Commit Graph

523 Commits

Author SHA1 Message Date
Tobias Grosser 6a2da6b9c8 Add test cases for multi-dimensional variable lengths arrays
At the moment we can handle such arrays only by conservatively assuming that
each access to such an array may touch any element in the array. It would be
great if we could improve Polly/LLVM at some point, such that we can
recover the multi-dimensionality of the accesses.

llvm-svn: 163619
2012-09-11 14:03:19 +00:00
Tobias Grosser ed29566c4e ScopInfo: Align parameters when using -polly-allow-nonaffine
This ensures that the isl sets/maps we operate on have the same parameter
dimensions. Operations on objects with different parameter dimensions are not
allow and trigger assertions.

llvm-svn: 163618
2012-09-11 13:50:21 +00:00
Tobias Grosser eeb776a41f SCEVValidator: Add debug output that gives the reason for invalid expressions
llvm-svn: 163472
2012-09-08 14:00:37 +00:00
Tobias Grosser 6eaafb7288 Remove dead code
This code has been replaced by the SCEVValidator a while ago.

llvm-svn: 163471
2012-09-08 14:00:32 +00:00
Tobias Grosser 0b5a1959f4 ScopGraphPrinter: Escape error message
Otherwise a '"' in the error message, yields an invalid .dot file.

llvm-svn: 163466
2012-09-08 08:31:55 +00:00
Tobias Grosser ad41c4ce20 Add dependency to intrinsics_gen
The IndVarSimplify pass in Polly uses the intrinsics header. We need to ensure
that the header is generated, before we use it. This patch fixes the problem
for the cmake build (it did not show up in the autoconf one).

Contributed by:   Sameer Sahasrabuddhe  <sameer.sahasrabuddhe@amd.com>

llvm-svn: 163130
2012-09-04 08:19:12 +00:00
Tobias Grosser 657dad67d6 Update isl to a newer version
This fixes some undefined behavior in isl.

Reported by:  Sameer Sahasrabuddhe  <sameer.sahasrabuddhe@amd.com>

llvm-svn: 163108
2012-09-03 07:42:40 +00:00
Tobias Grosser cd95b77330 Pocc: Fix some bugs in the PoCC optimizer pass
This includes:
  - The isl_id of the domain of the scattering must be copied from the original
    domain
  - Remove outdated references to a 'FinalRead' statement
  - Print of the Pocc output, if -debug is provided.
  - Add line breaks to some error messages.

Reported and Debugged by:  Dustin Feld  <d3.feld@gmail.com>

llvm-svn: 162901
2012-08-30 11:49:38 +00:00
Tobias Grosser 4a7527e0eb Pluto: Print pluto input in debugging mode
llvm-svn: 162900
2012-08-30 11:49:31 +00:00
Tobias Grosser 882a283946 Dependences: Print dependences in -analyze output
The dependency printing was accidentally removed in during a previous
restructuring.

llvm-svn: 162662
2012-08-27 08:44:15 +00:00
Tobias Grosser 6f9465591e PoCC: Simplify condition
llvm-svn: 162555
2012-08-24 13:56:56 +00:00
Tobias Grosser 4a67e01216 Sort includes
llvm-svn: 162554
2012-08-24 13:54:40 +00:00
Tobias Grosser c8fc2d7045 PoCC: Adapt to earlier vectorizer changes
llvm-svn: 162553
2012-08-24 13:54:36 +00:00
Tobias Grosser 1df5289782 autoconf: Only define GPGPU_CODEGEN, if that feature is requested
Before we defined GPGPU_CODEGEN to '0', which does not disable the relevant code
as we just check if that value is defined at all. We now follow the cmake
approach and only define GPGPU_CODEGEN, if the feature should be enabled.

Reported by: Sebastian Pop <spop@codeaurora.org>

llvm-svn: 162275
2012-08-21 12:29:10 +00:00
Tobias Grosser 7a19b31a23 Remove executable bits from html files
llvm-svn: 161930
2012-08-15 05:50:24 +00:00
Tobias Grosser 1049611070 www documentation for using Polly with dragonegg.
Added a file that explains how to load Polly in dragonegg.
Also fixed a typo in the document for clang.

Committed with a typo fix and a change to make this website available from
the documentation section.

Contributed by: Sameer Sahasrabuddhe  <Sameer.Sahasrabuddhe@amd.com>

llvm-svn: 161928
2012-08-15 05:02:25 +00:00
Tobias Grosser 6217e18a7d Add preliminary implementation for GPGPU code generation.
Translate the selected parallel loop body into a ptx string and run it with the
cuda driver API. We limit this preliminary implementation to target the
following special test cases:

  - Support only 2-dimensional parallel loops with or without only one innermost
    non-parallel loop.
  - Support write memory access to only one array in a SCoP.

The patch was committed with smaller changes to the build system:

There is now a flag to enable gpu code generation explictly. This was required
as we need the llvm.codegen() patch applied on the llvm sources, to compile this
feature correctly. Also, enabling gpu code generation does not require cuda.
This requirement was removed to allow 'make polly-test' runs, even without an
installed cuda runtime.

Contributed by:  Yabin Hu  <yabin.hwu@gmail.com>

llvm-svn: 161239
2012-08-03 12:50:07 +00:00
Tobias Grosser 08ffdba6bd Remove 'using namespace llvm' from header file
This fixes a conflict between polly::createIndVarSimplifyPass() and
llvm::createIndVarSimplifyPass(), which causes problems on windows.

Reported by:  Michael Kruse  <MichaelKruse@meinersbur.de

llvm-svn: 161235
2012-08-03 08:11:24 +00:00
Tobias Grosser 5a2925c6a1 cmake: Fix building of Polly on Apple system
The Apple linker fails by default, if some function calls can not be resolved at
link time. However, all functions that are part of LLVM itself will not be
linked into Polly, but will be provided by the compiler that Polly is loaded
into.  Hence, during linking we need to ignore failures due to unresolved
function calls.

llvm-svn: 161234
2012-08-03 07:12:07 +00:00
Tobias Grosser b19de925e9 Remove leftover definitions
Contributed by: Michael Kruse  <MichaelKruse@meinersbur.de>

llvm-svn: 161174
2012-08-02 13:34:58 +00:00
Tobias Grosser 9e97ae143f Update llvm.codegen() patch for CodeGen.cpp changes in r159694.
Contributed by:  Yabin Hu <yabin.hwu@gmail.com>

llvm-svn: 161160
2012-08-02 08:16:40 +00:00
Tobias Grosser 8ea010b6b1 Add missing dependency to cmake system
llvm-svn: 161158
2012-08-02 07:47:37 +00:00
Tobias Grosser c11349c55a Add support for libpluto as the scheduling optimizer.
llvm-svn: 161157
2012-08-02 07:47:26 +00:00
Hongbin Zheng 7aee737062 IndependentBLocks: Do not visit the same instruction twice when moving the
operand tree.

This patch fix Bug 13491, and the original "FIXME" in IndependentBlocks.cpp.

Patched by Kevin Fan<kevin.fan@gmail.com>.

llvm-svn: 161105
2012-08-01 08:46:11 +00:00
Tobias Grosser 19bde907b5 Create a new directory before running the polly script
Otherwise the script spams the home directory and, in case there are folders
of previous attempts lying around, it may fail in some unexpected way.

llvm-svn: 160677
2012-07-24 16:58:57 +00:00
Tobias Grosser 25184fe925 Allow cast instructions within scops
Cast instruction do not have side effects and can consequently be part of a
scop. We special cased them earlier, as they may be problematic within array
subscripts or loop bounds. However, the scalar evolution validator already
checks for them such that there is no need to also check the instructions within
the basic blocks.  Checking them is actually overly conservative as the precence
of casts may invalidate a scop, even though scalar evolution is not influenced
by it.

llvm-svn: 160261
2012-07-16 10:57:32 +00:00
Tobias Grosser 6cc23b07e6 Revert "Add preliminary implementation for GPGPU code generation."
I did not take into account, that this patch fails to compile without the
llvm.codegen patch applied. This breaks buildbots.

I revert this until we found a solution to commit this without buildbots
complaining.

This reverts commit cb43ab80e94434e780a66be3b9a6ad466822fe33.

llvm-svn: 160165
2012-07-13 07:44:56 +00:00
Tobias Grosser b299d28181 Add preliminary implementation for GPGPU code generation.
Translate the selected parallel loop body into a ptx string and run it
with cuda driver API. We limit this preliminary implementation to
target the following special test cases:
  - Support only 2-dimensional parallel loops with or without only one
    innermost non-parallel loop.
  - Support write memory access to only one array in a SCoP.

Contributed by:  Yabin Hu <yabin.hwu@gmail.com>

llvm-svn: 160164
2012-07-13 07:21:00 +00:00
Tobias Grosser 903c242662 Update libGPURuntime to be dual licensed under MIT and UIUC license.
Contributed by: Yabin Hu  <yabin.hwu@gmail.com>

llvm-svn: 159815
2012-07-06 10:40:15 +00:00
Hongbin Zheng cea35f60d5 Add an Instruction member to MemoryAccess Class.
Patched by TangKK <dengjunqi06323011@hotmail.com>.

llvm-svn: 159808
2012-07-06 06:47:03 +00:00
Hongbin Zheng 454e8f9ee8 Add stringFromIslObj support for various isl_objs.
Patched by JunQi<dengjunqi06323011@hotmail.com>.

llvm-svn: 159735
2012-07-05 08:55:31 +00:00
Hongbin Zheng 5205e0c40e Refactor: Use generic internal function template in GICHelper.cpp to avoid duplication.
llvm-svn: 159734
2012-07-05 08:42:39 +00:00
Tobias Grosser 5c0f6f3350 Replace CUDA data types with Polly's GPGPU data types.
Contributed by:  Yabin Hu  <yabin.hwu@gmail.com>

llvm-svn: 159725
2012-07-04 21:45:03 +00:00
Tobias Grosser 822b254507 codegen.intrinsic: Update testcase to work with NVPTX backend
llvm-svn: 159650
2012-07-03 08:18:34 +00:00
Tobias Grosser b266c98ccc Update to Polly for LLVM r159614 which changes Passes.cpp.
Contributed by: Yabin Hu <yabin.hwu@gmail.com>

llvm-svn: 159649
2012-07-03 08:18:31 +00:00
Tobias Grosser 1b593a114e Update to Polly for LLVM r159383 which changes SelectionDAGBuilder.cpp.
Contributed by: Yabin Hu <yabin.hwu@gmail.com>

llvm-svn: 159507
2012-07-01 13:47:50 +00:00
Chandler Carruth c55b598dc2 Speculative update to Polly for LLVM r159421 which moved IRBuilder.h.
llvm-svn: 159423
2012-06-29 12:39:49 +00:00
Tobias Grosser b5f971f744 Add TempScop::isWrite() function.
llvm-svn: 158987
2012-06-22 10:59:36 +00:00
Tobias Grosser 96682025c7 Add some tests for the independent blocks pass.
llvm-svn: 158306
2012-06-11 10:25:12 +00:00
Tobias Grosser fb4842ff95 Add the runtime library for GPGPU code generation.
Contributed by: Yabin Hu <yabin.hwu@gmail.com>

llvm-svn: 158304
2012-06-11 09:25:01 +00:00
Tobias Grosser 3cc99748b6 Fix some coding convention problems.
llvm-svn: 158081
2012-06-06 16:33:15 +00:00
Tobias Grosser 88aeaf6ac4 Detect the cuda library available.
We will use the cuda library for the upcoming automatic GPGPU code generation.

Contributed by: Yabin Hu  <yabin.hwu@gmail.com>

llvm-svn: 158064
2012-06-06 12:16:10 +00:00
Tobias Grosser baa1ac260b CLooG: Do not take into account the context
CLooG and the CLooG based code generation does not yet correctly derive the
types of the expressions, but just uses i64 for everything. This is incorrect,
but works normally pretty well. However, the recent change of adding parameter
bounds to the context made CLooG generate expressions that contain a lot of very
large integers that possibly don't fit into an i64. This broke the code
generation for several benchmarks.

To get the CLooG based code generation working again, we just don't take into
account any constraints in the context. This brings us back to the theoretical
incorrect, but in practice generally correct code.

The next step will be the isl based code generation. Here we will derive
automatically correct types.

llvm-svn: 158015
2012-06-05 19:31:08 +00:00
Tobias Grosser 1cf47f1160 www: Add GPGPU Code Generation Documentation.
llvm-svn: 157690
2012-05-30 13:54:02 +00:00
Tobias Grosser 8d7c4dbf8c Add llvm.codegen intrinsic patch file to polly/utils.
The "llvm.codegen" intrinsic patch is a patch to LLVM, which is used
to generate code for embedded LLVM-IR strings. In Polly, we use it
to generate ptx assembly text for GPGPU code generation.

llvm-svn: 157689
2012-05-30 13:53:57 +00:00
Tobias Grosser 084d8f7d4c ScopInfo: Store ScopStmt pointer in the domain
Store a pointer to each ScopStmt in the isl_id associated with the space of its
domain. This will later allow us to recover the statement during code
generation with isl.

llvm-svn: 157607
2012-05-29 09:29:44 +00:00
Tobias Grosser 400a4ac658 Mark the increments of the generated induction variables 'NSW'
In general, all code that we produce is NSW.

llvm-svn: 157606
2012-05-29 09:11:59 +00:00
Tobias Grosser 3a275d20dd Move executeScopConditionally() into its own file
We will reuse this function for the isl code generator.

llvm-svn: 157605
2012-05-29 09:11:54 +00:00
Tobias Grosser 0a91f3220b Move CLooG.h into include/polly/CodeGen/
llvm-svn: 157604
2012-05-29 09:11:46 +00:00
Tobias Grosser 29666113fd ScheduleOptimizer: Simplify some code
We now use isl_map_equate, which makes the code a lot simpler.

llvm-svn: 157246
2012-05-22 10:47:31 +00:00