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144 Commits

Author SHA1 Message Date
Evan Cheng 0097dd0d5a Add support to model pipeline bypass / forwarding. 
llvm-svn: 115005
 2010-09-28 23:50:49 +00:00
Evan Cheng 367a5df8cf For each instruction itinerary class, specify the number of micro-ops each 
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 7d62e33291 Make processor FUs unique for given itinerary. This extends the limit of 32 
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 0bdc6345e8 Initial support for different kinds of FU reservation. 
llvm-svn: 100645
 2010-04-07 18:19:32 +00:00
David Greene fb652a7a5c Have TableGen emit code that uses dbgs() rather than errs(). 
llvm-svn: 92738
 2010-01-05 17:47:41 +00:00
Sandeep Patel 598825e832 Show command-line args and features passed into backend in debug output. Approved by Evan Cheng. 
llvm-svn: 86797
 2009-11-11 03:23:46 +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 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
Daniel Dunbar 38a22bffdc Replace std::iostreams with raw_ostream in TableGen. 
- Sorry, I can't help myself.

 - No intended functionality change.

llvm-svn: 74742
 2009-07-03 00:10:29 +00:00
Anton Korobeynikov 08bf4c0f5a Propagate CPU string out of SubtargetFeatures 
llvm-svn: 72335
 2009-05-23 19:50:50 +00:00
Jim Grosbach 975c1cb41a fix a few spelling errors and typos 
llvm-svn: 67758
 2009-03-26 16:17:51 +00:00
Jim Grosbach 56938af9e2 lib/Target/SubtargetFeature.cpp asserts that the FeatureKV[] table be sorted 
by its first field, but TableGen doesn't actually enforce creating it that 
way. TableGen sorts the records that will be used to create it by the names 
of the records, not the Name field of those records.

This patch corrects the sort to use the "Name" field of the record as the 
sort key.

llvm-svn: 56106
 2008-09-11 17:05:32 +00:00
Chris Lattner bd7ccd0162 Stabilize 'getDwarfRegNumFull' output to not depend on random memory 
orders, part of PR2590

llvm-svn: 55359
 2008-08-26 06:43:25 +00:00
Chris Lattner 5ed17b67d2 Fix generation of multi-stage instruction itineraries. Patch by 
giuma.cordes@gmail.com

llvm-svn: 49276
 2008-04-06 17:38:14 +00:00
Dan Gohman bdc24adaaf A quick nm audit turned up several fixed tables and objects that were 
marked read-write. Use const so that they can be allocated in a
read-only segment.

llvm-svn: 48800
 2008-03-25 21:45:14 +00:00
Dale Johannesen 6ca3ccf519 Rewrite tblgen handling of subtarget features so 
it follows the order of the enum, not alphabetical.
The motivation is to make -mattr=+ssse3,+sse41
select SSE41 as it ought to.  Added "ignored"
enum values of 0 to PPC and SPU to avoid compiler
warnings.

llvm-svn: 47143
 2008-02-14 23:35:16 +00:00
Chris Lattner 8adcd9f32e remove attributions from utils. 
llvm-svn: 45419
 2007-12-29 20:37:13 +00:00
Bill Wendling e6182267d7 Add an "implies" field to features. This indicates that, if the current 
feature is set, then the features in the implied list should be set also.
The opposite is also enforced: if a feature in the implied list isn't set,
then the feature that owns that implies list shouldn't be set either.

llvm-svn: 36756
 2007-05-04 20:38:40 +00:00
Christopher Lamb 8996dce6ec Fix generation of certain scheduler itineraries. 
llvm-svn: 36338
 2007-04-22 09:04:24 +00:00
Jim Laskey 3f7d047a14 Ignore entries with blank names. 
llvm-svn: 32491
 2006-12-12 20:55:58 +00:00
Jim Laskey 8171e58bd9 Rollback changes to take a different tack. 
llvm-svn: 32488
 2006-12-12 19:26:50 +00:00
Jim Laskey 7c3cab9ddc Honor the command line specification for machine type. 
llvm-svn: 32483
 2006-12-12 16:07:33 +00:00
Reid Spencer 5314f04de5 Don't write out variables that are never used. 
llvm-svn: 31396
 2006-11-03 01:28:12 +00:00
Reid Spencer 2a82686563 For PR786: 
Remove unused variables.

llvm-svn: 31381
 2006-11-02 20:46:16 +00:00
Chris Lattner e7549961cf Don't make zero-sized static arrays 
llvm-svn: 28448
 2006-05-24 17:31:02 +00:00
Chris Lattner 73fbe145fd remove out of date comment 
llvm-svn: 26492
 2006-03-03 02:04:07 +00:00
Evan Cheng d98701c639 Subtarget feature can now set any variable to any value 
llvm-svn: 25678
 2006-01-27 08:09:42 +00:00
Chris Lattner ac8b13b32b There is at least a 'noitinerary' itinerary now 
llvm-svn: 25671
 2006-01-27 01:41:55 +00:00
Duraid Madina 018da4f5ef almost got the HP-UX tester up.. :) 
llvm-svn: 25051
 2005-12-30 14:56:37 +00:00
Jim Laskey d6d3afb05e 1. Remove ranges from itinerary data. 
2. Tidy up the subtarget emittined code.

llvm-svn: 24172
 2005-11-03 22:47:41 +00:00
Jim Laskey 802748cd61 Allow itineraries to be passed through the Target Machine. 
llvm-svn: 24139
 2005-11-01 20:06:59 +00:00
Jim Laskey 3763a50d82 Generate cpu to itinerary map. 
llvm-svn: 24121
 2005-10-31 17:16:01 +00:00
Chris Lattner 7ad0bed89f Rename Record::getValueAsListDef to getValueAsListOfDefs, to more accurately 
reflect what it is.
Convert some more code over to use it.

llvm-svn: 24072
 2005-10-28 22:49:02 +00:00
Jim Laskey dffe5978a3 Removed Mr. Smith from the code. 
llvm-svn: 24070
 2005-10-28 21:47:29 +00:00
Jim Laskey 1959575208 Add some commentary. 
llvm-svn: 24055
 2005-10-28 15:20:43 +00:00
Jeff Cohen b0aa47b043 Keep Visual Studio happy. 
llvm-svn: 24052
 2005-10-28 01:43:09 +00:00
Jim Laskey 86f002cc32 Now generating instruction itineraries for scheduling. Not my best work, but... 
llvm-svn: 24050
 2005-10-27 19:47:21 +00:00
Jim Laskey 777a26efc3 Simplify. 
llvm-svn: 24015
 2005-10-26 17:49:21 +00:00
Jim Laskey a2b5235fac Give full control of subtarget features over to table generated code. 
llvm-svn: 24013
 2005-10-26 17:30:34 +00:00
Jim Laskey 1b7369b1ae Refactored to make room for more stuff (scheduling info.) 
llvm-svn: 23975
 2005-10-25 15:16:36 +00:00
Chris Lattner 4f48e67c6c Add the needed #include, emit enums with the sizes of tables, remove 
definitions from the LLVM namespace, since they are all static.

llvm-svn: 23907
 2005-10-23 22:33:08 +00:00
Jim Laskey a1beea6c7d Sort the features and processor lists for the sake of search (and maintainers.) 
llvm-svn: 23879
 2005-10-22 07:59:56 +00:00
Jim Laskey cfda85ad91 New TableGen backends for subtarget information. Only command line stuff 
active now.  Scheduling itinerary next.

llvm-svn: 23869
 2005-10-21 19:00:04 +00:00