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58 Commits

Author SHA1 Message Date
NAKAMURA Takumi cb1a888fde Eliminate "const" from extern const to fix breakeage since r135184 on msvc. 
MSVC decorates (and distinguishes) "const" in mangler. It brought linkage error between "extern const" declarations and definitions.

llvm-svn: 135269
 2011-07-15 12:50:21 +00:00
Evan Cheng bc153d49b7 Next round of MC refactoring. This patch factor MC table instantiations, MC 
registeration and creation code into XXXMCDesc libraries.

llvm-svn: 135184
 2011-07-14 20:59:42 +00:00
Evan Cheng c5e6d2f519 - Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo 
and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.

llvm-svn: 134884
 2011-07-11 03:57:24 +00:00
Evan Cheng 4d1ca96bfc Eliminate asm parser's dependency on TargetMachine: 
- Each target asm parser now creates its own MCSubtatgetInfo (if needed).
- Changed AssemblerPredicate to take subtarget features which tablegen uses
  to generate asm matcher subtarget feature queries. e.g.
  "ModeThumb,FeatureThumb2" is translated to
  "(Bits & ModeThumb) != 0 && (Bits & FeatureThumb2) != 0".

llvm-svn: 134678
 2011-07-08 01:53:10 +00:00
Evan Cheng 1a72add615 Compute feature bits at time of MCSubtargetInfo initialization. 
llvm-svn: 134606
 2011-07-07 07:07:08 +00:00
Evan Cheng 0d639a28aa Rename TargetSubtarget to TargetSubtargetInfo for consistency. 
llvm-svn: 134259
 2011-07-01 21:01:15 +00:00
Evan Cheng 54b68e3432 - Added MCSubtargetInfo to capture subtarget features and scheduling 
itineraries.
- Refactor TargetSubtarget to be based on MCSubtargetInfo.
- Change tablegen generated subtarget info to initialize MCSubtargetInfo
  and hide more details from targets.

llvm-svn: 134257
 2011-07-01 20:45:01 +00:00
Evan Cheng fe6e405e8c Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to 
be the first encoded as the first feature. It then uses the CPU name to look up
features / scheduling itineray even though clients know full well the CPU name
being used to query these properties.

The fix is to just have the clients explictly pass the CPU name!

llvm-svn: 134127
 2011-06-30 01:53:36 +00:00
Evan Cheng 8264e272a9 Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC. 
llvm-svn: 134049
 2011-06-29 01:14:12 +00:00
Evan Cheng a2e61292f0 Increase SubtargetFeatureKV Value and Implies fields to 64 bits since some targets are getting very close to 32 subtarget features. Also teach tablegen to error when there are more than 64 features to guard against undefined behavior. rdar://9282332 
llvm-svn: 129590
 2011-04-15 19:35:46 +00:00
Andrew Trick 8a05f66139 Add annotations to tablegen-generated processor itineraries, or replace them with something meaningful. I want to be able to read and debug the generated tables. 
llvm-svn: 128703
 2011-04-01 02:22:47 +00:00
Andrew Trick db6ed64529 whitespace 
llvm-svn: 128701
 2011-04-01 01:56:55 +00:00
Chris Lattner 77d369c8eb eliminate the Records global variable, patch by Garrison Venn! 
llvm-svn: 121659
 2010-12-13 00:23:57 +00:00
Evan Cheng 4a010fd1ea 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 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