parameters = (ins + CIR_GlobalViewAttr:$src_rtti, + CIR_GlobalViewAttr:$dest_rtti, + "mlir::FlatSymbolRefAttr":$runtime_func, + "mlir::FlatSymbolRefAttr":$bad_cast_func, + CIR_IntAttr:$offset_hint + ); + + let builders = [ + AttrBuilderWithInferredContext<(ins + "GlobalViewAttr":$src_rtti, + "GlobalViewAttr":$dest_rtti, + "mlir::FlatSymbolRefAttr":$runtime_func, + "mlir::FlatSymbolRefAttr":$bad_cast_func, + "IntAttr":$offset_hint), [{ + return $_get(src_rtti.getContext(), src_rtti, dest_rtti, runtime_func, + bad_cast_func, offset_hint); + }]>, + ]; + + let genVerifyDecl = 1; + let assemblyFormat = [{ + `<` + struct(qualified($src_rtti), + qualified($dest_rtti), + $runtime_func, + $bad_cast_func, + qualified($offset_hint)) + `>` + }]; + + let extraClassDeclaration = [{ + /// Get attribute alias name for this attribute. + std::string getAlias() const; + }]; +} + +//===----------------------------------------------------------------------===// // TargetAddressSpaceAttr //===----------------------------------------------------------------------===// diff --git a/clang/include/clang/CIR/Dialect/IR/CIROps.td b/clang/include/clang/CIR/Dialect/IR/CIROps.td index addc378..27fe0cc 100644 --- a/clang/include/clang/CIR/Dialect/IR/CIROps.td +++ b/clang/include/clang/CIR/Dialect/IR/CIROps.td @@ -232,6 +232,100 @@ def CIR_CastOp : CIR_Op<"cast", [ }]; } +//===----------------------------------------------------------------------===// +// DynamicCastOp +//===----------------------------------------------------------------------===// + +def CIR_DynamicCastKind : CIR_I32EnumAttr< + "DynamicCastKind", "dynamic cast kind", [ + I32EnumAttrCase<"Ptr", 0, "ptr">, + I32EnumAttrCase<"Ref", 1, "ref"> +]>; + +def CIR_DynamicCastOp : CIR_Op<"dyn_cast"> { + let summary = "Perform dynamic cast on record pointers"; + let description = [{ + The `cir.dyn_cast` operation models part of the semantics of the + `dynamic_cast` operator in C++. It can be used to perform 3 kinds of casts + on record pointers: + + - Down-cast, which casts a base class pointer to a derived class pointer; + - Side-cast, which casts a class pointer to a sibling class pointer; + - Cast-to-complete, which casts a class pointer to a void pointer. + + The input of the operation must be a record pointer. The result of the + operation is either a record pointer or a void pointer. + + The parameter `kind` specifies the semantics of this operation. If its value + is `ptr`, then the operation models dynamic casts on pointers. Otherwise, if + its value is `ref`, the operation models dynamic casts on references. + Specifically: + + - When the input pointer is a null pointer value: + - If `kind` is `ref`, the operation will invoke undefined behavior. A + sanitizer check will be emitted if sanitizer is on. + - Otherwise, the operation will return a null pointer value as its result. + - When the runtime type check fails: + - If `kind` is `ref`, the operation will throw a `bad_cast` exception. + - Otherwise, the operation will return a null pointer value as its result. + + The `info` argument gives detailed information about the requested dynamic + cast operation. It is an optional `#cir.dyn_cast_info` attribute that is + only present when the operation models a down-cast or a side-cast. + + The `relative_layout` argument specifies whether the Itanium C++ ABI vtable + uses relative layout. It is only meaningful when the operation models a + cast-to-complete operation. + + Examples: + + ```mlir + %0 = cir.dyn_cast ptr %p : !cir.ptr<!rec_Base> -> !cir.ptr<!rec_Derived> + %1 = cir.dyn_cast ptr relative_layout %p : !cir.ptr<!rec_Base> + -> !cir.ptr<!rec_Derived> + %2 = cir.dyn_cast ref %r : !cir.ptr<!rec_Base> -> !cir.ptr<!rec_Derived> + #cir.dyn_cast_info< + srcRtti = #cir.global_view<@_ZTI4Base> : !cir.ptr<!u8i>, + destRtti = #cir.global_view<@_ZTI7Derived> : !cir.ptr<!u8i>, + runtimeFunc = @__dynamic_cast, + badCastFunc = @__cxa_bad_cast, + offsetHint = #cir.int<0> : !s64i + > + ``` + }]; + + let arguments = (ins + CIR_DynamicCastKind:$kind, + CIR_PtrToRecordType:$src, + OptionalAttr<CIR_DynamicCastInfoAttr>:$info, + UnitAttr:$relative_layout + ); + + let results = (outs + CIR_PtrToAnyOf<[CIR_VoidType, CIR_RecordType]>:$result + ); + + let assemblyFormat = [{ + $kind (`relative_layout` $relative_layout^)? $src + `:` qualified(type($src)) `->` qualified(type($result)) + (qualified($info)^)? attr-dict + }]; + + let extraClassDeclaration = [{ + /// Determine whether this operation models reference casting in C++. + bool isRefCast() { + return getKind() == ::cir::DynamicCastKind::Ref; + } + + /// Determine whether this operation represents a dynamic cast to a void + /// pointer. + bool isCastToVoid() { + return getType().isVoidPtr(); + } + }]; + + let hasLLVMLowering = false; +} //===----------------------------------------------------------------------===// // PtrStrideOp @@ -3277,9 +3371,9 @@ def CIR_ComplexCreateOp : CIR_Op<"complex.create", [Pure, SameTypeOperands]> { def CIR_ComplexRealOp : CIR_Op<"complex.real", [Pure]> { let summary = "Extract the real part of a complex value"; let description = [{ - `cir.complex.real` operation takes an operand of `!cir.complex`, `!cir.int` - or `!cir.float`. If the operand is `!cir.complex`, the real part of it will - be returned, otherwise the value returned unmodified. + `cir.complex.real` operation takes an operand of `!cir.complex`, `cir.int`, + `!cir.bool` or `!cir.float`. If the operand is `!cir.complex`, the real + part of it will be returned, otherwise the value returned unmodified. Example: @@ -3289,8 +3383,8 @@ def CIR_ComplexRealOp : CIR_Op<"complex.real", [Pure]> { ``` }]; - let results = (outs CIR_AnyIntOrFloatType:$result); - let arguments = (ins CIR_AnyComplexOrIntOrFloatType:$operand); + let results = (outs CIR_AnyIntOrBoolOrFloatType:$result); + let arguments = (ins CIR_AnyComplexOrIntOrBoolOrFloatType:$operand); let assemblyFormat = [{ $operand `:` qualified(type($operand)) `->` qualified(type($result)) @@ -3309,8 +3403,8 @@ def CIR_ComplexImagOp : CIR_Op<"complex.imag", [Pure]> { let summary = "Extract the imaginary part of a complex value"; let description = [{ `cir.complex.imag` operation takes an operand of `!cir.complex`, `!cir.int` - or `!cir.float`. If the operand is `!cir.complex`, the imag part of it will - be returned, otherwise a zero value will be returned. + `!cir.bool` or `!cir.float`. If the operand is `!cir.complex`, the imag + part of it will be returned, otherwise a zero value will be returned. Example: @@ -3320,8 +3414,8 @@ def CIR_ComplexImagOp : CIR_Op<"complex.imag", [Pure]> { ``` }]; - let results = (outs CIR_AnyIntOrFloatType:$result); - let arguments = (ins CIR_AnyComplexOrIntOrFloatType:$operand); + let results = (outs CIR_AnyIntOrBoolOrFloatType:$result); + let arguments = (ins CIR_AnyComplexOrIntOrBoolOrFloatType:$operand); let assemblyFormat = [{ $operand `:` qualified(type($operand)) `->` qualified(type($result)) @@ -4169,6 +4263,40 @@ def CIR_ThrowOp : CIR_Op<"throw"> { } //===----------------------------------------------------------------------===// +// AllocExceptionOp +//===----------------------------------------------------------------------===// + +def CIR_AllocExceptionOp : CIR_Op<"alloc.exception"> { + let summary = "Allocates an exception according to Itanium ABI"; + let description = [{ + Implements a slightly higher level __cxa_allocate_exception: + + `void *__cxa_allocate_exception(size_t thrown_size);` + + If the operation fails, the program terminates rather than throw. + + Example: + + ```mlir + // if (b == 0) { + // ... + // throw "..."; + cir.if %10 { + %11 = cir.alloc_exception 8 -> !cir.ptr<!void> + ... // store exception content into %11 + cir.throw %11 : !cir.ptr<!cir.ptr<!u8i>>, ... + ``` + }]; + + let arguments = (ins I64Attr:$size); + let results = (outs Res<CIR_PointerType, "", [MemAlloc<DefaultResource>]>:$addr); + + let assemblyFormat = [{ + $size `->` qualified(type($addr)) attr-dict + }]; +} + +//===----------------------------------------------------------------------===// // Atomic operations //===----------------------------------------------------------------------===// diff --git a/clang/include/clang/CIR/Dialect/IR/CIRTypeConstraints.td b/clang/include/clang/CIR/Dialect/IR/CIRTypeConstraints.td index da03a29..b2c146c 100644 --- a/clang/include/clang/CIR/Dialect/IR/CIRTypeConstraints.td +++ b/clang/include/clang/CIR/Dialect/IR/CIRTypeConstraints.td @@ -159,19 +159,31 @@ def CIR_AnyIntOrFloatType : AnyTypeOf<[CIR_AnyFloatType, CIR_AnyIntType], let cppFunctionName = "isAnyIntegerOrFloatingPointType"; } +def CIR_AnyIntOrBoolOrFloatType + : AnyTypeOf<[CIR_AnyBoolType, CIR_AnyFloatType, CIR_AnyIntType], + "integer, boolean or floating point type"> { + let cppFunctionName = "isAnyIntegerOrBooleanOrFloatingPointType"; +} + //===----------------------------------------------------------------------===// // Complex Type predicates //===----------------------------------------------------------------------===// def CIR_AnyComplexType : CIR_TypeBase<"::cir::ComplexType", "complex type">; -def CIR_AnyComplexOrIntOrFloatType : AnyTypeOf<[ - CIR_AnyComplexType, CIR_AnyFloatType, CIR_AnyIntType -], "complex, integer or floating point type"> { - let cppFunctionName = "isComplexOrIntegerOrFloatingPointType"; +def CIR_AnyComplexOrIntOrBoolOrFloatType + : AnyTypeOf<[CIR_AnyComplexType, CIR_AnyIntOrBoolOrFloatType], + "complex, integer or floating point type"> { + let cppFunctionName = "isComplexOrIntegerOrBoolOrFloatingPointType"; } //===----------------------------------------------------------------------===// +// Record Type predicates +//===----------------------------------------------------------------------===// + +def CIR_AnyRecordType : CIR_TypeBase<"::cir::RecordType", "record type">; + +//===----------------------------------------------------------------------===// // Array Type predicates //===----------------------------------------------------------------------===// @@ -228,6 +240,8 @@ def CIR_PtrToIntOrFloatType : CIR_PtrToType<CIR_AnyIntOrFloatType>; def CIR_PtrToComplexType : CIR_PtrToType<CIR_AnyComplexType>; +def CIR_PtrToRecordType : CIR_PtrToType<CIR_AnyRecordType>; + def CIR_PtrToArray : CIR_PtrToType<CIR_AnyArrayType>; //===----------------------------------------------------------------------===// diff --git a/clang/include/clang/Sema/Overload.h b/clang/include/clang/Sema/Overload.h index d34a414..59bbd0f 100644 --- a/clang/include/clang/Sema/Overload.h +++ b/clang/include/clang/Sema/Overload.h @@ -1202,12 +1202,12 @@ class Sema; /// Would use of this function result in a rewrite using a different /// operator? - bool isRewrittenOperator(const FunctionDecl *FD) { + bool isRewrittenOperator(const FunctionDecl *FD) const { return OriginalOperator && FD->getDeclName().getCXXOverloadedOperator() != OriginalOperator; } - bool isAcceptableCandidate(const FunctionDecl *FD) { + bool isAcceptableCandidate(const FunctionDecl *FD) const { if (!OriginalOperator) return true; @@ -1234,7 +1234,7 @@ class Sema; } /// Determines whether this operator could be implemented by a function /// with reversed parameter order. - bool isReversible() { + bool isReversible() const { return AllowRewrittenCandidates && OriginalOperator && (getRewrittenOverloadedOperator(OriginalOperator) != OO_None || allowsReversed(OriginalOperator)); @@ -1242,13 +1242,13 @@ class Sema; /// Determine whether reversing parameter order is allowed for operator /// Op. - bool allowsReversed(OverloadedOperatorKind Op); + bool allowsReversed(OverloadedOperatorKind Op) const; /// Determine whether we should add a rewritten candidate for \p FD with /// reversed parameter order. /// \param OriginalArgs are the original non reversed arguments. bool shouldAddReversed(Sema &S, ArrayRef<Expr *> OriginalArgs, - FunctionDecl *FD); + FunctionDecl *FD) const; }; private: |