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13 Commits

Author SHA1 Message Date
David Goodwin 8501dbbe10 Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed. 
llvm-svn: 85939
 2009-11-03 20:57:50 +00:00
Evan Cheng 9c096840a0 80 column violation. 
llvm-svn: 84244
 2009-10-16 05:18:39 +00:00
David Goodwin bf97147a7e Make the end-of-itinerary mark explicit. Some cleanup. 
llvm-svn: 82709
 2009-09-24 20:22:50 +00:00
David Goodwin 74b79566f6 Use early returns. 
llvm-svn: 82554
 2009-09-22 16:47:52 +00:00
Duncan Sands bc74cae983 Use delete[] to match new[] (found by valgrind). 
llvm-svn: 80997
 2009-09-04 11:59:43 +00:00
David Goodwin 1d5d245453 Don't crash when target has no itineraries. 
llvm-svn: 80962
 2009-09-03 22:48:51 +00:00
Bill Wendling a2c4594997 Normalize how the 'namespace llvm {' is used in this file. 
llvm-svn: 79750
 2009-08-22 20:08:44 +00:00
David Goodwin d813cbfe72 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 b369ee4c48 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 fd5defed1d 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 0c04f2b454 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 f20236ac83 Replace DOUT. 
llvm-svn: 78634
 2009-08-11 01:44:26 +00:00
David Goodwin 6021b4dccc 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