[llvm-bugs] [Bug 25820] New: orph_test_omp_parallel_copyin from OpenMP3.1 Validation test suite segfaults when built with current 3.8svn

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=25820

            Bug ID: 25820
           Summary: orph_test_omp_parallel_copyin from OpenMP3.1
                    Validation test suite segfaults when built with
                    current 3.8svn
           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

The orph_test_omp_parallel_copyin test case from the OpenMP3.1 Validation test
suite segfaults when built with current 3.8svn compiler on
x86_64-apple-darwin15.

Jacks-Mac-Pro:c howarth$ clang-3.8 -fopenmp -O0 -g
orph_test_omp_parallel_copyin.c -o orph_test_omp_parallel_copyin
Jacks-Mac-Pro:c howarth$ lldb ./orph_test_omp_parallel_copyin
(lldb) target create "./orph_test_omp_parallel_copyin"
Current executable set to './orph_test_omp_parallel_copyin' (x86_64).
(lldb) r
Process 38235 launched: './orph_test_omp_parallel_copyin' (x86_64)
######## OpenMP Validation Suite V 3.0a ######
## Repetitions:  20                       ####
## Loop Count :   1000                    ####
##############################################
Testing omp parallel copyin

Process 38235 stopped
* thread #1: tid = 0x17a2d4, 0x00007fff9ae780a5
libsystem_c.dylib`flockfile + 4, queue = 'com.apple.main-thread', stop
reason = EXC_BAD_ACCESS (code=1, address=0x68)
    frame #0: 0x00007fff9ae780a5 libsystem_c.dylib`flockfile + 4
libsystem_c.dylib`flockfile:
->  0x7fff9ae780a5 <+4>:  movq   0x68(%rdi), %rdi
    0x7fff9ae780a9 <+8>:  addq   $0x8, %rdi
    0x7fff9ae780ad <+12>: popq   %rbp
    0x7fff9ae780ae <+13>: jmp    0x7fff9aec1452            ; symbol
stub for: pthread_mutex_lock

This is the only regression observed in the ctest run of that test suite. The
issue occurs at all optimization levels.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20151214/37122345/attachment-0001.html>