Commit Graph

422 Commits

Author SHA1 Message Date
Stephen Kelly f2ceec4811 Port getLocStart -> getBeginLoc
Reviewers: teemperor!

Subscribers: jholewinski, whisperity, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D50350

llvm-svn: 339385
2018-08-09 21:08:08 +00:00
Stephen Kelly a6e4358f07 Port getStartLoc -> getBeginLoc
Reviewers: teemperor!

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D50349

llvm-svn: 339384
2018-08-09 21:05:56 +00:00
Fangrui Song 6907ce2f8f Remove trailing space
sed -Ei 's/[[:space:]]+$//' include/**/*.{def,h,td} lib/**/*.{cpp,h}

llvm-svn: 338291
2018-07-30 19:24:48 +00:00
Roman Lebedev 12216f1d4a [AST] Sink 'part of explicit cast' down into ImplicitCastExpr
Summary:
As discussed in IRC with @rsmith, it is slightly not good to keep that in the `CastExpr` itself:
Given the explicit cast, which is represented in AST as an `ExplicitCastExpr` + `ImplicitCastExpr`'s,
only the  `ImplicitCastExpr`'s will be marked as `PartOfExplicitCast`, but not the `ExplicitCastExpr` itself.
Thus, it is only ever `true` for `ImplicitCastExpr`'s, so we don't need to write/read/dump it for `ExplicitCastExpr`'s.

We don't need to worry that we write the `PartOfExplicitCast` in PCH after `CastExpr::path_iterator`,
since the `ExprImplicitCastAbbrev` is only used when the `NumBaseSpecs == 0`, i.e. there is no 'path'.

Reviewers: rsmith, rjmccall, erichkeane, aaron.ballman

Reviewed By: rsmith, erichkeane

Subscribers: vsk, cfe-commits, rsmith

Tags: #clang

Differential Revision: https://reviews.llvm.org/D49838

llvm-svn: 338108
2018-07-27 07:27:14 +00:00
Roman Lebedev d55661db3c [Sema] Mark implicitly-inserted ICE's as being part of explicit cast (PR38166)
Summary:
As discussed in [[ https://bugs.llvm.org/show_bug.cgi?id=38166 | PR38166 ]], we need to be able to distinqush whether the cast
we are visiting is actually a cast, or part of an `ExplicitCast`.
There are at least four ways to get there:
1. Introduce a new `CastKind`, and use it instead of `IntegralCast` if we are in `ExplicitCast`.

   Would work, but does not scale - what if we will need more of these cast kinds?
2. Introduce a flag in `CastExprBits`, whether this cast is part of `ExplicitCast` or not.

   Would work, but it isn't immediately clear where it needs to be set.
2. Fix `ScalarExprEmitter::VisitCastExpr()` to visit these `NoOp` casts.

   As pointed out by @rsmith, CodeGenFunction::EmitMaterializeTemporaryExpr calls

   skipRValueSubobjectAdjustments, which steps over the CK_NoOp cast`,

   which explains why we currently don't visit those.

   This is probably impossible, as @efriedma points out, that is intentional as per `[class.temporary]` in the standard
3. And the simplest one, just record which NoOp casts we skip.

   It just kinda works as-is afterwards.

But, the approach with a flag is the least intrusive one, and is probably the best one overall.

Reviewers: rsmith, rjmccall, majnemer, efriedma

Reviewed By: rsmith

Subscribers: cfe-commits, aaron.ballman, vsk, llvm-commits, rsmith

Differential Revision: https://reviews.llvm.org/D49508

llvm-svn: 337815
2018-07-24 08:16:50 +00:00
Leonard Chan db01c3adc6 [Fixed Point Arithmetic] Fixed Point Precision Bits and Fixed Point Literals
This diff includes the logic for setting the precision bits for each primary fixed point type in the target info and logic for initializing a fixed point literal.

Fixed point literals are declared using the suffixes

```
hr: short _Fract
uhr: unsigned short _Fract
r: _Fract
ur: unsigned _Fract
lr: long _Fract
ulr: unsigned long _Fract
hk: short _Accum
uhk: unsigned short _Accum
k: _Accum
uk: unsigned _Accum
```
Errors are also thrown for illegal literal values

```
unsigned short _Accum u_short_accum = 256.0uhk;   // expected-error{{the integral part of this literal is too large for this unsigned _Accum type}}
```

Differential Revision: https://reviews.llvm.org/D46915

llvm-svn: 335148
2018-06-20 17:19:40 +00:00
Adrian Prantl 9fc8faf9e6 Remove \brief commands from doxygen comments.
This is similar to the LLVM change https://reviews.llvm.org/D46290.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46320

llvm-svn: 331834
2018-05-09 01:00:01 +00:00
Malcolm Parsons fab3680990 Clean carriage returns from lib/ and include/. NFC.
Summary:
Clean carriage returns from lib/ and include/. NFC.
(I have to make this change locally in order for `git diff` to show sane output after I edit a file, so I might as well ask for it to be committed. I don't have commit privs myself.)
(Without this patch, `git rebase`ing any change involving SemaDeclCXX.cpp is a real nightmare. :( So while I have no right to ask for this to be committed, geez would it make my workflow easier if it were.)

Here's the command I used to reformat things. (Requires bash and OSX/FreeBSD sed.)

    git grep -l $'\r' lib include | xargs sed -i -e $'s/\r//'
    find lib include -name '*-e' -delete

Reviewers: malcolm.parsons

Reviewed By: malcolm.parsons

Subscribers: emaste, krytarowski, cfe-commits

Differential Revision: https://reviews.llvm.org/D45591

Patch by Arthur O'Dwyer.

llvm-svn: 330112
2018-04-16 08:31:08 +00:00
Akira Hatanaka 797afe3a4e [CodeGen] Ignore OpaqueValueExprs that are unique references to their
source expressions when iterating over a PseudoObjectExpr's semantic
subexpression list.

Previously the loop in emitPseudoObjectExpr would emit the IR for each
OpaqueValueExpr that was in a PseudoObjectExpr's semantic-form
expression list and use the result when the OpaqueValueExpr later
appeared in other expressions. This caused an assertion failure when
AggExprEmitter tried to copy the result of an OpaqueValueExpr and the
copied type didn't have trivial copy/move constructors or assignment
operators.

This patch adds flag IsUnique to OpaqueValueExpr which indicates it is a
unique reference to its source expression (it is not used in multiple
places). The loop in emitPseudoObjectExpr ignores OpaqueValueExprs that
are unique and CodeGen visitors simply traverse the source expressions
of such OpaqueValueExprs.

rdar://problem/34363596

Differential Revision: https://reviews.llvm.org/D39562

llvm-svn: 327939
2018-03-20 01:47:58 +00:00
Aaron Ballman a503855906 Track in the AST whether the operand to a UnaryOperator can overflow and then use that logic when evaluating constant expressions and emitting codegen.
llvm-svn: 322074
2018-01-09 13:07:03 +00:00
Alexey Bataev 16e798873e [OPENMP] Add support for cancel constructs in `target teams distribute
parallel for`.

Add support for cancel/cancellation point directives inside `target
teams distribute parallel for` directives.

llvm-svn: 318881
2017-11-22 21:12:03 +00:00
Alexey Bataev dcb4b8fbc1 [OPENMP] Add support for cancel constructs in [teams] distribute
parallel for directives.

Added codegen/sema support for cancel constructs in [teams] distribute
parallel for directives.

llvm-svn: 318872
2017-11-22 20:19:50 +00:00
Alexey Bataev 931e19bf51 [OPENMP] Capture argument of `device` clause for target-based
directives.

The argument of the `device` clause in target-based executable
directives must be captured to support codegen for the `target`
directives with the `depend` clauses.

llvm-svn: 314686
2017-10-02 16:32:39 +00:00
Alexey Bataev 88202be1f0 [OPENMP] Codegen for 'in_reduction' clause.
Added codegen for task-based directive with in_reduction clause.
```
<body>
```
The next code is emitted:
```
void *td;
...
td = call i8* @__kmpc_task_reduction_init();
...
<type> *priv = (<type> *)call i8* @__kmpc_task_reduction_get_th_data(i32
GTID, i8* td, i8* <orig>)
```

llvm-svn: 309270
2017-07-27 13:20:36 +00:00
Gor Nishanov f5ecb5e1b4 [coroutines] Add serialization/deserialization of coroutines
Reviewers: rsmith

Reviewed By: rsmith

Subscribers: EricWF, cfe-commits

Differential Revision: https://reviews.llvm.org/D35383

llvm-svn: 308996
2017-07-25 18:01:49 +00:00
Alexey Bataev 3b1b8951b9 [OPENMP] Codegen for 'task_reduction' clause.
Added codegen for taskgroup directive with task_reduction clause.
```
<body>
```
The next code is emitted:
```
%struct.kmp_task_red_input_t red_init[n];
void *td;
call void @__kmpc_taskgroup(%ident_t id, i32 gtid)
...
red_init[i].shar = &<item>;
red_init[i].size = sizeof(<item>);
red_init[i].init = (void*)initializer_function;
red_init[i].fini = (void*)destructor_function;
red_init[i].comb = (void*)combiner_function;
red_init[i].flags = flags;
...
td = call i8* @__kmpc_task_reduction_init(i32 gtid, i32 n, i8*
(void*)red_init);
call void @__kmpc_end_taskgroup(%ident_t id, i32 gtid)

void initializer_function(i8* priv) {
  *(<type>*)priv = <red_init>;
  ret void;
}

void destructor_function(i8* priv) {
  (<type>*)priv->~();
  ret void;
}

void combiner_function(i8* inout, i8* in) {
  *(<type>*)inout = *(<type>*)inout <red_id> *(<type>*)in;
  ret void;
}
```

llvm-svn: 308979
2017-07-25 15:53:26 +00:00
Alexey Bataev fa312f33f8 [OPENMP] Initial support for 'in_reduction' clause.
Parsing/sema analysis for 'in_reduction' clause for task-based
directives.

llvm-svn: 308768
2017-07-21 18:48:21 +00:00
Alexey Bataev 169d96a203 [OPENMP] Initial support for 'task_reduction' clause.
Parsing/sema analysis of the 'task_reduction' clause.

llvm-svn: 308352
2017-07-18 20:17:46 +00:00
Carlo Bertolli ffafe10fac [OpenMP] Prepare sema to support combined constructs with omp distribute and omp for
https://reviews.llvm.org/D32237

This patch prepares sema with additional fields to support all those composite and combined constructs of OpenMP that include pragma 'distribute' and 'for', such as 'distribute parallel for'. It also extends the regression tests for 'distribute parallel for' and adds a new one.

llvm-svn: 300802
2017-04-20 00:39:39 +00:00
Adam Nemet 484aa45153 Encapsulate FPOptions and use it consistently
Sema holds the current FPOptions which is adjusted by 'pragma STDC
FP_CONTRACT'.  This then gets propagated into expression nodes as they are
built.

This encapsulates FPOptions so that this propagation happens opaquely rather
than directly with the fp_contractable on/off bit.  This allows controlled
transitioning of fp_contractable to a ternary value (off, on, fast).  It will
also allow adding more fast-math flags later.

This is toward moving fp-contraction=fast from an LLVM TargetOption to a
FastMathFlag in order to fix PR25721.

Differential Revision: https://reviews.llvm.org/D31166

llvm-svn: 298877
2017-03-27 19:17:25 +00:00
Eric Fiselier 20f25cb6df [coroutines] Add DependentCoawaitExpr and fix re-building CoroutineBodyStmt.
Summary:
The changes contained in this patch are:

1. Defines a new AST node `CoawaitDependentExpr` for representing co_await expressions while the promise type is still dependent.
2. Correctly detect and transform the 'co_await' operand to  `p.await_transform(<expr>)`  when possible.
3. Change the initial/final suspend points to build during the initial parse, so they have the correct operator co_await lookup results.
4.  Fix transformation of the CoroutineBodyStmt so that it doesn't re-build the final/initial suspends.


@rsmith: This change is a little big, but it's not trivial for me to split it up. Please let me know if you would prefer this submitted as multiple patches.



Reviewers: rsmith, GorNishanov

Reviewed By: rsmith

Subscribers: ABataev, rsmith, mehdi_amini, cfe-commits

Differential Revision: https://reviews.llvm.org/D26057

llvm-svn: 297093
2017-03-06 23:38:15 +00:00
Carlo Bertolli 8429d81202 [OpenMP] Prepare Sema for initial implementation for pragma 'distribute parallel for'
https://reviews.llvm.org/D29922

This patch adds two fields for use in the implementation of 'distribute parallel for':

The increment expression for the distribute loop. As the chunk assigned to a team is executed by multiple threads within the 'parallel for' region, the increment expression has to correspond to the value returned by the related runtime call (for_static_init).
The upper bound of the innermost loop ('for' in 'distribute parallel for') is not the globalUB expression normally used for pragma 'for' when found in isolation. It is instead the upper bound of the chunk assigned to the team ('distribute' loop). In this way, we prevent teams from executing chunks assigned to other teams.
The use of these two fields can be see in a related explanatory patch:
https://reviews.llvm.org/D29508

llvm-svn: 295497
2017-02-17 21:29:13 +00:00
Arpith Chacko Jacob 7ecc0b7f3d [OpenMP] Support for thread_limit-clause on the 'target teams' directive.
The thread_limit-clause on the combined directive applies to the
'teams' region of this construct. We modify the ThreadLimitClause
class to capture the clause expression within the 'target' region.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D29087

llvm-svn: 293049
2017-01-25 11:44:35 +00:00
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
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
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
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
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
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
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
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
Kelvin Li 4e325f77a9 Re-apply patch r279045.
llvm-svn: 285066
2016-10-25 12:50:55 +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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Samuel Antao 9092700683 [OpenMP] Improve mappable expressions Sema.
Summary:
This patch adds logic to save the components of mappable expressions in the clause that uses it, so that they don't have to be recomputed during codegen. Given that the mappable components are (will be) used in several clauses a new geneneric implementation `OMPMappableExprListClause` is used that extends the existing `OMPVarListClause`.

This patch does not add new tests. The goal is to preserve the existing functionality while storing more info in the clauses.

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

Subscribers: cfe-commits, caomhin

Differential Revision: http://reviews.llvm.org/D19382

llvm-svn: 267560
2016-04-26 14:54:23 +00:00
Richard Smith b41ddae3a2 Fix order-of-evaluation bug (causing GCC buildbots to fail).
llvm-svn: 265598
2016-04-06 20:57:53 +00:00
Richard Smith f50422aa44 Minor simplifications.
llvm-svn: 265594
2016-04-06 20:12:34 +00:00
Richard Smith 290d801916 Re-commit r265518 ("[modules] Continue factoring encoding of AST records out of
ASTWriter."), reverted in r265526, with a fix for an iterator invalidation bug
(thanks, MSan!).

llvm-svn: 265564
2016-04-06 17:06:00 +00:00
Dmitry Polukhin 790b540099 Revert "[modules] Continue factoring encoding of AST records out of ASTWriter."
This reverts commit r265518.

llvm-svn: 265526
2016-04-06 10:01:46 +00:00
Richard Smith 5811c40bb3 [modules] Continue factoring encoding of AST records out of ASTWriter.
llvm-svn: 265518
2016-04-06 06:26:08 +00:00
Richard Smith 69c82bfae7 [modules] Start moving the code for encoding AST records out of ASTWriter into
a separate class. The goal is for this class to have a separate lifetime from
the AST writer so that it can meaningfully track pending statement nodes and
context for more compact encoding of various types.

llvm-svn: 265195
2016-04-01 22:52:03 +00:00
Alexey Bataev 5a3af13d93 [OPENMP] Remove extra code transformation.
For better support of some specific GNU extensions some extra
transformation of AST nodes were introduced. These transformations are
very hard to handle. The code is improved in handling of these
extensions by using captured expressions construct.

llvm-svn: 264709
2016-03-29 08:58:54 +00:00
David Majnemer 2041b46b76 Fix serialization/deserialization for __uuidof
I broke this back in r264529 because I forgot to serialize the UuidAttr
member.  Fix this by replacing the UuidAttr with a StringRef which is
properly serialized and deserialized.

llvm-svn: 264562
2016-03-28 03:19:50 +00:00
Richard Smith 01694c340d P0184R0: Allow types of 'begin' and 'end' expressions in range-based for loops to differ.
llvm-svn: 263895
2016-03-20 10:33:40 +00:00
Alexey Bataev 78849fb464 [OPENMP 4.5] Codegen for data members in 'linear' clause.
OpenMP 4.5 allows to use data members in private clauses. Patch adds
codegen support for 'linear' clause.

llvm-svn: 263002
2016-03-09 09:49:00 +00:00
Carlo Bertolli fc35ad2bbc Reapply r262741 [OPENMP] Codegen for distribute directive
This patch provide basic implementation of codegen for teams directive, excluding all clauses except dist_schedule. It also fixes parts of AST reader/writer to enable correct pre-compiled header handling.

http://reviews.llvm.org/D17170

llvm-svn: 262832
2016-03-07 16:04:49 +00:00
Samuel Antao bf4d18d3d2 Revert r262741 - [OPENMP] Codegen for distribute directive
Was causing a failure in one of the buildbot slaves.

llvm-svn: 262744
2016-03-04 21:02:14 +00:00
Carlo Bertolli 4a56e3831d [OPENMP] Codegen for distribute directive
This patch provide basic implementation of codegen for teams directive, excluding all clauses except dist_schedule. It also fixes parts of AST reader/writer to enable correct pre-compiled header handling.

http://reviews.llvm.org/D17170

llvm-svn: 262741
2016-03-04 20:24:58 +00:00
Alexey Bataev 37e594c799 [OPENMP] Simplify handling of clauses with postupdates, NFC.
Clauses with post-update expressions always have pre-init statement. So
OMPClauseWithPreInit now is the base for OMPClauseWithPostUpdate.

llvm-svn: 262696
2016-03-04 07:21:16 +00:00
Alexey Bataev 61205070c4 [OPENMP 4.5] Codegen for data members in 'reduction' clause.
OpenMP 4.5 allows to privatize non-static data members of current class
in non-static member functions. Patch supports codegen for non-static
data members in 'reduction' clauses.

llvm-svn: 262460
2016-03-02 04:57:40 +00:00
Alexey Bataev 005248ac8a [OPENMP 4.5] Codegen for member decls in 'lastprivate' clause.
OpenMP 4.5 allows to privatize non-static member decls in non-static
member functions. Patch captures such decls by reference in general (for
bitfields, by value) and then operates with this capture. For bitfields,
at the end of codegen for lastprivates original bitfield is updated with the value of captured copy.

llvm-svn: 261824
2016-02-25 05:25:57 +00:00
Alexey Bataev 417089fc7e [OPENMP 4.5] Codegen support for data members in 'firstprivate' clause.
Added codegen for captured data members in non-static member functions.

llvm-svn: 261089
2016-02-17 13:19:37 +00:00
Alexey Bataev 3392d76081 [OPENMP] Improved handling of pseudo-captured expressions in OpenMP.
Expressions inside 'schedule'|'dist_schedule' clause must be captured in
combined directives to avoid possible crash during codegen. Patch
improves handling of such constructs

llvm-svn: 260954
2016-02-16 11:18:12 +00:00
Arpith Chacko Jacob 05bebb578a [OpenMP] Parsing + sema for target parallel for directive.
Summary:
This patch adds parsing + sema for the target parallel for directive along with testcases.

Reviewers: ABataev

Differential Revision: http://reviews.llvm.org/D16759

llvm-svn: 259654
2016-02-03 15:46:42 +00:00
Davide Italiano 04839a59f2 assert(false) -> llvm_unreachable().
llvm-svn: 259302
2016-01-30 08:03:54 +00:00
Arpith Chacko Jacob e955b3d3fe [OpenMP] Parsing + sema for target parallel directive.
Summary:
This patch adds parsing + sema for the target parallel directive and its clauses along with testcases.

Reviewers: ABataev

Differential Revision: http://reviews.llvm.org/D16553

Rebased to current trunk and updated test cases.

llvm-svn: 258832
2016-01-26 18:48:41 +00:00
Arpith Chacko Jacob 3cf89040b0 [OpenMP] Parsing + sema for defaultmap clause.
Summary:
This patch adds parsing + sema for the defaultmap clause associated with the target directive (among others).

Reviewers: ABataev

Differential Revision: http://reviews.llvm.org/D16527

llvm-svn: 258817
2016-01-26 16:37:23 +00:00
Samuel Antao 7259076032 [OpenMP] Parsing + sema for "target exit data" directive.
Patch by Arpith Jacob. Thanks!

llvm-svn: 258177
2016-01-19 20:04:50 +00:00
Samuel Antao df67fc468e [OpenMP] Parsing + sema for "target enter data" directive.
Patch by Arpith Jacob. Thanks!

llvm-svn: 258165
2016-01-19 19:15:56 +00:00
Carlo Bertolli b4adf55e0f Add OpenMP dist_schedule clause to distribute directive and related regression tests.
llvm-svn: 257917
2016-01-15 18:50:31 +00:00
John McCall 32791cc3e1 Only instantiate a default argument once.
By storing the instantiated expression back in the ParmVarDecl,
we remove the last need for separately storing the sub-expression
of a CXXDefaultArgExpr.  This makes PCH/Modules merging quite
simple: CXXDefaultArgExpr records are serialized as references
to the ParmVarDecl, and we ignore redundant attempts to overwrite
the instantiated expression.

This has some extremely marginal impact on user-facing semantics.
However, the major effect is that it avoids IRGen errors about
conflicting definitions due to lambdas in the argument being
instantiated multiple times while sharing the same mangling.
It should also slightly improve memory usage and module file size.

rdar://23810407

llvm-svn: 256983
2016-01-06 22:34:54 +00:00
James Y Knight 7281c357b1 [TrailingObjects] Convert OffsetOfExpr.
That necessitated moving the OffsetOfNode class out of OffsetOfExpr.

llvm-svn: 256590
2015-12-29 22:31:18 +00:00
James Y Knight e7d82283cd [TrailingObjects] Convert AST classes that had a ASTTemplateKWAndArgsInfo.
So, also:

- Moved the TemplateArgumentLoc array out of the
  ASTTemplateKWAndArgsInfo class (making it a simple fixed-size object),
  to avoid needing to have a variable-length object as part of a
  variable-length object. Now the objects that have a
  ASTTemplateKWAndArgsInfo also have some TemplateArgumentLoc objects
  appended directly.

- Removed some internal-use accessors which became simply a wrapper on
  getTrailingObjects.

- Moved MemberNameQualifier out of the MemberExpr class, renamed it
  MemberExprNameQualifier, because the template can't
  refer to a class nested within the class it's defining.

llvm-svn: 256570
2015-12-29 18:15:14 +00:00
Alexey Bataev 6402bcad71 [OPENMP 4.5] Sema/parsing support for extended format of 'schedule' clause.
OpenMP 4.0-3.1 supports the next format of ‘schedule’ clause: schedule(kind[, chunk_size])
Where kind can be one of ‘static’, ‘dynamic’, ‘guided’, ‘auto’ or ‘runtime’.
OpenMP 4.5 defines the format: schedule([modifier [, modifier]:]kind[, chunk_size])
Modifier can be one of ‘monotonic’, ‘nonmonotonic’ or ‘simd’.

llvm-svn: 256487
2015-12-28 07:25:51 +00:00
James Y Knight 04ec5bfad8 [TrailingObjects] Convert ASTTemplateKWAndArgsInfo and ASTTemplateArgumentListInfo.
Doing so required separating them so that the former doesn't inherit
from the latter anymore. Investigating that, it became clear that the
inheritance wasn't actually providing real value in any case.

So also:
- Remove a bunch of redundant functions (getExplicitTemplateArgs,
  getOptionalExplicitTemplateArgs) on various Expr subclasses which
  depended on the inheritance relationship.
- Switched external callers to use pre-existing accessors that return the
  data they're actually interested in (getTemplateArgs,
  getNumTemplateArgs, etc).
- Switched internal callers to use pre-existing getTemplateKWAndArgsInfo.

llvm-svn: 256359
2015-12-24 02:59:37 +00:00
Alexey Bataev 28c75417b2 [OPENMP 4.5] Parsing/sema for 'hint' clause of 'critical' directive.
OpenMP 4.5 adds 'hint' clause to critical directive. Patch adds parsing/semantic analysis for this clause.

llvm-svn: 255625
2015-12-15 08:19:24 +00:00