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* [OPENMP 4.1] Initial support for 'simdlen' clause.Alexey Bataev2015-08-211-0/+8
| | | | | | Add parsing/sema analysis for 'simdlen' clause in simd directives. Also add check that if both 'safelen' and 'simdlen' clauses are specified, the value of 'simdlen' parameter is less than the value of 'safelen' parameter. llvm-svn: 245692
* [OPENMP 4.1] Initial support for modifiers in 'linear' clause.Alexey Bataev2015-08-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | OpenMP 4.1 adds 3 optional modifiers to 'linear' clause. Format of 'linear' clause has changed to: ``` linear(linear-list[ : linear-step]) ``` where linear-list is one of the following ``` list modifier(list) ``` where modifier is one of the following: ``` ref (C++) val (C/C++) uval (C++) ``` Patch adds parsing and sema analysis for these modifiers. llvm-svn: 245550
* [OPENMP 4.1] Allow variables with reference types in private clauses.Alexey Bataev2015-08-181-0/+4
| | | | | | OpenMP 4.1 allows to use variables with reference types in all private clauses (private, firstprivate, lastprivate, linear etc.). Patch allows to use such variables and fixes codegen for linear variables with reference types. llvm-svn: 245268
* [OPENMP] Fix for http://llvm.org/PR24371: Assert failure compiling blender 2.75.Alexey Bataev2015-08-141-0/+4
| | | | | | | blender uses statements expression in condition of the loop under control of the '#pragma omp parallel for'. This condition is used several times in different expressions required for codegen of the loop directive. If there are some variables defined in statement expression, it fires an assert during codegen because of redefinition of the same variables. We have to rebuild several expression to be sure that all variables are unique. llvm-svn: 245041
* This patch commits OpenMP 4 target device clausesMichael Wong2015-08-071-0/+8
| | | | | | | This is committed on behalf of Kelvin Li http://reviews.llvm.org/D11469?id=31227 llvm-svn: 244325
* [OPENMP 4.1] Allow references in init expression for loop-based constructs.Alexey Bataev2015-08-061-0/+4
| | | | | | OpenMP 4.1 allows to use variables with reference types in private clauses and, therefore, in init expressions of the cannonical loop forms. llvm-svn: 244209
* [OPENMP 4.1] Initial support for extended 'ordered' clause.Alexey Bataev2015-07-301-1/+4
| | | | | | | | OpenMP 4.1 introduces optional argument '(n)' for 'ordered' clause, where 'n' is a number of loops that immediately follow the directive. 'n' must be constant positive integer expressions and it must be less or equal than the number of the loops in the resulting loop nest. Patch adds parsing and semantic analysis for this optional argument. llvm-svn: 243635
* Commit for http://reviews.llvm.org/D10765Michael Wong2015-07-211-0/+11
| | | | | | | for OpenMP 4 target data directive parsing and sema. This commit is on behalf of Kelvin Li. llvm-svn: 242785
* [OPENMP 4.0] Initial support for 'omp cancel' construct.Alexey Bataev2015-07-021-0/+10
| | | | | | Implemented parsing/sema analysis + (de)serialization. llvm-svn: 241253
* [OPENMP 4.0] Initial support for 'omp cancellation point' construct.Alexey Bataev2015-07-011-0/+11
| | | | | | Add parsing and sema analysis for 'omp cancellation point' directive. llvm-svn: 241145
* [OPENMP] Initial support for 'depend' clause (4.0).Alexey Bataev2015-06-231-0/+16
| | | | | | Parsing and sema analysis (without support for array sections in arguments) for 'depend' clause (used in 'task' directive, OpenMP 4.0). llvm-svn: 240409
* Revert r240270 ("Fixed/added namespace ending comments using clang-tidy").Alexander Kornienko2015-06-221-2/+2
| | | | llvm-svn: 240353
* Fixed/added namespace ending comments using clang-tidy. NFCAlexander Kornienko2015-06-221-2/+2
| | | | | | | | | | | | The patch is generated using this command: $ tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \ -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \ work/llvm/tools/clang To reduce churn, not touching namespaces spanning less than 10 lines. llvm-svn: 240270
* [OPENMP] Support for '#pragma omp taskgroup' directive.Alexey Bataev2015-06-181-0/+9
| | | | | | | | | | | | | Added parsing, sema analysis and codegen for '#pragma omp taskgroup' directive (OpenMP 4.0). The code for directive is generated the following way: #pragma omp taskgroup <body> void __kmpc_taskgroup(<loc>, thread_id); <body> void __kmpc_end_taskgroup(<loc>, thread_id); llvm-svn: 240011
* [OPENMP] Remove last iteration separation for loop-based constructs.Alexey Bataev2015-06-161-3/+1
| | | | | | Previously the last iteration for simd loop-based OpenMP constructs were generated as a separate code. This feature is not required and codegen is simplified. llvm-svn: 239810
* Implementing C99 partial re-initialization behavior (DR-253)Yunzhong Gao2015-06-101-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | Based on previous discussion on the mailing list, clang currently lacks support for C99 partial re-initialization behavior: Reference: http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-April/029188.html Reference: http://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_253.htm This patch attempts to fix this problem. Given the following code snippet, struct P1 { char x[6]; }; struct LP1 { struct P1 p1; }; struct LP1 l = { .p1 = { "foo" }, .p1.x[2] = 'x' }; // this example is adapted from the example for "struct fred x[]" in DR-253; // currently clang produces in l: { "\0\0x" }, // whereas gcc 4.8 produces { "fox" }; // with this fix, clang will also produce: { "fox" }; Differential Review: http://reviews.llvm.org/D5789 llvm-svn: 239446
* [OPENMP] Fixed support for 'schedule' clause with non-constant chunk size.Alexey Bataev2015-05-121-0/+1
| | | | | | 'schedule' clause for combined directives requires additional processing. Special helper variable is generated, that is captured in the outlined parallel region for 'parallel for' region. This captured variable is used to store chunk expression from the 'schedule' clause in this 'parallel for' region. llvm-svn: 237100
* Fix a few line endings. NFC.Yunzhong Gao2015-05-011-12/+12
| | | | llvm-svn: 236301
* [OPENMP] Codegen for 'copyin' clause in 'parallel' directive.Alexey Bataev2015-04-161-4/+16
| | | | | | | | | | | | | | | Emits the following code for the clause at the beginning of the outlined function for implicit threads: if (<not a master thread>) { ... <thread local copy of var> = <master thread local copy of var>; ... } <sync point>; Checking for a non-master thread is performed by comparing of the address of the thread local variable with the address of the master's variable. Master thread always uses original variables, so you always know the address of the variable in the master thread. Differential Revision: http://reviews.llvm.org/D9026 llvm-svn: 235075
* [OPENMP] Codegen for 'lastprivate' clause in 'for' directive.Alexey Bataev2015-04-161-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | #pragma omp for lastprivate(<var>) for (i = a; i < b; ++b) <BODY>; This construct is translated into something like: <last_iter> = alloca i32 <lastprivate_var> = alloca <type> <last_iter> = 0 ; No initializer for simple variables or a default constructor is called for objects. ; For arrays perform element by element initialization by the call of the default constructor. ... OMP_FOR_START(...,<last_iter>, ..); sets <last_iter> to 1 if this is the last iteration. <BODY> ... OMP_FOR_END if (<last_iter> != 0) { <var> = <lastprivate_var> ; Update original variable with the lastprivate value. } call __kmpc_cancel_barrier() ; an implicit barrier to avoid possible data race. Differential Revision: http://reviews.llvm.org/D8658 llvm-svn: 235074
* [OPENMP] Codegen for 'reduction' clause in 'parallel' directive.Alexey Bataev2015-04-101-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Emit a code for reduction clause. Next code should be emitted for reductions: static kmp_critical_name lock = { 0 }; void reduce_func(void *lhs[<n>], void *rhs[<n>]) { ... *(Type<i> *)lhs[i] = RedOp<i>(*(Type<i> *)lhs[i], *(Type<i> *)rhs[i]); ... } ... void *RedList[<n>] = {&<RHSExprs>[0], ..., &<RHSExprs>[<n> - 1]}; switch (__kmpc_reduce{_nowait}(<loc>, <gtid>, <n>, sizeof(RedList), RedList, reduce_func, &<lock>)) { case 1: ... <LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]); ... __kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>); break; case 2: ... Atomic(<LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i])); ... break; default: ; } Reduction variables are a kind of a private variables, they have private copies, but initial values are chosen in accordance with the reduction operation. Differential Revision: http://reviews.llvm.org/D8915 llvm-svn: 234583
* [OPENMP] Sema analysis for 'atomic capture' construct.Alexey Bataev2015-04-011-0/+1
| | | | | | Added sema checks for forms of expressions/statements allowed under control of 'atomic capture' directive + generation of helper objects for future codegen. llvm-svn: 233785
* [OPENMP] Codegen for 'atomic update' construct.Alexey Bataev2015-03-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds atomic update codegen for the following forms of expressions: x binop= expr; x++; ++x; x--; --x; x = x binop expr; x = expr binop x; If x and expr are integer and binop is associative or x is a LHS in a RHS of the assignment expression, and atomics are allowed for type of x on the target platform atomicrmw instruction is emitted. Otherwise compare-and-swap sequence is emitted: bb: ... atomic load <x> cont: <expected> = phi [ <x>, label %bb ], [ <new_failed>, %cont ] <desired> = <expected> binop <expr> <res> = cmpxchg atomic &<x>, desired, expected <new_failed> = <res>.field1; br <res>field2, label %exit, label %cont exit: ... Differential Revision: http://reviews.llvm.org/D8536 llvm-svn: 233513
* Track the source location of the dot or arrow operator in a MemberExpr.Aaron Ballman2015-03-241-11/+12
| | | | | | Patch by Joe Ranieri! llvm-svn: 233085
* [OPENMP] Codegen for 'copyprivate' clause ('single' directive).Alexey Bataev2015-03-231-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If there is at least one 'copyprivate' clause is associated with the single directive, the following code is generated: ``` i32 did_it = 0; \\ for 'copyprivate' clause if(__kmpc_single(ident_t *, gtid)) { SingleOpGen(); __kmpc_end_single(ident_t *, gtid); did_it = 1; \\ for 'copyprivate' clause } <copyprivate_list>[0] = &var0; ... <copyprivate_list>[n] = &varn; call __kmpc_copyprivate(ident_t *, gtid, <copyprivate_list_size>, <copyprivate_list>, <copy_func>, did_it); ... void<copy_func>(void *LHSArg, void *RHSArg) { Dst = (void * [n])(LHSArg); Src = (void * [n])(RHSArg); Dst[0] = Src[0]; ... Dst[n] = Src[n]; } ``` All list items from all 'copyprivate' clauses are gathered into single <copyprivate list> (<copyprivate_list_size> is a size in bytes of this list) and <copy_func> is used to propagate values of private or threadprivate variables from the 'single' region to other implicit threads from outer 'parallel' region. Differential Revision: http://reviews.llvm.org/D8410 llvm-svn: 232932
* [OPENMP] CodeGen of the 'linear' clause for the 'omp simd' directive.Alexander Musman2015-03-211-0/+13
| | | | | | | | | The linear variable is privatized (similar to 'private') and its value on current iteration is calculated, similar to the loop counter variables. Differential revision: http://reviews.llvm.org/D8375 llvm-svn: 232890
* Remove many superfluous SmallString::str() calls.Yaron Keren2015-03-181-1/+1
| | | | | | | | | | | | | | | Now that SmallString is a first-class citizen, most SmallString::str() calls are not required. This patch removes a whole bunch of them, yet there are lots more. There are two use cases where str() is really needed: 1) To use one of StringRef member functions which is not available in SmallString. 2) To convert to std::string, as StringRef implicitly converts while SmallString do not. We may wish to change this, but it may introduce ambiguity. llvm-svn: 232622
* [OPENMP] Additional sema analysis for 'omp atomic[ update]'.Alexey Bataev2015-03-131-0/+2
| | | | | | Adds additional semantic analysis + generation of helper expressions for proper codegen. llvm-svn: 232164
* Rename RefersToCapturedVariable to RefersToEnclosingVariableOrCapture, NFCAlexey Bataev2015-01-121-1/+1
| | | | llvm-svn: 225624
* Renamed RefersToEnclosingLocal bitfield to RefersToCapturedVariable.Alexey Bataev2014-12-161-1/+1
| | | | | | | Bitfield RefersToEnclosingLocal of Stmt::DeclRefExprBitfields renamed to RefersToCapturedVariable to reflect latest changes introduced in commit 224323. Also renamed method Expr::refersToEnclosingLocal() to Expr::refersToCapturedVariable() and comments for constant arguments. No functional changes. llvm-svn: 224329
* First patch with codegen of the 'omp for' directive. It implementsAlexander Musman2014-12-151-0/+9
| | | | | | | | | | | | | | | the simplest case, which is used when no chunk_size is specified in the schedule(static) or no 'schedule' clause is specified - the iteration space is divided by the library into chunks that are approximately equal in size, and at most one chunk is distributed to each thread. In this case, we do not need an outer loop in each thread - each thread requests once which iterations range it should handle (using __kmpc_for_static_init runtime call) and then runs the inner loop on this range. Differential Revision: http://reviews.llvm.org/D5865 llvm-svn: 224233
* [OPENMP] Additional processing of 'omp atomic read' directive.Alexey Bataev2014-11-181-0/+3
| | | | | | According to OpenMP standard, Section 2.12.6, atomic Construct, '#pragma omp atomic read' is allowed to be used only for expression statements of form 'v = x;', where x and v (as applicable) are both l-value expressions with scalar type. Patch adds checks for it. llvm-svn: 222231
* [c++1z] N4295: fold-expressions.Richard Smith2014-11-081-1/+15
| | | | | | | | | | | | | | | | This is a new form of expression of the form: (expr op ... op expr) where one of the exprs is a parameter pack. It expands into (expr1 op (expr2onwards op ... op expr)) (and likewise if the pack is on the right). The non-pack operand can be omitted; in that case, an empty pack gives a fallback value or an error, depending on the operator. llvm-svn: 221573
* Remove CastKind typedef from CastExpr since CastKind is in the clang namespace.Craig Topper2014-10-311-1/+1
| | | | llvm-svn: 220955
* Objective-C. revert patch for rdar://17554063.Fariborz Jahanian2014-10-281-2/+0
| | | | llvm-svn: 220812
* Add the initial TypoExpr AST node for delayed typo correction.Kaelyn Takata2014-10-271-0/+4
| | | | llvm-svn: 220692
* Removing the setLBracLoc and setRBracLoc functions from CompoundStmt -- ↵Aaron Ballman2014-10-221-2/+2
| | | | | | their only use was with the AST reader, and friendship can be used to handle that. Drive-by rename of "Brac" to "Brace" for the private data members. NFC. llvm-svn: 220428
* [OPENMP] Codegen for 'private' clause in 'parallel' directive.Alexey Bataev2014-10-211-0/+4
| | | | | | | This patch generates some helper variables which used as a private copies of the corresponding original variables inside an OpenMP 'parallel' directive. These generated variables are initialized by default (with the default constructor, if any). In outlined function references to original variables are replaced by the references to these private helper variables. At the end of the initialization of the private variables and implicit barier is set by calling __kmpc_barrier(...) runtime function to be sure that all threads were initialized using original values of the variables. Differential Revision: http://reviews.llvm.org/D4752 llvm-svn: 220262
* Fix deserialization of PredefinedExpr in dependent context.Alexey Bataev2014-10-111-1/+1
| | | | llvm-svn: 219561
* Fix for bug http://llvm.org/PR17427.Alexey Bataev2014-10-091-1/+2
| | | | | | | | Assertion failed: "Computed __func__ length differs from type!" Reworked PredefinedExpr representation with internal StringLiteral field for function declaration. Differential Revision: http://reviews.llvm.org/D5365 llvm-svn: 219393
* [OPENMP] 'omp teams' directive basic support.Alexey Bataev2014-10-091-0/+12
| | | | | | Includes parsing and semantic analysis for 'omp teams' directive support from OpenMP 4.0. Adds additional analysis to 'omp target' directive with 'omp teams' directive. llvm-svn: 219385
* [OPENMP] Codegen for 'firstprivate' clause.Alexey Bataev2014-10-081-0/+8
| | | | | | | | This patch generates some helper variables that used as private copies of the corresponding original variables inside an OpenMP 'parallel' directive. These generated variables are initialized by copy using values of the original variables (with the copy constructor, if any). For arrays, initializator is generated for single element and in the codegen procedure this initial value is automatically propagated between all elements of the private copy. In outlined function, references to original variables are replaced by the references to these private helper variables. At the end of the initialization of the private variables an implicit barier is generated by calling __kmpc_barrier(...) runtime function to be sure that all threads were initialized using original values of the variables. Differential Revision: http://reviews.llvm.org/D5140 llvm-svn: 219306
* Revert commit r219297.Alexey Bataev2014-10-081-8/+0
| | | | | | Still troubles with OpenMP/parallel_firstprivate_codegen.cpp (now in ARM buildbots). llvm-svn: 219298
* [OPENMP] Codegen for 'firstprivate' clause.Alexey Bataev2014-10-081-0/+8
| | | | | | | | This patch generates some helper variables that used as private copies of the corresponding original variables inside an OpenMP 'parallel' directive. These generated variables are initialized by copy using values of the original variables (with the copy constructor, if any). For arrays, initializator is generated for single element and in the codegen procedure this initial value is automatically propagated between all elements of the private copy. In outlined function, references to original variables are replaced by the references to these private helper variables. At the end of the initialization of the private variables an implicit barier is generated by calling __kmpc_barrier(...) runtime function to be sure that all threads were initialized using original values of the variables. Differential Revision: http://reviews.llvm.org/D5140 llvm-svn: 219297
* Revert back r219295.Alexey Bataev2014-10-081-8/+0
| | | | | | To fix issues with test OpenMP/parallel_firstprivate_codegen.cpp llvm-svn: 219296
* [OPENMP] Codegen for 'firstprivate' clause.Alexey Bataev2014-10-081-0/+8
| | | | | | | | This patch generates some helper variables that used as private copies of the corresponding original variables inside an OpenMP 'parallel' directive. These generated variables are initialized by copy using values of the original variables (with the copy constructor, if any). For arrays, initializator is generated for single element and in the codegen procedure this initial value is automatically propagated between all elements of the private copy. In outlined function, references to original variables are replaced by the references to these private helper variables. At the end of the initialization of the private variables an implicit barier is generated by calling __kmpc_barrier(...) runtime function to be sure that all threads were initialized using original values of the variables. Differential Revision: http://reviews.llvm.org/D5140 llvm-svn: 219295
* Revert "[OPENMP] 'omp teams' directive basic support. Includes parsing and ↵Renato Golin2014-10-081-12/+0
| | | | | | | | | semantic analysis for 'omp teams' directive support from OpenMP 4.0. Adds additional analysis to 'omp target' directive with 'omp teams' directive." This reverts commit r219197 because it broke ARM self-hosting buildbots with segmentation fault errors in many tests. llvm-svn: 219289
* [OPENMP] 'omp teams' directive basic support.Alexey Bataev2014-10-071-0/+12
| | | | | | Includes parsing and semantic analysis for 'omp teams' directive support from OpenMP 4.0. Adds additional analysis to 'omp target' directive with 'omp teams' directive. llvm-svn: 219197
* [OPENMP] Loop collapsing and codegen for 'omp simd' directive.Alexander Musman2014-10-011-0/+23
| | | | | | | | | | | | | This patch implements collapsing of the loops (in particular, in presense of clause 'collapse'). It calculates number of iterations N and expressions nesessary to calculate the nested loops counters values based on new iteration variable (that goes from 0 to N-1) in Sema. It also adds Codegen for 'omp simd', which uses (and tests) this feature. Differential Revision: http://reviews.llvm.org/D5184 llvm-svn: 218743
* [OPENMP] Parsing/Sema of directive omp parallel for simdAlexander Musman2014-09-231-0/+13
| | | | llvm-svn: 218299
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