diff options
Diffstat (limited to 'include/llvm/Transforms/Utils/ModuleUtils.h')
| -rw-r--r-- | include/llvm/Transforms/Utils/ModuleUtils.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/include/llvm/Transforms/Utils/ModuleUtils.h b/include/llvm/Transforms/Utils/ModuleUtils.h index 2eb2b1363b0b..27508799f8e0 100644 --- a/include/llvm/Transforms/Utils/ModuleUtils.h +++ b/include/llvm/Transforms/Utils/ModuleUtils.h @@ -55,9 +55,31 @@ std::pair<Function *, Function *> createSanitizerCtorAndInitFunctions( ArrayRef<Type *> InitArgTypes, ArrayRef<Value *> InitArgs, StringRef VersionCheckName = StringRef()); -/// Rename all the anon functions in the module using a hash computed from +/// Rename all the anon globals in the module using a hash computed from /// the list of public globals in the module. -bool nameUnamedFunctions(Module &M); +bool nameUnamedGlobals(Module &M); + +/// \brief Adds global values to the llvm.used list. +void appendToUsed(Module &M, ArrayRef<GlobalValue *> Values); + +/// \brief Adds global values to the llvm.compiler.used list. +void appendToCompilerUsed(Module &M, ArrayRef<GlobalValue *> Values); + +/// Filter out potentially dead comdat functions where other entries keep the +/// entire comdat group alive. +/// +/// This is designed for cases where functions appear to become dead but remain +/// alive due to other live entries in their comdat group. +/// +/// The \p DeadComdatFunctions container should only have pointers to +/// `Function`s which are members of a comdat group and are believed to be +/// dead. +/// +/// After this routine finishes, the only remaining `Function`s in \p +/// DeadComdatFunctions are those where every member of the comdat is listed +/// and thus removing them is safe (provided *all* are removed). +void filterDeadComdatFunctions( + Module &M, SmallVectorImpl<Function *> &DeadComdatFunctions); } // End llvm namespace |