/home/bs_releases/BiSheng-3.1.0/bin/opt --version
BiSheng Enterprise 3.1.0.B006 LLVM version 15.0.4

 Optimized build.

 Default target: x86_64-unknown-linux-gnu

 Host CPU: znver3

$ /home/bs_releases/BiSheng-3.1.0/bin/opt -passes=mem2reg,newgvn,jump-threading,sink a.ll

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: /home/bs_releases/BiSheng-3.1.0/bin/opt -passes=mem2reg,newgvn,jump-threading,sink a.ll
 #0 0x000055b791fe4b8f (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x1d80b8f)
 #1 0x000055b791fe213c (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x1d7e13c)
 #2 0x00007ff869347420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
 #3 0x000055b791eb5e9d (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x1c51e9d)
 #4 0x000055b791eb6564 llvm::SinkingPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x1c52564)
 #5 0x000055b7923410e1 (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x20dd0e1)
 #6 0x000055b7916f892f llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x149492f)
 #7 0x000055b79233ce21 (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x20d8e21)
 #8 0x000055b7916f74b0 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x14934b0)
 #9 0x000055b792344521 (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x20e0521)
#10 0x000055b7916f46ea llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x14906ea)
#11 0x000055b7908fc4e0 llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::StringRef>, llvm::ArrayRef<llvm::PassPlugin>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool) (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x6984e0)
#12 0x000055b790814b2a main (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x5b0b2a)
#13 0x00007ff868fcd083 __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:342:3
#14 0x000055b7908ee7e5 _start (/home/bs_releases/BiSheng-3.1.0/bin/opt+0x68a7e5)
Segmentation fault (core dumped)
$ echo $?
139

$ /home/bs_releases/BiSheng-3.1.0/bin/opt  a.ll
$ echo $?
0

; ModuleID = 'a.c'
source_filename = "a.c"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: nounwind uwtable
define dso_local zeroext i16 @a() #0 {
  %1 = alloca i16, align 2
  %2 = alloca i32, align 4
  %3 = alloca i8, align 1
  %4 = alloca [3 x [4 x [8 x i32]]], align 16
  %5 = alloca i8, align 1
  %6 = alloca i16, align 2
  %7 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %39, %0
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #2
  call void @llvm.lifetime.start.p0(i64 384, ptr %4) #2
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #2
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = trunc i32 %9 to i16
  %11 = call zeroext i16 @safe_mod_func_uint16_t_u_u(i16 noundef zeroext 0, i16 noundef zeroext %10)
  %12 = icmp ne i16 %11, 0
  br i1 %12, label %13, label %27

13:                                               ; preds = %8
  br label %14

14:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 2, ptr %6) #2
  %15 = getelementptr inbounds [3 x [4 x [8 x i32]]], ptr %4, i64 0, i64 1
  %16 = getelementptr inbounds [4 x [8 x i32]], ptr %15, i64 0, i64 0
  %17 = getelementptr inbounds [8 x i32], ptr %16, i64 0, i64 3
  %18 = load i32, ptr %17, align 4, !tbaa !5
  %19 = icmp ne i32 %18, 0
  br i1 %19, label %20, label %21

20:                                               ; preds = %14
  store i32 5, ptr %7, align 4
  br label %24

21:                                               ; preds = %14
  %22 = load i8, ptr %3, align 1, !tbaa !9
  %23 = sext i8 %22 to i16
  store i16 %23, ptr %1, align 2
  store i32 1, ptr %7, align 4
  br label %24

24:                                               ; preds = %21, %20
  call void @llvm.lifetime.end.p0(i64 2, ptr %6) #2
  %25 = load i32, ptr %7, align 4
  switch i32 %25, label %36 [
    i32 5, label %26
  ]

26:                                               ; preds = %24
  br label %27

27:                                               ; preds = %26, %8
  br label %28

28:                                               ; preds = %34, %27
  %29 = load i8, ptr %5, align 1, !tbaa !9
  %30 = icmp ne i8 %29, 0
  br i1 %30, label %31, label %35

31:                                               ; preds = %28
  %32 = load i32, ptr %2, align 4, !tbaa !5
  %33 = trunc i32 %32 to i16
  store i16 %33, ptr %1, align 2
  store i32 1, ptr %7, align 4
  br label %36

34:                                               ; No predecessors!
  br label %28, !llvm.loop !10

35:                                               ; preds = %28
  store i32 0, ptr %7, align 4
  br label %36

36:                                               ; preds = %35, %31, %24
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 384, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #2
  %37 = load i32, ptr %7, align 4
  switch i32 %37, label %42 [
    i32 0, label %38
  ]

38:                                               ; preds = %36
  br label %39

39:                                               ; preds = %38
  %40 = load i32, ptr %2, align 4, !tbaa !5
  %41 = add nsw i32 %40, -1
  store i32 %41, ptr %2, align 4, !tbaa !5
  br label %8

42:                                               ; preds = %36
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #2
  %43 = load i16, ptr %1, align 2
  ret i16 %43
}

; Function Attrs: argmemonly nocallback nofree nosync nounwind willreturn
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define internal zeroext i16 @safe_mod_func_uint16_t_u_u(i16 noundef zeroext %0, i16 noundef zeroext %1) #0 {
  %3 = alloca i16, align 2
  %4 = alloca i16, align 2
  store i16 %0, ptr %3, align 2, !tbaa !12
  store i16 %1, ptr %4, align 2, !tbaa !12
  %5 = load i16, ptr %4, align 2, !tbaa !12
  %6 = zext i16 %5 to i32
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %8, label %11

8:                                                ; preds = %2
  %9 = load i16, ptr %3, align 2, !tbaa !12
  %10 = zext i16 %9 to i32
  br label %17

11:                                               ; preds = %2
  %12 = load i16, ptr %3, align 2, !tbaa !12
  %13 = zext i16 %12 to i32
  %14 = load i16, ptr %4, align 2, !tbaa !12
  %15 = zext i16 %14 to i32
  %16 = srem i32 %13, %15
  br label %17

17:                                               ; preds = %11, %8
  %18 = phi i32 [ %10, %8 ], [ %16, %11 ]
  %19 = trunc i32 %18 to i16
  ret i16 %19
}

; Function Attrs: argmemonly nocallback nofree nosync nounwind willreturn
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  ret i32 0
}

attributes #0 = { nounwind uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { argmemonly nocallback nofree nosync nounwind willreturn }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 7, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"BiSheng Enterprise 3.1.0.B006 clang version 15.0.4 (721bae198ed1)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = !{!13, !13, i64 0}
!13 = !{!"short", !7, i64 0}