Commit Graph

141 Commits

Author SHA1 Message Date
Saleem Abdulrasool 4e63fc498c TableGen: introduce support for MSBuiltin
Add MSBuiltin which is similar in vein to GCCBuiltin.  This allows for adding
intrinsics for Microsoft compatibility to individual instructions.  This is
needed to permit the creation of ARM specific MSVC extensions.

This is not currently in use, and requires an associated change in clang to
enable use of the intrinsics defined by this new class.  This merely sets the
LLVM portion of the infrastructure in place to permit the use of this
functionality.  A separate set of changes will enable the new intrinsics.

llvm-svn: 212350
2014-07-04 18:42:25 +00:00
Craig Topper 2a30d7889f Replace some assert(0)'s with llvm_unreachable.
llvm-svn: 211141
2014-06-18 05:05:13 +00:00
Richard Smith 6bc9df3859 Fix redefinition of default argument, found by modules build. It's not
entirely clear whether this should be valid with modules enabled, but the fixed
code is cleaner regardless.

Also fix a TU-local type that accidentally had external linkage.

llvm-svn: 206714
2014-04-20 20:26:39 +00:00
Nuno Lopes 9ced19abe8 remove some dead code
lib/Analysis/IPA/InlineCost.cpp         |   18 ------------------
 lib/Analysis/RegionPass.cpp             |    1 -
 lib/Analysis/TypeBasedAliasAnalysis.cpp |    1 -
 lib/Transforms/Scalar/LoopUnswitch.cpp  |   21 ---------------------
 lib/Transforms/Utils/LCSSA.cpp          |    2 --
 lib/Transforms/Utils/LoopSimplify.cpp   |    6 ------
 utils/TableGen/AsmWriterEmitter.cpp     |   13 -------------
 utils/TableGen/DFAPacketizerEmitter.cpp |    7 -------
 utils/TableGen/IntrinsicEmitter.cpp     |    2 --
 9 files changed, 71 deletions(-)

llvm-svn: 206506
2014-04-17 22:26:44 +00:00
Tim Northover 4516de3412 Intrinsics: add LLVMHalfElementsVectorType constraint
This is like the LLVMMatchType, except the verifier checks that the
second argument is a vector with the same base type and half the
number of elements.

This will be used by the ARM64 backend.

llvm-svn: 205079
2014-03-29 07:04:54 +00:00
Tim Northover aa3cf1e691 Intrinsics: expand semantics of LLVMExtendedVectorType (& trunc)
These are used in the ARM backends to aid type-checking on patterns involving
intrinsics. By making sure one argument is an extended/truncated version of
another.

However, there's no reason to limit them to just vectors types. For example
AArch64 has the instruction "uqshrn sD, dN, #imm" which would naturally use an
intrinsic taking an i64 and returning an i32.

llvm-svn: 205003
2014-03-28 12:31:39 +00:00
Eli Bendersky 2281ef91e6 Expose "noduplicate" attribute as a property for intrinsics.
The "noduplicate" function attribute exists to prevent certain optimizations
from duplicating calls to the function. This is important on platforms where
certain function call duplications are unsafe (for example execution barriers
for CUDA and OpenCL).

This patch makes it possible to specify intrinsics as "noduplicate" and
translates that to the appropriate function attribute.

llvm-svn: 204200
2014-03-18 23:51:07 +00:00
Benjamin Kramer 3a377bce4e Now that we have C++11, turn simple functors into lambdas and remove a ton of boilerplate.
No intended functionality change.

llvm-svn: 202588
2014-03-01 11:47:00 +00:00
Filip Pizlo c95bd8d88f Stackmaps are used for OSR exits, which is a custom kind of unwinding. Hence, they
should not be marked nounwind.

Marking them nounwind caused crashes in the WebKit FTL JIT, because if we enable 
sufficient optimizations, LLVM starts eliding compact_unwind sections (or any unwind 
data for that matter), making deoptimization via stackmaps impossible.

This changes the stackmap intrinsic to be may-throw, adds a test for exactly the 
sympton that WebKit saw, and fixes TableGen to handle un-attributed intrinsics.

Thanks to atrick and philipreames for reviewing this.

llvm-svn: 201826
2014-02-20 23:57:31 +00:00
Craig Topper 8561de90d7 Replace tablegen uses of EVT with MVT. Add isOverloaded() to MVT to facilitate. Remove TGValueTypes.cpp since its unused now (and may have been before).
llvm-svn: 200036
2014-01-24 20:50:47 +00:00
Owen Anderson b88cc2fc52 Small improvement to InstrinsicEmitter::EmitAttributes. This change removes the “pushing” and “clearing” of the SmallVector and instead uses const arrays to pass the attributeKinds to AttributeSet::get .
Patch by Aditya Nandakumar.

llvm-svn: 194899
2013-11-16 00:20:01 +00:00
Andrew Trick a2efd99bdf Enable variable arguments support for intrinsics.
llvm-svn: 193766
2013-10-31 17:18:11 +00:00
Andrew Trick d4d1d9c06e whitespace
llvm-svn: 193765
2013-10-31 17:18:07 +00:00
Jiangning Liu 63dc840fc5 Initial support for Neon scalar instructions.
Patch by Ana Pazos.

1.Added support for v1ix and v1fx types.
2.Added Scalar Pairwise Reduce instructions.
3.Added initial implementation of Scalar Arithmetic instructions.

llvm-svn: 191263
2013-09-24 02:47:27 +00:00
Justin Holewinski b3d630ca21 Fix a bug in TableGen where the intrinsic function name recognizer could mis-identify names if one was a prefix substring of the other
For two intrinsics 'llvm.nvvm.texsurf.handle' and 'llvm.nvvm.texsurf.handle.internal',
TableGen was emitting matching code like:

  if (Name.startswith("llvm.nvvm.texsurf.handle")) ...
  if (Name.startswith("llvm.nvvm.texsurf.handle.internal")) ...

We can never match "llvm.nvvm.texsurf.handle.internal" here because it will
always be erroneously matched by the first condition.

The fix is to sort the intrinsic names and emit them in reverse order.

llvm-svn: 187119
2013-07-25 12:32:00 +00:00
Nick Lewycky c2ec0725ce Extend 'readonly' and 'readnone' to work on function arguments as well as
functions. Make the function attributes pass add it to known library functions
and when it can deduce it.

llvm-svn: 185735
2013-07-06 00:29:58 +00:00
Bill Wendling 4d3491cbea Use the AttributeSet instead of AttributeWithIndex.
In the future, AttributeWithIndex won't be used anymore. Besides, it exposes the
internals of the AttributeSet to outside users, which isn't goodness.

llvm-svn: 173606
2013-01-27 03:25:05 +00:00
Michael Ilseman 6c6d715c15 Support for half intrinsics. Pushes MMX into slower encoding path.
llvm-svn: 172159
2013-01-11 01:45:05 +00:00
Bill Wendling c79e42c5ce Change 'AttrVal' to 'AttrKind' to better reflect that it's a kind of attribute instead of the value of the attribute.
llvm-svn: 170972
2012-12-22 00:37:52 +00:00
Bill Wendling 3d7b0b8ac7 Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future.
llvm-svn: 170502
2012-12-19 07:18:57 +00:00
Bill Wendling e94d843e43 s/AttrListPtr/AttributeSet/g to better label what this class is going to be in the near future.
llvm-svn: 169651
2012-12-07 23:16:57 +00:00
Bill Wendling f86efb9b98 Make the AttrListPtr object a part of the LLVMContext.
When code deletes the context, the AttributeImpls that the AttrListPtr points to
are now invalid. Therefore, instead of keeping a separate managed static for the
AttrListPtrs that's reference counted, move it into the LLVMContext and delete
it when deleting the AttributeImpls.

llvm-svn: 168354
2012-11-20 05:09:20 +00:00
Joerg Sonnenberger 635debe85b Remove exception handling usage from tblgen.
Most places can use PrintFatalError as the unwinding mechanism was not
used for anything other than printing the error. The single exception
was CodeGenDAGPatterns.cpp, where intermediate errors during type
resolution were ignored to simplify incremental platform development.
This use is replaced by an error flag in TreePattern and bailout earlier
in various places if it is set. 

llvm-svn: 166712
2012-10-25 20:33:17 +00:00
Bill Wendling fbd38fe2e3 Add an enum for the return and function indexes into the AttrListPtr object. This gets rid of some magic numbers.
llvm-svn: 165924
2012-10-15 07:29:08 +00:00
Bill Wendling d079a446d7 Attributes Rewrite
Convert the internal representation of the Attributes class into a pointer to an
opaque object that's uniqued by and stored in the LLVMContext object. The
Attributes class then becomes a thin wrapper around this opaque
object. Eventually, the internal representation will be expanded to include
attributes that represent code generation options, etc.

llvm-svn: 165917
2012-10-15 04:46:55 +00:00
Bill Wendling ed42e799dc Pass into the AttributeWithIndex::get method an ArrayRef of attribute
enums. These are then created via the correct Attributes creation method.

llvm-svn: 165607
2012-10-10 06:13:42 +00:00
Jakob Stoklund Olesen e6aed139f0 Write llvm-tblgen backends as functions instead of sub-classes.
The TableGenBackend base class doesn't do much, and will be removed
completely soon.

Patch by Sean Silva!

llvm-svn: 158311
2012-06-11 15:37:55 +00:00
Chris Lattner 3cb6f83ebb switch AttrListPtr::get to take an ArrayRef, simplifying a lot of clients.
llvm-svn: 157556
2012-05-28 01:47:44 +00:00
Chris Lattner ff9e08baf9 rdar://11542750 - llvm.trap should be marked no return.
llvm-svn: 157551
2012-05-27 23:20:41 +00:00
Chris Lattner 144b619684 Reimplement the intrinsic verifier to use the same table as Intrinsic::getDefinition,
making it stronger and more sane.

Delete the code from tblgen that produced the old code.

Besides being a path forward in intrinsic sanity, this also eliminates a bunch of
machine generated code that was compiled into Function.o

llvm-svn: 157545
2012-05-27 19:37:05 +00:00
Chris Lattner f39c278384 move some code around so that Verifier.cpp can get access to the intrinsic info table.
llvm-svn: 157540
2012-05-27 18:28:35 +00:00
Chris Lattner c464416107 enhance the intrinsic info table to encode what *kind* of Any argument
it is (at the cost of 45 bytes of extra table space) so that the verifier can
start using it.

llvm-svn: 157536
2012-05-27 16:39:08 +00:00
Chris Lattner c5a825bb79 rearrange some code, no functionality change.
llvm-svn: 157523
2012-05-26 23:03:52 +00:00
Patrik Hägglund ca210d8432 Fixed typo in r156905.
llvm-svn: 157320
2012-05-23 12:34:56 +00:00
Chris Lattner 4f18aa8f04 small refinement to r157218 to save a tiny amount of table size in the common
case.

llvm-svn: 157312
2012-05-23 05:19:18 +00:00
Pete Cooper 243efd7ac3 Added address space qualifier to intrinsic PointerType arguments.
llvm-svn: 157218
2012-05-21 23:21:28 +00:00
Chris Lattner a3b0f52a72 enhance the intrinsic info stuff to emit encodings that don't fit in 32-bits into a
separate side table, using the handy SequenceToOffsetTable class.  This encodes all
these weird things into another 256 bytes, allowing all intrinsics to be encoded this way.

llvm-svn: 156995
2012-05-17 15:55:41 +00:00
Chris Lattner 3e34a7b93d finish encoding all of the interesting details of intrinsics. Now intrinsics
are only rejected because they can't be encoded into a 32-bit unit, not because
they contain an unencodable feature.

llvm-svn: 156978
2012-05-17 05:03:24 +00:00
Chris Lattner 827b253c63 strengthen the intrinsic descriptor stuff to be able to handle sin, cos and other
intrinsics that use passed-in arguments.

llvm-svn: 156977
2012-05-17 04:30:58 +00:00
Chris Lattner 786edd228a simplify code generated by tblgen that is not necessary since we dropped
compatibility with LLVM 2.x bitcode files.

llvm-svn: 156976
2012-05-17 04:07:48 +00:00
Francois Pichet 9522bfc87b I forgot the #ifdef _MSC_VER guard in my last commit.
llvm-svn: 156975
2012-05-17 04:00:03 +00:00
Francois Pichet b273b74373 Fix the MSVC 2010 build: disable the optimizer for a problematic function.
llvm-svn: 156973
2012-05-17 03:38:19 +00:00
Chris Lattner 7f0e7bae25 Significantly reduce the compiled size of Functions.cpp by turning a big blob of tblgen
generated code (for Intrinsic::getType) into a table.  This handles common cases right now,
but I plan to extend it to handle all cases and merge in type verification logic as well
in follow-on patches.

llvm-svn: 156905
2012-05-16 06:34:44 +00:00
Chris Lattner d785d060f9 have tblgen emit cast<> instead of dyn_cast<> when we know it must succeed.
llvm-svn: 156902
2012-05-16 04:51:09 +00:00
Douglas Gregor 12c1cd33f4 Move llvm-tblgen's StringMatcher into the TableGen library so it can
be used by clang-tblgen.

llvm-svn: 156000
2012-05-02 17:32:48 +00:00
Craig Topper 374f19cade Fix target specific intrinsic handling to adjust intrinsic number before doing attribute table lookup. Also fix attribute table lookup to handle 'invalid' intrinsic correctly. Fixes PR12542
llvm-svn: 154658
2012-04-13 06:14:57 +00:00
Benjamin Kramer c16e09bb80 TableGen: Don't emit the llvm intrinsic -> gcc builtin table, its only user was the c backend.
llvm-svn: 153432
2012-03-26 11:08:03 +00:00
Benjamin Kramer acd78d5092 Emit the "is an intrinsic overloaded" table as a bitfield.
llvm-svn: 151792
2012-03-01 02:16:57 +00:00
Benjamin Kramer aba3503639 Emit the intrinsic modref info as a lookup table instead of a huge switch.
Shrinks BasicAliasAnalysis.o from 106k to 56k on i386.

llvm-svn: 151781
2012-03-01 01:18:32 +00:00
Craig Topper ccd651cac8 Convert generated intrinsic attributes to use an array lookup as Chris suggested in PR11951.
llvm-svn: 151622
2012-02-28 06:32:00 +00:00