Defined in 3 files as a macro:
- external/gpl3/gcc/dist/gcc/config/rs6000/vxworks.h, line 67 (as a macro)
- external/gpl3/gcc/dist/gcc/config/rs6000/vxworksae.h, line 23 (as a macro)
- external/gpl3/gcc/dist/gcc/config/rs6000/vxworksmils.h, line 29 (as a macro)