"Balaji V. Iyer" <[EMAIL PROTECTED]> writes: > I am adding a DFA scheduler for OpenRISC Processor in GCC. (I have not > changed anything else). I don't see a difference in assembly at all. I > would like to know how to make it recognize that there is a DFA > scheduler.
Which sources are you working with? In 3.4, you need to define the target hook TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE and have it return a non-zero value. With newer sources, just make sure that INSN_SCHEDULING is defined in the generated file insn-attr.h. And, of course, compile with -O2 or -fschedule-insns. You can compile with -dS -dR and look at the debugging dump files. You can use -fsched-verbose=N to get more detailed information. Ian
