Regression

LLVM.CodeGen/X86.push-cfi-obj.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 0.8 sec.

Stacktrace

Script:
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: '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/X86/push-cfi-obj.ll -mtriple=i686-pc-linux -filetype=obj | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-readobj -S --sr --sd | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/push-cfi-obj.ll -check-prefix=LINUX
: '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/X86/push-cfi-obj.ll -mtriple=i686-darwin-macosx10.7 -filetype=obj | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-readobj --sections | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck -check-prefix=DARWIN /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/push-cfi-obj.ll
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Exit Code: 2

Command Output (stderr):
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/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 -12
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 -mtriple=i686-pc-linux -filetype=obj 
1.	Running pass 'Function Pass Manager' on module '<stdin>'.
2.	Running pass 'ReachingDefAnalysis' on function '@test'
/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-readobj: error: '<stdin>': The file was not recognized as a valid object file
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/push-cfi-obj.ll -check-prefix=LINUX

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