; LLVM IR from vergecurrency/verge :: src/leveldb/util (testutil)

; 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.leveldb::Slice" = type { ptr, i64 }
%"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] }

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZN7leveldb4test12RandomStringEPNS_6RandomEiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef, i32 noundef, ptr noundef) #0

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #0 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7leveldb5SliceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress uwtable
define dso_local { ptr, i64 } @_ZN7leveldb4test18CompressibleStringEPNS_6RandomEdmPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0, double noundef %1, i64 noundef %2, ptr noundef %3) #0 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.leveldb::Slice", align 8
  %6 = alloca ptr, align 8
  %7 = alloca double, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca %"class.leveldb::Slice", align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store double %1, ptr %7, align 8, !tbaa !9
  store i64 %2, ptr %8, align 8, !tbaa !11
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %15 = load i64, ptr %8, align 8, !tbaa !11
  %16 = uitofp i64 %15 to double
  %17 = load double, ptr %7, align 8, !tbaa !9
  %18 = fmul double %16, %17
  %19 = fptosi double %18 to i32
  store i32 %19, ptr %10, align 4, !tbaa !13
  %20 = load i32, ptr %10, align 4, !tbaa !13
  %21 = icmp slt i32 %20, 1
  br i1 %21, label %22, label %23

22:                                               ; preds = %4
  store i32 1, ptr %10, align 4, !tbaa !13
  br label %23

23:                                               ; preds = %22, %4
  call void @llvm.lifetime.start.p0(i64 32, ptr %11) #3
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = load i32, ptr %10, align 4, !tbaa !13
  %26 = invoke { ptr, i64 } @_ZN7leveldb4test12RandomStringEPNS_6RandomEiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %24, i32 noundef %25, ptr noundef %11)
          to label %27 unwind label %42

27:                                               ; preds = %23
  %28 = getelementptr inbounds { ptr, i64 }, ptr %14, i32 0, i32 0
  %29 = extractvalue { ptr, i64 } %26, 0
  store ptr %29, ptr %28, align 8
  %30 = getelementptr inbounds { ptr, i64 }, ptr %14, i32 0, i32 1
  %31 = extractvalue { ptr, i64 } %26, 1
  store i64 %31, ptr %30, align 8
  %32 = load ptr, ptr %9, align 8, !tbaa !5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32) %32) #3
  br label %33

33:                                               ; preds = %41, %27
  %34 = load ptr, ptr %9, align 8, !tbaa !5
  %35 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %34) #3
  %36 = load i64, ptr %8, align 8, !tbaa !11
  %37 = icmp ult i64 %35, %36
  br i1 %37, label %38, label %46

38:                                               ; preds = %33
  %39 = load ptr, ptr %9, align 8, !tbaa !5
  %40 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %39, ptr noundef nonnull align 8 dereferenceable(32) %11)
          to label %41 unwind label %42

41:                                               ; preds = %38
  br label %33, !llvm.loop !15

42:                                               ; preds = %49, %46, %38, %23
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %12, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %13, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %53

46:                                               ; preds = %33
  %47 = load ptr, ptr %9, align 8, !tbaa !5
  %48 = load i64, ptr %8, align 8, !tbaa !11
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32) %47, i64 noundef %48)
          to label %49 unwind label %42

49:                                               ; preds = %46
  %50 = load ptr, ptr %9, align 8, !tbaa !5
  invoke void @_ZN7leveldb5SliceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 8 dereferenceable(32) %50)
          to label %51 unwind label %42

51:                                               ; preds = %49
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #3
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  %52 = load { ptr, i64 }, ptr %5, align 8
  ret { ptr, i64 } %52

53:                                               ; preds = %42
  %54 = load ptr, ptr %12, align 8
  %55 = load i32, ptr %13, align 4
  %56 = insertvalue { ptr, i32 } poison, ptr %54, 0
  %57 = insertvalue { ptr, i32 } %56, i32 %55, 1
  resume { ptr, i32 } %57
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nounwind }

!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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; 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.leveldb::Slice" = type { ptr, i64 }
%"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] }

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZN7leveldb4test12RandomStringEPNS_6RandomEiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #0 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7leveldb5SliceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress uwtable
define dso_local { ptr, i64 } @_ZN7leveldb4test18CompressibleStringEPNS_6RandomEdmPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0, double noundef %1, i64 noundef %2, ptr noundef %3) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.leveldb::Slice", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = uitofp i64 %2 to double
  %8 = fmul double %7, %1
  %9 = fptosi double %8 to i32
  %spec.store.select = tail call i32 @llvm.smax.i32(i32 %9, i32 1)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  %10 = invoke { ptr, i64 } @_ZN7leveldb4test12RandomStringEPNS_6RandomEiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0, i32 noundef %spec.store.select, ptr noundef nonnull %6)
          to label %11 unwind label %.loopexit.split-lp

11:                                               ; preds = %4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  br label %12

12:                                               ; preds = %15, %11
  %13 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  %14 = icmp ult i64 %13, %2
  br i1 %14, label %15, label %18

15:                                               ; preds = %12
  %16 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull align 8 dereferenceable(32) %6)
          to label %12 unwind label %.loopexit, !llvm.loop !5

.loopexit:                                        ; preds = %15
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %17

.loopexit.split-lp:                               ; preds = %4, %18
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %17

17:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #4
  resume { ptr, i32 } %lpad.phi

18:                                               ; preds = %12
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %2)
          to label %19 unwind label %.loopexit.split-lp

19:                                               ; preds = %18
  call void @_ZN7leveldb5SliceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 8 dereferenceable(32) %3)
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #4
  %.fca.0.load = load ptr, ptr %5, align 8
  %.fca.0.insert = insertvalue { ptr, i64 } poison, ptr %.fca.0.load, 0
  %.fca.1.gep = getelementptr inbounds i8, ptr %5, i64 8
  %.fca.1.load = load i64, ptr %.fca.1.gep, align 8
  %.fca.1.insert = insertvalue { ptr, i64 } %.fca.0.insert, i64 %.fca.1.load, 1
  ret { ptr, i64 } %.fca.1.insert
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5clearEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #3

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nounwind }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LoopSimplifyPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass