maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
211,323 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

9 Commits

Author SHA1 Message Date
Alexey Bataev 25e5b44654 [OPENMP] Emit __kmpc_cancel_barrier() and code for 'cancellation point' only 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
 2015-09-15 12:52:43 +00:00
Adrian Prantl bc068586ac Revert "Revert r241620 and follow-up commits" and move the initialization 
of the llvm targets from clang/CodeGen into ClangCheck.cpp and CIndex.cpp.

llvm-svn: 241653
 2015-07-08 01:00:30 +00:00
Adrian Prantl 142ec39739 Revert r241620 and follow-up commits while investigating linux buildbot failures. 
llvm-svn: 241642
 2015-07-07 23:19:46 +00:00
Adrian Prantl 726855a8da Update testcases that use precompiled headers to require a target after 
r241620.

llvm-svn: 241623
 2015-07-07 20:31:18 +00:00
Alexey Bataev 81c7ea0ec3 [OPENMP 4.0] Fixed codegen for 'cancellation point' construct. 
Generate the next code for 'cancellation point':
if (__kmpc_cancellationpoint()) {
  __kmpc_cancel_barrier();
  <exit construct>;
}

llvm-svn: 241336
 2015-07-03 09:56:58 +00:00
Alexey Bataev db39021cee [OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492) 
-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
 2015-05-20 04:24:19 +00:00
Alexey Bataev 6f1ffc069b [OPENMP] Refactoring of codegen for OpenMP directives. 
Refactored API of OpenMPRuntime for compatibility with combined directives.
Differential Revision: http://reviews.llvm.org/D8859

llvm-svn: 234564
 2015-04-10 04:50:10 +00:00
Alexey Bataev f268568447 [OPENMP] Improved codegen for implicit/explicit 'barrier' constructs. 
Replace boolean IsExplicit parameter of OpenMPRuntime::emitBarrierCall() method by OpenMPDirectiveKind Kind for better compatibility with the runtime library. Also add processing of 'nowait' clause on worksharing directives.
Differential Revision: http://reviews.llvm.org/D8659

llvm-svn: 233511
 2015-03-30 04:30:22 +00:00
Alexey Bataev 2df54a07bf [OPENMP] Initial codegen for 'omp sections' and 'omp section' directives. 
If only one section is found in the sections region, it is emitted just like single region.
Otherwise it is emitted as a static non-chunked loop.

#pragma omp sections
{
#pragma omp section
  {1}
  ...
  #pragma omp section
  {n}
}
is translated to something like

i32 <iter_var>
i32 <last_iter> = 0
i32 <lower_bound> = 0
i32 <upper_bound> = n-1
i32 <stride> = 1
call void @__kmpc_for_static_init_4(<loc>, i32 <gtid>, i32 34/*static non-chunked*/, i32* <last_iter>, i32* <lower_bound>, i32* <upper_bound>, i32* <stride>, i32 1/*increment always 1*/, i32 1/*chunk always 1*/)
<upper_bound> = min(<upper_bound>, n-1)
<iter_var> = <lb>
check:
br <iter_var> <= <upper_bound>, label cont, label exit
continue:
switch (IV) {
  case 0:
  {1};
  break;
  ...
  case <NumSection> - 1:
  {n};
  break;
  }
  ++<iter_var>
  br label check
  exit:
  call void @__kmpc_for_static_fini(<loc>, i32 <gtid>)
Differential Revision: http://reviews.llvm.org/D8244

llvm-svn: 232021
 2015-03-12 08:53:29 +00:00