; LLVM IR from jingweizhanghuai/Morn :: src/util (morn_map)

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

@.str = external hidden unnamed_addr constant [75 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [17 x i8], align 1
@__FUNCTION__.mornMapNodeKeySize = external hidden unnamed_addr constant [19 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare void @m_Exception(i32 noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @mornMapNodeKeySize(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %12, label %8

8:                                                ; preds = %5
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = ptrtoint ptr %9 to i64
  %11 = icmp eq i64 %10, -1
  br label %12

12:                                               ; preds = %8, %5
  %13 = phi i1 [ true, %5 ], [ %11, %8 ]
  %14 = zext i1 %13 to i32
  store i32 %14, ptr %3, align 4, !tbaa !9
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = icmp ne i32 %15, 0
  br i1 %16, label %17, label %19

17:                                               ; preds = %12
  %18 = load i32, ptr %3, align 4, !tbaa !9
  call void (i32, i32, ptr, i32, ptr, ptr, ...) @m_Exception(i32 noundef %18, i32 noundef -1, ptr noundef @.str, i32 noundef 261, ptr noundef @__FUNCTION__.mornMapNodeKeySize, ptr noundef @.str.5)
  br label %19

19:                                               ; preds = %17, %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %20

20:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.MChainNode, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !11
  store ptr %23, ptr %4, align 8, !tbaa !5
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds i32, ptr %24, i64 0
  %26 = load i32, ptr %25, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  ret i32 %26
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"MChainNode", !6, i64 0, !6, i64 8, !6, i64 16}


; 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 [75 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [17 x i8], align 1
@__FUNCTION__.mornMapNodeKeySize = external hidden unnamed_addr constant [19 x i8], align 1

declare void @m_Exception(i32 noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @mornMapNodeKeySize(ptr noundef %0) local_unnamed_addr #1 {
  %magicptr = ptrtoint ptr %0 to i64
  switch i64 %magicptr, label %7 [
    i64 -1, label %2
    i64 0, label %2
  ]

2:                                                ; preds = %1, %1
  %3 = icmp eq ptr %0, null
  %4 = icmp eq ptr %0, inttoptr (i64 -1 to ptr)
  %5 = or i1 %3, %4
  %6 = zext i1 %5 to i32
  tail call void (i32, i32, ptr, i32, ptr, ptr, ...) @m_Exception(i32 noundef %6, i32 noundef -1, ptr noundef nonnull @.str, i32 noundef 261, ptr noundef nonnull @__FUNCTION__.mornMapNodeKeySize, ptr noundef nonnull @.str.5) #2
  br label %7

7:                                                ; preds = %1, %2
  %8 = load ptr, ptr %0, align 8, !tbaa !5
  %9 = load i32, ptr %8, align 4, !tbaa !10
  ret i32 %9
}

attributes #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 = { 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 = { 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 = !{!"MChainNode", !7, i64 0, !7, i64 8, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !8, i64 0}


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