Commit Graph

28 Commits

Author SHA1 Message Date
Eric Christopher fc6de428c8 Have MachineFunction cache a pointer to the subtarget to make lookups
shorter/easier and have the DAG use that to do the same lookup. This
can be used in the future for TargetMachine based caching lookups from
the MachineFunction easily.

Update the MIPS subtarget switching machinery to update this pointer
at the same time it runs.

llvm-svn: 214838
2014-08-05 02:39:49 +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 e96dd8975f [Modules] Make Support/Debug.h modular. This requires it to not change
behavior based on other files defining DEBUG_TYPE, which means it cannot
define DEBUG_TYPE at all. This is actually better IMO as it forces folks
to define relevant DEBUG_TYPEs for their files. However, it requires all
files that currently use DEBUG(...) to define a DEBUG_TYPE if they don't
already. I've updated all such files in LLVM and will do the same for
other upstream projects.

This still leaves one important change in how LLVM uses the DEBUG_TYPE
macro going forward: we need to only define the macro *after* header
files have been #include-ed. Previously, this wasn't possible because
Debug.h required the macro to be pre-defined. This commit removes that.
By defining DEBUG_TYPE after the includes two things are fixed:

- Header files that need to provide a DEBUG_TYPE for some inline code
  can do so by defining the macro before their inline code and undef-ing
  it afterward so the macro does not escape.

- We no longer have rampant ODR violations due to including headers with
  different DEBUG_TYPE definitions. This may be mostly an academic
  violation today, but with modules these types of violations are easy
  to check for and potentially very relevant.

Where necessary to suppor headers with DEBUG_TYPE, I have moved the
definitions below the includes in this commit. I plan to move the rest
of the DEBUG_TYPE macros in LLVM in subsequent commits; this one is big
enough.

The comments in Debug.h, which were hilariously out of date already,
have been updated to reflect the recommended practice going forward.

llvm-svn: 206822
2014-04-21 22:55:11 +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
Nuno Lopes 31617266ea remove a bunch of unused private methods
found with a smarter version of -Wunused-member-function that I'm playwing with.
Appologies in advance if I removed someone's WIP code.

 include/llvm/CodeGen/MachineSSAUpdater.h            |    1 
 include/llvm/IR/DebugInfo.h                         |    3 
 lib/CodeGen/MachineSSAUpdater.cpp                   |   10 --
 lib/CodeGen/PostRASchedulerList.cpp                 |    1 
 lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp    |   10 --
 lib/IR/DebugInfo.cpp                                |   12 --
 lib/MC/MCAsmStreamer.cpp                            |    2 
 lib/Support/YAMLParser.cpp                          |   39 ---------
 lib/TableGen/TGParser.cpp                           |   16 ---
 lib/TableGen/TGParser.h                             |    1 
 lib/Target/AArch64/AArch64TargetTransformInfo.cpp   |    9 --
 lib/Target/ARM/ARMCodeEmitter.cpp                   |   12 --
 lib/Target/ARM/ARMFastISel.cpp                      |   84 --------------------
 lib/Target/Mips/MipsCodeEmitter.cpp                 |   11 --
 lib/Target/Mips/MipsConstantIslandPass.cpp          |   12 --
 lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp              |   21 -----
 lib/Target/NVPTX/NVPTXISelDAGToDAG.h                |    2 
 lib/Target/PowerPC/PPCFastISel.cpp                  |    1 
 lib/Transforms/Instrumentation/AddressSanitizer.cpp |    2 
 lib/Transforms/Instrumentation/BoundsChecking.cpp   |    2 
 lib/Transforms/Instrumentation/MemorySanitizer.cpp  |    1 
 lib/Transforms/Scalar/LoopIdiomRecognize.cpp        |    8 -
 lib/Transforms/Scalar/SCCP.cpp                      |    1 
 utils/TableGen/CodeEmitterGen.cpp                   |    2 
 24 files changed, 2 insertions(+), 261 deletions(-)

llvm-svn: 204560
2014-03-23 17:09:26 +00:00
Craig Topper b94011fd28 Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.
llvm-svn: 186274
2013-07-14 04:42:23 +00:00
Jakob Stoklund Olesen f623e9870d Use MachineInstrBuilder in a few CodeGen passes.
This automatically passes a context pointer to MI->addOperand().

llvm-svn: 170711
2012-12-20 18:08:06 +00:00
Jakob Stoklund Olesen b159b5ff0d Remove the explicit MachineInstrBuilder(MI) constructor.
Use the version that also takes an MF reference instead.

It would technically be possible to extract an MF reference from the MI
as MI->getParent()->getParent(), but that would not work for MIs that
are not inserted into any basic block.

Given the reasonably small number of places this constructor was used at
all, I preferred the compile time check to a run time assertion.

llvm-svn: 170588
2012-12-19 21:31:56 +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
Richard Smith 0ff8f0eaf9 Fix undefined behavior: binding null pointer to reference. No functionality change.
llvm-svn: 161853
2012-08-14 05:31:26 +00:00
Chandler Carruth c60fbe6b58 Fix two rather subtle internal vs. external linker issues.
I'll admit I'm not entirely satisfied with this change, but it seemed
the cleanest option. Other suggestions quite welcome

The issue is that the traits specializations have static methods which
return the typedef'ed PHI_iterator type. In both the IR and MI layers
this is typedef'ed to a custom iterator class defined in an anonymous
namespace giving the types and the functions returning them internal
linkage. However, because the traits specialization is defined in the
'llvm' namespace (where it has to be, specialized template lives there),
and is in turn used in the templated implementation of the SSAUpdater.
This led to the linkage conflict that Clang now warns about.

The simplest solution to me was just to define the PHI_iterator as
a nested class inside the trait specialization. That way it still
doesn't get scoped widely, it can't be accidentally reused somewhere,
etc. This is a little gross just because nested class definitions are
a little gross, but the alternatives seem more ad-hoc.

llvm-svn: 158799
2012-06-20 08:39:30 +00:00
David Blaikie 46a9f016c5 More dead code removal (using -Wunreachable-code)
llvm-svn: 148578
2012-01-20 21:51:11 +00:00
Evan Cheng c1610bede1 Mix some minor misuse of MachineBasicBlock iterator.
llvm-svn: 145903
2011-12-06 02:49:06 +00:00
Bob Wilson 01fcdaa7f5 Fix PR7096. When a block containing multiple defs is tail duplicated, the
SSAUpdater for the value from the first def may see uses of undefined values,
because the later defs will not have been updated yet.

llvm-svn: 103407
2010-05-10 17:14:26 +00:00
Bob Wilson d1b38e317d Combine the implementations of the core part of the SSAUpdater and
MachineSSAUpdater to avoid duplicating all the code.

llvm-svn: 103060
2010-05-04 23:18:19 +00:00
Bob Wilson d561daf520 Update MachineSSAUpdater with the same changes I made for the IR-level
SSAUpdater.  I'm going to try to refactor this to share most of the code
between them.

llvm-svn: 102353
2010-04-26 17:40:49 +00:00
Chris Lattner bd009d6d6d stop using DebugLoc::getUnknownLoc()
llvm-svn: 100215
2010-04-02 20:17:23 +00:00
Chris Lattner c9505b68c8 fix missing #includes.
llvm-svn: 95745
2010-02-10 01:17:36 +00:00
Chris Lattner b06015aa69 move target-independent opcodes out of TargetInstrInfo
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687
2010-02-09 19:54:29 +00:00
David Greene 646aacb097 Change errs() to dbgs().
llvm-svn: 92548
2010-01-05 00:10:05 +00:00
Evan Cheng fb1654d467 Watch out for duplicated PHI instructions.
llvm-svn: 90816
2009-12-07 23:11:03 +00:00
Evan Cheng cc77062194 Pre-regalloc tale duplication. Work in progress.
llvm-svn: 90759
2009-12-07 10:15:19 +00:00
Evan Cheng 92c310cb79 If BB is empty, insert PHI before end() instead of front().
llvm-svn: 90744
2009-12-07 03:07:01 +00:00
Evan Cheng 0f1cc35c65 Don't try to be cute with undef optimization here. Let ProcessImplicitDefs handle it.
llvm-svn: 90566
2009-12-04 09:23:37 +00:00
Evan Cheng e156f611ab - If the reaching definition is an undef and the use is a PHI, add the implicit_def to the end of the source block.
- When reaching value is replaced with another, update the cache as well.

llvm-svn: 90501
2009-12-04 00:09:05 +00:00
Evan Cheng b2c1529d8f Handle undef values properly.
llvm-svn: 90489
2009-12-03 21:51:55 +00:00
Evan Cheng 7145382389 Fill out codegen SSA updater. It's not yet tested.
llvm-svn: 90395
2009-12-03 02:31:43 +00:00
Evan Cheng 20e9d030c9 Skeleton for MachineInstr level SSA updater.
llvm-svn: 90353
2009-12-02 22:02:52 +00:00