On Mar 28, 2012, at 12:44 PM, Joseph S. Myers wrote: >> config/darwin.c: && TARGET_64BIT >> config/darwin.c: && TARGET_64BIT >> config/darwin.c: : (TARGET_64BIT ? 2 >> config/darwin.c: if (TARGET_64BIT && global_options.x_flag_objc_abi < 2) >> config/darwin.c: if (!TARGET_64BIT && global_options.x_flag_objc_abi >= >> 2) >> config/darwin.c: && !TARGET_64BIT) >> config/darwin.c: if (!TARGET_64BIT) \ >> config/darwin.c: if (!TARGET_64BIT >> \ >> config/darwin.h: flag_next_runtime && >> !TARGET_64BIT; \
> I don't know exactly what TARGET_64BIT is intended to mean, > architecture-independently, for Darwin and Solaris. For darwin, it means: #define TARGET_64BIT OPTION_ISA_64BIT from i386.h for darwin on x86, and on ppc, it means the same thing that TARGET_64BIT means in rs6000.h. The rough idea, we are going to generate code for a 64-bit target. (-m64 for example, on x86, that would be x86_64 and on ppc that would be powerpc64).
