Defined in 4 files as a macro:
- contrib/gcc/config/i386/i386.h, line 1794 (as a macro)
- contrib/gcc/config/ia64/ia64.h, line 1988 (as a macro)
- contrib/gcc/config/sparc/sparc.h, line 2185 (as a macro)
- contrib/gcc/tree-ssa-loop-prefetch.c, line 128 (as a macro)