; LLVM IR from vokegpu/bicudo :: src/util/math.ll (ZN6bicudo13set_framerateEm)

; 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"

@_ZN6bicudo9framerateE = external dso_local global i64, align 8
@_ZN6bicudo15cpu_interval_msE = external dso_local global i64, align 8

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN6bicudo13set_framerateEm(i64 noundef %0) #0 {
  %2 = alloca i64, align 8
  store i64 %0, ptr %2, align 8, !tbaa !5
  %3 = load i64, ptr %2, align 8, !tbaa !5
  store i64 %3, ptr @_ZN6bicudo9framerateE, align 8, !tbaa !5
  %4 = load i64, ptr @_ZN6bicudo9framerateE, align 8, !tbaa !5
  %5 = icmp ult i64 %4, 1
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  br label %15

7:                                                ; preds = %1
  %8 = load i64, ptr @_ZN6bicudo9framerateE, align 8, !tbaa !5
  %9 = icmp ugt i64 %8, 999
  br i1 %9, label %10, label %11

10:                                               ; preds = %7
  br label %13

11:                                               ; preds = %7
  %12 = load i64, ptr @_ZN6bicudo9framerateE, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %11, %10
  %14 = phi i64 [ 999, %10 ], [ %12, %11 ]
  br label %15

15:                                               ; preds = %13, %6
  %16 = phi i64 [ 1, %6 ], [ %14, %13 ]
  %17 = udiv i64 1000, %16
  store i64 %17, ptr @_ZN6bicudo15cpu_interval_msE, align 8, !tbaa !5
  ret void
}

attributes #0 = { mustprogress 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple 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"

@_ZN6bicudo9framerateE = external dso_local local_unnamed_addr global i64, align 8
@_ZN6bicudo15cpu_interval_msE = external dso_local local_unnamed_addr global i64, align 8

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_ZN6bicudo13set_framerateEm(i64 noundef %0) local_unnamed_addr #0 {
  store i64 %0, ptr @_ZN6bicudo9framerateE, align 8, !tbaa !5
  %2 = icmp eq i64 %0, 0
  %3 = tail call i64 @llvm.umin.i64(i64 %0, i64 999)
  %4 = trunc nuw nsw i64 %3 to i16
  %.rhs.trunc = select i1 %2, i16 1, i16 %4
  %5 = udiv i16 1000, %.rhs.trunc
  %.zext = zext nneg i16 %5 to i64
  store i64 %.zext, ptr @_ZN6bicudo15cpu_interval_msE, align 8, !tbaa !5
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.umin.i64(i64, i64) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: none, 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" }
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", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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