; LLVM IR from oservo/aiFi :: linkedList (linkedListNew)

; 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.linkedList = type { ptr, ptr, ptr }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [53 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [58 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [17 x i8], align 1
@__PRETTY_FUNCTION__.linkedListNew = external hidden unnamed_addr constant [28 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: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #3

; Function Attrs: nounwind
declare ptr @strerror(i32 noundef) #2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #4

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

; Function Attrs: nounwind uwtable
define dso_local ptr @linkedListNew() #5 {
  %1 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #6
  %2 = call noalias ptr @malloc(i64 noundef 24) #7
  store ptr %2, ptr %1, align 8, !tbaa !5
  %3 = load ptr, ptr %1, align 8, !tbaa !5
  %4 = icmp ne ptr %3, null
  br i1 %4, label %23, label %5

5:                                                ; preds = %0
  %6 = load ptr, ptr @stderr, align 8, !tbaa !5
  %7 = call ptr @__errno_location() #8
  %8 = load i32, ptr %7, align 4, !tbaa !9
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %10, label %11

10:                                               ; preds = %5
  br label %15

11:                                               ; preds = %5
  %12 = call ptr @__errno_location() #8
  %13 = load i32, ptr %12, align 4, !tbaa !9
  %14 = call ptr @strerror(i32 noundef %13) #6
  br label %15

15:                                               ; preds = %11, %10
  %16 = phi ptr [ @.str.2, %10 ], [ %14, %11 ]
  %17 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %6, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 20, ptr noundef %16) #6
  %18 = load ptr, ptr %1, align 8, !tbaa !5
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %21

20:                                               ; preds = %15
  br label %22

21:                                               ; preds = %15
  call void @__assert_fail(ptr noundef @.str.4, ptr noundef @.str.1, i32 noundef 20, ptr noundef @__PRETTY_FUNCTION__.linkedListNew) #9
  unreachable

22:                                               ; preds = %20
  br label %23

23:                                               ; preds = %22, %0
  %24 = load ptr, ptr %1, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.linkedList, ptr %24, i32 0, i32 0
  store ptr null, ptr %25, align 8, !tbaa !11
  %26 = load ptr, ptr %1, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.linkedList, ptr %26, i32 0, i32 2
  store ptr null, ptr %27, align 8, !tbaa !13
  %28 = load ptr, ptr %1, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.linkedList, ptr %28, i32 0, i32 1
  store ptr null, ptr %29, align 8, !tbaa !14
  %30 = load ptr, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #6
  ret ptr %30
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 = { nounwind willreturn memory(none) "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 = { 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 #5 = { 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 #6 = { nounwind }
attributes #7 = { nounwind allocsize(0) }
attributes #8 = { nounwind willreturn memory(none) }
attributes #9 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"linkedList", !6, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !6, i64 16}
!14 = !{!12, !6, i64 8}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [53 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [58 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [17 x i8], align 1
@__PRETTY_FUNCTION__.linkedListNew = external hidden unnamed_addr constant [28 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #1

; Function Attrs: nounwind
declare ptr @strerror(i32 noundef) local_unnamed_addr #2

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

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @linkedListNew() local_unnamed_addr #4 {
  %calloc = tail call dereferenceable_or_null(24) ptr @calloc(i64 1, i64 24)
  %.not = icmp eq ptr %calloc, null
  br i1 %.not, label %1, label %11

1:                                                ; preds = %0
  %2 = load ptr, ptr @stderr, align 8, !tbaa !5
  %3 = tail call ptr @__errno_location() #6
  %4 = load i32, ptr %3, align 4, !tbaa !9
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %8, label %6

6:                                                ; preds = %1
  %7 = tail call ptr @strerror(i32 noundef %4) #7
  br label %8

8:                                                ; preds = %1, %6
  %9 = phi ptr [ %7, %6 ], [ @.str.2, %1 ]
  %10 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %2, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 20, ptr noundef %9) #8
  tail call void @__assert_fail(ptr noundef nonnull @.str.4, ptr noundef nonnull @.str.1, i32 noundef 20, ptr noundef nonnull @__PRETTY_FUNCTION__.linkedListNew) #9
  unreachable

11:                                               ; preds = %0
  ret ptr %calloc
}

; 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 #5

attributes #0 = { nofree 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 #1 = { mustprogress nofree nosync nounwind willreturn memory(none) "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 = { 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 = { 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 = { 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 #5 = { nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }
attributes #6 = { nounwind willreturn memory(none) }
attributes #7 = { nounwind }
attributes #8 = { cold nounwind }
attributes #9 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass