; LLVM IR from buresjan/optim_lbm :: nomad/ext/sgtelib/src/Kernel.ll (ZN7SGTELIB11kernel_dminENS_8kernel_tE)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str.12 = external hidden unnamed_addr constant [85 x i8], align 1
@_ZTIN7SGTELIB9ExceptionE = external dso_local constant { ptr, ptr, ptr }, align 8
@.str.16 = external hidden unnamed_addr constant [35 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare ptr @__cxa_allocate_exception(i64)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7SGTELIB9ExceptionC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiS8_(ptr noundef nonnull align 8 dereferenceable(112), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7SGTELIB9ExceptionD2Ev(ptr noundef nonnull align 8 dereferenceable(112)) unnamed_addr #1 align 2

declare void @__cxa_throw(ptr, ptr, ptr)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

declare void @__cxa_free_exception(ptr)

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7SGTELIB11kernel_dminENS_8kernel_tE(i32 noundef %0) #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca i1, align 1
  store i32 %0, ptr %3, align 4, !tbaa !5
  %11 = load i32, ptr %3, align 4, !tbaa !5
  switch i32 %11, label %15 [
    i32 0, label %12
    i32 1, label %12
    i32 2, label %12
    i32 3, label %12
    i32 4, label %12
    i32 5, label %12
    i32 6, label %12
    i32 7, label %13
    i32 8, label %13
    i32 9, label %14
    i32 10, label %14
    i32 11, label %14
  ]

12:                                               ; preds = %1, %1, %1, %1, %1, %1, %1
  store i32 -1, ptr %2, align 4
  br label %37

13:                                               ; preds = %1, %1
  store i32 0, ptr %2, align 4
  br label %37

14:                                               ; preds = %1, %1, %1
  store i32 1, ptr %2, align 4
  br label %37

15:                                               ; preds = %1
  store i1 true, ptr %10, align 1
  %16 = call ptr @__cxa_allocate_exception(i64 112) #3
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef @.str.12, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %17 unwind label %20

17:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef @.str.16, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %18 unwind label %24

18:                                               ; preds = %17
  invoke void @_ZN7SGTELIB9ExceptionC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiS8_(ptr noundef nonnull align 8 dereferenceable(112) %16, ptr noundef nonnull align 8 dereferenceable(32) %4, i32 noundef 129, ptr noundef nonnull align 8 dereferenceable(32) %8)
          to label %19 unwind label %28

19:                                               ; preds = %18
  store i1 false, ptr %10, align 1
  invoke void @__cxa_throw(ptr %16, ptr @_ZTIN7SGTELIB9ExceptionE, ptr @_ZN7SGTELIB9ExceptionD2Ev) #4
          to label %44 unwind label %28

20:                                               ; preds = %15
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %6, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %7, align 4
  br label %33

24:                                               ; preds = %17
  %25 = landingpad { ptr, i32 }
          cleanup
  %26 = extractvalue { ptr, i32 } %25, 0
  store ptr %26, ptr %6, align 8
  %27 = extractvalue { ptr, i32 } %25, 1
  store i32 %27, ptr %7, align 4
  br label %32

28:                                               ; preds = %19, %18
  %29 = landingpad { ptr, i32 }
          cleanup
  %30 = extractvalue { ptr, i32 } %29, 0
  store ptr %30, ptr %6, align 8
  %31 = extractvalue { ptr, i32 } %29, 1
  store i32 %31, ptr %7, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #3
  br label %32

32:                                               ; preds = %28, %24
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  br label %33

33:                                               ; preds = %32, %20
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #3
  %34 = load i1, ptr %10, align 1
  br i1 %34, label %35, label %36

35:                                               ; preds = %33
  call void @__cxa_free_exception(ptr %16) #3
  br label %36

36:                                               ; preds = %35, %33
  br label %39

37:                                               ; preds = %14, %13, %12
  %38 = load i32, ptr %2, align 4
  ret i32 %38

39:                                               ; preds = %36
  %40 = load ptr, ptr %6, align 8
  %41 = load i32, ptr %7, align 4
  %42 = insertvalue { ptr, i32 } poison, ptr %40, 0
  %43 = insertvalue { ptr, i32 } %42, i32 %41, 1
  resume { ptr, i32 } %43

44:                                               ; preds = %19
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }
attributes #4 = { noreturn }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"_ZTSN7SGTELIB8kernel_tE", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str.12 = external hidden unnamed_addr constant [85 x i8], align 1
@_ZTIN7SGTELIB9ExceptionE = external dso_local constant { ptr, ptr, ptr }, align 8
@.str.16 = external hidden unnamed_addr constant [35 x i8], align 1
@switch.table._ZN7SGTELIB11kernel_dminENS_8kernel_tE = private unnamed_addr constant [12 x i32] [i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 0, i32 0, i32 1, i32 1, i32 1], align 4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7SGTELIB9ExceptionC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiS8_(ptr noundef nonnull align 8 dereferenceable(112), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef, ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7SGTELIB9ExceptionD2Ev(ptr noundef nonnull align 8 dereferenceable(112)) unnamed_addr #1 align 2

declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

declare void @__cxa_free_exception(ptr) local_unnamed_addr

; Function Attrs: mustprogress uwtable
define dso_local noundef range(i32 -1, 2) i32 @_ZN7SGTELIB11kernel_dminENS_8kernel_tE(i32 noundef %0) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = icmp ult i32 %0, 12
  br i1 %6, label %switch.lookup, label %7

7:                                                ; preds = %1
  %8 = tail call ptr @__cxa_allocate_exception(i64 112) #3
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull @.str.12, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %9 unwind label %.thread

9:                                                ; preds = %7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull @.str.16, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %10 unwind label %13

10:                                               ; preds = %9
  invoke void @_ZN7SGTELIB9ExceptionC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEiS8_(ptr noundef nonnull align 8 dereferenceable(112) %8, ptr noundef nonnull align 8 dereferenceable(32) %2, i32 noundef 129, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %11 unwind label %15

11:                                               ; preds = %10
  invoke void @__cxa_throw(ptr nonnull %8, ptr nonnull @_ZTIN7SGTELIB9ExceptionE, ptr nonnull @_ZN7SGTELIB9ExceptionD2Ev) #4
          to label %21 unwind label %15

.thread:                                          ; preds = %7
  %12 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #3
  br label %18

13:                                               ; preds = %9
  %14 = landingpad { ptr, i32 }
          cleanup
  br label %17

15:                                               ; preds = %11, %10
  %.0 = phi i1 [ false, %11 ], [ true, %10 ]
  %16 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #3
  br label %17

17:                                               ; preds = %13, %15
  %.pn = phi { ptr, i32 } [ %16, %15 ], [ %14, %13 ]
  %.1 = phi i1 [ %.0, %15 ], [ true, %13 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #3
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #3
  br i1 %.1, label %18, label %20

18:                                               ; preds = %.thread, %17
  %.pn.pn14 = phi { ptr, i32 } [ %12, %.thread ], [ %.pn, %17 ]
  call void @__cxa_free_exception(ptr %8) #3
  br label %20

switch.lookup:                                    ; preds = %1
  %19 = zext nneg i32 %0 to i64
  %switch.gep = getelementptr inbounds [12 x i32], ptr @switch.table._ZN7SGTELIB11kernel_dminENS_8kernel_tE, i64 0, i64 %19
  %switch.load = load i32, ptr %switch.gep, align 4
  ret i32 %switch.load

20:                                               ; preds = %17, %18
  %.pn.pn13 = phi { ptr, i32 } [ %.pn, %17 ], [ %.pn.pn14, %18 ]
  resume { ptr, i32 } %.pn.pn13

21:                                               ; preds = %11
  unreachable
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }
attributes #4 = { noreturn }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,SimplifyCFGPass,TailCallElimPass