------- Comment #32 from carlos at codesourcery dot com 2009-04-29 15:07 ------- No, you are absolutely right and the tree dumps confirm it. I thought it might be possible to trigger a reference by using the right flags, but to no avail, the compiler always folds the if-then-else to __signbit.
This proves to me that no program could have ever created a reference to __signbitl unless they specifically called __signbitl, which is a but in the application. I now agree with Benjamin that this is a [4.2/4.3 regression]. Notes: * I am using -fno-builtins to avoid the compiler builtins from being used for signbit[fl]. * I would never want libstdc++ to ever provide a default symbol for __signbitl, only a compat one, but this is now moot since we proved no program could ever reference __signbitl. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39491
