diff options
Diffstat (limited to 'include/llvm/Transforms/IPO.h')
| -rw-r--r-- | include/llvm/Transforms/IPO.h | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/include/llvm/Transforms/IPO.h b/include/llvm/Transforms/IPO.h index ed2823098a..7f51c516b9 100644 --- a/include/llvm/Transforms/IPO.h +++ b/include/llvm/Transforms/IPO.h @@ -111,25 +111,9 @@ Pass *createPruneEHPass(); /// The symbol in DSOList are internalized if it is safe to drop them from /// the symbol table. /// -/// For example of the difference, consider a dynamic library being built from -/// two translation units. The first one compiled to a native object -/// (ELF/MachO/COFF) and second one compiled to IL. Translation unit A has a -/// copy of linkonce_odr unnamed_addr function F. The translation unit B has a -/// copy of the linkonce_odr unnamed_addr functions F and G. -/// -/// Assume the linker decides to keep the copy of F in B. This means that LLVM -/// must produce F in the object file it passes to the linker, otherwise we -/// will have an undefined reference. For G the situation is different. The -/// linker puts the function in the DSOList, since it is only wanted for the -/// symbol table. With this information internalize can now reason that since -/// the function is a linkonce_odr and its address is not important, it can be -/// omitted. Any other shared library needing this function will have a copy of -/// it. -/// /// Note that commandline options that are used with the above function are not /// used now! -ModulePass *createInternalizePass(ArrayRef<const char *> ExportList, - ArrayRef<const char *> DSOList); +ModulePass *createInternalizePass(ArrayRef<const char *> ExportList); /// createInternalizePass - Same as above, but with an empty exportList. ModulePass *createInternalizePass(); |