; LLVM IR from ESPboy-edu/ESPboy_tinyphysicsengine :: programs (hello)

; 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: 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

; Function Attrs: nounwind uwtable
declare dso_local i32 @TPE_atan(i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @TPE_vec2Angle(i32 noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !5
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = icmp ne i32 %6, 0
  br i1 %7, label %8, label %27

8:                                                ; preds = %2
  %9 = load i32, ptr %4, align 4, !tbaa !5
  %10 = mul nsw i32 %9, 512
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = sdiv i32 %10, %11
  %13 = call i32 @TPE_atan(i32 noundef %12)
  store i32 %13, ptr %5, align 4, !tbaa !5
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = icmp slt i32 %14, 0
  br i1 %15, label %16, label %19

16:                                               ; preds = %8
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = add nsw i32 %17, 256
  store i32 %18, ptr %5, align 4, !tbaa !5
  br label %26

19:                                               ; preds = %8
  %20 = load i32, ptr %5, align 4, !tbaa !5
  %21 = icmp slt i32 %20, 0
  br i1 %21, label %22, label %25

22:                                               ; preds = %19
  %23 = load i32, ptr %5, align 4, !tbaa !5
  %24 = add nsw i32 %23, 512
  store i32 %24, ptr %5, align 4, !tbaa !5
  br label %25

25:                                               ; preds = %22, %19
  br label %26

26:                                               ; preds = %25, %16
  br label %37

27:                                               ; preds = %2
  %28 = load i32, ptr %4, align 4, !tbaa !5
  %29 = icmp slt i32 %28, 0
  br i1 %29, label %30, label %31

30:                                               ; preds = %27
  store i32 384, ptr %5, align 4, !tbaa !5
  br label %36

31:                                               ; preds = %27
  %32 = load i32, ptr %4, align 4, !tbaa !5
  %33 = icmp sgt i32 %32, 0
  br i1 %33, label %34, label %35

34:                                               ; preds = %31
  store i32 128, ptr %5, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %34, %31
  br label %36

36:                                               ; preds = %35, %30
  br label %37

37:                                               ; preds = %36, %26
  %38 = load i32, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; 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
declare dso_local i32 @TPE_atan(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 -2147483392, -2147483648) i32 @TPE_vec2Angle(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %.not = icmp eq i32 %0, 0
  br i1 %.not, label %13, label %3

3:                                                ; preds = %2
  %4 = shl nsw i32 %1, 9
  %5 = sdiv i32 %4, %0
  %6 = tail call i32 @TPE_atan(i32 noundef %5)
  %7 = icmp slt i32 %0, 0
  br i1 %7, label %8, label %10

8:                                                ; preds = %3
  %9 = add nsw i32 %6, 256
  br label %16

10:                                               ; preds = %3
  %11 = lshr i32 %6, 22
  %12 = and i32 %11, 512
  %spec.select = add i32 %12, %6
  br label %16

13:                                               ; preds = %2
  %14 = icmp slt i32 %1, 0
  br i1 %14, label %16, label %15

15:                                               ; preds = %13
  %.not13 = icmp eq i32 %1, 0
  %spec.select14 = select i1 %.not13, i32 0, i32 128
  br label %16

16:                                               ; preds = %15, %10, %13, %8
  %.0 = phi i32 [ %9, %8 ], [ %spec.select, %10 ], [ 384, %13 ], [ %spec.select14, %15 ]
  ret i32 %.0
}

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)"}


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