http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51784
--- Comment #30 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-14 16:56:10 UTC --- (In reply to comment #28) > Created attachment 26324 [details] > a first attempt at a fix > > this is pretty much the first ever RTL I've written .... > ... so comments welcome ... > > I've had a quick look at the output on a couple of test-cases and it seems to > DTRT .. but it's "hardly tested" so far. That #if TARGET_MACHO and if (TARGET_MACHO) is unneeded, the condition already guards it. If it was using some darwin specific functions or macros, you'd just surround the body in #if TARGET_MACHO. Furthermore, you don't know during expansion whether the PIC pointer will be emitted or not, therefore probably the nonlocal goto receiver (with the condition you've used) should be initially an instruction with unspec_volatile UNSPECV_NONLOCAL_GOTO_RECEIVER or so, and only split after prologue is emitted, either into nothing (if the PIC register doesn't need to be restored), or to the actual instructions.
