Commit Graph

87 Commits

Author SHA1 Message Date
Florian Hahn 83443c9a9e [ScheduleDAG] Add statistics for maintaining the topological order.
This is helpful to measure the impact of D60125 on maintaining
topological orders.

Reviewers: MatzeB, atrick, efriedma, niravd

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D60187

llvm-svn: 358058
2019-04-10 09:03:03 +00:00
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
Matthias Braun 726e12cf0c ScheduleDAG: Cleanup dumping code; NFC
- Instead of having both `SUnit::dump(ScheduleDAG*)` and
  `ScheduleDAG::dumpNode(ScheduleDAG*)`, just keep the latter around.
- Add `ScheduleDAG::dump()` and avoid code duplication in several
  places. Implement it for different ScheduleDAG variants.
- Add `ScheduleDAG::dumpNodeName()` in favor of the `SUnit::print()`
  functions. They were only ever used for debug dumping and putting the
  function into ScheduleDAG is consistent with the `dumpNode()` change.

llvm-svn: 342520
2018-09-19 00:23:35 +00:00
Nico Weber 432a38838d IWYU for llvm-config.h in llvm, additions.
See r331124 for how I made a list of files missing the include.
I then ran this Python script:

    for f in open('filelist.txt'):
        f = f.strip()
        fl = open(f).readlines()

        found = False
        for i in xrange(len(fl)):
            p = '#include "llvm/'
            if not fl[i].startswith(p):
                continue
            if fl[i][len(p):] > 'Config':
                fl.insert(i, '#include "llvm/Config/llvm-config.h"\n')
                found = True
                break
        if not found:
            print 'not found', f
        else:
            open(f, 'w').write(''.join(fl))

and then looked through everything with `svn diff | diffstat -l | xargs -n 1000 gvim -p`
and tried to fix include ordering and whatnot.

No intended behavior change.

llvm-svn: 331184
2018-04-30 14:59:11 +00:00
Francis Visoiu Mistrih 9d419d3b0c [CodeGen] Rename functions PrintReg* to printReg*
LLVM Coding Standards:
  Function names should be verb phrases (as they represent actions), and
  command-like function should be imperative. The name should be camel
  case, and start with a lower case letter (e.g. openFile() or isFoo()).

Differential Revision: https://reviews.llvm.org/D40416

llvm-svn: 319168
2017-11-28 12:42:37 +00:00
David Blaikie b3bde2ea50 Fix a bunch more layering of CodeGen headers that are in Target
All these headers already depend on CodeGen headers so moving them into
CodeGen fixes the layering (since CodeGen depends on Target, not the
other way around).

llvm-svn: 318490
2017-11-17 01:07:10 +00:00
David Blaikie 3f833edc7c Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layering
This header includes CodeGen headers, and is not, itself, included by
any Target headers, so move it into CodeGen to match the layering of its
implementation.

llvm-svn: 317647
2017-11-08 01:01:31 +00:00
Aaron Ballman 615eb47035 Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people.
Error LNK2019 unresolved external symbol "public: void __cdecl `anonymous namespace'::MatchableInfo::dump(void)const " (?dump@MatchableInfo@?A0xf4f1c304@@QEBAXXZ) referenced in function "public: void __cdecl `anonymous namespace'::AsmMatcherEmitter::run(class llvm::raw_ostream &)" (?run@AsmMatcherEmitter@?A0xf4f1c304@@QEAAXAEAVraw_ostream@llvm@@@Z) llvm-tblgen D:\llvm\2017\utils\TableGen\AsmMatcherEmitter.obj 1

llvm-svn: 315854
2017-10-15 14:32:27 +00:00
Don Hinton 3e0199f7eb [dump] Remove NDEBUG from test to enable dump methods [NFC]
Summary:
Add LLVM_FORCE_ENABLE_DUMP cmake option, and use it along with
LLVM_ENABLE_ASSERTIONS to set LLVM_ENABLE_DUMP.

Remove NDEBUG and only use LLVM_ENABLE_DUMP to enable dump methods.

Move definition of LLVM_ENABLE_DUMP from config.h to llvm-config.h so
it'll be picked up by public headers.

Differential Revision: https://reviews.llvm.org/D38406

llvm-svn: 315590
2017-10-12 16:16:06 +00:00
Evandro Menezes 14ba3d7730 [CodeGen] Add dependency printer
Add SDep printer to make debugging sessions more productive.

Differential revision: https://reviews.llvm.org/D35144

llvm-svn: 307799
2017-07-12 15:30:59 +00:00
Chandler Carruth 6bda14b313 Sort the remaining #include lines in include/... and lib/....
I did this a long time ago with a janky python script, but now
clang-format has built-in support for this. I fed clang-format every
line with a #include and let it re-sort things according to the precise
LLVM rules for include ordering baked into clang-format these days.

I've reverted a number of files where the results of sorting includes
isn't healthy. Either places where we have legacy code relying on
particular include ordering (where possible, I'll fix these separately)
or where we have particular formatting around #include lines that
I didn't want to disturb in this patch.

This patch is *entirely* mechanical. If you get merge conflicts or
anything, just ignore the changes in this patch and run clang-format
over your #include lines in the files.

Sorry for any noise here, but it is important to keep these things
stable. I was seeing an increasing number of patches with irrelevant
re-ordering of #include lines because clang-format was used. This patch
at least isolates that churn, makes it easy to skip when resolving
conflicts, and gets us to a clean baseline (again).

llvm-svn: 304787
2017-06-06 11:49:48 +00:00
Valery Pykhtin 910da13a07 MachineScheduler/ScheduleDAG: Add support for GetSubGraph
Patch by Axel Davy (axel.davy@normalesup.org)

Differential revision: https://reviews.llvm.org/D30626

llvm-svn: 298896
2017-03-28 05:12:31 +00:00
Eugene Zelenko db56e5a89a [CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).
llvm-svn: 295893
2017-02-22 22:32:51 +00:00
Matthias Braun 9ab403942b ScheduleDAG: Cleanup; NFC
- Fix doxygen comments (do not repeat documented name, remove definition
    comment if there is already one at the declaration, add \p, ...)
- Add some const modifiers
- Use range based for

llvm-svn: 295688
2017-02-21 01:27:33 +00:00
Matthias Braun 8c209aa877 Cleanup dump() functions.
We had various variants of defining dump() functions in LLVM. Normalize
them (this should just consistently implement the things discussed in
http://lists.llvm.org/pipermail/cfe-dev/2014-January/034323.html

For reference:
- Public headers should just declare the dump() method but not use
  LLVM_DUMP_METHOD or #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
- The definition of a dump method should look like this:
  #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  LLVM_DUMP_METHOD void MyClass::dump() {
    // print stuff to dbgs()...
  }
  #endif

llvm-svn: 293359
2017-01-28 02:02:38 +00:00
Evandro Menezes 063259d4d1 [CodeGen] Implement the SUnit::print() method
This method seems to have had a troubled life.  This patch proposes that it
replaces the recently added helper function dumpSUIdentifier.  This way, the
method can be used in other files using the SUnit class.

Differential revision: https://reviews.llvm.org/D28488

llvm-svn: 291520
2017-01-10 01:08:01 +00:00
Matthias Braun c94ca916f5 Revert "(origin/master, origin/HEAD) MachineScheduler/ScheduleDAG: Add support to skipping a node."
Revert accidentally committed change.

This reverts commit r286655.

llvm-svn: 286656
2016-11-11 22:39:50 +00:00
Matthias Braun 66ee0bfced MachineScheduler/ScheduleDAG: Add support to skipping a node.
The DAG mutators in the scheduler cannot really remove DAG nodes as
additional anlysis information such as ScheduleDAGToplogicalSort are
already computed at this point and rely on a fixed number of DAG nodes.

Alleviate the missing removal with a new flag: Setting the new skip
flag on a node ignores it during scheduling.

llvm-svn: 286655
2016-11-11 22:37:34 +00:00
Matthias Braun 636a5972a9 ScheduleDAG: Identify EntrySU/ExitSU when dumping node ids
llvm-svn: 286652
2016-11-11 22:37:26 +00:00
Matthias Braun 1acb55e67c ScheduleDAG: Match enum names when printing sdep kinds
It is less confusing to have the same names in the debug print as the
enum members.

llvm-svn: 282273
2016-09-23 18:28:31 +00:00
David Majnemer 42531260b3 Use the range variant of find/find_if instead of unpacking begin/end
If the result of the find is only used to compare against end(), just
use is_contained instead.

No functionality change is intended.

llvm-svn: 278469
2016-08-12 03:55:06 +00:00
Matthias Braun 9198c671e8 MachineScheduler: Add regpressure information to debug dump
llvm-svn: 252340
2015-11-06 20:59:02 +00:00
Eric Christopher 337262068f Replace some uses of getSubtargetImpl with the cached version
off of the MachineFunction or with the version that takes a
Function reference as an argument.

llvm-svn: 227185
2015-01-27 08:48:42 +00:00
Eric Christopher d913448b38 Remove the TargetMachine forwards for TargetSubtargetInfo based
information and update all callers. No functional change.

llvm-svn: 214781
2014-08-04 21:25:23 +00:00
Chandler Carruth 1b9dde087e [Modules] Remove potential ODR violations by sinking the DEBUG_TYPE
define below all header includes in the lib/CodeGen/... tree. While the
current modules implementation doesn't check for this kind of ODR
violation yet, it is likely to grow support for it in the future. It
also removes one layer of macro pollution across all the included
headers.

Other sub-trees will follow.

llvm-svn: 206837
2014-04-22 02:02:50 +00:00
Craig Topper c0196b1b40 [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.
llvm-svn: 206142
2014-04-14 00:51:57 +00:00
Benjamin Kramer b6d0bd48bd [C++11] Replace llvm::next and llvm::prior with std::next and std::prev.
Remove the old functions.

llvm-svn: 202636
2014-03-02 12:27:27 +00:00
Alp Toker cb40291100 Fix known typos
Sweep the codebase for common typos. Includes some changes to visible function
names that were misspelt.

llvm-svn: 200018
2014-01-24 17:20:08 +00:00
Craig Topper e1c1d363a5 Use SmallVectorImpl instead of SmallVector for iterators and references to avoid specifying the vector size unnecessarily.
llvm-svn: 185512
2013-07-03 05:11:49 +00:00
Andrew Trick f9669beacd Scheduler diagnostics. Print the register name.
llvm-svn: 176316
2013-03-01 00:19:14 +00:00
Andrew Trick 2a8edef70b Instructions schedulers should report correct height/depth.
We avoided computing DAG height/depth during Node printing because it
shouldn't depend on an otherwise valid DAG. But this has become far
too annoying for the common case of a valid DAG where we want to see
valid values. If doing the computation on-the-fly turns out to be a
problem in practice, then I'll add a mode to the diagnostics to only
force it when we're likely to have a valid DAG, otherwise explicitly
print INVALID instead of bogus numbers. For now, just go for it all
the time.

llvm-svn: 176314
2013-03-01 00:19:09 +00:00
Benjamin Kramer 981de9a9da Replace loop with std::find.
No functionality change.

llvm-svn: 175366
2013-02-16 17:06:32 +00:00
Andrew Trick d3b8629a53 MIsched: Added biasCriticalPath.
Allow schedulers to order DAG edges by critical path. This makes
DFS-based heuristics more stable and effective.

llvm-svn: 173317
2013-01-24 02:09:55 +00:00
Chandler Carruth ed0881b2a6 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
Andrew Trick 4b1f9e3bac misched: Don't consider artificial edges weak edges.
For now be more conservative in case other out-of-tree schedulers rely
on the old behavior of artificial edges.

llvm-svn: 167808
2012-11-13 02:35:06 +00:00
Andrew Trick f1ff84c64e misched: Infrastructure for weak DAG edges.
This adds support for weak DAG edges to the general scheduling
infrastructure in preparation for MachineScheduler support for
heuristics based on weak edges.

llvm-svn: 167738
2012-11-12 19:28:57 +00:00
Manman Ren 19f49ac624 Release build: guard dump functions with
"#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)"

No functional change. Update r163339.

llvm-svn: 163653
2012-09-11 22:23:19 +00:00
Manman Ren 742534c4dc Release build: guard dump functions with "ifndef NDEBUG"
No functional change.

llvm-svn: 163339
2012-09-06 19:06:06 +00:00
Andrew Trick 5b90645abb sched: Avoid trivially redundant DAG edges. Take the one with higher latency.
llvm-svn: 158379
2012-06-13 02:39:00 +00:00
Andrew Trick 60cf03e772 misched preparation: clarify ScheduleDAG and ScheduleDAGInstrs roles.
ScheduleDAG is responsible for the DAG: SUnits and SDeps. It provides target hooks for latency computation.

ScheduleDAGInstrs extends ScheduleDAG and defines the current scheduling region in terms of MachineInstr iterators. It has access to the target's scheduling itinerary data. ScheduleDAGInstrs provides the logic for building the ScheduleDAG for the sequence of MachineInstrs in the current region. Target's can implement highly custom schedulers by extending this class.

ScheduleDAGPostRATDList provides the driver and diagnostics for current postRA scheduling. It maintains a current Sequence of scheduled machine instructions and logic for splicing them into the block. During scheduling, it uses the ScheduleHazardRecognizer provided by the target.

Specific changes:
- Removed driver code from ScheduleDAG. clearDAG is the only interface needed.

- Added enterRegion/exitRegion hooks to ScheduleDAGInstrs to delimit the scope of each scheduling region and associated DAG. They should be used to setup and cleanup any region-specific state in addition to the DAG itself. This is necessary because we reuse the same ScheduleDAG object for the entire function. The target may extend these hooks to do things at regions boundaries, like bundle terminators. The hooks are called even if we decide not to schedule the region. So all instructions in a block are "covered" by these calls.

- Added ScheduleDAGInstrs::begin()/end() public API.

- Moved Sequence into the driver layer, which is specific to the scheduling algorithm.

llvm-svn: 152208
2012-03-07 05:21:52 +00:00
Andrew Trick edee68ce1b misched preparation: modularize schedule printing.
ScheduleDAG will not refer to the scheduled instruction sequence.

llvm-svn: 152205
2012-03-07 05:21:40 +00:00
Andrew Trick 46a58664f7 misched preparation: modularize schedule verification.
ScheduleDAG will not refer to the scheduled instruction sequence.

llvm-svn: 152204
2012-03-07 05:21:36 +00:00
Jakob Stoklund Olesen a2755ea8f2 Don't print out pointer values in SUnit::dump().
llvm-svn: 150842
2012-02-17 21:44:51 +00:00
Andrew Trick 59ac4fb706 misched: Initial code for building an MI level scheduling DAG
llvm-svn: 148174
2012-01-14 02:17:18 +00:00
David Blaikie a379b18173 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch
llvm-svn: 146960
2011-12-20 02:50:00 +00:00
Benjamin Kramer 4938edb02c Make a bunch of symbols private.
llvm-svn: 138025
2011-08-19 01:42:18 +00:00
Duncan Sands a41634e307 Silence a bunch (but not all) "variable written but not read" warnings
when building with assertions disabled.

llvm-svn: 137460
2011-08-12 14:54:45 +00:00
Evan Cheng 6cc775f905 - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and
sink them into MC layer.
- Added MCInstrInfo, which captures the tablegen generated static data. Chang
TargetInstrInfo so it's based off MCInstrInfo.

llvm-svn: 134021
2011-06-28 19:10:37 +00:00
Andrew Trick 3013b6ae4a Added -stress-sched flag in the Asserts build.
Added a test case for handling physreg aliases during pre-RA-sched.

llvm-svn: 133063
2011-06-15 17:16:12 +00:00
Chris Lattner 0ab5e2cded Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129558
2011-04-15 05:18:47 +00:00