Eric Fisher <[EMAIL PROTECTED]> writes: > Thanks for the help. Since ARM has condition codes, I'm wondering why it uses > a psuedo register internally to represent things that use or set the > condition codes? > I think it should use CPSR directly.
ARM actually does use the CPSR directly. See CC_REGNUM. The comparison instructions are not generated directly because ARM uses different comparison modes depending upon how the comparison is being used, and it uses those modes for optimizations. See arm_select_cc_mode in arm.c. See uses of CC_NOOV in arm.md. Ian
