; LLVM IR from cvra/robot-software :: motor-control-firmware/src (stream)

; 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.stream_config_t = type { i8, i16, i16 }

; Function Attrs: nounwind uwtable
define dso_local void @stream_set_prescaler(ptr noundef %0, float noundef %1, float noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca float, align 4
  %6 = alloca float, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store float %1, ptr %5, align 4, !tbaa !9
  store float %2, ptr %6, align 4, !tbaa !9
  %7 = load float, ptr %6, align 4, !tbaa !9
  %8 = load float, ptr %5, align 4, !tbaa !9
  %9 = fdiv float %7, %8
  %10 = fpext float %9 to double
  %11 = call double @llvm.nearbyint.f64(double %10)
  %12 = fptoui double %11 to i16
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.stream_config_t, ptr %13, i32 0, i32 1
  store i16 %12, ptr %14, align 2, !tbaa !11
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.stream_config_t, ptr %15, i32 0, i32 1
  %17 = load i16, ptr %16, align 2, !tbaa !11
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.stream_config_t, ptr %18, i32 0, i32 2
  store i16 %17, ptr %19, align 2, !tbaa !15
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.nearbyint.f64(double) #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"float", !7, i64 0}
!11 = !{!12, !14, i64 2}
!12 = !{!"", !13, i64 0, !14, i64 2, !14, i64 4}
!13 = !{!"_Bool", !7, i64 0}
!14 = !{!"short", !7, i64 0}
!15 = !{!12, !14, i64 4}


; 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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @stream_set_prescaler(ptr nocapture noundef writeonly %0, float noundef %1, float noundef %2) local_unnamed_addr #0 {
  %4 = fdiv float %2, %1
  %5 = tail call float @llvm.nearbyint.f32(float %4)
  %6 = fptoui float %5 to i16
  %7 = getelementptr inbounds i8, ptr %0, i64 2
  store i16 %6, ptr %7, align 2, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 4
  store i16 %6, ptr %8, align 2, !tbaa !11
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.nearbyint.f32(float) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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, !10, i64 2}
!6 = !{!"", !7, i64 0, !10, i64 2, !10, i64 4}
!7 = !{!"_Bool", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"short", !8, i64 0}
!11 = !{!6, !10, i64 4}


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