Evan Cheng
8fbb31629f
Comments about operand cycles and pipeline forwarding pathes.
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llvm-svn: 115214
2010-09-30 22:01:50 +00:00
Evan Cheng
39c462b4f1
Add support to model pipeline bypass / forwarding.
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llvm-svn: 115005
2010-09-28 23:50:49 +00:00
Evan Cheng
b79a03a3ca
For each instruction itinerary class, specify the number of micro-ops each
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instruction in the class would be decoded to. Or zero if the number of
uOPs must be determined dynamically.
This will be used to determine the cost-effectiveness of predicating a
micro-coded instruction.
llvm-svn: 113513
2010-09-09 18:18:55 +00:00
Anton Korobeynikov
e325c693a5
Make processor FUs unique for given itinerary. This extends the limit of 32
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FU per CPU arch to 32 per intinerary allowing precise modelling of quite
complex pipelines in the future.
llvm-svn: 101754
2010-04-18 20:31:01 +00:00
Anton Korobeynikov
0401f43ddc
Since tblgen bug was fixed (thanks Jakob!) we don't need InstrStage2 hack anymore.
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llvm-svn: 100667
2010-04-07 18:21:41 +00:00
Anton Korobeynikov
b68aa8b5ab
Make use of new reserved/required scheduling stuff: introduce VFP and NEON locks to model domain cross stalls precisly.
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llvm-svn: 100646
2010-04-07 18:19:40 +00:00
Anton Korobeynikov
f93145e685
Initial support for different kinds of FU reservation.
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llvm-svn: 100645
2010-04-07 18:19:32 +00:00
Dan Gohman
4e86738fa7
Fix apostrophos.
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llvm-svn: 81856
2009-09-15 15:08:33 +00:00
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.
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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.
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llvm-svn: 78827
2009-08-12 18:31:53 +00:00
Evan Cheng
a19ef59d6c
Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files.
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llvm-svn: 59953
2008-11-24 07:34:46 +00:00
