Regression

LLVM.DebugInfo/X86.earlydup-crash.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 0.76 sec.

Stacktrace

Script:
--
: 'RUN: at line 1';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/DebugInfo/X86/earlydup-crash.ll -mtriple=i386-apple-macosx10.6.7 -o /dev/null
--
Exit Code: 134

Command Output (stderr):
--
/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/include/llvm/CodeGen/ReachingDefAnalysis.h:47:43: runtime error: left shift of negative value -3
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/include/llvm/CodeGen/ReachingDefAnalysis.h:47:43 in 
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
Stack dump:
0.	Program arguments: /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/DebugInfo/X86/earlydup-crash.ll -mtriple=i386-apple-macosx10.6.7 -o /dev/null 
1.	Running pass 'Function Pass Manager' on module '/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/DebugInfo/X86/earlydup-crash.ll'.
2.	Running pass 'ReachingDefAnalysis' on function '@framework_construct_pathname'
/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/DebugInfo/X86/Output/earlydup-crash.ll.script: line 1: 69031 Abort trap: 6           /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/DebugInfo/X86/earlydup-crash.ll -mtriple=i386-apple-macosx10.6.7 -o /dev/null

--