Regression

LLVM.CodeGen/X86.bitcast.ll (from LLVM)

Failing for the past 1 build (Since Failed#7066 )
Took 1.1 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/X86/bitcast.ll -mtriple=i686--
: '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/X86/bitcast.ll -mtriple=x86_64--
--
Exit Code: 134

Command Output (stdout):
--
	.text
	.file	"<stdin>"
	.globl	test1                   # -- Begin function test1
	.p2align	4, 0x90
	.type	test1,@function
test1:                                  # @test1
	.cfi_startproc
# %bb.0:
	movl	4(%esp), %eax
	movl	8(%esp), %edx
	retl
.Lfunc_end0:
	.size	test1, .Lfunc_end0-test1
	.cfi_endproc
                                        # -- End function
	.globl	test2                   # -- Begin function test2
	.p2align	4, 0x90
	.type	test2,@function
test2:                                  # @test2
	.cfi_startproc
# %bb.0:
	fldl	4(%esp)
	retl
.Lfunc_end1:
	.size	test2, .Lfunc_end1-test2
	.cfi_endproc
                                        # -- End function
	.globl	test3                   # -- Begin function test3
	.p2align	4, 0x90
	.type	test3,@function
test3:                                  # @test3
	.cfi_startproc
# %bb.0:
	movl	4(%esp), %eax
	retl
.Lfunc_end2:
	.size	test3, .Lfunc_end2-test3
	.cfi_endproc
                                        # -- End function
	.globl	test4                   # -- Begin function test4
	.p2align	4, 0x90
	.type	test4,@function
test4:                                  # @test4
	.cfi_startproc
# %bb.0:
	flds	4(%esp)
	retl
.Lfunc_end3:
	.size	test4, .Lfunc_end3-test4
	.cfi_endproc
                                        # -- End function
	.section	".note.GNU-stack","",@progbits

--
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=x86_64-- 
1.	Running pass 'Function Pass Manager' on module '<stdin>'.
2.	Running pass 'ReachingDefAnalysis' on function '@test1'
/Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/test/CodeGen/X86/Output/bitcast.ll.script: line 2: 56369 Abort trap: 6           /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/clang-build/bin/llc -mtriple=x86_64-- < /Users/buildslave/jenkins/workspace/clang-stage2-cmake-RgSan/llvm-project/llvm/test/CodeGen/X86/bitcast.ll

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