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RE: inerting nop's using the DFA scheduler
- From: "Naveen Sharma, Noida" <naveens at noida dot hcltech dot com>
- To: Danish Samad <danishsamad at yahoo dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Thu, 11 Jul 2002 16:19:48 +0530
- Subject: RE: inerting nop's using the DFA scheduler
> I have been studying how to use the DFA scheduler and
> I cant seem to figure out how the scheduler inserts
> nops in a pipeline.
IIRC, the scheduler does not insert nops because of subsequent
optimizations moving them around.
There is a provision for inserting "nops" for VLIW slots
if the target hook TARGET_SCHED_INIT_DFA_BUBBLES is defined.
(and that too if multi-pass insn scheduling is enabled)
Naveen