; LLVM IR from Simple-XX/SimpleKernel :: src/libc/src/math (math)

; 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"

; Function Attrs: nounwind uwtable
define dso_local i64 @divmoddi4(i64 noundef %0, i64 noundef %1, ptr noundef %2) #0 {
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  store i64 %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 0, ptr %7, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %9 = load i64, ptr %4, align 8, !tbaa !5
  %10 = icmp slt i64 %9, 0
  br i1 %10, label %11, label %14

11:                                               ; preds = %3
  %12 = load i64, ptr %4, align 8, !tbaa !5
  %13 = sub nsw i64 0, %12
  store i64 %13, ptr %4, align 8, !tbaa !5
  store i32 1, ptr %7, align 4, !tbaa !11
  br label %14

14:                                               ; preds = %11, %3
  %15 = load i64, ptr %5, align 8, !tbaa !5
  %16 = icmp slt i64 %15, 0
  br i1 %16, label %17, label %22

17:                                               ; preds = %14
  %18 = load i64, ptr %5, align 8, !tbaa !5
  %19 = sub nsw i64 0, %18
  store i64 %19, ptr %5, align 8, !tbaa !5
  %20 = load i32, ptr %7, align 4, !tbaa !11
  %21 = xor i32 %20, 1
  store i32 %21, ptr %7, align 4, !tbaa !11
  br label %22

22:                                               ; preds = %17, %14
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %5, align 8, !tbaa !5
  %25 = load ptr, ptr %6, align 8, !tbaa !9
  %26 = call i64 @udivmoddi4(i64 noundef %23, i64 noundef %24, ptr noundef %25)
  store i64 %26, ptr %8, align 8, !tbaa !5
  %27 = load i32, ptr %7, align 4, !tbaa !11
  %28 = icmp ne i32 %27, 0
  br i1 %28, label %29, label %40

29:                                               ; preds = %22
  %30 = load i64, ptr %8, align 8, !tbaa !5
  %31 = sub nsw i64 0, %30
  store i64 %31, ptr %8, align 8, !tbaa !5
  %32 = load ptr, ptr %6, align 8, !tbaa !9
  %33 = icmp ne ptr %32, null
  br i1 %33, label %34, label %39

34:                                               ; preds = %29
  %35 = load ptr, ptr %6, align 8, !tbaa !9
  %36 = load i64, ptr %35, align 8, !tbaa !5
  %37 = sub nsw i64 0, %36
  %38 = load ptr, ptr %6, align 8, !tbaa !9
  store i64 %37, ptr %38, align 8, !tbaa !5
  br label %39

39:                                               ; preds = %34, %29
  br label %40

40:                                               ; preds = %39, %22
  %41 = load i64, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  ret i64 %41
}

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

; Function Attrs: nounwind uwtable
declare dso_local i64 @udivmoddi4(i64 noundef, i64 noundef, ptr noundef) #0

; 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 }

!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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}


; 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: nounwind uwtable
define dso_local i64 @divmoddi4(i64 noundef %0, i64 noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %spec.select = tail call i64 @llvm.abs.i64(i64 %0, i1 true)
  %.015 = tail call i64 @llvm.abs.i64(i64 %1, i1 true)
  %.lobit25 = xor i64 %1, %0
  %4 = tail call i64 @udivmoddi4(i64 noundef %spec.select, i64 noundef %.015, ptr noundef %2)
  %.not = icmp sgt i64 %.lobit25, -1
  br i1 %.not, label %10, label %5

5:                                                ; preds = %3
  %6 = sub nsw i64 0, %4
  %.not21 = icmp eq ptr %2, null
  br i1 %.not21, label %10, label %7

7:                                                ; preds = %5
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = sub nsw i64 0, %8
  store i64 %9, ptr %2, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %5, %7, %3
  %.0 = phi i64 [ %6, %7 ], [ %6, %5 ], [ %4, %3 ]
  ret i64 %.0
}

; Function Attrs: nounwind uwtable
declare dso_local i64 @udivmoddi4(i64 noundef, i64 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.abs.i64(i64, i1 immarg) #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 speculatable willreturn memory(none) }

!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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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