#ifndef LLVM_IR_FUNCTION_H
#define LLVM_IR_FUNCTION_H
+#include "llvm/ADT/iterator_range.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
/// the module.
///
Function(FunctionType *Ty, LinkageTypes Linkage,
- const Twine &N = "", Module *M = 0);
+ const Twine &N = "", Module *M = nullptr);
public:
static Function *Create(FunctionType *Ty, LinkageTypes Linkage,
- const Twine &N = "", Module *M = 0) {
+ const Twine &N = "", Module *M = nullptr) {
return new(0) Function(Ty, Linkage, N, M);
}
/// calling convention of this function. The enum values for the known
/// calling conventions are defined in CallingConv.h.
CallingConv::ID getCallingConv() const {
- return static_cast<CallingConv::ID>(getSubclassDataFromValue() >> 1);
+ return static_cast<CallingConv::ID>(getSubclassDataFromValue() >> 2);
}
void setCallingConv(CallingConv::ID CC) {
- setValueSubclassData((getSubclassDataFromValue() & 1) |
- (static_cast<unsigned>(CC) << 1));
+ setValueSubclassData((getSubclassDataFromValue() & 3) |
+ (static_cast<unsigned>(CC) << 2));
}
- /// getAttributes - Return the attribute list for this Function.
- ///
+ /// @brief Return the attribute list for this Function.
AttributeSet getAttributes() const { return AttributeSets; }
- /// setAttributes - Set the attribute list for this Function.
- ///
+ /// @brief Set the attribute list for this Function.
void setAttributes(AttributeSet attrs) { AttributeSets = attrs; }
- /// addFnAttr - Add function attributes to this function.
- ///
+ /// @brief Add function attributes to this function.
void addFnAttr(Attribute::AttrKind N) {
setAttributes(AttributeSets.addAttribute(getContext(),
AttributeSet::FunctionIndex, N));
}
- /// removeFnAttr - Remove function attributes from this function.
- ///
+ /// @brief Remove function attributes from this function.
void removeFnAttr(Attribute::AttrKind N) {
setAttributes(AttributeSets.removeAttribute(
getContext(), AttributeSet::FunctionIndex, N));
}
- /// addFnAttr - Add function attributes to this function.
- ///
+ /// @brief Add function attributes to this function.
void addFnAttr(StringRef Kind) {
setAttributes(
AttributeSets.addAttribute(getContext(),
AttributeSet::FunctionIndex, Kind));
}
+ void addFnAttr(StringRef Kind, StringRef Value) {
+ setAttributes(
+ AttributeSets.addAttribute(getContext(),
+ AttributeSet::FunctionIndex, Kind, Value));
+ }
- /// \brief Return true if the function has the attribute.
+ /// @brief Return true if the function has the attribute.
bool hasFnAttribute(Attribute::AttrKind Kind) const {
return AttributeSets.hasAttribute(AttributeSet::FunctionIndex, Kind);
}
return AttributeSets.hasAttribute(AttributeSet::FunctionIndex, Kind);
}
+ /// @brief Return the attribute for the given attribute kind.
+ Attribute getFnAttribute(Attribute::AttrKind Kind) const {
+ return AttributeSets.getAttribute(AttributeSet::FunctionIndex, Kind);
+ }
+ Attribute getFnAttribute(StringRef Kind) const {
+ return AttributeSets.getAttribute(AttributeSet::FunctionIndex, Kind);
+ }
+
/// hasGC/getGC/setGC/clearGC - The name of the garbage collection algorithm
/// to use during code generation.
bool hasGC() const;
addAttribute(n, Attribute::NoCapture);
}
+ bool doesNotAccessMemory(unsigned n) const {
+ return AttributeSets.hasAttribute(n, Attribute::ReadNone);
+ }
+ void setDoesNotAccessMemory(unsigned n) {
+ addAttribute(n, Attribute::ReadNone);
+ }
+
bool onlyReadsMemory(unsigned n) const {
- return AttributeSets.hasAttribute(n, Attribute::ReadOnly) ||
- AttributeSets.hasAttribute(n, Attribute::ReadNone);
+ return doesNotAccessMemory(n) ||
+ AttributeSets.hasAttribute(n, Attribute::ReadOnly);
}
void setOnlyReadsMemory(unsigned n) {
addAttribute(n, Attribute::ReadOnly);
/// copyAttributesFrom - copy all additional attributes (those not needed to
/// create a Function) from the Function Src to this one.
- void copyAttributesFrom(const GlobalValue *Src);
+ void copyAttributesFrom(const GlobalValue *Src) override;
/// deleteBody - This method deletes the body of the function, and converts
/// the linkage to external.
/// removeFromParent - This method unlinks 'this' from the containing module,
/// but does not delete it.
///
- virtual void removeFromParent();
+ void removeFromParent() override;
/// eraseFromParent - This method unlinks 'this' from the containing module
/// and deletes it.
///
- virtual void eraseFromParent();
+ void eraseFromParent() override;
/// Get the underlying elements of the Function... the basic block list is
const BasicBlock &back() const { return BasicBlocks.back(); }
BasicBlock &back() { return BasicBlocks.back(); }
- //===--------------------------------------------------------------------===//
- // Argument iterator forwarding functions
- //
+/// @name Function Argument Iteration
+/// @{
+
arg_iterator arg_begin() {
CheckLazyArguments();
return ArgumentList.begin();
return ArgumentList.end();
}
+ iterator_range<arg_iterator> args() {
+ return iterator_range<arg_iterator>(arg_begin(), arg_end());
+ }
+
+ iterator_range<const_arg_iterator> args() const {
+ return iterator_range<const_arg_iterator>(arg_begin(), arg_end());
+ }
+
+/// @}
+
size_t arg_size() const;
bool arg_empty() const;
+ bool hasPrefixData() const {
+ return getSubclassDataFromValue() & 2;
+ }
+
+ Constant *getPrefixData() const;
+ void setPrefixData(Constant *PrefixData);
+
/// viewCFG - This function is meant for use from the debugger. You can just
/// say 'call F->viewCFG()' and a ghostview window should pop up from the
/// program, displaying the CFG of the current function with the code for each
/// other than direct calls or invokes to it, or blockaddress expressions.
/// Optionally passes back an offending user for diagnostic purposes.
///
- bool hasAddressTaken(const User** = 0) const;
+ bool hasAddressTaken(const User** = nullptr) const;
/// isDefTriviallyDead - Return true if it is trivially safe to remove
/// this function definition from the module (because it isn't externally
inline ValueSymbolTable *
ilist_traits<BasicBlock>::getSymTab(Function *F) {
- return F ? &F->getValueSymbolTable() : 0;
+ return F ? &F->getValueSymbolTable() : nullptr;
}
inline ValueSymbolTable *
ilist_traits<Argument>::getSymTab(Function *F) {
- return F ? &F->getValueSymbolTable() : 0;
+ return F ? &F->getValueSymbolTable() : nullptr;
}
} // End llvm namespace
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