Commit Graph

45 Commits

Author SHA1 Message Date
Krzysztof Parzyszek e4582d4a2e [Packetizer] Add debugging code to stop packetization after N instructions
llvm-svn: 279325
2016-08-19 21:12:52 +00:00
Krzysztof Parzyszek 31ceba7c44 Add debugging code to the packetizer
llvm-svn: 275455
2016-07-14 19:04:26 +00:00
Benjamin Kramer 3e9a5d3468 Apply clang-tidy's misc-static-assert where it makes sense.
Also fold conditions into assert(0) where it makes sense. No functional
change intended.

llvm-svn: 270982
2016-05-27 11:36:04 +00:00
Krzysztof Parzyszek 1a1d78b86f Add DAG mutation interface to the DFA packetizer
llvm-svn: 262930
2016-03-08 15:33:51 +00:00
Duncan P. N. Exon Smith 5702287809 CodeGen: Update DFAPacketizer API to take MachineInstr&, NFC
In all but one case, change the DFAPacketizer API to take MachineInstr&
instead of MachineInstr*.  In DFAPacketizer::endPacket(), take
MachineBasicBlock::iterator.  Besides cleaning up the API, this is in
search of PR26753.

llvm-svn: 262142
2016-02-27 19:09:00 +00:00
Duncan P. N. Exon Smith c5b668deb8 Revert "CodeGen: MachineInstr::getIterator() => getInstrIterator(), NFC"
This reverts commit r261504, since it's not obvious the new name is
better:
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20160222/334298.html

I'll recommit if we get consensus that it's the right direction.

llvm-svn: 261567
2016-02-22 20:49:58 +00:00
Duncan P. N. Exon Smith dc0848c029 CodeGen: MachineInstr::getIterator() => getInstrIterator(), NFC
Delete MachineInstr::getIterator(), since the term "iterator" is
overloaded when talking about MachineInstr.

- Downcast to ilist_node in iplist::getNextNode() and getPrevNode() so
  that ilist_node::getIterator() is still available.
- Add it back as MachineInstr::getInstrIterator().  This matches the
  naming in MachineBasicBlock.
- Add MachineInstr::getBundleIterator().  This is explicitly called
  "bundle" (not matching MachineBasicBlock) to disintinguish it clearly
  from ilist_node::getIterator().
- Update all calls.  Some of these I switched to `auto` to remove
  boiler-plate, since the new name is clear about the type.

There was one call I updated that looked fishy, but it wasn't clear what
the right answer was.  This was in X86FrameLowering::inlineStackProbe(),
added in r252578 in lib/Target/X86/X86FrameLowering.cpp.  I opted to
leave the behaviour unchanged, but I'll reply to the original commit on
the list in a moment.

llvm-svn: 261504
2016-02-21 22:58:35 +00:00
Krzysztof Parzyszek c005e20d3b [Packetizer] Code cleanup, NFC
llvm-svn: 257805
2016-01-14 21:17:04 +00:00
Krzysztof Parzyszek 2005d7dc01 [Packetizer] Add a check whether an instruction should be packetized now
Add a function VLIWPacketizerList::shouldAddToPacket, which will allow
specific implementations to decide if it is profitable to add given
instruction to the current packet.

llvm-svn: 255780
2015-12-16 16:38:16 +00:00
Krzysztof Parzyszek dac7102874 [Packetizer] Add AliasAnalysis as a parameter to the packetizer
This will make the depedence graph more accurate if an alias analysis
is provided. If nullptr is specified in its place, the behavior will
remain as it is currently.

llvm-svn: 255540
2015-12-14 20:35:13 +00:00
Krzysztof Parzyszek 6753f33388 Avoid dependency between TableGen and CodeGen
Duplicate a few common definitions between DFAPacketizer.cpp and
DFAPacketizerEmitter.cpp to avoid including files from CodeGen
in TableGen.

llvm-svn: 253820
2015-11-22 15:20:19 +00:00
Krzysztof Parzyszek b46557292c Hexagon V60/HVX DFA scheduler support
Extended DFA tablegen to:
  - added "-debug-only dfa-emitter" support to llvm-tblgen

  - defined CVI_PIPE* resources for the V60 vector coprocessor

  - allow specification of multiple required resources
    - supports ANDs of ORs
    - e.g. [SLOT2, SLOT3], [CVI_MPY0, CVI_MPY1] means:
           (SLOT2 OR SLOT3) AND (CVI_MPY0 OR CVI_MPY1)

  - added support for combo resources
    - allows specifying ORs of ANDs
    - e.g. [CVI_XLSHF, CVI_MPY01] means:
           (CVI_XLANE AND CVI_SHIFT) OR (CVI_MPY0 AND CVI_MPY1)

  - increased DFA input size from 32-bit to 64-bit
    - allows for a maximum of 4 AND'ed terms of 16 resources

  - supported expressions now include:

    expression     => term [AND term] [AND term] [AND term]
    term           => resource [OR resource]*
    resource       => one_resource | combo_resource
    combo_resource => (one_resource [AND one_resource]*)

Author: Dan Palermo <dpalermo@codeaurora.org>

kparzysz: Verified AMDGPU codegen to be unchanged on all llc
tests, except those dealing with instruction encodings.

Reapply the previous patch, this time without circular dependencies.

llvm-svn: 253793
2015-11-21 20:00:45 +00:00
Krzysztof Parzyszek 4ca21fc1aa Revert r253790: it breaks all builds for some reason.
llvm-svn: 253791
2015-11-21 17:38:33 +00:00
Krzysztof Parzyszek 220a9bc018 Hexagon V60/HVX DFA scheduler support
Extended DFA tablegen to:
  - added "-debug-only dfa-emitter" support to llvm-tblgen

  - defined CVI_PIPE* resources for the V60 vector coprocessor

  - allow specification of multiple required resources
    - supports ANDs of ORs
    - e.g. [SLOT2, SLOT3], [CVI_MPY0, CVI_MPY1] means:
           (SLOT2 OR SLOT3) AND (CVI_MPY0 OR CVI_MPY1)

  - added support for combo resources
    - allows specifying ORs of ANDs
    - e.g. [CVI_XLSHF, CVI_MPY01] means:
           (CVI_XLANE AND CVI_SHIFT) OR (CVI_MPY0 AND CVI_MPY1)

  - increased DFA input size from 32-bit to 64-bit
    - allows for a maximum of 4 AND'ed terms of 16 resources

  - supported expressions now include:

    expression     => term [AND term] [AND term] [AND term]
    term           => resource [OR resource]*
    resource       => one_resource | combo_resource
    combo_resource => (one_resource [AND one_resource]*)

Author: Dan Palermo <dpalermo@codeaurora.org>

kparzysz: Verified AMDGPU codegen to be unchanged on all llc
tests, except those dealing with instruction encodings.

llvm-svn: 253790
2015-11-21 17:23:52 +00:00
Matthias Braun 93563e7032 ScheduleDAGInstrs: Remove IsPostRA flag; NFC
ScheduleDAGInstrs doesn't behave differently before or after register
allocation. It was only used in a method of MachineSchedulerBase which
behaved differently in MachineScheduler/PostMachineScheduler. Change
this to let MachineScheduler/PostMachineScheduler just pass in a
parameter to that function.

The order of the LiveIntervals* and bool RemoveKillFlags paramters have
been switched to make out-of-tree code fail instead of unintentionally
passing a value intended for the IsPostRA flag to the (previously
following and default initialized) RemoveKillFlags.

Differential Revision: http://reviews.llvm.org/D14245

llvm-svn: 251883
2015-11-03 01:53:29 +00:00
Duncan P. N. Exon Smith d83547a16e CodeGen: Remove a few more ilist iterator implicit conversions, NFC
llvm-svn: 249875
2015-10-09 18:44:40 +00:00
Alexander Kornienko f00654e31b Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)
Apparently, the style needs to be agreed upon first.

llvm-svn: 240390
2015-06-23 09:49:53 +00:00
Alexander Kornienko 70bc5f1398 Fixed/added namespace ending comments using clang-tidy. NFC
The patch is generated using this command:

tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
  -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
  llvm/lib/


Thanks to Eugene Kosov for the original patch!

llvm-svn: 240137
2015-06-19 15:57:42 +00:00
Eric Christopher 2a321f74f0 Remove the TargetMachine from DFAPacketizer since it was only
being used to grab subtarget specific things that we can grab
from the MachineFunction anyhow.

llvm-svn: 219650
2014-10-14 01:03:16 +00:00
Eric Christopher 143f02c47d Remove unused argument to CreateTargetScheduleState and change
the TargetMachine to a TargetSubtargetInfo since everything
we wanted is off of that.

llvm-svn: 219382
2014-10-09 01:59:35 +00:00
Alexey Samsonov ea0aee622e Cleanup: Delete seemingly unused reference to MachineDominatorTree from ScheduleDAGInstrs.
llvm-svn: 216124
2014-08-20 20:57:26 +00:00
Alexey Samsonov 8968e6d1b0 Fix null reference creation in ScheduleDAGInstrs constructor call.
Both MachineLoopInfo and MachineDominatorTree may be null in ScheduleDAGMI
constructor call. It is undefined behavior to take references to these values.

This bug is reported by UBSan.

llvm-svn: 216118
2014-08-20 19:36:05 +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
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
Craig Topper 4584cd54e3 [C++11] Add 'override' keyword to virtual methods that override their base class.
llvm-svn: 203220
2014-03-07 09:26:03 +00:00