clang: lib/CodeGen/CGAtomic.cpp File Reference (original) (raw)

#include "[CGCall.h](CGCall%5F8h%5Fsource.html)"
#include "[CGRecordLayout.h](CGRecordLayout%5F8h%5Fsource.html)"
#include "[CodeGenFunction.h](CodeGenFunction%5F8h%5Fsource.html)"
#include "[CodeGenModule.h](CodeGenModule%5F8h%5Fsource.html)"
#include "[TargetInfo.h](lib%5F2CodeGen%5F2TargetInfo%5F8h%5Fsource.html)"
#include "[clang/AST/ASTContext.h](ASTContext%5F8h%5Fsource.html)"
#include "[clang/CodeGen/CGFunctionInfo.h](CGFunctionInfo%5F8h%5Fsource.html)"
#include "[clang/Frontend/FrontendDiagnostic.h](FrontendDiagnostic%5F8h%5Fsource.html)"
#include "llvm/ADT/DenseMap.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Intrinsics.h"

Go to the source code of this file.

Functions
static RValue emitAtomicLibcall (CodeGenFunction &CGF, StringRef fnName, QualType resultType, CallArgList &args)
static bool isFullSizeType (CodeGenModule &CGM, llvm::Type *type, uint64_t expectedSize)
Does a store of the given IR type modify the full expected width?
static void emitAtomicCmpXchg (CodeGenFunction &CGF, AtomicExpr *E, bool IsWeak, Address Dest, Address Ptr, Address Val1, Address Val2, uint64_t Size, llvm::AtomicOrdering SuccessOrder, llvm::AtomicOrdering FailureOrder, llvm::SyncScope::ID Scope)
static void emitAtomicCmpXchgFailureSet (CodeGenFunction &CGF, AtomicExpr *E, bool IsWeak, Address Dest, Address Ptr, Address Val1, Address Val2, llvm::Value *FailureOrderVal, uint64_t Size, llvm::AtomicOrdering SuccessOrder, llvm::SyncScope::ID Scope)
Given an ordering required on success, emit all possible cmpxchg instructions to cope with the provided (but possibly only dynamically known) FailureOrder.
static llvm::Value * EmitPostAtomicMinMax (CGBuilderTy &Builder, AtomicExpr::AtomicOp Op, bool IsSigned, llvm::Value *OldVal, llvm::Value *RHS)
Duplicate the atomic min/max operation in conventional IR for the builtin variants that return the new rather than the original value.
static void EmitAtomicOp (CodeGenFunction &CGF, AtomicExpr *E, Address Dest, Address Ptr, Address Val1, Address Val2, llvm::Value *IsWeak, llvm::Value *FailureOrder, uint64_t Size, llvm::AtomicOrdering Order, llvm::SyncScope::ID Scope)
static Address EmitValToTemp (CodeGenFunction &CGF, Expr *E)
static void EmitAtomicOp (CodeGenFunction &CGF, AtomicExpr *Expr, Address Dest, Address Ptr, Address Val1, Address Val2, llvm::Value *IsWeak, llvm::Value *FailureOrder, uint64_t Size, llvm::AtomicOrdering Order, llvm::Value *Scope)
static bool shouldCastToInt (llvm::Type *ValTy, bool CmpXchg)
Return true if.
static void EmitAtomicUpdateValue (CodeGenFunction &CGF, AtomicInfo &Atomics, RValue OldRVal, const llvm::function_ref< RValue(RValue)> &UpdateOp, Address DesiredAddr)
static void EmitAtomicUpdateValue (CodeGenFunction &CGF, AtomicInfo &Atomics, RValue UpdateRVal, Address DesiredAddr)

◆ emitAtomicCmpXchg()

static void emitAtomicCmpXchg ( CodeGenFunction & CGF, AtomicExpr * E, bool IsWeak, Address Dest, Address Ptr, Address Val1, Address Val2, uint64_t Size, llvm::AtomicOrdering SuccessOrder, llvm::AtomicOrdering FailureOrder, llvm::SyncScope::ID Scope ) static

Definition at line 376 of file CGAtomic.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CGBuilderTy::CreateAtomicCmpXchg(), clang::CodeGen::CodeGenFunction::createBasicBlock(), clang::CodeGen::CGBuilderTy::CreateLoad(), clang::CodeGen::CGBuilderTy::CreateStore(), clang::CodeGen::CodeGenFunction::CurFn, E, clang::CodeGen::CodeGenFunction::EmitStoreOfScalar(), clang::CodeGen::CodeGenFunction::getTargetHooks(), clang::Expr::getType(), clang::CodeGen::CodeGenFunction::MakeAddrLValue(), and clang::CodeGen::TargetCodeGenInfo::setTargetAtomicMetadata().

Referenced by emitAtomicCmpXchgFailureSet().

◆ emitAtomicCmpXchgFailureSet()

static void emitAtomicCmpXchgFailureSet ( CodeGenFunction & CGF, AtomicExpr * E, bool IsWeak, Address Dest, Address Ptr, Address Val1, Address Val2, llvm::Value * FailureOrderVal, uint64_t Size, llvm::AtomicOrdering SuccessOrder, llvm::SyncScope::ID Scope ) static

◆ emitAtomicLibcall()

◆ EmitAtomicOp() [1/2]

static void EmitAtomicOp ( CodeGenFunction & CGF, AtomicExpr * E, Address Dest, Address Ptr, Address Val1, Address Val2, llvm::Value * IsWeak, llvm::Value * FailureOrder, uint64_t Size, llvm::AtomicOrdering Order, llvm::SyncScope::ID Scope ) static

◆ EmitAtomicOp() [2/2]

static void EmitAtomicOp ( CodeGenFunction & CGF, AtomicExpr * Expr, Address Dest, Address Ptr, Address Val1, Address Val2, llvm::Value * IsWeak, llvm::Value * FailureOrder, uint64_t Size, llvm::AtomicOrdering Order, llvm::Value * Scope ) static

Definition at line 759 of file CGAtomic.cpp.

References clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CodeGenFunction::CGM, clang::CodeGen::CodeGenFunction::createBasicBlock(), clang::CodeGen::CodeGenFunction::CurFn, EmitAtomicOp(), clang::getAsString(), clang::CodeGen::CodeGenFunction::getLangOpts(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::CodeGen::CodeGenFunction::getLLVMContext(), clang::CodeGen::CodeGenModule::getLLVMContext(), clang::CodeGen::TargetCodeGenInfo::getLLVMSyncScopeID(), and clang::CodeGen::CodeGenFunction::getTargetHooks().

◆ EmitAtomicUpdateValue() [1/2]

Definition at line 1721 of file CGAtomic.cpp.

References clang::CodeGen::CodeGenFunction::EmitLoadOfLValue(), clang::CodeGen::CodeGenFunction::EmitStoreOfComplex(), clang::CodeGen::CodeGenFunction::EmitStoreThroughLValue(), clang::CodeGen::LValue::getBaseInfo(), clang::CodeGen::LValue::getBitFieldInfo(), clang::CodeGen::RValue::getComplexVal(), clang::CodeGen::LValue::getExtVectorElts(), clang::CodeGen::LValue::getTBAAInfo(), clang::CodeGen::LValue::getType(), clang::CodeGen::LValue::getVectorIdx(), clang::CodeGen::LValue::isBitField(), clang::CodeGen::RValue::isComplex(), clang::CodeGen::LValue::isExtVectorElt(), clang::CodeGen::RValue::isScalar(), clang::CodeGen::LValue::isSimple(), clang::CodeGen::LValue::isVectorElt(), clang::CodeGen::CodeGenFunction::MakeAddrLValue(), clang::CodeGen::LValue::MakeBitfield(), clang::CodeGen::LValue::MakeExtVectorElt(), and clang::CodeGen::LValue::MakeVectorElt().

◆ EmitAtomicUpdateValue() [2/2]

Definition at line 1841 of file CGAtomic.cpp.

References clang::CodeGen::CodeGenFunction::EmitStoreThroughLValue(), clang::CodeGen::LValue::getBaseInfo(), clang::CodeGen::LValue::getBitFieldInfo(), clang::CodeGen::LValue::getExtVectorElts(), clang::CodeGen::LValue::getTBAAInfo(), clang::CodeGen::LValue::getType(), clang::CodeGen::LValue::getVectorIdx(), clang::CodeGen::LValue::isBitField(), clang::CodeGen::LValue::isExtVectorElt(), clang::CodeGen::RValue::isScalar(), clang::CodeGen::LValue::isVectorElt(), clang::CodeGen::LValue::MakeBitfield(), clang::CodeGen::LValue::MakeExtVectorElt(), and clang::CodeGen::LValue::MakeVectorElt().

◆ EmitPostAtomicMinMax()

Duplicate the atomic min/max operation in conventional IR for the builtin variants that return the new rather than the original value.

Definition at line 503 of file CGAtomic.cpp.

Referenced by EmitAtomicOp().

◆ EmitValToTemp()

◆ isFullSizeType()

◆ shouldCastToInt()

Return true if.

Parameters

ValTy is a type that should be casted to integer around the atomic memory operation. If
CmpXchg is true, then the cast of a floating point type is made as that instruction can not have floating point operands. TODO: Allow compare-and-exchange and FP - see comment in AtomicExpandPass.cpp.

Definition at line 1420 of file CGAtomic.cpp.