; LLVM IR from BurntSushi/clibs :: libds (hashmap)

; 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"

%struct.DSHashMap = type { ptr, ptr }

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [66 x i8], align 1
@__PRETTY_FUNCTION__.ds_hashmap_create = external hidden unnamed_addr constant [38 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local ptr @ds_hashmap_create() #0 {
  %1 = alloca ptr, align 8
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  %3 = call noalias ptr @malloc(i64 noundef 16) #6
  store ptr %3, ptr %1, align 8, !tbaa !5
  %4 = load ptr, ptr %1, align 8, !tbaa !5
  %5 = icmp ne ptr %4, null
  br i1 %5, label %6, label %7

6:                                                ; preds = %0
  br label %8

7:                                                ; preds = %0
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 44, ptr noundef @__PRETTY_FUNCTION__.ds_hashmap_create) #7
  unreachable

8:                                                ; preds = %6
  %9 = call ptr (...) @ds_vector_create()
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.DSHashMap, ptr %10, i32 0, i32 0
  store ptr %9, ptr %11, align 8, !tbaa !9
  %12 = call noalias ptr @malloc(i64 noundef 8000000) #6
  %13 = load ptr, ptr %1, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.DSHashMap, ptr %13, i32 0, i32 1
  store ptr %12, ptr %14, align 8, !tbaa !11
  %15 = load ptr, ptr %1, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.DSHashMap, ptr %15, i32 0, i32 1
  %17 = load ptr, ptr %16, align 8, !tbaa !11
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %20

19:                                               ; preds = %8
  br label %21

20:                                               ; preds = %8
  call void @__assert_fail(ptr noundef @.str.2, ptr noundef @.str.1, i32 noundef 48, ptr noundef @__PRETTY_FUNCTION__.ds_hashmap_create) #7
  unreachable

21:                                               ; preds = %19
  store i32 0, ptr %2, align 4, !tbaa !12
  br label %22

22:                                               ; preds = %32, %21
  %23 = load i32, ptr %2, align 4, !tbaa !12
  %24 = icmp slt i32 %23, 1000000
  br i1 %24, label %25, label %35

25:                                               ; preds = %22
  %26 = load ptr, ptr %1, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.DSHashMap, ptr %26, i32 0, i32 1
  %28 = load ptr, ptr %27, align 8, !tbaa !11
  %29 = load i32, ptr %2, align 4, !tbaa !12
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds ptr, ptr %28, i64 %30
  store ptr null, ptr %31, align 8, !tbaa !5
  br label %32

32:                                               ; preds = %25
  %33 = load i32, ptr %2, align 4, !tbaa !12
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %2, align 4, !tbaa !12
  br label %22, !llvm.loop !14

35:                                               ; preds = %22
  %36 = load ptr, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #5
  ret ptr %36
}

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #3

declare ptr @ds_vector_create(...) #4

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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(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 = { noreturn nounwind "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 #4 = { "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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }
attributes #7 = { noreturn 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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"DSHashMap", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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"

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [66 x i8], align 1
@__PRETTY_FUNCTION__.ds_hashmap_create = external hidden unnamed_addr constant [38 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [14 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @ds_hashmap_create() local_unnamed_addr #0 {
  %1 = tail call noalias dereferenceable_or_null(16) ptr @malloc(i64 noundef 16) #5
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %2, label %3

2:                                                ; preds = %0
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 44, ptr noundef nonnull @__PRETTY_FUNCTION__.ds_hashmap_create) #6
  unreachable

3:                                                ; preds = %0
  %4 = tail call ptr (...) @ds_vector_create() #7
  store ptr %4, ptr %1, align 8, !tbaa !5
  %calloc = tail call dereferenceable_or_null(8000000) ptr @calloc(i64 1, i64 8000000)
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  store ptr %calloc, ptr %5, align 8, !tbaa !10
  %.not9 = icmp eq ptr %calloc, null
  br i1 %.not9, label %6, label %.preheader.preheader

.preheader.preheader:                             ; preds = %3
  ret ptr %1

6:                                                ; preds = %3
  tail call void @__assert_fail(ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.1, i32 noundef 48, ptr noundef nonnull @__PRETTY_FUNCTION__.ds_hashmap_create) #6
  unreachable
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #2

declare ptr @ds_vector_create(...) local_unnamed_addr #3

; Function Attrs: nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #4

attributes #0 = { 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 #1 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { noreturn nounwind "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 = { "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 #4 = { nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }
attributes #5 = { nounwind allocsize(0) }
attributes #6 = { noreturn nounwind }
attributes #7 = { 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, !7, i64 0}
!6 = !{!"DSHashMap", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 8}


; Effective O3 passes: DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopIdiomRecognizePass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass