http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49798
--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> 2011-07-21 14:02:54 UTC --- (In reply to comment #5) > (In reply to comment #4) > > > > Linker should put correct address (so, zero extended 32bit address) here. > > > > Did you mean assembler? In many cases, .quad is still simply wrong (PR > > 47446). > > No, the linker. But looking at mentioned PR, linker is not able to generate > BFD_RELOC_64. That is correct. We shouldn't have BFD_RELOC_64 in 32bit. > > GCC shouldn't generate .quad in this case. A patch is posted at > > > > http://gcc.gnu.org/ml/gcc-patches/2011-07/msg01711.html > > IMO, this patch is wrong. Generated code should look like the one for i686, so > it looks to me that check for Pmode != ptr_mode is missing somewhere in the > middle end. That is not necessarily true if Pmode is used here. In this regard, x32 is the same as x86-64. Basically a 64bit value is generated from an address. If address is 32bit, we just need to zero-extend it.
