; LLVM IR from Stephane-D/SGDK :: src (maths)

; 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: alwaysinline nounwind uwtable
define dso_local signext i16 @F16_normalizeAngle(i16 noundef signext %0) #1 {
  %2 = alloca i16, align 2
  %3 = alloca i16, align 2
  %4 = alloca i16, align 2
  store i16 %0, ptr %3, align 2, !tbaa !5
  %5 = load i16, ptr %3, align 2, !tbaa !5
  %6 = sext i16 %5 to i32
  %7 = icmp sge i32 %6, 0
  br i1 %7, label %8, label %14

8:                                                ; preds = %1
  %9 = load i16, ptr %3, align 2, !tbaa !5
  %10 = sext i16 %9 to i32
  %11 = icmp slt i32 %10, 23040
  br i1 %11, label %12, label %14

12:                                               ; preds = %8
  %13 = load i16, ptr %3, align 2, !tbaa !5
  store i16 %13, ptr %2, align 2
  br label %29

14:                                               ; preds = %8, %1
  call void @llvm.lifetime.start.p0(i64 2, ptr %4) #2
  %15 = load i16, ptr %3, align 2, !tbaa !5
  %16 = sext i16 %15 to i32
  %17 = srem i32 %16, 23040
  %18 = trunc i32 %17 to i16
  store i16 %18, ptr %4, align 2, !tbaa !5
  %19 = load i16, ptr %4, align 2, !tbaa !5
  %20 = sext i16 %19 to i32
  %21 = icmp slt i32 %20, 0
  br i1 %21, label %22, label %27

22:                                               ; preds = %14
  %23 = load i16, ptr %4, align 2, !tbaa !5
  %24 = sext i16 %23 to i32
  %25 = add nsw i32 %24, 23040
  %26 = trunc i32 %25 to i16
  store i16 %26, ptr %4, align 2, !tbaa !5
  br label %27

27:                                               ; preds = %22, %14
  %28 = load i16, ptr %4, align 2, !tbaa !5
  store i16 %28, ptr %2, align 2
  call void @llvm.lifetime.end.p0(i64 2, ptr %4) #2
  br label %29

29:                                               ; preds = %27, %12
  %30 = load i16, ptr %2, align 2
  ret i16 %30
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { alwaysinline 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 = !{!"short", !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: alwaysinline mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local signext i16 @F16_normalizeAngle(i16 noundef signext %0) local_unnamed_addr #0 {
  %or.cond = icmp ult i16 %0, 23040
  br i1 %or.cond, label %6, label %2

2:                                                ; preds = %1
  %3 = srem i16 %0, 23040
  %4 = icmp slt i16 %3, 0
  %5 = add nsw i16 %3, 23040
  %.0 = select i1 %4, i16 %5, i16 %3
  br label %6

6:                                                ; preds = %1, %2
  %.010 = phi i16 [ %.0, %2 ], [ %0, %1 ]
  ret i16 %.010
}

attributes #0 = { alwaysinline mustprogress nofree norecurse nosync nounwind willreturn memory(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)"}


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