Regression

LLVM.CodeGen/X86.cmpxchg-clobber-flags.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 0.63 sec.

Stacktrace

Script:
--
: 'RUN: at line 2';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=i386-linux-gnu -verify-machineinstrs /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -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/CodeGen/X86/cmpxchg-clobber-flags.ll --check-prefixes=32-ALL,32-GOOD-RA
: 'RUN: at line 3';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=i386-linux-gnu -verify-machineinstrs -pre-RA-sched=fast /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -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/CodeGen/X86/cmpxchg-clobber-flags.ll --check-prefixes=32-ALL,32-FAST-RA
: 'RUN: at line 5';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=x86_64-linux-gnu -verify-machineinstrs /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -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/CodeGen/X86/cmpxchg-clobber-flags.ll --check-prefixes=64-ALL,64-GOOD-RA
: 'RUN: at line 6';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=x86_64-linux-gnu -verify-machineinstrs -pre-RA-sched=fast /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -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/CodeGen/X86/cmpxchg-clobber-flags.ll --check-prefixes=64-ALL,64-FAST-RA
: 'RUN: at line 7';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=x86_64-linux-gnu -verify-machineinstrs -mattr=+sahf /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -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/CodeGen/X86/cmpxchg-clobber-flags.ll --check-prefixes=64-ALL,64-GOOD-RA-SAHF
: 'RUN: at line 8';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=x86_64-linux-gnu -verify-machineinstrs -mattr=+sahf -pre-RA-sched=fast /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -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/CodeGen/X86/cmpxchg-clobber-flags.ll --check-prefixes=64-ALL,64-FAST-RA-SAHF
: 'RUN: at line 9';   /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=x86_64-linux-gnu -verify-machineinstrs -mcpu=corei7 /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -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/CodeGen/X86/cmpxchg-clobber-flags.ll --check-prefixes=64-ALL,64-GOOD-RA-SAHF
--
Exit Code: 2

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 -mtriple=i386-linux-gnu -verify-machineinstrs /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll -o - 
1.	Running pass 'Function Pass Manager' on module '/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/cmpxchg-clobber-flags.ll'.
2.	Running pass 'ReachingDefAnalysis' on function '@test_intervening_call'
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/cmpxchg-clobber-flags.ll --check-prefixes=32-ALL,32-GOOD-RA

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