Regression

LLVM.CodeGen/ARM.special-reg.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 0.53 sec.

Stacktrace

Script:
--
: '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/ARM/special-reg.ll -mtriple=arm-none-eabi -mcpu=cortex-a8 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/ARM/special-reg.ll --check-prefix=ARM --check-prefix=ACORE
: '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/ARM/special-reg.ll -mtriple=thumb-none-eabi -mcpu=cortex-m4 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/ARM/special-reg.ll --check-prefix=ARM --check-prefix=MCORE
--
Exit Code: 1

Command Output (stderr):
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/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/ARM/special-reg.ll:6:14: error: ARM-LABEL: expected string not found in input
; ARM-LABEL: read_i32_encoded_register:
             ^
<stdin>:1:1: note: scanning from here
/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
^
<stdin>:7:54: note: possible intended match here
2. Running pass 'ReachingDefAnalysis' on function '@write_i32_encoded_register'
                                                     ^

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