Regression

LLVM.Transforms/LoopStrengthReduce/X86.lsr-insns-1.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 2.1 sec.

Stacktrace

Script:
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: 'RUN: at line 3';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/opt < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/Transforms/LoopStrengthReduce/X86/lsr-insns-1.ll -loop-reduce -mtriple=x86_64  -S | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/Transforms/LoopStrengthReduce/X86/lsr-insns-1.ll -check-prefix=BOTH -check-prefix=INSN
: 'RUN: at line 4';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/opt < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/Transforms/LoopStrengthReduce/X86/lsr-insns-1.ll -loop-reduce -mtriple=x86_64 -lsr-insns-cost=false -S | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/Transforms/LoopStrengthReduce/X86/lsr-insns-1.ll -check-prefix=BOTH -check-prefix=REGS
: 'RUN: at line 5';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/Transforms/LoopStrengthReduce/X86/lsr-insns-1.ll -O2 -mtriple=x86_64-unknown-unknown -lsr-insns-cost | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/Transforms/LoopStrengthReduce/X86/lsr-insns-1.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 -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 -O2 -mtriple=x86_64-unknown-unknown -lsr-insns-cost 
1.	Running pass 'Function Pass Manager' on module '<stdin>'.
2.	Running pass 'ReachingDefAnalysis' on function '@foo'
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/Transforms/LoopStrengthReduce/X86/lsr-insns-1.ll

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