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* Allow static local variables specified on data-sharing attribute clauses.Kelvin Li2015-09-151-20/+72
| | | | | | http://reviews.llvm.org/D11619 llvm-svn: 247715
* [OPENMP] Emit __kmpc_cancel_barrier() and code for 'cancellation point' only ↵Alexey Bataev2015-09-151-8/+8
| | | | | | | | | | | | | | if 'cancel' is found. Patch improves codegen for OpenMP constructs. If the OpenMP region does not have internal 'cancel' construct, a call to 'void __kmpc_barrier()' runtime function is generated for all implicit/explicit barriers. If the region has inner 'cancel' directive, then ``` if (__kmpc_cancel_barrier()) exit from outer construct; ``` code is generated. Also, the code for 'canellation point' directive is not generated if parent directive does not have 'cancel' directive. llvm-svn: 247681
* [OPENMP] Outlined function for parallel and other regions with list of ↵Alexey Bataev2015-09-101-28/+15
| | | | | | | | | captured variables. Currently all variables used in OpenMP regions are captured into a record and passed to outlined functions in this record. It may result in some poor performance because of too complex analysis later in optimization passes. Patch makes to emit outlined functions for parallel-based regions with a list of captured variables. It reduces code for 2*n GEPs, stores and loads at least. Codegen for task-based regions remains unchanged because runtime requires that all captured variables are passed in captured record. llvm-svn: 247251
* [OPENMP] Drop type qualifiers from private variables.Alexey Bataev2015-07-141-4/+4
| | | | | | If the variable is marked as private in OpenMP construct, the reference to this variable should not keep type qualifiers for the original variable. Private copy is not volatile or constant, so we can use unqualified type for private copy. llvm-svn: 242133
* Revert "Revert r241620 and follow-up commits" and move the initializationAdrian Prantl2015-07-081-0/+1
| | | | | | of the llvm targets from clang/CodeGen into ClangCheck.cpp and CIndex.cpp. llvm-svn: 241653
* Revert r241620 and follow-up commits while investigating linux buildbot ↵Adrian Prantl2015-07-071-1/+0
| | | | | | failures. llvm-svn: 241642
* Add target requirements to testcases that emit PCH.Adrian Prantl2015-07-071-0/+1
| | | | llvm-svn: 241630
* [OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)Alexey Bataev2015-05-201-5/+5
| | | | | | | -fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified). Differential Revision: http://reviews.llvm.org/D9736 llvm-svn: 237769
* [OPENMP] Codegen for 'lastprivate' clause in 'sections' directive.Alexey Bataev2015-04-271-0/+332
#pragma omp sections lastprivate(<var>) <BODY>; This construct is translated into something like: <last_iter> = alloca i32 <init for lastprivates>; <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) { <final copy for lastprivate>; Update original variable with the lastprivate value. } call __kmpc_cancel_barrier() ; an implicit barrier to avoid possible data race. If there is only one section, there is no special code generation, original shared variables are used + barrier is emitted at the end of the directive. Differential Revision: http://reviews.llvm.org/D9240 llvm-svn: 235834
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