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6 Commits

Author SHA1 Message Date
David Goodwin
d65007a4a3 Extend the instruction itinerary model to include the ability to indicate the def and use cycle for each operand. This additional information is optional, so existing itineraries do not need to be changed. 
llvm-svn: 79247
 2009-08-17 16:02:57 +00:00
David Goodwin
90e7f9873c Enhance the InstrStage object to enable the specification of an Itinerary with overlapping stages. The default is to maintain the current behavior that the "next" stage immediately follows the previous one. 
llvm-svn: 78827
 2009-08-12 18:31:53 +00:00
David Goodwin
2686178489 Allow a zero cycle stage to reserve/require a FU without advancing the cycle counter. 
llvm-svn: 78736
 2009-08-11 22:38:43 +00:00
Daniel Dunbar
bc15317f5f Fix a -Asserts warning. 
- Since the function is never called in NDEBUG mode, just dropped the DEBUG()
   uses here.

llvm-svn: 78649
 2009-08-11 06:22:47 +00:00
David Goodwin
922f4878cd Replace DOUT. 
llvm-svn: 78634
 2009-08-11 01:44:26 +00:00
David Goodwin
3245141543 Post RA scheduler changes. Introduce a hazard recognizer that uses the target schedule information to accurately model the pipeline. Update the scheduler to correctly handle multi-issue targets. 
llvm-svn: 78563
 2009-08-10 15:55:25 +00:00