This patch properly marks the support level for libomp test when testing with
GCC.
Some new OpenMP features were only introduced with GCC 11.
Tests using the target construct are incompatibe with GCC.
Tests pass now with GCC 10, 11, 12
This patch adds a new runtime function `fork_call_if` and uses that
to lower parallel if statements when going through OpenMPIRBuilder.
This fixes an issue where the OpenMPIRBuilder passes all arguments to
fork_call as a struct but this struct is not filled corretly in the
non-if branch by handling the fork inside the runtime.
Differential Revision: https://reviews.llvm.org/D138495
This change introduces a check-libomp target which is based upon llvm's lit
test infrastructure. Each test (generated from the University of Houston's
OpenMP testsuite) is compiled and then run. For each test, an exit status of 0
indicates success and non-zero indicates failure. This way, FileCheck is not
needed. I've added a bit of logic to generate symlinks (libiomp5 and libgomp)
in the build tree so that gcc can be tested as well. When building out-of-
tree builds, the user will have to provide llvm-lit either by specifying
-DLIBOMP_LLVM_LIT_EXECUTABLE or having llvm-lit in their PATH.
Differential Revision: http://reviews.llvm.org/D11821
llvm-svn: 248211
