Commit Graph

15 Commits

Author SHA1 Message Date
Patrick Holland fe01014faa [MCA] Moved View.h and View.cpp from /tools/llvm-mca/ to /lib/MCA/.
Moved View.h and View.cpp from /tools/llvm-mca/Views/ to /lib/MCA/ and
/include/llvm/MCA/. This is so that targets can define their own Views within
the /lib/Target/ directory (so that the View can use backend functionality).
To enable these Views within mca, targets will need to add them to the vector of
Views returned by their target's CustomBehaviour::getViews() methods.

Differential Revision: https://reviews.llvm.org/D108520
2021-08-25 12:12:47 -07:00
Marcos Horro 77f2f0f9b7 [llvm-mca][JSON] Store extra information about driver flags used for the simulation
Added information stored in PipelineOptions and the MCSubtargetInfo.

Bug: https://bugs.llvm.org/show_bug.cgi?id=51041

Reviewed By: andreadb

Differential Revision: https://reviews.llvm.org/D106077
2021-07-16 09:18:40 +02:00
Marcos Horro 14f77576c9 [llvm-mca] [NFC] Formatting code
Applied clang-format to all files. Discarded BottleneckAnalysis.h
80-column width violation since it contains an example of report.
Caught some typos and minor style details.

Reviewed By: andreadb

Differential Revision: https://reviews.llvm.org/D105900
2021-07-13 19:13:59 +02:00
Andrea Di Biagio 4fe0fcd1c0 [llvm-mca][JSON] Teach the PipelinePrinter how to deal with anonymous code regions (PR51008)
This patch addresses the last remaining problems reported in PR51008.

Previous fixes for PR51008 worked under the wrong assumption that code regions
are always named (except maybe for the default region, which was automatically
named "main").

In reality, it is quite common for users to declare multiple anonymous regions.
So we cannot really use the region name as the key string of a JSON object.  In
practice, code region names are completely optional.

Using "main" for the default region was also problematic because there can be
another region with that same name.

This patch fixes these issues by introducing a json::array of regions.  Each
region has a "Name" field, which would default to the empty string for anonymous
regions.

Added a few more tests to verify that the JSON file format is still valid, and
that multiple anonymous regions all appear in the final output.
2021-07-10 13:57:52 +01:00
Andrea Di Biagio d919bca875 [llvm-mca][JSON] Further refactoring of the JSON printing logic.
This patch renames object "Resources" to "TargetInfo".

Moved the getJSONTargetInfo method from class InstructionView to the
PipelinePrinter.

Removed uses of std::stringstream.
Removed unused method View::printViewJSON().
2021-07-10 12:38:19 +01:00
Andrea Di Biagio 10cb036223 [llvm-mca] Refactor the logic that prints JSON files.
Moved most of the printing logic into the PipelinePrinter.

This patch also fixes the JSON output when flag -instruction-tables is
specified.
2021-07-09 22:56:39 +01:00
Marcos Horro b11d31eb73 [llvm-mca] Fix JSON format for multiple regions
Instead of printing each region individually when using JSON format,
this patch creates a JSON object which is updated with the values of
each region, printing them at the end. New test is added for JSON output
with multiple regions.

Bug: https://bugs.llvm.org/show_bug.cgi?id=51008

Reviewed By: andreadb

Differential Revision: https://reviews.llvm.org/D105618
2021-07-09 18:04:16 +02:00
Marcos Horro aa13e4fe7e [llvm-mca] Fix JSON output (PR50922)
Based on the discussion in PR50922, minor changes have been done to properly
output a valid JSON.  Removed "not implemented" keys.

Differential Revision: https://reviews.llvm.org/D105064
2021-07-01 12:53:20 +01:00
Wolfgang Pieb d38be2ba0e [llvm-mca] Initial implementation of serialization using JSON. The views
implemented at this time are Summary, Timeline, ResourcePressure and InstructionInfo.
Use --json on the command line to obtain JSON output.
2021-01-21 15:15:54 -08:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Fangrui Song 5a8fd65700 [llvm-mca] Move namespace mca inside llvm::
Summary: This allows to remove `using namespace llvm;` in those *.cpp files

When we want to revisit the decision (everything resides in llvm::mca::*) in the future, we can move things to a nested namespace of llvm::mca::, to conceptually make them separate from the rest of llvm::mca::*

Reviewers: andreadb, mattd

Reviewed By: andreadb

Subscribers: javed.absar, tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D53407

llvm-svn: 345612
2018-10-30 15:56:08 +00:00
Andrea Di Biagio db158be646 [llvm-mca] Remove a couple of using directives and a bunch of redundant namespace llvm prefixes. NFC
llvm-svn: 344916
2018-10-22 16:28:07 +00:00
Matt Davis 10aa09f008 [llvm-mca] Move views and stats into a Views subdir. NFC.
llvm-svn: 340645
2018-08-24 20:24:53 +00:00
Matt Davis 0e8402eccd [llvm-mca] Turn InstructionTables into a Stage.
Summary:
This patch converts the InstructionTables class into a subclass of mca::Stage.  This change allows us to use the Stage's inherited Listeners for event notifications.  This also allows us to create a simple pipeline for viewing the InstructionTables report.

I have been working on a follow on patch that should cleanup addView in InstructionTables.  Right now, addView adds the view to both the Listener list and Views list.  The follow-on patch addresses the fact that we don't really need two lists in this case.  That change is not specific to just InstructionTables, so it will be a separate patch. 

Reviewers: andreadb, courbet, RKSimon

Reviewed By: andreadb

Subscribers: tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D49329

llvm-svn: 337113
2018-07-14 23:52:50 +00:00
Matt Davis dea343d2b3 [llvm-mca] Rename Backend to Pipeline. NFC.
Summary:
This change renames the Backend and BackendPrinter to Pipeline and PipelinePrinter respectively. 
Variables and comments have also been updated to reflect this change.

The reason for this rename, is to be slightly more correct about what MCA is modeling.  MCA models a Pipeline, which implies some logical sequence of stages. 

Reviewers: andreadb, courbet, RKSimon

Reviewed By: andreadb, courbet

Subscribers: mgorny, javed.absar, tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D48496

llvm-svn: 335496
2018-06-25 16:53:00 +00:00