Regression

LLVM.ThinLTO/X86.cfi.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 0.9 sec.

Stacktrace

Script:
--
: 'RUN: at line 5';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/opt -thinlto-bc -thinlto-split-lto-unit -o /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/ThinLTO/X86/cfi.ll
: 'RUN: at line 8';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-lto2 run -save-temps /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o    -o /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp3    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,test,px    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZTV1B,    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZN1B1fEi,    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZTV1B,px
: 'RUN: at line 14';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-dis /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp3.1.4.opt.bc -o - | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/ThinLTO/X86/cfi.ll --check-prefix=CHECK-IR
: 'RUN: at line 17';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-lto2 run -save-temps /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o -use-new-pm    -o /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp3    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,test,px    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZTV1B,    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZN1B1fEi,    -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZTV1B,px
: 'RUN: at line 23';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-dis /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp3.1.4.opt.bc -o - | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/ThinLTO/X86/cfi.ll --check-prefix=CHECK-IR
--
Exit Code: 134

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 -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.	Running pass 'Function Pass Manager' on module '/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o'.
1.	Running pass 'ReachingDefAnalysis' on function '@test'
/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.script: line 5:  6388 Abort trap: 6           /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-lto2 run -save-temps /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o -o /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp3 -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,test,px -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZTV1B, -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZN1B1fEi, -r=/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/ThinLTO/X86/Output/cfi.ll.tmp.o,_ZTV1B,px

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