632f5f4934
Off-tree build support: Warn the user if FileCheck cannot be found.
...
llvm-svn: 152921
2012-03-16 13:24:42 +00:00
95c84eab5c
Minor change: Use config.polly_obj_root to locate Polly's library,
...
so lit find Polly's library in off-tree build.
llvm-svn: 152920
2012-03-16 13:24:34 +00:00
8a5070213a
ScheduleOptimizer: Do not get dependences, if we do not calculate a schedule
...
This solves the 'isl_ctx freed, but some objects still reference it' problem
reported in PR12276.
llvm-svn: 152917
2012-03-16 11:51:41 +00:00
371badaa47
SCEVValidator: Ensure that parameters are recorded correctly
...
This also fixes UMax where we did not correctly keep track of the parameters.
Fixes PR12275.
Reported-By: Sebastian Pop <sebpop@gmail.com>
llvm-svn: 152913
2012-03-16 10:16:28 +00:00
540757b09c
ScevValidator: Add printer for ValidatorResult
...
llvm-svn: 152912
2012-03-16 10:12:37 +00:00
c0f53b1c00
Polly-test: Add a cmake option "POLLY_TEST_DISABLE_BAR". We can enable
...
this option in the configure step of Polly's builder to get more readable
output from the stdio log.
llvm-svn: 152910
2012-03-16 09:04:09 +00:00
73e53f510a
More AddUsersIfInteresting related fix.
...
llvm-svn: 152909
2012-03-16 08:31:24 +00:00
741f8d666f
IndVarSimplify: Adpat to IVUsers::AddUsersIfInteresting change.
...
llvm-svn: 152908
2012-03-16 08:26:12 +00:00
0e979d1628
www: Fix german special characters
...
llvm-svn: 152800
2012-03-15 13:55:38 +00:00
126af46c4c
www: Add another GPGPU publication
...
llvm-svn: 152799
2012-03-15 13:54:12 +00:00
f41d001384
Memaccess: Updating Documentation
...
Adding documentation for changes in coefficients of induction
variables.
llvm-svn: 152795
2012-03-15 11:40:05 +00:00
00d898d6b0
CodeGen: Call isl_set_copy() within the loop
...
llvm-svn: 152793
2012-03-15 09:34:58 +00:00
2da263e3b6
CodeGen: Start variables with uppercase letters
...
llvm-svn: 152792
2012-03-15 09:34:55 +00:00
d596b37eb0
CodeGen: Get analyses from the Pass instance
...
llvm-svn: 152791
2012-03-15 09:34:52 +00:00
e9ffea2ccf
CodeGen: Introduce helper function to get pointer to int
...
llvm-svn: 152790
2012-03-15 09:34:48 +00:00
b20b49e3f0
Memaccess: Removing unwanted code
...
When the code is moved to IslGenerator class there is no use for
IslPwAffUserInfo.
llvm-svn: 152612
2012-03-13 05:51:44 +00:00
3cbe5cfff3
Remove FinalRead
...
The FinalRead statement represented a virtual read that is executed after the
SCoP. It was used when we verified the correctness of a schedule by checking if
it yields the same FLOW dependences as the original code. This is only works, if
we have a final read that reads all memory at the end of the SCoP.
We now switched to just checking if a schedule does not introduce negative
dependences and also consider WAW WAR dependences. This restricts the schedules
a little bit more, but we do not have any optimizer that would calculate a more
complex schedule. Hence, for now final reads are obsolete.
llvm-svn: 152319
2012-03-08 15:21:51 +00:00
45ed487a9c
Dependences: Fix typo
...
llvm-svn: 152318
2012-03-08 15:21:42 +00:00
9ffa550dd9
www: Really fix it
...
llvm-svn: 152311
2012-03-08 12:02:59 +00:00
9206404faf
www: Fix link to image
...
llvm-svn: 152310
2012-03-08 12:02:10 +00:00
f67424ef96
www: Move the Polly architecture to the documentation
...
llvm-svn: 152309
2012-03-08 11:59:43 +00:00
3495b42f9d
www: Point to the memaccess documentation
...
llvm-svn: 152308
2012-03-08 11:55:27 +00:00
7a82da99b1
www: Simplify bugs text
...
llvm-svn: 152307
2012-03-08 11:45:49 +00:00
e586f0ec5c
www: Merge Examples with Documentation section
...
llvm-svn: 152306
2012-03-08 11:37:39 +00:00
f9250a1cb0
www: Update todo page
...
llvm-svn: 152305
2012-03-08 11:31:54 +00:00
62afff33c8
Dependences: Simplify isParallelDimension
...
llvm-svn: 152238
2012-03-07 17:42:49 +00:00
04734a4843
Dependences: Restructure and Document code
...
llvm-svn: 152237
2012-03-07 17:42:45 +00:00
9691d23d37
Dependences: Prettify the header slightly
...
llvm-svn: 152236
2012-03-07 17:42:39 +00:00
1d8c0d799c
Dependences: Remove unused no_source information
...
llvm-svn: 152235
2012-03-07 17:42:36 +00:00
5c0e7190ff
Dependences: Simplify the check if a new scattering is valid.
...
We now just check if the new scattering would create non-positive dependences.
This is a lot faster than recalculating dependences (which is especially slow
on tiled code).
llvm-svn: 152230
2012-03-07 16:10:40 +00:00
29d7255baf
www: Fix some command lines in the examples
...
llvm-svn: 152229
2012-03-07 14:30:54 +00:00
3c2efba7ff
CodeGen: Fix typo 'form' -> 'from'
...
Suggested by: Sebastian Pop <sebpop@gmail.com>
llvm-svn: 152109
2012-03-06 07:38:57 +00:00
55d5208eae
CodeGen: Document and beautify the parts of the BlockGenerators
...
llvm-svn: 151917
2012-03-02 15:20:39 +00:00
df3823750e
CodeGen: Pass the scalar maps properly
...
llvm-svn: 151916
2012-03-02 15:20:35 +00:00
8367e0c3d2
CodeGen: Prettify
...
llvm-svn: 151915
2012-03-02 15:20:31 +00:00
260e86d3f0
CodeGen: Style
...
llvm-svn: 151914
2012-03-02 15:20:28 +00:00
08a8238b7a
CodeGen: Move domain into the VectorBlockGenerator
...
llvm-svn: 151913
2012-03-02 15:20:24 +00:00
f6beec674e
CodeGen: Simplify the generation of a splat
...
llvm-svn: 151912
2012-03-02 15:20:21 +00:00
415245def5
CodeGen: Prettify function
...
llvm-svn: 151911
2012-03-02 15:20:17 +00:00
80998e7618
CodeGen: Create separate VectorBlockGenerator
...
llvm-svn: 151907
2012-03-02 11:27:28 +00:00
642c41116d
CodeGen: Extract code generation for isl types into its own class
...
llvm-svn: 151906
2012-03-02 11:27:25 +00:00
44d169552b
CodeGen: Remove unneeded member variable
...
llvm-svn: 151905
2012-03-02 11:27:21 +00:00
32152cbd1c
CodeGen: Extract code into the new function copyVectorInstruction
...
llvm-svn: 151904
2012-03-02 11:27:18 +00:00
fc1153fb09
CodeGen: Sink loop to iterate vector lanes down into copyInstruction
...
llvm-svn: 151903
2012-03-02 11:27:15 +00:00
8b4bf8b2fa
CodeGenerator: Rename functions to show they produce vector code
...
llvm-svn: 151902
2012-03-02 11:27:11 +00:00
b35d9c1dfc
Fix typo
...
llvm-svn: 151901
2012-03-02 11:27:08 +00:00
8927a44f90
CodeGen: No need to forward the vector dimension
...
llvm-svn: 151900
2012-03-02 11:27:05 +00:00
f81a691ef7
CodeGen: Store the vector width in the block generator
...
This allows us to remove a lot of redundant parameters.
llvm-svn: 151899
2012-03-02 11:27:02 +00:00
32386750a6
CodeGen: Remove dead code
...
llvm-svn: 151898
2012-03-02 11:26:59 +00:00
8412cda5ad
Codegen: Add Pass as a member variable of BlockGenerator
...
llvm-svn: 151897
2012-03-02 11:26:55 +00:00
14bcbd5380
CodeGen: Simplify and Prettify code
...
llvm-svn: 151896
2012-03-02 11:26:52 +00:00
c941ede854
CodeGen: Hide the private implementation of the block generator
...
llvm-svn: 151895
2012-03-02 11:26:49 +00:00
262df3b9e7
CodeGen: Start with uppercase letter
...
llvm-svn: 151894
2012-03-02 11:26:46 +00:00
ce3f537ae2
CodeGen: Only check once if a loop is parallel
...
Suggested by: Sebastian Pop <sebpop@gmail.com>
llvm-svn: 151893
2012-03-02 11:26:42 +00:00
2e04dad751
www: Fix typo founded -> funded
...
Found-By: Christian Lengauer
llvm-svn: 151810
2012-03-01 15:02:21 +00:00
e550fa2f95
www: Fix french special characters
...
llvm-svn: 150959
2012-02-20 14:03:56 +00:00
be3df7b3ee
Add information, that Polly became a real LLVM project
...
llvm-svn: 150955
2012-02-20 08:41:55 +00:00
7cde0845b5
www: Update links polly.grosser.es -> polly.llvm.org
...
llvm-svn: 150954
2012-02-20 08:41:51 +00:00
92f5480f04
ScheduleOpt: Add option to bound scheduling coefficients of dimensions.
...
llvm-svn: 150953
2012-02-20 08:41:47 +00:00
6b675e3108
Update isl
...
This version of isl, contains some recently committed scheduler patches.
llvm-svn: 150952
2012-02-20 08:41:44 +00:00
4d63b9d0f9
ScheduleOptimizer: Dump the calculated schedule in debug mode
...
llvm-svn: 150951
2012-02-20 08:41:21 +00:00
992e60ca57
ScheduleOpt: Add option to bound constant term coefficients
...
llvm-svn: 150950
2012-02-20 08:41:15 +00:00
9a44b97913
Revert "CodeGeneration: Implement ceild/floord exactly as CLooG does"
...
I think I did not get the implementation right. As the current implementation
works well, we will just stick with it for now.
llvm-svn: 150691
2012-02-16 14:13:19 +00:00
26fb5efc6d
www: Add 'pet' paper to the publications
...
llvm-svn: 150676
2012-02-16 09:59:34 +00:00
62a3c96e5d
CodeGen: Code following a clast_guard comes after the merge block
...
llvm-svn: 150675
2012-02-16 09:56:21 +00:00
eeafc867ed
RegisterPasses: Allow to print the CFG right after polly
...
llvm-svn: 150674
2012-02-16 09:56:17 +00:00
e04f318772
CodeGeneration: Implement ceild/floord exactly as CLooG does
...
llvm-svn: 150673
2012-02-16 09:56:14 +00:00
906eafe32c
CodeGen: Simplify code slightly
...
llvm-svn: 150672
2012-02-16 09:56:10 +00:00
099cb16700
RegisterPasses: Add -polly-run-export-cloog option
...
llvm-svn: 150671
2012-02-16 09:56:07 +00:00
f12cea4257
CodeGen: Update the BasicBlock pointer correctly when creating 'polly.split...'
...
Problem reported by: Ryan Taylor <ryta1203@gmail.com>
llvm-svn: 150577
2012-02-15 09:58:53 +00:00
cb47dfeb96
CodeGen: Retain the old BB names within the original SCoP
...
llvm-svn: 150576
2012-02-15 09:58:50 +00:00
b61e6318ac
CodeGen: Name stmt bbs 'polly.stmt.' + OriginalName
...
llvm-svn: 150575
2012-02-15 09:58:46 +00:00
1e03ad7213
ScheduleOpt: Only get RAW dependences if we asked for raw
...
llvm-svn: 150574
2012-02-15 09:58:42 +00:00
1deda29598
ScheduleOpt: Allow to configure for which dependences to optimize
...
We can either optimize for RAW dependences or for all dependences.
For the moment, I do not see a big difference here.
llvm-svn: 150484
2012-02-14 14:02:48 +00:00
00383a75b8
CodeGen: Get dependences for validity and proximity separately
...
This change itself should not change functionality, but it will make it easier
to support use different dependence kinds in for validity and proximity
constraints.
llvm-svn: 150483
2012-02-14 14:02:44 +00:00
5f9a762056
ScopInfo: Add Scop::getDomains()
...
llvm-svn: 150482
2012-02-14 14:02:40 +00:00
cef36d5b99
Copy IndVarSimplify pass from LLVM to Polly
...
This allows us to enable -enable-iv-rewrite by default and releases LLVM from
the burdon to keep that feature. This is an intermediate step. We plan to soon
remove the need for rewritten induction variables entirely.
llvm-svn: 150481
2012-02-14 14:02:33 +00:00
0ac9214c2f
Recommit "CodeGen: Maintain a valid CFG during code generation"
...
When I first tried to commit this patch, the builder pointed after generation
of a loop still into the loop body. This means that code that was supposed to
be generated after the loop was generated right into the loop body. We fixed
this by pointing the builder to the BB after the loop, as soon as code
generation of the loop body itself is finished.
llvm-svn: 150480
2012-02-14 14:02:27 +00:00
1773fb1c00
Revert "CodeGen: Maintain a valid CFG during code generation"
...
This commit contained some bugs. Revert it until I get around to fix them.
llvm-svn: 150431
2012-02-13 23:31:43 +00:00
98610eed34
ScheduleOptimizer: Change vars to start with uppercase letter
...
llvm-svn: 150430
2012-02-13 23:31:39 +00:00
04eadc476e
tests: Replace . by %s
...
llvm-svn: 150377
2012-02-13 12:29:43 +00:00
5c853bab78
CodeGen: Remove unused variable.
...
llvm-svn: 150376
2012-02-13 12:29:34 +00:00
0b6c613a10
CodeGen: Maintain a valid CFG during code generation
...
Before this change we built the CFG such that it was only valid after code was
fully generated. During code generation itself, it was often incomplete. After
this change always maintain a valid CFG. This will later allow us to use the
SCEVExpander during code generation. This is the first step to get rid of the
independent blocks pass.
llvm-svn: 150339
2012-02-12 12:09:53 +00:00
194beea739
CodeGen: Remove unused instruction
...
llvm-svn: 150338
2012-02-12 12:09:49 +00:00
8518bbe39f
CodeGen: Always name merge block
...
llvm-svn: 150337
2012-02-12 12:09:46 +00:00
bd608a8949
CodeGen: Start variable names with uppercase letter.
...
llvm-svn: 150336
2012-02-12 12:09:41 +00:00
0dbbdd7637
Codegen: Give split and merge basic blocks better names
...
llvm-svn: 150335
2012-02-12 12:09:37 +00:00
d855cc5720
CodeGen: Further improve style
...
llvm-svn: 150334
2012-02-12 12:09:32 +00:00
b1c9599faa
CodeGen: Move generation of OpenMP out of the way
...
We also fix some style issues. This change contains no functional change.
llvm-svn: 150333
2012-02-12 12:09:27 +00:00
a2a9b9a3e8
RegisterPasses: Make sure to always execute the SCoPInfo pass
...
llvm-svn: 149871
2012-02-06 14:53:51 +00:00
c327932cf5
ScopInfo: Simplify some isl code
...
llvm-svn: 149503
2012-02-01 14:23:36 +00:00
5772e65be0
CodeGeneration: Rephrase comment slightly
...
llvm-svn: 149502
2012-02-01 14:23:33 +00:00
bda1f8f808
CodeGeneration: Order includes alphabetically
...
llvm-svn: 149501
2012-02-01 14:23:29 +00:00
ab1f7c4ee3
www: More typos
...
Pointed out by Chad Rosier
llvm-svn: 149456
2012-02-01 00:08:10 +00:00
f316b38e20
www: Add missing -mllvm to documentation
...
Found by Ryan Taylor
llvm-svn: 149415
2012-01-31 20:24:21 +00:00
1f1daa9ac7
www: Spelling fixes
...
Reported by Sebastian Pop
llvm-svn: 149410
2012-01-31 19:54:50 +00:00
1d348673e0
Add a sceleton for a polyhedral dead code elimination.
...
Such a dead code elimination can remove redundant stores to arrays. It can also
eliminate calculations where the results are stored to memory but where they are
overwritten before ever being read. It may also fix bugs like:
http://llvm.org/bugs/show_bug.cgi?id=5117
This commit just adds a sceleton without any functionality.
If anybody is interested to learn about polyhedral optimizations this would be
a good task. Well definined, self contained and pretty simple. Ping me if you
want to start and you need some pointers to get going.
llvm-svn: 149386
2012-01-31 14:00:27 +00:00
8ad6bc339a
Schedule: Sort includes and remove useless ones
...
llvm-svn: 149383
2012-01-31 13:26:29 +00:00
ccda0d5060
www: Add news about the improved isl scheduling support
...
llvm-svn: 149374
2012-01-31 09:13:12 +00:00
62f55bc3b0
www: Remove PoCC from the prerequisites
...
llvm-svn: 149373
2012-01-31 08:50:23 +00:00
3d8bec8db9
polly.sh: Do not automatically install scoplib either.
...
It is only needed for PoCC. We may update our openscop support which is
expected to be wider used. If this is the case we could automatically build
openscop.
llvm-svn: 149372
2012-01-31 08:50:19 +00:00
86b6b62c2c
www: Move PoCC to the end of the installation section
...
llvm-svn: 149371
2012-01-31 08:50:16 +00:00
5d38c64b79
polly.sh: Do not build PoCC automatically
...
As we now have a scheduler that works, I do not believe a lot of people need
PoCC right ahead. People who want to do an in depth investigation of the
different schedulers can install it as well manually.
llvm-svn: 149370
2012-01-31 08:50:12 +00:00
9f75aba51f
Remove leftover constant
...
llvm-svn: 149290
2012-01-30 22:46:22 +00:00
18aa54cbae
Scheduling: Limiting the constant term is not necessary any more
...
Due to our gist simplifications, limiting the constant term does not seem to
be necessary any more.
Pointed out by Sven Verdoolaege
llvm-svn: 149288
2012-01-30 22:44:05 +00:00
a4ea90b88c
Typo: Maxize -> Mazimize
...
Found by Sebastian Pop.
llvm-svn: 149287
2012-01-30 22:43:56 +00:00
50ff31dabe
Scheduling: Set fusion strategy to minimal
...
This has shown better results for 2mm, 3mm and a couple of other benchmarks.
After this we show consistenly better results as PoCC with maxfuse. We need
to see if PoCC can also give better results with another fusion strategy.
llvm-svn: 149267
2012-01-30 19:38:58 +00:00
95e860c19c
Scheduling: Add option to disable schedule_maximise_band_depth
...
maximise_band_depth does not seem to have any effect for now, but it may help to
increase the amount of tileable loops. We expose the flag to be able to analyze
its effects when looking into individual benchmarks.
llvm-svn: 149266
2012-01-30 19:38:54 +00:00
b3ad85b03c
Scheduler: Allow to select the fusion strategy
...
llvm-svn: 149265
2012-01-30 19:38:50 +00:00
42152ff3c7
Scheduling: Use original schedule if we cannot find a new one
...
After this we can now compile all polybench 2.0 kernels without any compiler
crash.
llvm-svn: 149264
2012-01-30 19:38:47 +00:00
a26db47083
Scheduler: Simplify dependences by default (only isl)
...
This speeds up the scheduler by orders of magnitude and in addition yields often
to a better schedule.
With this we can compile all polybench kernels with less than 5x compile time
overhead. In general the overhead is even less than 2-3x. This is still with
running a lot of redundant passes and no compile time tuning at all. There are
several obvious areas where we can improve here further.
There are also two test cases where we cannot find a schedule any more (cholesky
and another). I will look into them later on.
With this we have a very solid base line from which we can start to optimize
further.
llvm-svn: 149263
2012-01-30 19:38:43 +00:00
061e20d2f8
Use isl version: 3c66541593a6bf3b5a3d35d31567abe6c9e5a04b
...
This allows us to set the fusion strategy and to gist-simplify union_maps.
llvm-svn: 149262
2012-01-30 19:38:40 +00:00
bc3bc42491
Dependences: Coalesce the dependences before returning them.
...
llvm-svn: 149261
2012-01-30 19:38:36 +00:00
a132155bd8
RegisterPass: Expose functions to register Polly passes
...
llvm-svn: 149240
2012-01-30 09:07:50 +00:00
a1f093465b
Disable some clang warnings in imported JSON code.
...
llvm-svn: 149239
2012-01-30 09:07:45 +00:00
fc98d453df
Remove unneeded default case
...
This silences a clang warning.
llvm-svn: 149073
2012-01-26 19:53:01 +00:00
9bc5eb08c2
CodeGen: Separate declaration and definition of ClastStmtCodeGen
...
llvm-svn: 148814
2012-01-24 16:42:32 +00:00
bb137e3f03
CodeGen: Separate declaration and definition of ClastExpCodeGen
...
llvm-svn: 148813
2012-01-24 16:42:28 +00:00
e5b4232572
CodeGen: Use getNullValue to simplify some code
...
llvm-svn: 148812
2012-01-24 16:42:25 +00:00
70e8cdbbd1
CodeGen: Separate declaration and definitions of BlockGenerator
...
llvm-svn: 148811
2012-01-24 16:42:21 +00:00
28dd48613e
ScopInfo: Add isStrideX to unify stride checking
...
llvm-svn: 148810
2012-01-24 16:42:16 +00:00
5013c699e4
Dependences: Simplify code
...
llvm-svn: 148620
2012-01-21 02:38:27 +00:00
030b0d77ed
ScopInfo: Further style improvements
...
llvm-svn: 148328
2012-01-17 20:39:11 +00:00
dea982300e
ScopInfo: Simplify some code II
...
llvm-svn: 148327
2012-01-17 20:34:27 +00:00
78d8a3d505
ScopInfo: Simplify some code
...
llvm-svn: 148326
2012-01-17 20:34:23 +00:00
5a4c2e55dc
www: Move automatic polly installation to a more prominent place
...
llvm-svn: 148307
2012-01-17 14:44:35 +00:00
af9977dc10
www: Fix clang path in polly.sh script
...
llvm-svn: 148306
2012-01-17 14:37:45 +00:00
396fa1e505
Fix clang svn address
...
llvm-svn: 148248
2012-01-16 18:50:43 +00:00
254328509f
Describe how to optionally build the matching clang version.
...
llvm-svn: 148238
2012-01-16 15:19:19 +00:00
ea6c99c1d9
Memaccess: Removing some unwanted code
...
llvm-svn: 148100
2012-01-13 06:02:13 +00:00
3f2f65f1f8
add polly.sh script
...
llvm-svn: 147543
2012-01-04 20:11:18 +00:00
0e2c1bff8f
www: Papers about iterative compilation and non static control
...
llvm-svn: 147444
2012-01-03 10:10:05 +00:00
aec0a97a41
Add Udays PhD thesis
...
llvm-svn: 147443
2012-01-03 10:00:55 +00:00
c1610132ef
Update publications
...
- Add the LLVM Developer Meeting 2012 talk
- Add papers used within Polly and papers interesting to read in general
llvm-svn: 147442
2012-01-03 09:50:29 +00:00
e9d3d21988
Happy new year 2012!
...
llvm-svn: 147395
2012-01-01 08:16:56 +00:00
a71989c94e
Memaccess: Using isl_map_dim_max
...
Use isl_map_dim_max to extract the details of the changed
access relation. Only constant access functions are supported
now.
llvm-svn: 147305
2011-12-28 02:48:26 +00:00
a187964bac
Support non-affine access functions in Polly.
...
In case we can not analyze an access function, we do not discard the SCoP, but
assume conservatively that all memory accesses that can be derived from our base
pointer may be accessed.
Patch provided by: Marcello Maggioni <hayarms@gmail.com>
llvm-svn: 146972
2011-12-20 10:43:14 +00:00
f5c8ae5f4b
Adapt to move of isSafeToSpeculativelyExecute into another header.
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llvm-svn: 146727
2011-12-16 08:27:42 +00:00
e1bc007afa
Allow to run the Polly preopt passes with -O0
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To extract a preoptimized LLVM-IR file from a C-file run:
clang -Xclang -load -Xclang LLVMPolly.so -O0 -mllvm -polly file.c -S -emit-llvm
On the generated file you can directly run passes such as:
'opt -view-scops file.s'
llvm-svn: 146560
2011-12-14 12:21:31 +00:00
5c28af1c23
www: Enable mp4 version of the developer meeting talk
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llvm-svn: 146559
2011-12-14 12:21:27 +00:00
f4bea399a9
Scheduler: Try to maximize the band depth
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Previously the scheduler was splitting bands at the level at which it detected
that the splitting of the band is necessary. This may introduce an additional
level of bands, that can be avoided by backtracking and splitting on a higher
level. Additional splits reduce the number of loops that can be tiled, such that
avoiding splits and maximizing the band depth seems preferable.
As a first data point we looked at 2mm and 3mm from the polybench test suite.
For both maximizing the tilable bands results in a significant (5-10x)
performance improvement.
This patch enables the isl scheduler option to maximize the band depth.
llvm-svn: 146557
2011-12-14 08:58:43 +00:00
768140c6e1
Scheduler: Set maximal constant term
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If larger coefficients appear as part of the input dependences, the schedule
calculation can take a very long time. We observed that the main overhead in
this calculation is due to optimizing the constant coefficients. They are
misused to increase locality by merging several unrelated dimensions into a
single dimension. This unwanted optimization increases the complexity of the
generated code and furthermore slows it down.
We use a new isl scheduler option to bound the values in the constant dimension
by a user defined value (20 in our case). If the right value is choosen, costly
overoptimization is prevented.
This solution works, but requires a specific (here almost randomly choosen)
value by which the constants are bound. For the moment, this is our best
solution, but we hope to to find a more generic one later on.
After these patch the extremly long compile time for simple kernels like 2mm or
3mm is reduced to a reasonable amount of time (Not more than a couple of seconds
even in debug mode).
llvm-svn: 146556
2011-12-14 08:58:39 +00:00
cae6b39cff
Update isl
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This updates bringes new options for the isl scheduler.
llvm-svn: 146555
2011-12-14 08:58:36 +00:00
0d90112195
www: Add forgotten files
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llvm-svn: 146487
2011-12-13 15:09:09 +00:00
54da06ca28
www: Add LLVM Developer Meeting Video (webm only)
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llvm-svn: 146486
2011-12-13 15:07:00 +00:00
40c163a051
www: Improve styling of news section
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llvm-svn: 146485
2011-12-13 14:53:25 +00:00
fa05128785
www: Rephrase the introduction to Polly
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llvm-svn: 146484
2011-12-13 14:53:20 +00:00
9bf3b30c98
Upgrade to CLooG 0.17.0
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llvm-svn: 146373
2011-12-12 14:52:31 +00:00
66af99eb34
Update after LLVM API change.
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llvm-svn: 146279
2011-12-09 21:34:43 +00:00
46eceba361
Memacess: Some style changes
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llvm-svn: 146255
2011-12-09 14:27:17 +00:00
b6033396fd
ScheduleOptimizer: Do not tile bands with just one dimension
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llvm-svn: 146149
2011-12-08 13:02:58 +00:00
595ec0d0e3
ClooG: Make sure ambigous schedules do not introduce complicated code
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Cloog continued to split the domains even after the scattering. This lead to
complicated code.
llvm-svn: 146033
2011-12-07 11:03:48 +00:00
2493e92530
ScheduleOptimizer: Rewrite getPrevectorMap to use isl_pw_aff
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This increases the readablity. This also adds some comments that explain
what this function does.
llvm-svn: 146028
2011-12-07 07:42:57 +00:00
4a8e356f36
Make isl abort when an error is encountered
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llvm-svn: 146027
2011-12-07 07:42:51 +00:00
3f8073aaef
Update isl.
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llvm-svn: 145933
2011-12-06 10:48:32 +00:00
545bc31324
CodeGen: Style improvements.
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llvm-svn: 145932
2011-12-06 10:48:27 +00:00
cdea7df0fe
Cloog: Include header file for pipe/open/close
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We forgot to include the unistd.h header file that defines the
functions mentioned above. This was not a problem with gnu C++ library,
however it did not work for libc++.
llvm-svn: 145790
2011-12-04 10:44:14 +00:00
39913e3648
test: Switch to new atomic instructions
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This fixes the test with recent versions of LLVM that do not support
the old atomic instructions any more.
llvm-svn: 145402
2011-11-29 14:51:05 +00:00
a66b37d7ae
Add utils/jscop2cloog.py
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This tool takes a jscop file and translates it into a cloog input file.
llvm-svn: 145401
2011-11-29 14:50:52 +00:00
1e06003227
test: Add more dependences to cmake build
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llvm-svn: 145400
2011-11-29 14:50:47 +00:00
f281702686
test: Do not hardcode '.so' as library suffix
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Contributed by: Marcello Maggioni <hayarms@gmail.com>
llvm-svn: 145076
2011-11-22 19:40:38 +00:00
fe8572bc11
www: Document how to run 'make polly-test' for autoconf build
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llvm-svn: 145075
2011-11-22 19:40:34 +00:00
9fe98cc3eb
autoconf: Change order of linking files
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This fixes (or hides) the problem of symbols not being available in the
autoconf build.
llvm-svn: 145074
2011-11-22 19:40:31 +00:00
34525d37b1
OpenScop: Remove use of getNameStr()
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llvm-svn: 145073
2011-11-22 19:40:28 +00:00
23156484f3
cmake: Create libPollyExchange as in the autoconf build
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llvm-svn: 145072
2011-11-22 19:40:24 +00:00
4dca439cfc
Register Passes: Use -polly-optimizer=(isl|pocc) to switch optimizers
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This replaces the old option -polly-use-pocc. Also call the passes uniformly
-polly-opt-pocc and -polly-opt-isl.
llvm-svn: 145071
2011-11-22 19:40:19 +00:00
52277852a4
RegisterPass: Disable Polly by default
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We disable Polly by default and add a new option '-polly' that enables Polly.
This allows us to create an the alias
$ alias clang clang -Xclang -load -Xclang LLVMPolly.so
which loads Polly always into clang. It can now be enabled by running:
$ clang -O3 -mllvm -polly file.c
To enable it by default an alias pollycc can be create
$ alias pollycc clang -O3 -mllvm -polly
llvm-svn: 144917
2011-11-17 19:10:48 +00:00
29ee0b14d5
Do not use getNameStr() anymore.
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Instead we switch to the recommended getName(). This fixes compilation with
recent versions of LLVM.
llvm-svn: 144909
2011-11-17 14:52:36 +00:00
135c9c6534
autoconf: Specify that pollyanalysis depends on pollysupport
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llvm-svn: 144908
2011-11-17 12:56:23 +00:00
edb8a2807a
SCEVValidator: Fix coding standards in ValidatorResult
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llvm-svn: 144907
2011-11-17 12:56:21 +00:00
fa043f00cd
SCEVValidator: Make ValidatorResult a class and enforce the use of wproper accessors
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llvm-svn: 144906
2011-11-17 12:56:19 +00:00
b1f07c5c0b
SCEVValidator: Document SCEVType and ValidatorResult
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Suggested by Sebastian Pop.
llvm-svn: 144905
2011-11-17 12:56:17 +00:00
bcc0a0d560
SCEVValidator: Restructure the logic of visitAddRecExpr
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Suggested by Sebastian Pop.
llvm-svn: 144904
2011-11-17 12:56:14 +00:00
2a7cd94215
SCEVValidator: Fix typo
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llvm-svn: 144903
2011-11-17 12:56:12 +00:00
7ffe4e8b0b
Fix placement of the '*' that marks a pointer
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Suggested by Sebastian Pop.
llvm-svn: 144902
2011-11-17 12:56:10 +00:00
92a00f818a
RegisterPasses: Avoid double negation
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Fix suggested by Sebastian Pop.
llvm-svn: 144901
2011-11-17 12:56:06 +00:00
6287201d6e
ScheduleOptimizer: Start with an empty union_map and add elements
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llvm-svn: 144900
2011-11-17 12:56:04 +00:00
1ae9a60426
ScheduleOptimizer: Some style changes
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- Use uppercase letters according to the LLVM coding style
- Rename functions to not include 'tiledSchedule', but just Schedule. This
is more correct as tiling might be disabled.
llvm-svn: 144899
2011-11-17 12:56:03 +00:00
79b30201d6
ScheduleOptimizer: Use early exit
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Style fix, noted by Sebastian Pop.
llvm-svn: 144898
2011-11-17 12:56:00 +00:00
eb21b70d93
ScopLib: Fix export/import after parameters are now tagged with isl_ids.
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llvm-svn: 144643
2011-11-15 11:39:02 +00:00
626227462d
JSONImporter: Fix parameter ids when importing new access functions
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The new isl_id support for parmeters created problems when importing new
access functions. Even though the parameters had the same names,
they were mapped to different ids and where therefore incompatible.
We copy the ids now from the old parameter dimensions. This fixes the
problem.
llvm-svn: 144642
2011-11-15 11:38:59 +00:00
8f99c167cd
ScopInfo: Use names of simple parameters to name the isl parameter dimensions.
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Parameters can be complex SCEV expressions, but they can also be single scalar
values. If a parameters is such a simple scalar value and the value is named,
use this name to name the isl parameter dimensions.
llvm-svn: 144641
2011-11-15 11:38:55 +00:00
1fb76bd6f7
Cloog: Copy parameter names from isl data structures
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llvm-svn: 144640
2011-11-15 11:38:47 +00:00
ff9b54d5a9
JScop: Allow to update the context
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llvm-svn: 144639
2011-11-15 11:38:44 +00:00
ecf6cd06f0
Make JScop export/reimport accessible from clang
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llvm-svn: 144638
2011-11-15 11:38:36 +00:00
57398edf18
www: Remove link to LLVM for upper left corner. This confused a lot of people
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llvm-svn: 144289
2011-11-10 14:01:53 +00:00
7bf34585cb
www: Add some news about Polly
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llvm-svn: 144288
2011-11-10 14:00:04 +00:00
5d73f4a39f
www: Highlight command line flags
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llvm-svn: 144287
2011-11-10 14:00:00 +00:00
fff5adca2e
ScopDetection: Do not verify Aliasing
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This does not work reliable and is probably not needed. I accidentally changed
this in this recent commit:
commit a0bcd63c6ffa81616cf8c6663a87588803f7d91c
Author: grosser <grosser@91177308-0d34-0410-b5e6-96231b3b80d8>
Date: Thu Nov 10 12:47:21 2011 +0000
ScopDetect: Use INVALID macro to fail in case of aliasing
This simplifies the code and also makes the error message available to the
graphviz scop viewer.
git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@144284
llvm-svn: 144286
2011-11-10 13:21:43 +00:00
60cd932536
ScopDetection: Add flag to ignore possible aliasing
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llvm-svn: 144285
2011-11-10 12:47:26 +00:00
6f24d9d9ee
ScopDetect: Use INVALID macro to fail in case of aliasing
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This simplifies the code and also makes the error message available to
the graphviz scop viewer.
llvm-svn: 144284
2011-11-10 12:47:21 +00:00
4eb7381607
ScopDetect: Clean the last failure message properly
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llvm-svn: 144283
2011-11-10 12:45:15 +00:00
a66fa6cf02
ScopDetection: Improve formatting of error message and simplify some code
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llvm-svn: 144282
2011-11-10 12:45:11 +00:00
bef690f57f
Add a workaround to fix SCoPs rejected because of 'region not simple'
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llvm-svn: 144281
2011-11-10 12:45:07 +00:00
e5e171eadd
Reuse the old BaseAddress checking in SCEVValidator to make sure that no base
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address is part of the access function. Also remove unused special cases that
were necessery when the base address was still contained in the access function
llvm-svn: 144280
2011-11-10 12:45:03 +00:00
9759f85060
Use getBasePtr in TempScop/ScopInfo
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llvm-svn: 144279
2011-11-10 12:44:55 +00:00
b8710b5952
ScopDetect: Use getPointerBase to get the base pointer
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Previously we allowed in access functions only a single SCEVUnknown, which later
became the base address. We now use getPointerBase() to derive the base address
and all remaining unknowns are handled as parameters. This allows us to handle
cases like A[b+c];
llvm-svn: 144278
2011-11-10 12:44:50 +00:00
19632d7814
Remove unused function declaration
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llvm-svn: 144233
2011-11-09 22:35:19 +00:00
f50fc50c80
Remove unused parameters from TempScop
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llvm-svn: 144232
2011-11-09 22:35:15 +00:00
e4e2f7b16e
TempScop: Rename SCEVAffFunc to IRAccess
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The SCEVAffFunc is now only used to express memory accesses. Give it a proper
name and rework the class such that this is obvious.
llvm-svn: 144231
2011-11-09 22:35:09 +00:00
Hongbin Zheng