Regression

LLVM.CodeGen/Thumb2.v8_deprecate_IT.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/Thumb2/v8_deprecate_IT.ll -mtriple=thumbv7 -o - | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-mc -triple thumbv7 --show-encoding 2>&1 | /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/Thumb2/v8_deprecate_IT.ll --check-prefix=V7
: '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/Thumb2/v8_deprecate_IT.ll -mtriple=thumbv7 -arm-restrict-it -o - | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-mc -triple thumbv7 --show-encoding 2>&1 | /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/Thumb2/v8_deprecate_IT.ll --check-prefix=V7_RESTRICT_IT
: '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/Thumb2/v8_deprecate_IT.ll -mtriple=thumbv8 -o - | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-mc -triple thumbv8 --show-encoding 2>&1 | /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/Thumb2/v8_deprecate_IT.ll --check-prefix=V8
: 'RUN: at line 4';   /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/Thumb2/v8_deprecate_IT.ll -mtriple=thumbv8 -arm-no-restrict-it -o - | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-mc -triple thumbv8 --show-encoding 2>&1 | /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/Thumb2/v8_deprecate_IT.ll --check-prefix=V8_NO_RESTRICT_IT
--
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.	Program arguments: /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=thumbv7 -o - 
1.	Running pass 'Function Pass Manager' on module '<stdin>'.
2.	Running pass 'ReachingDefAnalysis' on function '@scalar_i64_lowestbit_eq'
/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/CodeGen/Thumb2/Output/v8_deprecate_IT.ll.script: line 4: 52375 Abort trap: 6           /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=thumbv7 -o - < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/Thumb2/v8_deprecate_IT.ll
     52376 Done                    | /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llvm-mc -triple thumbv7 --show-encoding 2>&1
     52377 Done                    | /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/Thumb2/v8_deprecate_IT.ll --check-prefix=V7

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