Commit Graph

2209 Commits

Author SHA1 Message Date
Arpith Chacko Jacob bc126344e1 [OpenMP] Support for num_teams-clause on the 'target teams' directive.
The num_teams-clause on the combined directive applies to the
'teams' region of this construct. We modify the NumTeamsClause
class to capture the clause expression within the 'target' region.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D29085

llvm-svn: 293048
2017-01-25 11:28:18 +00:00
Arpith Chacko Jacob 33c849a007 [OpenMP] Support for the num_threads-clause on 'target parallel'.
The num_threads-clause on the combined directive applies to the
'parallel' region of this construct. We modify the NumThreadsClause
class to capture the clause expression within the 'target' region.

The offload runtime call for 'target parallel' is changed to
__tgt_target_teams() with 1 team and the number of threads set by
this clause or a default if none.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D29082

llvm-svn: 292997
2017-01-25 00:57:16 +00:00
David L. Jones 267b884e81 Switch TableGen to emit calls to ASTRecordReader for AttrPCHRead.
Summary:
This patch changes TableGen-generated code in AttrPCHRead to call functions on
ASTRecordReader, instead of passing separate parameters to ASTReader. This is a
follow-up to r290217.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D28007

llvm-svn: 292868
2017-01-24 01:04:30 +00:00
Arpith Chacko Jacob fe4890a68b [OpenMP] Support for the if-clause on the combined directive 'target parallel'.
The if-clause on the combined directive potentially applies to both the
'target' and the 'parallel' regions.  Codegen'ing the if-clause on the
combined directive requires additional support because the expression in
the clause must be captured by the 'target' capture statement but not
the 'parallel' capture statement.  Note that this situation arises for
other clauses such as num_threads.

The OMPIfClause class inherits OMPClauseWithPreInit to support capturing
of expressions in the clause.  A member CaptureRegion is added to
OMPClauseWithPreInit to indicate which captured statement (in this case
'target' but not 'parallel') captures these expressions.

To ensure correct codegen of captured expressions in the presence of
combined 'target' directives, OMPParallelScope was added to 'parallel'
codegen.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D28781

llvm-svn: 292437
2017-01-18 20:40:48 +00:00
Graydon Hoare 9c982440a2 [ASTReader] Add a DeserializationListener callback for IMPORTED_MODULES
Summary:
Add a callback from ASTReader to DeserializationListener when the former
reads an IMPORTED_MODULES block. This supports Swift in using PCH for
bridging headers.

Reviewers: doug.gregor, manmanren, bruno

Reviewed By: manmanren

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D28779

llvm-svn: 292436
2017-01-18 20:36:59 +00:00
George Rimar c39f5491a4 [Clang] - Update code to match upcoming llvm::zlib API.
D28684 changed llvm::zlib to return Error instead of Status.
It was accepted and committed in r292214, but then reverted in r292217
because I missed that clang code also needs to be updated.

Patch do that.

D28684 recommitted again as r292226

Differential revision: https://reviews.llvm.org/D28807

llvm-svn: 292227
2017-01-17 15:45:31 +00:00
Malcolm Parsons a3220ce6a3 Tracking exception specification source locations
Summary:
We do not currently track the source locations for exception specifications such
that their source range can be queried through the AST. This leads to trying to
write more complex code to determine the source range for uses like FixItHints
(see D18575 for an example). In addition to use within tools like clang-tidy, I
think this information may become more important to track as exception
specifications become more integrated into the type system.

Patch by Don Hinton.

Reviewers: rsmith

Subscribers: malcolm.parsons, sbarzowski, alexfh, hintonda, cfe-commits

Differential Revision: https://reviews.llvm.org/D20428

llvm-svn: 291771
2017-01-12 16:11:28 +00:00
Reid Kleckner 0d15738f3b Serialize the UsesSEH bit on FunctionDecl
Fixes PR31539

llvm-svn: 291600
2017-01-10 21:27:03 +00:00
Kelvin Li da68118729 [OpenMP] Sema and parsing for 'target teams distribute simd’ pragma
This patch is to implement sema and parsing for 'target teams distribute simd’ pragma.
    
Differential Revision: https://reviews.llvm.org/D28252

llvm-svn: 291579
2017-01-10 18:08:18 +00:00
Manman Ren ffd3e9d766 PCH: fix a regression that reports a module is defined in both pch and pcm.
In r276159, we started to say that a module X is defined in a pch if we specify
-fmodule-name when building the pch. This caused a regression that reports
module X is defined in both pch and pcm if we generate the pch with
-fmodule-name=X and then in a separate clang invocation, we include the pch and
also import X.pcm.

This patch adds an option CompilingPCH similar to CompilingModule. When we use
-fmodule-name=X while building a pch, modular headers in X will be textually
included and the compiler knows that we are not building module X, so we don't
put module X in SUBMODULE_DEFINITION of the pch.

Differential Revision: http://reviews.llvm.org/D28415

llvm-svn: 291465
2017-01-09 19:20:18 +00:00
David Blaikie 95dd362c77 Simplify ASTReader ctor by using in-class initializers for many member variables
llvm-svn: 291155
2017-01-05 18:45:45 +00:00
David Blaikie 9d7c1ba5cf Simplify ASTReader ctor by using in-class initializers (NSDMIs to the rest of you) for many member variables
llvm-svn: 291154
2017-01-05 18:45:43 +00:00
David Blaikie 61137e1a50 Use shared_ptr instead of IntrusiveRefCntPtr for ModuleFileExtension
The intrusiveness wasn't needed here, so this simplifies/clarifies the
ownership model.

llvm-svn: 291150
2017-01-05 18:23:18 +00:00
David Blaikie b44f0bfb3a Fix for LLVM Bitcode API change (to use std::shared_ptr)
llvm-svn: 291018
2017-01-04 22:36:43 +00:00
Kelvin Li 1851df563d [OpenMP] Sema and parsing for 'target teams distribute parallel for simd’ pragma
This patch is to implement sema and parsing for 'target teams distribute parallel for simd’ pragma.

Differential Revision: https://reviews.llvm.org/D28202

llvm-svn: 290862
2017-01-03 05:23:48 +00:00
Kelvin Li 80e8f56284 [OpenMP] Sema and parsing for 'target teams distribute parallel for’ pragma
This patch is to implement sema and parsing for 'target teams distribute parallel for’ pragma.

Differential Revision: https://reviews.llvm.org/D28160

llvm-svn: 290725
2016-12-29 22:16:30 +00:00
Kelvin Li 83c451e998 [OpenMP] Sema and parsing for 'target teams distribute' pragma
This patch is to implement sema and parsing for 'target teams distribute' pragma.

Differential Revision: https://reviews.llvm.org/D28015

llvm-svn: 290508
2016-12-25 04:52:54 +00:00
David L. Jones b6a8f02251 Rename several methods on ASTRecordReader to follow LLVM style (lowerCamelCase).
Summary:
This follows up to r290217, and makes functions on ASTRecordReader consistent
and valid style.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D28008

llvm-svn: 290236
2016-12-21 04:34:52 +00:00
David L. Jones be1557ac32 Store the "current position" index within the ASTRecordReader.
Summary:
For ASTDeclReader and ASTStmtReader, every parameter "unsigned &Idx" ultimately
comes from a variable that is defined on the stack, next to the RecordData. This
change moves that index into the ASTRecordReader.

TypeLocReader cannot be transitioned, due to TableGen-generated code which calls
ASTReader::GetTypeSourceInfo.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D27836

llvm-svn: 290217
2016-12-21 00:17:49 +00:00
Richard Smith 151c456858 [c++1z] P0195R2: Support pack-expansion of using-declarations.
This change introduces UsingPackDecl as a marker for the set of UsingDecls
produced by pack expansion of a single (unresolved) using declaration. This is
not strictly necessary (we just need to be able to map from the original using
declaration to its expansions somehow), but it's useful to maintain the
invariant that each declaration reference instantiates to refer to one
declaration.

This is a re-commit of r290080 (reverted in r290092) with a fix for a
use-after-lifetime bug.

llvm-svn: 290203
2016-12-20 21:35:28 +00:00
Bruno Cardoso Lopes c23af5707d [ASTReader] Sort RawComments before merging
`RawComments` are sorted by comparing underlying `SourceLocation`'s. This is
done by comparing `FileID` and `Offset`; when the `FileID` is the same it means
the locations are within the same TU and the `Offset` is used.

FileID, from the source code: "A mostly-opaque identifier, where 0 is
"invalid", >0 is this module, and <-1 is something loaded from another
module.". That said, when de-serializing SourceLocations, FileID's from
RawComments loaded from other modules get negative IDs where previously they
were positive. This makes imported RawComments unsorted, leading to a wrong
merge with other comments from the current TU. Fix that by sorting RawComments
properly after de-serialization and before merge.

This fixes an assertion in `ASTContext::getRawCommentForDeclNoCache`,
which fires only in a debug build of clang.

Differential Revision: https://reviews.llvm.org/D27546

rdar://problem/29287314

llvm-svn: 290134
2016-12-19 21:06:06 +00:00
Daniel Jasper 9949ead55a Revert "[c++1z] P0195R2: Support pack-expansion of using-declarations."
This reverts commit r290080 as it leads to many Clang crashes, e.g.:
http://lab.llvm.org:8011/builders/clang-cmake-aarch64-quick/builds/1814

llvm-svn: 290092
2016-12-19 10:09:25 +00:00
Richard Smith 22a250cd5d [c++1z] P0195R2: Support pack-expansion of using-declarations.
This change introduces UsingPackDecl as a marker for the set of UsingDecls
produced by pack expansion of a single (unresolved) using declaration. This is
not strictly necessary (we just need to be able to map from the original using
declaration to its expansions somehow), but it's useful to maintain the
invariant that each declaration reference instantiates to refer to one
declaration.

llvm-svn: 290080
2016-12-19 04:08:53 +00:00
Yaxun Liu cc2741ce85 Attempt to fix build failure and regressions due to r290056
Add llvm:: namespace to StringRef.
Make conversion between bool and uint64_t explicit.

llvm-svn: 290058
2016-12-18 06:35:06 +00:00
Yaxun Liu 5b74665a41 Recommit r289979 [OpenCL] Allow disabling types and declarations associated with extensions
Fixed undefined behavior due to cast integer to bool in initializer list.

llvm-svn: 290056
2016-12-18 05:18:55 +00:00
Kelvin Li bf594a5600 [OpenMP] Sema and parsing for 'target teams' pragma
This patch is to implement sema and parsing for 'target teams' pragma.

Differential Revision: https://reviews.llvm.org/D27818

llvm-svn: 290038
2016-12-17 05:48:59 +00:00
Yaxun Liu 35f6d66b0d Revert r289979 due to regressions
llvm-svn: 289991
2016-12-16 21:23:55 +00:00
Yaxun Liu 2e8331cab6 [OpenCL] Allow disabling types and declarations associated with extensions
Added a map to associate types and declarations with extensions.

Refactored existing diagnostic for disabled types associated with extensions and extended it to declarations for generic situation.

Fixed some bugs for types associated with extensions.

Allow users to use pragma to declare types and functions for supported extensions, e.g.

#pragma OPENCL EXTENSION the_new_extension_name : begin
// declare types and functions associated with the extension here
#pragma OPENCL EXTENSION the_new_extension_name : end

Differential Revision: https://reviews.llvm.org/D21698

llvm-svn: 289979
2016-12-16 19:22:08 +00:00
David L. Jones c4808b9e0a Add a class ASTRecordReader which wraps an ASTReader, a RecordData, and ModuleFile.
Summary:
When reading an ASTRecord, each RecordData is logically contained within a
single ModuleFile, and global(er) state is contained by a single ASTReader. This
means that any operations that read from a RecordData and reference an ASTReader
or a ModuleFile, will always reference the same ASTReader or ModuleFile.
ASTRecordReader groups these together so that parameters don't need to be
duplicated ad infinitum. Most uses of the Idx variable seem to be redunant
aliases as well, but I'll leave that for now.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D27784

llvm-svn: 289870
2016-12-15 20:53:26 +00:00
Richard Smith 418ed82eae Remove unused variable found by GCC warning.
llvm-svn: 289698
2016-12-14 19:45:03 +00:00
Richard Smith 30e304e2a6 Remove custom handling of array copies in lambda by-value array capture and
copy constructors of classes with array members, instead using
ArrayInitLoopExpr to represent the initialization loop.

This exposed a bug in the static analyzer where it was unable to differentiate
between zero-initialized and unknown array values, which has also been fixed
here.

llvm-svn: 289618
2016-12-14 00:03:17 +00:00
Richard Smith 410306bf6e Add two new AST nodes to represent initialization of an array in terms of
initialization of each array element:

 * ArrayInitLoopExpr is a prvalue of array type with two subexpressions:
   a common expression (an OpaqueValueExpr) that represents the up-front
   computation of the source of the initialization, and a subexpression
   representing a per-element initializer
 * ArrayInitIndexExpr is a prvalue of type size_t representing the current
   position in the loop

This will be used to replace the creation of explicit index variables in lambda
capture of arrays and copy/move construction of classes with array elements,
and also C++17 structured bindings of arrays by value (which inexplicably allow
copying an array by value, unlike all of C++'s other array declarations).

No uses of these nodes are introduced by this change, however.

llvm-svn: 289413
2016-12-12 02:53:20 +00:00
Graydon Hoare e7196af07d [modules] Add optional out-param to ASTReader::ReadAST for imported submodules.
Summary:
The Swift frontend is acquiring the ability to load non-module PCH files containing
bridging definitions from C/ObjC. As part of this work, it needs to know which submodules
were imported by a PCH in order to wrap them in local Swift modules. This information
is collected by ASTReader::ReadAST in a local vector, but is currently kept private.

The change here is just to make the type of the vector elements public, and provide
an optional out-parameter to the ReadAST method to provide the vector's contents to
a caller after a successful read.

Reviewers: manmanren, rsmith, doug.gregor

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D27580

llvm-svn: 289276
2016-12-09 21:45:49 +00:00
Nico Weber fd8707029e Don't assert when redefining a built-in macro in a PCH, PR29119
PCH files store the macro history for a given macro, and the whole history list
for one identifier is given to the Preprocessor at once via
Preprocessor::setLoadedMacroDirective(). This contained an assert that no macro
history exists yet for that identifier. That's usually true, but it's not true
for builtin macros, which are created in Preprocessor() before flags and pchs
are processed. Luckily, ASTWriter stops writing macro history lists at builtins
(see shouldIgnoreMacro() in ASTWriter.cpp), so the head of the history list was
missing for builtin macros. So make the assert weaker, and splice the history
list to the existing single define for builtins.

https://reviews.llvm.org/D27545

llvm-svn: 289228
2016-12-09 17:32:52 +00:00
Kelvin Li 7ade93f5e2 [OpenMP] Sema and parsing for 'teams distribute parallel for' pragma
This patch is to implement sema and parsing for 'teams distribute parallel for' pragma.
    
Differential Revision: https://reviews.llvm.org/D27345

llvm-svn: 289179
2016-12-09 03:24:30 +00:00
Joey Gouly e3c85de6df [OpenCL] Refactor read_only/write_only pipes.
This adds the access qualifier to the Pipe Type, rather than using a class
hierarchy. 

It also fixes mergeTypes for Pipes, by disallowing merges. Only identical
pipe types can be merged. The test case in invalid-pipes-cl2.0.cl is added
to check that.

llvm-svn: 288332
2016-12-01 11:30:49 +00:00
Kelvin Li 579e41ced2 [OpenMP] Sema and parsing for 'teams distribute parallel for simd' pragma
This patch is to implement sema and parsing for 'teams distribute parallel for simd' pragma.

Differential Revision: https://reviews.llvm.org/D27084

llvm-svn: 288294
2016-11-30 23:51:03 +00:00
Joey Gouly 5788b783ac [OpenCL] Introduce ReadPipeType and WritePipeType.
This allows Sema to diagnose passing a read_only pipe to a
write_only pipe argument.

llvm-svn: 287343
2016-11-18 14:10:54 +00:00
Simon Pilgrim 0b33f11164 Remove duplicate condition (PR30648). NFCI.
We only need to check that the bitstream entry is a Record.

llvm-svn: 287114
2016-11-16 16:11:08 +00:00
Pavel Labath ac71c8e298 [VFS] Replace TimeValue usage with std::chrono
Summary: NFCI

Reviewers: benlangmuir, zturner

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D25948

llvm-svn: 286356
2016-11-09 10:52:22 +00:00
Peter Collingbourne 77c89b6958 Bitcode: Decouple block info block state from reader.
As proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/106630.html

Move block info block state to a new class, BitstreamBlockInfo.
Clients may set the block info for a particular cursor with the
BitstreamCursor::setBlockInfo() method.

At this point BitstreamReader is not much more than a container for an
ArrayRef<uint8_t>, so remove it and replace all uses with direct uses
of memory buffers.

Differential Revision: https://reviews.llvm.org/D26259

llvm-svn: 286207
2016-11-08 04:17:11 +00:00
Peter Collingbourne 028eb5a3f8 Bitcode: Change reader interface to take memory buffers.
As proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/106595.html

This change also fixes an API oddity where BitstreamCursor::Read() would
return zero for the first read past the end of the bitstream, but would
report_fatal_error for subsequent reads. Now we always report_fatal_error
for all reads past the end. Updated clients to check for the end of the
bitstream before reading from it.

I also needed to add padding to the invalid bitcode tests in
test/Bitcode/. This is because the streaming interface was not checking that
the file size is a multiple of 4.

Differential Revision: https://reviews.llvm.org/D26219

llvm-svn: 285773
2016-11-02 00:08:19 +00:00
Peter Collingbourne d3a6c70b2d Bitcode: Simplify BitstreamWriter::EnterBlockInfoBlock() interface.
No block info block should need to define local abbreviations, so we can
always use a code width of 2.

Also change all block info block writers to use EnterBlockInfoBlock.

Differential Revision: https://reviews.llvm.org/D26168

llvm-svn: 285660
2016-11-01 01:18:57 +00:00
Richard Smith 842e46e606 [modules] Fix assert if multiple update records provide a definition for a
class template specialization and that specialization has attributes.

llvm-svn: 285160
2016-10-26 02:31:56 +00:00
Kelvin Li 4e325f77a9 Re-apply patch r279045.
llvm-svn: 285066
2016-10-25 12:50:55 +00:00
Manman Ren c8c9415644 Module: correctly set the module file kind when emitting file_modified.
rdar://28503343

Differential Revision: http://reviews.llvm.org/D25806

llvm-svn: 284899
2016-10-21 23:35:03 +00:00
Benjamin Kramer 33e9760376 Remove move constructors that are identical to the generated default move ctor.
llvm-svn: 284856
2016-10-21 18:55:07 +00:00
Benjamin Kramer a72a70aeb9 Revert "Reinstate r281429, reverted in r281452, with a fix for its mishandling of"
This reverts commit r284176. It still marks some modules as invisible
that should be visible. Will follow up with the author with a test case.

llvm-svn: 284382
2016-10-17 13:00:44 +00:00
Richard Smith edbc6e93e1 Reinstate r284008 reverted in r284081, with two fixes:
1) Merge and demote variable definitions when we find a redefinition in
MergeVarDecls, not only when we find one in AddInitializerToDecl (we only reach
the second case if it's the addition of the initializer itself that converts an
existing declaration into a definition). 

2) When rebuilding a redeclaration chain for a variable, if we merge two
definitions together, mark the definitions as merged so the retained definition
is made visible whenever the demoted definition would have been.

Original commit message (from r283882):

[modules] PR28752: Do not instantiate variable declarations which are not visible.

Original patch by Vassil Vassilev! Changes listed above are mine.

llvm-svn: 284284
2016-10-14 21:41:24 +00:00
Richard Smith b50df91178 Reinstate r281429, reverted in r281452, with a fix for its mishandling of
compiles without -fmodules-local-submodule-visibility. Original commit message:

[modules] When merging one definition into another, propagate the list of
re-exporting modules from the discarded definition to the retained definition.

llvm-svn: 284176
2016-10-13 23:04:14 +00:00
Richard Smith 88d10b68e0 Revert r284008. This is us to fail to instantiate static data members in some
cases. I'm working on reducing a testcase.

llvm-svn: 284081
2016-10-12 23:29:02 +00:00
Vassil Vassilev bb8fe3175a Reinstate r283887 and r283882.
Original message:
"[modules] PR28752: Do not instantiate variable declarations which are not visible.

https://reviews.llvm.org/D24508

Patch developed in collaboration with Richard Smith!"

llvm-svn: 284008
2016-10-12 11:57:08 +00:00
Vassil Vassilev f6b491041f Revert r283887 and r283882, until the issue is understood and fixed.
llvm-svn: 283890
2016-10-11 15:51:06 +00:00
Vassil Vassilev 4b3e7388d1 [modules] PR28752: Do not instantiate variable declarations which are not visible.
https://reviews.llvm.org/D24508

Patch developed in collaboration with Richard Smith!

llvm-svn: 283882
2016-10-11 13:57:36 +00:00
Mehdi Amini 004b9c7aae Store FileEntry::Filename as a StringRef instead of raw pointer (NFC)
llvm-svn: 283815
2016-10-10 22:52:47 +00:00
Richard Smith b2f0f05742 Re-commit r283722, reverted in r283750, with a fix for a CUDA-specific use of
past-the-end iterator.

Original commit message:

P0035R4: Semantic analysis and code generation for C++17 overaligned
allocation.

llvm-svn: 283789
2016-10-10 18:54:32 +00:00
Justin Lebar 28f09c50e2 [Sema] Use unique_ptr instead of raw pointers in the late-parsed templates map.
Summary:
This is possible now that MapVector supports move-only values.

Depends on D25404.

Reviewers: timshen

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D25405

llvm-svn: 283766
2016-10-10 16:26:08 +00:00
Daniel Jasper e9abe64816 Revert "P0035R4: Semantic analysis and code generation for C++17 overaligned allocation."
This reverts commit r283722. Breaks:
  Clang.SemaCUDA.device-var-init.cu
  Clang.CodeGenCUDA.device-var-init.cu

http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-expensive/884/

llvm-svn: 283750
2016-10-10 14:13:55 +00:00
Richard Smith 189e52fcdf P0035R4: Semantic analysis and code generation for C++17 overaligned
allocation.

llvm-svn: 283722
2016-10-10 06:42:31 +00:00
Justin Lebar 67a78a6cc0 [CUDA] Add #pragma clang force_cuda_host_device_{begin,end} pragmas.
Summary:
These cause us to consider all functions in-between to be __host__
__device__.

You can nest these pragmas; you just can't have more 'end's than
'begin's.

Reviewers: rsmith

Subscribers: tra, jhen, cfe-commits

Differential Revision: https://reviews.llvm.org/D24975

llvm-svn: 283677
2016-10-08 22:15:58 +00:00
Richard Smith c26d97401c [modules] Be sure to emit local specializations of imported templates, even if
the resulting specialization is not referenced by the rest of the AST. This
both avoids performing unnecessary reinstantiations in downstream users of the
AST file and fixes a bug (breaking modules self-host right now) where we would
sometimes fail to emit a definition of a class template specialization if we
imported just a declaration of it from elsewhere (see new testcase for reduced
example).

llvm-svn: 283489
2016-10-06 20:30:51 +00:00
Vassil Vassilev 916d8be252 Allocate after the early exit checks. NFC.
llvm-svn: 283448
2016-10-06 13:18:06 +00:00
Vassil Vassilev d1a88130c4 [modules] Allow VarDecls with initializers to use special var abbrev.
Update storage sizes to fit the (past) changes in the VarDecl's data model.
Update some comments.

Patch partially reviewed by Richard Smith as part of https://reviews.llvm.org/D24508

llvm-svn: 283444
2016-10-06 13:04:54 +00:00
Mehdi Amini 99d1b29503 Use StringRef for MemoryBuffer identifier API (NFC)
llvm-svn: 283043
2016-10-01 16:38:28 +00:00
Richard Smith 96269c59ea P0035R4: add std::align_val_t overloads of operator new/delete in C++17 mode.
llvm-svn: 282800
2016-09-29 22:49:46 +00:00
Aleksei Sidorin a693b37e14 [ASTImporter] Implement some expression-related AST node import (part 2)
* Some code cleanup
* Add tests not present in http://reviews.llvm.org/D14286
* Integrate a test suite from Serge Pavlov (http://reviews.llvm.org/D14224)
* ArrayTypeTraitExpr: serialize sub-expression to avoid keeping it undefined
* Implement import of some nodes:
  - ArrayTypeTraitExpr
  - ExpressionTraitExpr
  - OpaqueValueExpr
  - ArraySubscriptExpr
  - ExplicitCastExpr
  - ImplicitValueInitExpr
  - OffsetOfExpr
  - CXXThisExpr
  - CXXThrowExpr
  - CXXNoexceptExpr
  - CXXDefaultArgExpr
  - CXXScalarValueInitExpr
  - CXXBindTemporaryExpr
  - CXXTemporaryObjectExpr
  - MaterializeTemporaryExpr
  - ExprWithCleanups

  - StaticAssertDecl
  - FriendDecl

  - DecayedType

Differential Revision: https://reviews.llvm.org/D14326

llvm-svn: 282572
2016-09-28 10:16:56 +00:00
Alexander Shaposhnikov fbc4d68e71 Remove excessive padding from RedeclarableResult
This diff reorders the fields of the class RedeclarableResult 
to remove excessive padding.

Test plan: make -j8 check-clang

Differential revision: https://reviews.llvm.org/D24754

llvm-svn: 282322
2016-09-24 04:21:53 +00:00
Alexander Shaposhnikov 96cbe7b9a7 Remove excessive padding from ObjCCategoriesVisitor
This diff reorders the fields of ObjCCategoriesVisitor 
to remove excessive padding. 

Test plan: make -j8 check-clang

Differential revision: https://reviews.llvm.org/D24753

llvm-svn: 282318
2016-09-24 02:07:19 +00:00
Eric Liu 762b4887c2 Revert "[modules] When merging one definition into another, propagate the list of re-exporting modules from the discarded definition to the retained definition."
This reverts commit r281429.

llvm-svn: 281452
2016-09-14 10:05:10 +00:00
Richard Smith 1c16d1b576 [modules] When merging one definition into another, propagate the list of
re-exporting modules from the discarded definition to the retained definition.

llvm-svn: 281429
2016-09-14 01:05:35 +00:00
Manman Ren e6be26c8d4 ObjectiveC generics: Add ObjCTypeParamType in the type system.
We also need to add ObjCTypeParamTypeLoc. ObjCTypeParamType supports the
representation of "T <protocol>" where T is a type parameter. Before this,
we use TypedefType to represent the type parameter for ObjC.

ObjCTypeParamType has "ObjCTypeParamDecl *OTPDecl" and it extends from
ObjCProtocolQualifiers. It is a non-canonical type and is canonicalized
to the underlying type with the protocol qualifiers.

rdar://24619481
rdar://25060179

Differential Revision: http://reviews.llvm.org/D23079

llvm-svn: 281355
2016-09-13 17:25:08 +00:00
Richard Trieu ffa532d7a1 Fix interaction between serialization and c++1z feature.
In c++1z, static_assert is not required to have a StringLiteral message, where
previously it was required.  Update the AST Reader to be able to handle a
null StringLiteral.

llvm-svn: 281286
2016-09-13 01:20:40 +00:00
Richard Smith 6561f92b62 [modules] When we merge two definitions of a function, mark the retained
definition as visible in the discarded definition's module, as we do for
other kinds of definition.

llvm-svn: 281258
2016-09-12 21:06:40 +00:00
Manman Ren ec315f1002 Modules: for ObjectiveC try to keep the definition invariant.
When deserializing ObjCInterfaceDecl with definition data, if we already have
a definition, try to keep the definition invariant; also pull in the
categories even if it is not what getDefinition returns (this effectively
combines categories).

rdar://27926200
rdar://26708823

llvm-svn: 281119
2016-09-09 23:48:27 +00:00
Richard Smith 8df390f9eb C++ Modules TS: Add parsing and some semantic analysis support for
export-declarations. These don't yet have an effect on name visibility;
we still export everything by default.

llvm-svn: 280999
2016-09-08 23:14:54 +00:00
Eugene Zelenko e95e7d5d64 Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes.
Differential revision: https://reviews.llvm.org/D24115

llvm-svn: 280870
2016-09-07 21:53:17 +00:00
Yaxun Liu 43712e05ea Do not validate pch when -fno-validate-pch is set
There is a bug causing pch to be validated even though -fno-validate-pch is set. This patch fixes it.

ASTReader relies on ASTReaderListener to initialize SuggestedPredefines, which is required for compilations using PCH. Before this change, PCHValidator is the default ASTReaderListener. After this change, when -fno-validate-pch is set, PCHValidator is disabled, but we need a replacement ASTReaderListener to initialize SuggestedPredefines. Class SimpleASTReaderListener is implemented for this purpose.

This change only affects -fno-validate-pch. There is no functional change if -fno-validate-pch is not set.

If -fno-validate-pch is not set, conflicts in predefined macros between pch and current compiler instance causes error.

If -fno-validate-pch is set, predefine macros in current compiler override those in pch so that compilation can continue.

Differential Revision: https://reviews.llvm.org/D24054

llvm-svn: 280842
2016-09-07 18:40:20 +00:00
Richard Smith 3bd6d7fb78 Clean up handling of reading module files from stdin. Don't bother trying to
look for a corresponding file, since we're not going to read it anyway.

No observable behavior change (though we now avoid pointlessly trying to stat
or open a file named "-").

llvm-svn: 280436
2016-09-02 00:18:05 +00:00
Richard Smith 3b99db5566 Refactor to avoid holding a reference to a container element that could go away
during this function, and to avoid rolling back changes to the module manager's
data structures. Instead, we defer registering the module file until after we
have successfully finished loading it.

llvm-svn: 280434
2016-09-02 00:10:28 +00:00
Richard Smith 3fb1a8554d PR29166: when merging declarations with typedef names for linkage purposes,
don't assume that the anonymous struct will be part of the most recent
declaration of the typedef.

llvm-svn: 280136
2016-08-30 19:13:18 +00:00
Adrian Prantl b3b5a7362c Fix a bug preventing the cause for a module file-not-found from being displayed
llvm-svn: 280010
2016-08-29 20:46:59 +00:00
Adrian Prantl 9a06a882bc Fix a bug preventing the cause of a module-out-of-date error from being printed
llvm-svn: 280009
2016-08-29 20:46:56 +00:00
Richard Smith bbcc9f0462 C++ Modules TS: add frontend support for building pcm files from module
interface files. At the moment, all declarations (and no macros) are exported,
and 'export' declarations are not supported yet.

llvm-svn: 279794
2016-08-26 00:14:38 +00:00
Richard Smith bd97f35339 Refactor to remove the assumption that we know the name of the module we're emitting at the point when we create a PCHGenerator (with the C++ modules TS, we find that out part way through parsing the input).
llvm-svn: 279766
2016-08-25 18:26:30 +00:00
Richard Smith 0bae624934 Lazily load the ContextDecl for a lambda's DefinitionData, to fix a
deserialization cycle caused by the ContextDecl recursively importing members
of the lambda's closure type.

llvm-svn: 279694
2016-08-25 00:34:00 +00:00
Richard Smith 4b054b2665 PR29097: add an update record when we instantiate the default member
initializer of an imported field.

llvm-svn: 279667
2016-08-24 21:25:37 +00:00
Tim Shen f2187ed321 [GraphTraits] Replace all NodeType usage with NodeRef
This should finish the GraphTraits migration.

Differential Revision: http://reviews.llvm.org/D23730

llvm-svn: 279475
2016-08-22 21:09:30 +00:00
Manman Ren 11f2a47772 Module: add -fprebuilt-module-path to support loading prebuilt modules.
In this mode, there is no need to load any module map and the programmer can
simply use "@import" syntax to load the module directly from a prebuilt
module path. When loading from prebuilt module path, we don't support
rebuilding of the module files and we ignore compatible configuration
mismatches.

rdar://27290316
Differential Revision: http://reviews.llvm.org/D23125

llvm-svn: 279096
2016-08-18 17:42:15 +00:00
Diana Picus 8b44bbc077 Revert "[OpenMP] Sema and parsing for 'teams distribute simd’ pragma"
This reverts commit r279003 as it breaks some of our buildbots (e.g.
clang-cmake-aarch64-quick, clang-x86_64-linux-selfhost-modules).

The error is in OpenMP/teams_distribute_simd_ast_print.cpp:
clang: /home/buildslave/buildslave/clang-cmake-aarch64-quick/llvm/include/llvm/ADT/DenseMap.h:527:
bool llvm::DenseMapBase<DerivedT, KeyT, ValueT, KeyInfoT, BucketT>::LookupBucketFor(const LookupKeyT&, const BucketT*&) const
[with LookupKeyT = clang::Stmt*; DerivedT = llvm::DenseMap<clang::Stmt*, long unsigned int>;
      KeyT = clang::Stmt*; ValueT = long unsigned int;
      KeyInfoT = llvm::DenseMapInfo<clang::Stmt*>;
      BucketT = llvm::detail::DenseMapPair<clang::Stmt*, long unsigned int>]:
Assertion `!KeyInfoT::isEqual(Val, EmptyKey) && !KeyInfoT::isEqual(Val, TombstoneKey) &&
"Empty/Tombstone value shouldn't be inserted into map!"' failed.

llvm-svn: 279045
2016-08-18 09:25:07 +00:00
Kelvin Li 0e3bde8216 [OpenMP] Sema and parsing for 'teams distribute simd’ pragma
This patch is to implement sema and parsing for 'teams distribute simd’ pragma.

This patch is originated by Carlo Bertolli.

Differential Revision: https://reviews.llvm.org/D23528

llvm-svn: 279003
2016-08-17 23:13:03 +00:00
Tim Shen 2931d17142 [GraphWriter] Change GraphWriter to use NodeRef in GraphTraits
Summary: Corresponding LLVM patch: D23580

Reviewers: dblaikie

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D23581

llvm-svn: 278963
2016-08-17 20:02:38 +00:00
Richard Smith 7b76d81bdf P0217R3: serialization/deserialization support for c++17 decomposition declarations.
llvm-svn: 278460
2016-08-12 02:21:25 +00:00
Benjamin Kramer b6aadc1ca5 [ASTReader] Use real move semantics instead of emulating them in the copy ctor.
No functionality change intended.

llvm-svn: 277923
2016-08-06 12:45:16 +00:00
Benjamin Kramer a0a13c3649 Move helpers into anonymous namespaces. NFC.
llvm-svn: 277918
2016-08-06 11:21:04 +00:00
Kelvin Li 0253287633 [OpenMP] Sema and parsing for 'teams distribute' pragma
This patch is to implement sema and parsing for 'teams distribute' pragma.

Differential Revision: https://reviews.llvm.org/D23189

llvm-svn: 277818
2016-08-05 14:37:37 +00:00
Hubert Tong e4a0c0ec78 Reapply r276069 with workaround for MSVC 2013
llvm-svn: 277286
2016-07-30 22:33:34 +00:00
Samuel Antao 6890b09634 [OpenMP] Code generation for the is_device_ptr clause
Summary: This patch adds support for the is_device_ptr clause. It expands SEMA to use the mappable expression logic that can only be tested with code generation in place and check conflicts with other data sharing related clauses using the mappable expressions infrastructure.

Reviewers: hfinkel, carlo.bertolli, arpith-jacob, kkwli0, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: https://reviews.llvm.org/D22788

llvm-svn: 276978
2016-07-28 14:25:09 +00:00
Samuel Antao cc10b85789 [OpenMP] Codegen for use_device_ptr clause.
Summary: This patch adds support for the use_device_ptr clause. It includes changes in SEMA that could not be tested without codegen, namely, the use of the first private logic and mappable expressions support.

Reviewers: hfinkel, carlo.bertolli, arpith-jacob, kkwli0, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: https://reviews.llvm.org/D22691

llvm-svn: 276977
2016-07-28 14:23:26 +00:00
Manman Ren 47a4445687 Modules: add command line option fmodules-disable-diagnostic-validation
With PCH+Module, sometimes compiler gives a hard error:
Module file ‘<some-file path>.pcm' is out of date and needs to be rebuilt

This happens when we have a pch importing a module and the module gets
overwritten by another compiler instance after we build the pch (one example is
that both compiler instances hash to the same pcm file but use different
diagnostic options). When we try to load the pch later on, the compiler notices
that the imported module is out of date (modification date, size do not match)
but it can't handle this out of date pcm (i.e it does not know how to rebuild
the pch).

This commit introduces a new command line option so for PCH + module, we can
turn on this option and if two compiler instances only differ in diagnostic
options, the latter instance will not invalidate the original pcm.

rdar://26675801
Differential Revision: http://reviews.llvm.org/D22773

llvm-svn: 276769
2016-07-26 17:12:17 +00:00
Richard Smith bdb84f374c P0217R3: Parsing support and framework for AST representation of C++1z
decomposition declarations.

There are a couple of things in the wording that seem strange here:
decomposition declarations are permitted at namespace scope (which we partially
support here) and they are permitted as the declaration in a template (which we
reject).

llvm-svn: 276492
2016-07-22 23:36:59 +00:00
Vassil Vassilev 19765fb68c [modules] Teach the ASTWriter to ignore mutations coming from the ASTReader.
Processing update records (and loading a module, in general) might trigger
unexpected calls to the ASTWriter (being a mutation listener). Now we have a
mechanism to suppress those calls to the ASTWriter but notify other possible
mutation listeners.

Fixes https://llvm.org/bugs/show_bug.cgi?id=28332

Patch by Cristina Cristescu and me.

Reviewed by Richard Smith (D21800).

llvm-svn: 276473
2016-07-22 21:08:24 +00:00
Kelvin Li 986330c190 [OpenMP] Sema and parsing for 'target simd' pragma
This patch is to implement sema and parsing for 'target simd' pragma.

Differential Revision: https://reviews.llvm.org/D22479

llvm-svn: 276203
2016-07-20 22:57:10 +00:00
Richard Smith dc1f042171 [modules] Don't emit initializers for VarDecls within a module eagerly whenever
we first touch any part of that module. Instead, defer them until the first
time that module is (transitively) imported. The initializer step for a module
then recursively initializes modules that its own headers imported.

For example, this avoids running the <iostream> global initializer in programs
that don't actually use iostreams, but do use other parts of the standard
library.

llvm-svn: 276159
2016-07-20 19:10:16 +00:00
Hubert Tong 286547a337 Revert r276069: MSVC bots not happy
llvm-svn: 276074
2016-07-20 01:05:31 +00:00
Hubert Tong 24ee98e4a5 Concepts: Create space for requires-clause in TemplateParameterList; NFC
Summary:
Space for storing the //constraint-expression// of the
//requires-clause// associated with a `TemplateParameterList` is
arranged by taking a bit out of the `NumParams` field for the purpose
of determining whether there is a //requires-clause// or not, and by
adding to the trailing objects tied to the `TemplateParameterList`. An
accessor is provided.

An appropriate argument is supplied to `TemplateParameterList::Create`
at the various call sites.

Serialization changes will addressed as the Concepts implementation
becomes more solid.

Drive-by fix:
This change also replaces the custom
`FixedSizeTemplateParameterListStorage` implementation with one that
follows the interface provided by `llvm::TrailingObjects`.

Reviewers: aaron.ballman, faisalv, rsmith

Subscribers: cfe-commits, nwilson

Differential Revision: https://reviews.llvm.org/D19322

llvm-svn: 276069
2016-07-20 00:30:15 +00:00
Mehdi Amini 9670f847b8 [NFC] Header cleanup
Summary: Removed unused headers, replaced some headers with forward class declarations

Patch by: Eugene <claprix@yandex.ru>

Differential Revision: https://reviews.llvm.org/D20100

llvm-svn: 275882
2016-07-18 19:02:11 +00:00
Erik Pilkington 29099ded0c [ObjC] Implement @available in the Parser and AST
This patch adds a new AST node: ObjCAvailabilityCheckExpr, and teaches the
Parser and Sema to generate it. This node represents an availability check of
the form:

  @available(macos 10.10, *);

Which will eventually compile to a runtime check of the host's OS version. This
is the first patch of the feature I proposed here:
http://lists.llvm.org/pipermail/cfe-dev/2016-July/049851.html

Differential Revision: https://reviews.llvm.org/D22171

llvm-svn: 275654
2016-07-16 00:35:23 +00:00
Richard Smith 13fb860c78 Revert r275481, r275490. This broke modules bootstrap.
llvm-svn: 275624
2016-07-15 21:33:46 +00:00
Argyrios Kyrtzidis d798c05526 [AST] Keep track of the left brace source location of a tag decl.
This is useful for source modification tools. There will be a follow-up commit using it.

llvm-svn: 275590
2016-07-15 18:11:33 +00:00
Richard Smith 6c35b2dea4 [modules] Don't pass interesting decls to the consumer for a module file that's
passed on the command line but never actually used. We consider a (top-level)
module to be used if any part of it is imported, either by the current
translation unit, or by any part of a top-level module that is itself used.

(Put another way, a module is used if an implicit modules build would have
loaded its .pcm file.)

llvm-svn: 275481
2016-07-14 21:50:09 +00:00
Kelvin Li a579b9196c [OpenMP] Sema and parsing for 'target parallel for simd' pragma
This patch is to implement sema and parsing for 'target parallel for simd' pragma.

Differential Revision: http://reviews.llvm.org/D22096

llvm-svn: 275365
2016-07-14 02:54:56 +00:00
Richard Smith a547eb27fa P0305R0: Semantic analysis and code generation for C++17 init-statement for 'if' and 'switch':
if (stmt; condition) { ... }

Patch by Anton Bikineev! Some minor formatting and comment tweets by me.

llvm-svn: 275350
2016-07-14 00:11:03 +00:00
Argyrios Kyrtzidis 70ec1c7e62 [PCH/preamble] Make sure that if the preamble/PCH was serialized with errors that we set diagnostic engine state appropriately.
Otherwise there can be a crash with CFG analysis warnings doing work on invalid AST.

Fixes crash of rdar://26224134

llvm-svn: 275313
2016-07-13 20:35:26 +00:00
Carlo Bertolli 70594e9282 [OpenMP] Initial implementation of parse+sema for OpenMP clause 'is_device_ptr' of target
http://reviews.llvm.org/D22070

llvm-svn: 275282
2016-07-13 17:16:49 +00:00
Carlo Bertolli 2404b17192 [OpenMP] Initial implementation of parse+sema for clause use_device_ptr of 'target data'
http://reviews.llvm.org/D21904

This patch is similar to the implementation of 'private' clause: it adds a list of private pointers to be used within the target data region to store the device pointers returned by the runtime.
Please refer to the following document for a full description of what the runtime witll return in this case (page 10 and 11):
https://github.com/clang-omp/OffloadingDesign

I am happy to answer any question related to the runtime interface to help reviewing this patch.

llvm-svn: 275271
2016-07-13 15:37:16 +00:00
Pierre Gousseau 6b2fcef271 [PCH] Fix timestamp check on windows hosts.
On Linux, if the timestamp of a header file, included in the pch, is modified, then including the pch without regenerating it causes a fatal error, which is reasonable.
On Windows the check is ifdefed out, allowing the compilation to continue in a broken state.
The root of the broken state is that, if timestamps dont match, the preprocessor will reparse a header without discarding the pch data.
This leads to "#pragma once" header to be included twice.
The reason behind the ifdefing of the check lacks documentation, and was done 6 years ago.
This change tentatively removes the ifdefing.

First part of patch proposed at:

Differential Revision: http://reviews.llvm.org/D20867

llvm-svn: 275261
2016-07-13 11:58:28 +00:00
David Majnemer 6fbeee307e [AST] Use ArrayRef in more interfaces
ArrayRef is a little better than passing around a pointer/length
pair.

No functional change is intended.

llvm-svn: 274732
2016-07-07 04:43:07 +00:00
Kelvin Li 787f3fcc6b [OpenMP] Sema and parsing for 'distribute simd' pragma
Summary: This patch is an implementation of sema and parsing for the OpenMP composite pragma 'distribute simd'.

Differential Revision: http://reviews.llvm.org/D22007

llvm-svn: 274604
2016-07-06 04:45:38 +00:00
Kelvin Li 4a39add05e [OpenMP] Sema and parse for 'distribute parallel for simd'
Summary: This patch is an implementation of sema and parsing for the OpenMP composite pragma 'distribute parallel for simd'.

Differential Revision: http://reviews.llvm.org/D21977

llvm-svn: 274530
2016-07-05 05:00:15 +00:00
David Majnemer 8b62269391 [AST] Use ArrayRef in more interfaces
ArrayRef is a little better than passing around a pointer/length pair.

No functional change is intended.

llvm-svn: 274475
2016-07-03 21:17:51 +00:00
Eric Fiselier 6ad68551c3 [Feature] Add a builtin for indexing into parameter packs. Patch by Louis Dionne.
This patch adds a __nth_element builtin that allows fetching the n-th type of a
parameter pack with very little compile-time overhead. The patch was inspired by
r252036 and r252115 by David Majnemer, which add a similar __make_integer_seq
builtin for efficiently creating a std::integer_sequence.

Reviewed as D15421. http://reviews.llvm.org/D15421

llvm-svn: 274316
2016-07-01 01:24:09 +00:00
Richard Smith 5179eb7821 P0136R1, DR1573, DR1645, DR1715, DR1736, DR1903, DR1941, DR1959, DR1991:
Replace inheriting constructors implementation with new approach, voted into
C++ last year as a DR against C++11.

Instead of synthesizing a set of derived class constructors for each inherited
base class constructor, we make the constructors of the base class visible to
constructor lookup in the derived class, using the normal rules for
using-declarations.

For constructors, UsingShadowDecl now has a ConstructorUsingShadowDecl derived
class that tracks the requisite additional information. We create shadow
constructors (not found by name lookup) in the derived class to model the
actual initialization, and have a new expression node,
CXXInheritedCtorInitExpr, to model the initialization of a base class from such
a constructor. (This initialization is special because it performs real perfect
forwarding of arguments.)

In cases where argument forwarding is not possible (for inalloca calls,
variadic calls, and calls with callee parameter cleanup), the shadow inheriting
constructor is not emitted and instead we directly emit the initialization code
into the caller of the inherited constructor.

Note that this new model is not perfectly compatible with the old model in some
corner cases. In particular:
 * if B inherits a private constructor from A, and C uses that constructor to
   construct a B, then we previously required that A befriends B and B
   befriends C, but the new rules require A to befriend C directly, and
 * if a derived class has its own constructors (and so its implicit default
   constructor is suppressed), it may still inherit a default constructor from
   a base class

llvm-svn: 274049
2016-06-28 19:03:57 +00:00
Carlo Bertolli 9925f15661 Resubmission of http://reviews.llvm.org/D21564 after fixes.
[OpenMP] Initial implementation of parse and sema for composite pragma 'distribute parallel for'

This patch is an initial implementation for #distribute parallel for.
The main differences that affect other pragmas are:

The implementation of 'distribute parallel for' requires blocking of the associated loop, where blocks are "distributed" to different teams and iterations within each block are scheduled to parallel threads within each team. To implement blocking, sema creates two additional worksharing directive fields that are used to pass the team assigned block lower and upper bounds through the outlined function resulting from 'parallel'. In this way, scheduling for 'for' to threads can use those bounds.
As a consequence of blocking, the stride of 'distribute' is not 1 but it is equal to the blocking size. This is returned by the runtime and sema prepares a DistIncrExpr variable to hold that value.
As a consequence of blocking, the global upper bound (EnsureUpperBound) expression of the 'for' is not the original loop upper bound (e.g. in for(i = 0 ; i < N; i++) this is 'N') but it is the team-assigned block upper bound. Sema creates a new expression holding the calculation of the actual upper bound for 'for' as UB = min(UB, PrevUB), where UB is the loop upper bound, and PrevUB is the team-assigned block upper bound.

llvm-svn: 273884
2016-06-27 14:55:37 +00:00
Richard Smith 62f19e700d Implement C++17 P0386R2, inline variables. (The 'inline' specifier gives a
variable weak discardable linkage and partially-ordered initialization, and is
implied for constexpr static data members.)

llvm-svn: 273754
2016-06-25 00:15:56 +00:00
Carlo Bertolli b8503d5399 Revert r273705
[OpenMP] Initial implementation of parse and sema for composite pragma 'distribute parallel for'

llvm-svn: 273709
2016-06-24 19:20:02 +00:00
Carlo Bertolli e77d6e0e4d [OpenMP] Initial implementation of parse and sema for composite pragma 'distribute parallel for'
http://reviews.llvm.org/D21564

This patch is an initial implementation for #distribute parallel for.
The main differences that affect other pragmas are:

The implementation of 'distribute parallel for' requires blocking of the associated loop, where blocks are "distributed" to different teams and iterations within each block are scheduled to parallel threads within each team. To implement blocking, sema creates two additional worksharing directive fields that are used to pass the team assigned block lower and upper bounds through the outlined function resulting from 'parallel'. In this way, scheduling for 'for' to threads can use those bounds.
As a consequence of blocking, the stride of 'distribute' is not 1 but it is equal to the blocking size. This is returned by the runtime and sema prepares a DistIncrExpr variable to hold that value.
As a consequence of blocking, the global upper bound (EnsureUpperBound) expression of the 'for' is not the original loop upper bound (e.g. in for(i = 0 ; i < N; i++) this is 'N') but it is the team-assigned block upper bound. Sema creates a new expression holding the calculation of the actual upper bound for 'for' as UB = min(UB, PrevUB), where UB is the loop upper bound, and PrevUB is the team-assigned block upper bound.

llvm-svn: 273705
2016-06-24 18:53:35 +00:00
David Majnemer a3debed239 Use even more ArrayRefs
No functional change is intended, just a small refactoring.

llvm-svn: 273650
2016-06-24 05:33:44 +00:00
David Majnemer 59f7792136 Use more ArrayRefs
No functional change is intended, just a small refactoring.

llvm-svn: 273647
2016-06-24 04:05:48 +00:00
Richard Smith b130fe7d31 Implement p0292r2 (constexpr if), a likely C++1z feature.
llvm-svn: 273602
2016-06-23 19:16:49 +00:00
David Majnemer f7e3609f77 Use ranges to concisely express iteration
No functional change is intended, this should just clean things up a
little.

llvm-svn: 273522
2016-06-23 00:15:04 +00:00
Tim Shen 4a05bb8d8d Re-commit "[Temporary] Add an ExprWithCleanups for each C++ MaterializeTemporaryExpr."
Since D21243 fixes relative clang-tidy tests.

This reverts commit a71d9fbd41e99def9159af2b01ef6509394eaeed.

llvm-svn: 273312
2016-06-21 20:29:17 +00:00
Vassil Vassilev cc218abe34 [modules] Allow emission of update records for predefined __va_list_tag.
Handles the cases where old __va_list_tag is coming from a module and the new
is not, needing an update record.

Fixes https://llvm.org/bugs/show_bug.cgi?id=27890

Patch by Cristina Cristescu, Richard Smith and me.

llvm-svn: 273159
2016-06-20 15:10:40 +00:00
Alexey Bataev 61deb4dadc Revert accidential "[MSVC] Late parsing of in-class defined member functions in template"
This reverts commit 0253605771b8bd9d414aba74fe2742c730d6fd1a.

llvm-svn: 272776
2016-06-15 11:24:54 +00:00
Alexey Bataev 86e786bd17 [MSVC] Late parsing of in-class defined member functions in template
classes.

MSVC actively uses unqualified lookup in dependent bases, lookup at the
instantiation point (non-dependent names may be resolved on things
declared later) etc. and all this stuff is the main cause of
incompatibility between clang and MSVC.

Clang tries to emulate MSVC behavior but it may fail in many cases.
clang could store lexed tokens for member functions definitions within
ClassTemplateDecl for later parsing during template instantiation.

It will allow resolving many possible issues with lookup in dependent
base classes and removing many already existing MSVC-specific
hacks/workarounds from the clang code.

llvm-svn: 272774
2016-06-15 11:19:39 +00:00
Tim Shen 17b3deeff3 Revert "[Temporary] Add an ExprWithCleanups for each C++ MaterializeTemporaryExpr."
This reverts r272296, since there are clang-tidy failures that appear to
be caused by this change.

llvm-svn: 272310
2016-06-09 21:13:39 +00:00
Tim Shen f120a7b6a3 [Temporary] Add an ExprWithCleanups for each C++ MaterializeTemporaryExpr.
These ExprWithCleanups are added for holding a RunCleanupsScope not
for destructor calls; rather, they are for lifetime marks. This requires
ExprWithCleanups to keep a bit to indicate whether it have cleanups with
side effects (e.g. dtor calls).

Differential Revision: http://reviews.llvm.org/D20498

llvm-svn: 272296
2016-06-09 19:54:46 +00:00
Manman Ren 33d8029589 PCH + module: make sure we write out macros associated with builtin identifiers.
When we import a module that defines a builtin identifier from prefix header and
precompile the prefix header, the macro information related to the identifier
is lost.

If we don't precompile the prefix header, the source file can still see the
macro information. The reason is that we write out the identifier in the pch
but not the macro information since the macro is not defined locally.

This is related to r251565. In that commit, if we read a builtin identifier from
a module that wasn't "interesting" to that module, we will still write it out to
a PCH that imports that module.

The fix is to write exported module macros for PCH as well.

rdar://24666630

Differential Revision: http://reviews.llvm.org/D20383

llvm-svn: 271310
2016-05-31 18:19:32 +00:00
Samuel Antao ec172c6da0 [OpenMP] Parsing and sema support for the from clause
Summary:
The patch contains the parsing and sema support for the `from` clause. 

Patch based on the original post by Kelvin Li.

Reviewers: hfinkel, carlo.bertolli, kkwli0, arpith-jacob, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: http://reviews.llvm.org/D18488

llvm-svn: 270882
2016-05-26 17:49:04 +00:00
Samuel Antao 661c0904e1 [OpenMP] Parsing and sema support for the to clause
Summary:
The patch contains the parsing and sema support for the `to` clause. 

Patch based on the original post by Kelvin Li.

Reviewers: carlo.bertolli, hfinkel, kkwli0, arpith-jacob, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: http://reviews.llvm.org/D18597

llvm-svn: 270880
2016-05-26 17:39:58 +00:00
Samuel Antao 686c70c3dc [OpenMP] Parsing and sema support for target update directive
Summary:
This patch is to add parsing and sema support for `target update` directive. Support for the `to` and `from` clauses will be added by a different patch.  This patch also adds support for other clauses that are already implemented upstream and apply to `target update`, e.g. `device` and `if`.

This patch is based on the original post by Kelvin Li.

Reviewers: hfinkel, carlo.bertolli, kkwli0, arpith-jacob, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: http://reviews.llvm.org/D15944

llvm-svn: 270878
2016-05-26 17:30:50 +00:00
Alexey Bataev 8b42706a6e [OPENMP 4.5] Codegen for dacross loop synchronization constructs.
OpenMP 4.5 adds support for doacross loop synchronization. Patch
implements codegen for this construct.

llvm-svn: 270690
2016-05-25 12:36:08 +00:00
Richard Smith b648399f9f PR27754: CXXRecordDecl::data() needs to perform an update even if it's called
on a declaration that already knows the location of the DefinitionData object.

llvm-svn: 269858
2016-05-17 22:44:15 +00:00
Sean Callanan f3682a7014 Update identifiers as needed when loading macros from serialized ASTs.
This is essential for iterating across macros properly, which LLDB does when
loading macros from modules.  A naiver version of this patch (without the
conditional) caused assertion failures in the testsuite, but this version should
be safe.

Thanks to Ben Langmuir for the refinement that made this work.

llvm-svn: 269554
2016-05-14 06:24:14 +00:00
Richard Smith 12e7931d0b Add support for derived class special members hiding functions brought in from
a base class via a using-declaration. If a class has a using-declaration
declaring either a constructor or an assignment operator, eagerly declare its
special members in case they need to displace a shadow declaration from a
using-declaration.

llvm-svn: 269398
2016-05-13 06:47:56 +00:00
Dmitry Polukhin d69b505e3c [OpenMP] Parse+Sema for '#pragma omp declare target' syntax version 4.5
Support OpenMP version 4.5 syntax for #pragma omp declare target.

Syntax:
  #pragma omp declare target (extended-list) new-line
or
  #pragma omp declare target clause[ [,] clause ... ] new-line

Where clause is one of the following:
  to(extended-list)
  link(list)

Differential Revision: http://reviews.llvm.org/D20011

llvm-svn: 268925
2016-05-09 14:59:13 +00:00
Nemanja Ivanovic bb1ea2d613 Enable support for __float128 in Clang and enable it on pertinent platforms
This patch corresponds to reviews:
http://reviews.llvm.org/D15120
http://reviews.llvm.org/D19125

It adds support for the __float128 keyword, literals and target feature to
enable it. Based on the latter of the two aforementioned reviews, this feature
is enabled on Linux on i386/X86 as well as SystemZ.
This is also the second attempt in commiting this feature. The first attempt
did not enable it on required platforms which caused failures when compiling
type_traits with -std=gnu++11.

If you see failures with compiling this header on your platform after this
commit, it is likely that your platform needs to have this feature enabled.

llvm-svn: 268898
2016-05-09 08:52:33 +00:00
Richard Smith 1037909924 [modules] Attempt to improve performance for declaration merging without a Sema
object in C. Rather than using the DeclContext (which is very slow because it
triggers us to build a lookup table for the DeclContext), use a separate map
from identifiers to decls for this case, containing only the ones we've
actually deserialized. For convenience, this map is implemented as an
IdentifierResolver.

llvm-svn: 268817
2016-05-06 23:14:07 +00:00
Ben Langmuir 537c5b5b62 Fix CodeCompletion & TypoCorrection when combining a PCH with Modules
This commit fixes the IdentifierIterator to actually include identifiers
from a PCH or precompiled preamble when there is also a global module
index. This was causing code-completion (outside of C++) and
typo-correction to be missing global identifiers defined in the
PCH/preamble. Typo-correction has been broken since we first started
using the module index, whereas code-completion only started relying on
identifier iterator in r232793.

rdar://problem/25642879

llvm-svn: 268471
2016-05-04 00:53:13 +00:00
Manman Ren a0f31a01f3 Method Pool in modules: we make sure that if a module contains an entry for
a selector, the entry should be complete, containing everything introduced by
that module and all modules it imports.

Before writing out the method pool of a module, we sync up the out of date
selectors by pulling in methods for the selectors, from all modules it imports.

In ReadMethodPool, after pulling in the method pool entry for module A, this
lets us skip the modules that module A imports.

rdar://problem/25900131

llvm-svn: 268091
2016-04-29 19:04:05 +00:00
Vassil Vassilev 928c8254a9 Reland r267691 fixing PR27535.
llvm-svn: 267882
2016-04-28 14:13:28 +00:00