std::string TargetTriple; ///< Platform target triple Module compiled on
///< Format: (arch)(sub)-(vendor)-(sys0-(abi)
void *NamedMDSymTab; ///< NamedMDNode names.
-
- // We need to keep the string because the C API expects us to own the string
- // representation.
- // Since we have it, we also use an empty string to represent a module without
- // a DataLayout. If it has a DataLayout, these variables are in sync and the
- // string is just a cache of getDataLayout()->getStringRepresentation().
- std::string DataLayoutStr;
- DataLayout DL;
+ DataLayout DL; ///< DataLayout associated with the module
friend class Constant;
/// @returns the module identifier as a string
const std::string &getModuleIdentifier() const { return ModuleID; }
+ /// \brief Get a short "name" for the module.
+ ///
+ /// This is useful for debugging or logging. It is essentially a convenience
+ /// wrapper around getModuleIdentifier().
+ StringRef getName() const { return ModuleID; }
+
/// Get the data layout string for the module's target platform. This is
/// equivalent to getDataLayout()->getStringRepresentation().
- const std::string &getDataLayoutStr() const { return DataLayoutStr; }
+ const std::string getDataLayoutStr() const {
+ return DL.getStringRepresentation();
+ }
/// Get the data layout for the module's target platform.
- const DataLayout *getDataLayout() const;
+ const DataLayout &getDataLayout() const;
/// Get the target triple which is a string describing the target host.
/// @returns a string containing the target triple.
/// Set the data layout
void setDataLayout(StringRef Desc);
- void setDataLayout(const DataLayout *Other);
+ void setDataLayout(const DataLayout &Other);
/// Set the target triple.
void setTargetTriple(StringRef T) { TargetTriple = T; }
/// Set the module-scope inline assembly blocks.
+ /// A trailing newline is added if the input doesn't have one.
void setModuleInlineAsm(StringRef Asm) {
GlobalScopeAsm = Asm;
if (!GlobalScopeAsm.empty() &&
GlobalScopeAsm += '\n';
}
- /// Append to the module-scope inline assembly blocks, automatically inserting
- /// a separating newline if necessary.
+ /// Append to the module-scope inline assembly blocks.
+ /// A trailing newline is added if the input doesn't have one.
void appendModuleInlineAsm(StringRef Asm) {
GlobalScopeAsm += Asm;
if (!GlobalScopeAsm.empty() &&
/// If the GlobalValue is read in, and if the GVMaterializer supports it,
/// release the memory for the function, and set it up to be materialized
/// lazily. If !isDematerializable(), this method is a no-op.
- void Dematerialize(GlobalValue *GV);
+ void dematerialize(GlobalValue *GV);
/// Make sure all GlobalValues in this Module are fully read.
std::error_code materializeAll();
/// Materializer.
std::error_code materializeAllPermanently();
+ std::error_code materializeMetadata();
+
/// @}
/// @name Direct access to the globals list, functions list, and symbol table
/// @{
named_metadata_end());
}
+ /// Destroy ConstantArrays in LLVMContext if they are not used.
+ /// ConstantArrays constructed during linking can cause quadratic memory
+ /// explosion. Releasing all unused constants can cause a 20% LTO compile-time
+ /// slowdown for a large application.
+ ///
+ /// NOTE: Constants are currently owned by LLVMContext. This can then only
+ /// be called where all uses of the LLVMContext are understood.
+ void dropTriviallyDeadConstantArrays();
+
/// @}
/// @name Utility functions for printing and dumping Module objects
/// @{
/// Print the module to an output stream with an optional
- /// AssemblyAnnotationWriter.
- void print(raw_ostream &OS, AssemblyAnnotationWriter *AAW) const;
+ /// AssemblyAnnotationWriter. If \c ShouldPreserveUseListOrder, then include
+ /// uselistorder directives so that use-lists can be recreated when reading
+ /// the assembly.
+ void print(raw_ostream &OS, AssemblyAnnotationWriter *AAW,
+ bool ShouldPreserveUseListOrder = false) const;
/// Dump the module to stderr (for debugging).
void dump() const;