This is the first stage in refactoring the pipeliner and making it more
accessible for backends to override and control. This separates the logic and
state required to *emit* a scheudule from the logic that *computes* and
validates a schedule.
This will enable (a) new schedule emitters and (b) new modulo scheduling
implementations to coexist.
NFC.
Differential Revision: https://reviews.llvm.org/D67006
llvm-svn: 370500
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
llvm-svn: 369013
Implement necessary target hooks to enable MachinePipeliner for P9 only.
The pass is off by default, can be enabled with -ppc-enable-pipeliner for P9.
Differential Revision: https://reviews.llvm.org/D62164
llvm-svn: 363085
The current design use DFA to do resource tracking in SMS,
and DFA only support InstrItins, and also has scaling limitation.
This patch extend SMS to allow Subtarget to use ProcResource in
InstrSchedModel instead.
Differential Revision: https://reviews.llvm.org/D62163
llvm-svn: 361919
#pragma clang loop pipeline(disable)
Disable SWP optimization for the next loop.
“disable” is the only possible value.
#pragma clang loop pipeline_initiation_interval(number)
Set value of initiation interval for SWP
optimization to specified number value for
the next loop. Number is the positive value
greater than 0.
These pragmas could be used for debugging or reducing
compile time purposes. It is possible to disable SWP for
concrete loops to save compilation time or to find bugs
by not doing SWP to certain loops. It is possible to set
value of initiation interval to concrete number to save
compilation time by not doing extra pipeliner passes or
to check created schedule for specific initiation interval.
That is llvm part of the fix
Clang part of fix: https://reviews.llvm.org/D55710
Patch by Alexey Lapshin!
Differential Revision: https://reviews.llvm.org/D56403
llvm-svn: 351923
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
Split MachinePipeliner code into header and cpp files to allow
inheritance from SwingSchedulerDAG.
This reapplies https://reviews.llvm.org/D56084 after moving the
implementation of the dump functions into the .cpp files. This fixes a
linker error when building with Clang modules enables and local
submodule visibility disabled.
Original patch by Lama Saba <lama.saba@intel.com>!
llvm-svn: 351077
This reverts commit rL350497
reported remaining issues seem to be unrelated to modules or this change.
more info: https://reviews.llvm.org/D56084
llvm-svn: 350621
Split MachinePipeliner code into header and cpp files to allow inheritance from SwingSchedulerDAG
Differential Revision: https://reviews.llvm.org/D53477
llvm-svn: 345008
