; LLVM IR from clibs/clib :: deps/list (list)

; 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.list_t = type { ptr, ptr, i32, ptr, ptr }
%struct.list_node = type { ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local ptr @list_lpush(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %9, label %8

8:                                                ; preds = %2
  store ptr null, ptr %3, align 8
  br label %46

9:                                                ; preds = %2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.list_t, ptr %10, i32 0, i32 2
  %12 = load i32, ptr %11, align 8, !tbaa !9
  %13 = icmp ne i32 %12, 0
  br i1 %13, label %14, label %30

14:                                               ; preds = %9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.list_t, ptr %15, i32 0, i32 0
  %17 = load ptr, ptr %16, align 8, !tbaa !12
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.list_node, ptr %18, i32 0, i32 1
  store ptr %17, ptr %19, align 8, !tbaa !13
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.list_node, ptr %20, i32 0, i32 0
  store ptr null, ptr %21, align 8, !tbaa !15
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.list_t, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !12
  %26 = getelementptr inbounds %struct.list_node, ptr %25, i32 0, i32 0
  store ptr %22, ptr %26, align 8, !tbaa !15
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.list_t, ptr %28, i32 0, i32 0
  store ptr %27, ptr %29, align 8, !tbaa !12
  br label %40

30:                                               ; preds = %9
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.list_t, ptr %32, i32 0, i32 1
  store ptr %31, ptr %33, align 8, !tbaa !16
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.list_t, ptr %34, i32 0, i32 0
  store ptr %31, ptr %35, align 8, !tbaa !12
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.list_node, ptr %36, i32 0, i32 1
  store ptr null, ptr %37, align 8, !tbaa !13
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.list_node, ptr %38, i32 0, i32 0
  store ptr null, ptr %39, align 8, !tbaa !15
  br label %40

40:                                               ; preds = %30, %14
  %41 = load ptr, ptr %4, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.list_t, ptr %41, i32 0, i32 2
  %43 = load i32, ptr %42, align 8, !tbaa !9
  %44 = add i32 %43, 1
  store i32 %44, ptr %42, align 8, !tbaa !9
  %45 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %45, ptr %3, align 8
  br label %46

46:                                               ; preds = %40, %8
  %47 = load ptr, ptr %3, align 8
  ret ptr %47
}

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" }

!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, !11, i64 16}
!10 = !{!"", !6, i64 0, !6, i64 8, !11, i64 16, !6, i64 24, !6, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 0}
!13 = !{!14, !6, i64 8}
!14 = !{!"list_node", !6, i64 0, !6, i64 8, !6, i64 16}
!15 = !{!14, !6, i64 0}
!16 = !{!10, !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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local noundef ptr @list_lpush(ptr nocapture noundef %0, ptr noundef returned %1) local_unnamed_addr #0 {
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %13, label %3

3:                                                ; preds = %2
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %.not18 = icmp eq i32 %5, 0
  br i1 %.not18, label %8, label %6

6:                                                ; preds = %3
  %7 = load ptr, ptr %0, align 8, !tbaa !11
  store ptr null, ptr %1, align 8, !tbaa !12
  store ptr %1, ptr %7, align 8, !tbaa !12
  br label %10

8:                                                ; preds = %3
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %1, ptr %9, align 8, !tbaa !14
  store ptr null, ptr %1, align 8, !tbaa !12
  br label %10

10:                                               ; preds = %8, %6
  %.sink = phi ptr [ null, %8 ], [ %7, %6 ]
  store ptr %1, ptr %0, align 8
  %11 = getelementptr inbounds i8, ptr %1, i64 8
  store ptr %.sink, ptr %11, align 8
  %12 = add i32 %5, 1
  store i32 %12, ptr %4, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %2, %10
  ret ptr %1
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) 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" }

!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, !10, i64 16}
!6 = !{!"", !7, i64 0, !7, i64 8, !10, i64 16, !7, i64 24, !7, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!13, !7, i64 0}
!13 = !{!"list_node", !7, i64 0, !7, i64 8, !7, i64 16}
!14 = !{!6, !7, i64 8}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,MergedLoadStoreMotionPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass