tree 5a99cbc5f70d09267d188a0a942124ca95abaf23
parent 9891f562e1ace51d484ca69b0a592e5632564ef3
author Michael Kruse <llvm@meinersbur.de> 1552965501 +0000
committer Michael Kruse <llvm@meinersbur.de> 1552965501 +0000

[CodeGen] LLVM OpenMP Backend.

The ParallelLoopGenerator class is changed such that GNU OpenMP specific
code was removed, allowing to use it as super class in a
template-pattern. Therefore, the code has been reorganized and one may
not use the ParallelLoopGenerator directly anymore, instead specific
implementations have to be provided. These implementations contain the
library-specific code. As such, the "GOMP" (code completely taken from
the existing backend) and "KMP" variant were created.

For "check-polly" all tests that involved "GOMP": equivalents were added
that test the new functionalities, like static scheduling and different
chunk sizes. "docs/UsingPollyWithClang.rst" shows how the alternative
backend may be used.

Patch by Michael Halkenhäuser <michaelhalk@web.de>

Differential Revision: https://reviews.llvm.org/D59100

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@356434 91177308-0d34-0410-b5e6-96231b3b80d8