Commit Graph

27 Commits

Author SHA1 Message Date
Michael Liao 70356574bb Remove trailing whitespace to trigger re-cmaking
llvm-svn: 314728
2017-10-02 21:54:38 +00:00
Nirav Dave c1b6aa77bb [DAG] Move BaseIndexOffset into separate Libarary. NFC.
Move BaseIndexOffset analysis out of DAGCombiner for use in other
files.

llvm-svn: 305921
2017-06-21 15:40:43 +00:00
Chris Bieneman 05c279fc4b [CMake] NFC. Updating CMake dependency specifications
This patch updates a bunch of places where add_dependencies was being explicitly called to add dependencies on intrinsics_gen to instead use the DEPENDS named parameter. This cleanup is needed for a patch I'm working on to add a dependency debugging mode to the build system.

llvm-svn: 287206
2016-11-17 04:36:50 +00:00
Benjamin Kramer f9172fd4ac Rename TargetSelectionDAGInfo into SelectionDAGTargetInfo and move it to CodeGen/
It's a SelectionDAG thing, not a Target thing.

llvm-svn: 258939
2016-01-27 16:32:26 +00:00
Philip Reames 1a1bdb22bf [Statepoints 3/4] Statepoint infrastructure for garbage collection: SelectionDAGBuilder
This is the third patch in a small series.  It contains the CodeGen support for lowering the gc.statepoint intrinsic sequences (223078) to the STATEPOINT pseudo machine instruction (223085).  The change also includes the set of helper routines and classes for working with gc.statepoints, gc.relocates, and gc.results since the lowering code uses them.  

With this change, gc.statepoints should be functionally complete.  The documentation will follow in the fourth change, and there will likely be some cleanup changes, but interested parties can start experimenting now.

I'm not particularly happy with the amount of code or complexity involved with the lowering step, but at least it's fairly well isolated.  The statepoint lowering code is split into it's own files and anyone not working on the statepoint support itself should be able to ignore it.  

During the lowering process, we currently spill aggressively to stack. This is not entirely ideal (and we have plans to do better), but it's functional, relatively straight forward, and matches closely the implementations of the patchpoint intrinsics.  Most of the complexity comes from trying to keep relocated copies of values in the same stack slots across statepoints.  Doing so avoids the insertion of pointless load and store instructions to reshuffle the stack.  The current implementation isn't as effective as I'd like, but it is functional and 'good enough' for many common use cases.  

In the long term, I'd like to figure out how to integrate the statepoint lowering with the register allocator.  In principal, we shouldn't need to eagerly spill at all.  The register allocator should do any spilling required and the statepoint should simply record that fact.  Depending on how challenging that turns out to be, we may invest in a smarter global stack slot assignment mechanism as a stop gap measure.  

Reviewed by: atrick, ributzka

llvm-svn: 223137
2014-12-02 18:50:36 +00:00
NAKAMURA Takumi 704de074b8 llvm/lib: [CMake] Add explicit dependency to intrinsics_gen.
llvm-svn: 159112
2012-06-24 13:32:01 +00:00
Bill Wendling 508a3e5185 Refactor the SelectionDAG's 'dump' methods into their own .cpp file.
No functionality change.

llvm-svn: 152611
2012-03-13 05:47:27 +00:00
Andrew Trick 3441597f84 fix cmake
llvm-svn: 149553
2012-02-01 22:28:29 +00:00
Andrew Trick d06df96a7c VLIW specific scheduler framework that utilizes deterministic finite automaton (DFA).
This new scheduler plugs into the existing selection DAG scheduling framework. It is a top-down critical path scheduler that tracks register pressure and uses a DFA for pipeline modeling.

Patch by Sergei Larin!

llvm-svn: 149547
2012-02-01 22:13:57 +00:00
Daniel Dunbar 539d0a8a09 build/CMake: Finish removal of add_llvm_library_dependencies.
llvm-svn: 145420
2011-11-29 19:25:30 +00:00
Douglas Gregor 0cc574eee7 Really unbreak CMake build
llvm-svn: 142822
2011-10-24 18:10:52 +00:00
Douglas Gregor d0800fda95 Unbreak CMake build
llvm-svn: 142821
2011-10-24 18:09:23 +00:00
Chandler Carruth 9d7feab3e0 Rewrite the CMake build to use explicit dependencies between libraries,
specified in the same file that the library itself is created. This is
more idiomatic for CMake builds, and also allows us to correctly specify
dependencies that are missed due to bugs in the GenLibDeps perl script,
or change from compiler to compiler. On Linux, this returns CMake to
a place where it can relably rebuild several targets of LLVM.

I have tried not to change the dependencies from the ones in the current
auto-generated file. The only places I've really diverged are in places
where I was seeing link failures, and added a dependency. The goal of
this patch is not to start changing the dependencies, merely to move
them into the correct location, and an explicit form that we can control
and change when necessary.

This also removes a serialization point in the build because we don't
have to scan all the libraries before we begin building various tools.
We no longer have a step of the build that regenerates a file inside the
source tree. A few other associated cleanups fall out of this.

This isn't really finished yet though. After talking to dgregor he urged
switching to a single CMake macro to construct libraries with both
sources and dependencies in the arguments. Migrating from the two macros
to that style will be a follow-up patch.

Also, llvm-config is still generated with GenLibDeps.pl, which means it
still has slightly buggy dependencies. The internal CMake
'llvm-config-like' macro uses the correct explicitly specified
dependencies however. A future patch will switch llvm-config generation
(when using CMake) to be based on these deps as well.

This may well break Windows. I'm getting a machine set up now to dig
into any failures there. If anyone can chime in with problems they see
or ideas of how to solve them for Windows, much appreciated.

llvm-svn: 136433
2011-07-29 00:14:25 +00:00
Oscar Fuentes b4b12535e8 Removed a bunch of unnecessary target_link_libraries.
llvm-svn: 114999
2010-09-28 22:39:14 +00:00
Michael J. Spencer 93c9b2ea93 Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."
This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

llvm-svn: 113819
2010-09-13 23:59:48 +00:00
Michael J. Spencer dc38d36ccb CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.
llvm-svn: 113632
2010-09-10 21:14:25 +00:00
Dan Gohman 498e5f899d Move CallingConvLower.cpp out of the SelectionDAG directory.
llvm-svn: 107781
2010-07-07 15:15:27 +00:00
Dan Gohman c4759a5b97 Create a new TargetSelectionDAGInfo class. This will eventually acquire
SelectionDAG-specific parts of TargetLowering.

llvm-svn: 101537
2010-04-16 21:12:11 +00:00
Dan Gohman 1a6c47f1cb Rename SelectionDAGLowering to SelectionDAGBuilder, and rename
SelectionDAGBuild.cpp to SelectionDAGBuilder.cpp.

llvm-svn: 89681
2009-11-23 18:04:58 +00:00
Ted Kremenek 9b6515794f Update CMake file.
llvm-svn: 89671
2009-11-23 17:26:04 +00:00
Dan Gohman b8120770b4 Create a new InstrEmitter class for translating SelectionDAG nodes
into MachineInstrs. This is mostly just moving the code from
ScheduleDAGSDNodesEmit.cpp into a new class. This decouples MachineInstr
emitting from scheduling.

llvm-svn: 83699
2009-10-10 01:32:21 +00:00
Ted Kremenek 39816d9157 Lexically order files in CMakeLists.txt files.
llvm-svn: 75831
2009-07-15 21:08:16 +00:00
Douglas Gregor 6141511621 CMake build fixes, from Xerxes Ranby
llvm-svn: 74720
2009-07-02 18:53:52 +00:00
Eli Friedman cd2e0cd297 Update for CMakeLists; untested, so tell me if there are issues.
llvm-svn: 72360
2009-05-24 09:13:13 +00:00
Dan Gohman 60cb69e665 Experimental post-pass scheduling support. Post-pass scheduling
is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.

llvm-svn: 59676
2008-11-19 23:18:57 +00:00
Dan Gohman d2760c0473 Move ScheduleDAGList's LatencyPriorityQueue class out to a separate file.
llvm-svn: 59340
2008-11-15 00:23:40 +00:00
Oscar Fuentes a229b3c9a7 Initial support for the CMake build system.
llvm-svn: 56419
2008-09-22 01:08:49 +00:00