[llvm-bugs] [Bug 26368] New: ctest_omp_taskyield directive tests from OpenMP3.1_Validation randomly verification tests

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26368

            Bug ID: 26368
           Summary: ctest_omp_taskyield directive tests from
                    OpenMP3.1_Validation randomly verification tests
           Product: OpenMP
           Version: unspecified
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: Clang Compiler Support
          Assignee: unassignedclangbugs at nondot.org
          Reporter: howarth.mailing.lists at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

On x86_64 darwin, the OpenMP3.1_Validation tests for the ctest_omp_taskyield
directive randomly fail as seen by the results...

#Tested Directive               t       ct      ot      oct
omp_taskyield                   100     100     10      -

The failures can be reproduced by compiling the preprocessed source files with
the compile_testcase shell script and then executing the resulting executable
with the run_testcase shell script. This should produce output like...

######## OpenMP Validation Suite V 3.0a ######
## Repetitions:  20                       ####
## Loop Count :   1000                    ####
##############################################
Testing omp taskyield

Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Error: Test failed.
Directive failed the test 18 times out of 20.
2 test(s) were successful
Result: 90

Note that the compile_testcase assumes the compiler is named clang-3.8.

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