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45 Commits

Author SHA1 Message Date
Evan Cheng
b44d480808 Model Cortex-a9 load to SUB, RSB, ADD, ADC, SBC, RSC, CMN, MVN, or CMP 
pipeline forwarding path.

llvm-svn: 115098
 2010-09-29 22:42:35 +00:00
Evan Cheng
39c462b4f1 Add support to model pipeline bypass / forwarding. 
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 
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 
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
f93145e685 Initial support for different kinds of FU reservation. 
llvm-svn: 100645
 2010-04-07 18:19:32 +00:00
David Greene
eef5772b46 Have TableGen emit code that uses dbgs() rather than errs(). 
llvm-svn: 92738
 2010-01-05 17:47:41 +00:00
Sandeep Patel
a167903217 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
3ac3dcacc7 Make the end-of-itinerary mark explicit. Some cleanup. 
llvm-svn: 82709
 2009-09-24 20:22:50 +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. 
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
Daniel Dunbar
95f6034ab6 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
34fc85e2ee Propagate CPU string out of SubtargetFeatures 
llvm-svn: 72335
 2009-05-23 19:50:50 +00:00
Jim Grosbach
2714e9fd55 fix a few spelling errors and typos 
llvm-svn: 67758
 2009-03-26 16:17:51 +00:00
Jim Grosbach
f53af44e09 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
e589d360a1 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
a8d3c512dd 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
22002efa15 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
6cb8a628a2 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
c4006845a6 remove attributions from utils. 
llvm-svn: 45419
 2007-12-29 20:37:13 +00:00
Bill Wendling
dc82c5a195 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
56768513ee Fix generation of certain scheduler itineraries. 
llvm-svn: 36338
 2007-04-22 09:04:24 +00:00
Jim Laskey
023e836c5b Ignore entries with blank names. 
llvm-svn: 32491
 2006-12-12 20:55:58 +00:00
Jim Laskey
b039172d58 Rollback changes to take a different tack. 
llvm-svn: 32488
 2006-12-12 19:26:50 +00:00
Jim Laskey
8a5cea99ed Honor the command line specification for machine type. 
llvm-svn: 32483
 2006-12-12 16:07:33 +00:00
Reid Spencer
d41f385ed9 Don't write out variables that are never used. 
llvm-svn: 31396
 2006-11-03 01:28:12 +00:00
Reid Spencer
0d18610609 For PR786: 
Remove unused variables.

llvm-svn: 31381
 2006-11-02 20:46:16 +00:00
Chris Lattner
b3aa8ccfe0 Don't make zero-sized static arrays 
llvm-svn: 28448
 2006-05-24 17:31:02 +00:00
Chris Lattner
b878804a5f remove out of date comment 
llvm-svn: 26492
 2006-03-03 02:04:07 +00:00
Evan Cheng
77885c204d Subtarget feature can now set any variable to any value 
llvm-svn: 25678
 2006-01-27 08:09:42 +00:00
Chris Lattner
a932c5aafb There is at least a 'noitinerary' itinerary now 
llvm-svn: 25671
 2006-01-27 01:41:55 +00:00
Duraid Madina
c4a1bfd13d almost got the HP-UX tester up.. :) 
llvm-svn: 25051
 2005-12-30 14:56:37 +00:00
Jim Laskey
42681c1d58 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
4cb1e29b27 Allow itineraries to be passed through the Target Machine. 
llvm-svn: 24139
 2005-11-01 20:06:59 +00:00
Jim Laskey
d79749c8a5 Generate cpu to itinerary map. 
llvm-svn: 24121
 2005-10-31 17:16:01 +00:00
Chris Lattner
06c5e018ef 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
b86d73937d Removed Mr. Smith from the code. 
llvm-svn: 24070
 2005-10-28 21:47:29 +00:00
Jim Laskey
dba6376b92 Add some commentary. 
llvm-svn: 24055
 2005-10-28 15:20:43 +00:00
Jeff Cohen
744bfe72c0 Keep Visual Studio happy. 
llvm-svn: 24052
 2005-10-28 01:43:09 +00:00
Jim Laskey
1910cbd4dc Now generating instruction itineraries for scheduling. Not my best work, but... 
llvm-svn: 24050
 2005-10-27 19:47:21 +00:00
Jim Laskey
75494b3a8b Simplify. 
llvm-svn: 24015
 2005-10-26 17:49:21 +00:00
Jim Laskey
9ce53d8411 Give full control of subtarget features over to table generated code. 
llvm-svn: 24013
 2005-10-26 17:30:34 +00:00
Jim Laskey
bb03da2612 Refactored to make room for more stuff (scheduling info.) 
llvm-svn: 23975
 2005-10-25 15:16:36 +00:00
Chris Lattner
b621e451ba 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
f0f90be71c 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
c2e76396fc 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