cmpxchg Error

[JaredCrean2]

I built sys-plus.bc according to the instructions in the blog post, but when I ran llvm-cbe on it, I got the following error:

jared@jared-r15:~/static_compile/test4$ ~/build/llvm/build/Debug+Asserts/bin/llvm-cbe sys-plus.bc -o sys-plus.cbe.c
C Writer does not know about   %rs.i = cmpxchg i64* %23, i64 0, i64 1 acq_rel acquire, !dbg !760649UNREACHABLE executed at /home/jared/build/llvm/projects/llvm-cbe/lib/Target/CBackend/CBackend.h:242!
0  llvm-cbe        0x00000000023b9459 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 59
1  llvm-cbe        0x00000000023b97b1
2  llvm-cbe        0x00000000023b8144
3  libpthread.so.0 0x00007f764f216390
4  libc.so.6       0x00007f764e3cc428 gsignal + 56
5  libc.so.6       0x00007f764e3ce02a abort + 362
6  llvm-cbe        0x000000000239d3a0
7  llvm-cbe        0x0000000000c4eda4
8  llvm-cbe        0x0000000000c75add
9  llvm-cbe        0x0000000000c708c1
10 llvm-cbe        0x0000000000c6b24d
11 llvm-cbe        0x0000000000c69649
12 llvm-cbe        0x0000000000c555c5
13 llvm-cbe        0x0000000000c556a8
14 llvm-cbe        0x0000000000c557c2
15 llvm-cbe        0x0000000000c665c3
16 llvm-cbe        0x0000000000c70c9d
17 llvm-cbe        0x0000000000c6b4b1
18 llvm-cbe        0x0000000000c69649
19 llvm-cbe        0x0000000000c555c5
20 llvm-cbe        0x0000000000c556a8
21 llvm-cbe        0x0000000000c557c2
22 llvm-cbe        0x0000000000c5f394
23 llvm-cbe        0x0000000000c70473
24 llvm-cbe        0x0000000000c6af95
25 llvm-cbe        0x0000000000c5e752
26 llvm-cbe        0x0000000000c5e40d
27 llvm-cbe        0x0000000000c5e29b
28 llvm-cbe        0x0000000000c4f59e
29 llvm-cbe        0x00000000022ee21e llvm::FPPassManager::runOnFunction(llvm::Function&) + 330
30 llvm-cbe        0x00000000022ee3a1 llvm::FPPassManager::runOnModule(llvm::Module&) + 133
31 llvm-cbe        0x00000000022ee6da
32 llvm-cbe        0x00000000022eed92 llvm::legacy::PassManagerImpl::run(llvm::Module&) + 264
33 llvm-cbe        0x00000000022eef97 llvm::legacy::PassManager::run(llvm::Module&) + 39
34 llvm-cbe        0x0000000000c366ec
35 llvm-cbe        0x0000000000c35858 main + 276
36 libc.so.6       0x00007f764e3b7830 __libc_start_main + 240
37 llvm-cbe        0x0000000000c33309 _start + 41
Stack dump:
0.	Program arguments: /home/jared/build/llvm/build/Debug+Asserts/bin/llvm-cbe sys-plus.bc -o sys-plus.cbe.c 
1.	Running pass 'Function Pass Manager' on module 'sys-plus.bc'.
2.	Running pass 'C backend' on function '@julia_lock_4088'
Aborted (core dumped)

This used LLVM 3.7.1, built according to the readme from this repo. I successfully ran the selectionsort example, so I think llvm-cbe was built correctly.
Julia versioninfo (branch jn/release-0.5-fix-compile-all):

Julia Version 0.5.1-pre+32
Commit 64b4df2* (2016-12-12 19:49 UTC)
Platform Info:
  System: Linux (x86_64-linux-gnu)
  CPU: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.7.1 (ORCJIT, broadwell)

[dmikushin]

Same error here, any luck fixing?