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modulo scheduling for IA64
- From: "Deepak B. Nayak" <deepakbn at csa dot iisc dot ernet dot in>
- To: gcc at gcc dot gnu dot org
- Date: Tue, 1 Oct 2002 19:56:12 +0530 (IST)
- Subject: modulo scheduling for IA64
hi
one more question.....
we have built data dependency graph for all the loops for modulo
scheduling..now for each edge we need to know the delay and distance..
nodes of our DDG are rtl insns
distance is no of iterations seperating the two operations involved...
how to calculate this...?
in dependence.c file there function have_dependence_p() which takes two
rtl insns and returns distance and direction vectors if there is
dependence....but these r vectors... we r not able to understand how we
get single value for distance....
regards
deepak