Regression

LLVM.CodeGen/ARM.2013-05-31-char-shift-crash.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 0.43 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/CodeGen/ARM/2013-05-31-char-shift-crash.ll -O0 -mtriple=armv4t--linux-eabi-android
: 'RUN: at line 2';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/ARM/2013-05-31-char-shift-crash.ll -O0 -mtriple=armv4t-unknown-linux
: 'RUN: at line 3';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/ARM/2013-05-31-char-shift-crash.ll -O0 -mtriple=armv5-unknown-linux
--
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 -1
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 -O0 -mtriple=armv4t--linux-eabi-android 
1.	Running pass 'Function Pass Manager' on module '<stdin>'.
2.	Running pass 'ReachingDefAnalysis' on function '@f2'
/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/CodeGen/ARM/Output/2013-05-31-char-shift-crash.ll.script: line 3: 23027 Abort trap: 6           /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -O0 -mtriple=armv4t--linux-eabi-android < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/ARM/2013-05-31-char-shift-crash.ll

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