; LLVM IR from BrunoLevy/learn-fpga :: FemtoRV/FIRMWARE/EXAMPLES (imgui_disco)

; 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
define dso_local void @R(ptr noundef %0, ptr noundef %1, float noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca float, align 4
  %7 = alloca float, align 4
  %8 = alloca float, align 4
  %9 = alloca float, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store float %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %10 = load float, ptr %6, align 4, !tbaa !9
  %11 = fpext float %10 to double
  %12 = call double @sin(double noundef %11) #4
  %13 = fptrunc double %12 to float
  store float %13, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  %14 = load float, ptr %6, align 4, !tbaa !9
  %15 = fpext float %14 to double
  %16 = call double @cos(double noundef %15) #4
  %17 = fptrunc double %16 to float
  store float %17, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %18 = load float, ptr %8, align 4, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load float, ptr %19, align 4, !tbaa !9
  %21 = load float, ptr %7, align 4, !tbaa !9
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = load float, ptr %22, align 4, !tbaa !9
  %24 = fmul float %21, %23
  %25 = fneg float %24
  %26 = call float @llvm.fmuladd.f32(float %18, float %20, float %25)
  store float %26, ptr %9, align 4, !tbaa !9
  %27 = load float, ptr %7, align 4, !tbaa !9
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = load float, ptr %28, align 4, !tbaa !9
  %30 = load float, ptr %8, align 4, !tbaa !9
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = load float, ptr %31, align 4, !tbaa !9
  %33 = fmul float %30, %32
  %34 = call float @llvm.fmuladd.f32(float %27, float %29, float %33)
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  store float %34, ptr %35, align 4, !tbaa !9
  %36 = load float, ptr %9, align 4, !tbaa !9
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  store float %36, ptr %37, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret void
}

; Function Attrs: nounwind
declare double @sin(double noundef) #2

; Function Attrs: nounwind
declare double @cos(double noundef) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #3

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 "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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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 = !{!"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}


; 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 nounwind willreturn memory(write, argmem: readwrite) uwtable
define dso_local void @R(ptr nocapture noundef %0, ptr nocapture noundef %1, float noundef %2) local_unnamed_addr #0 {
  %4 = fpext float %2 to double
  %5 = tail call double @sin(double noundef %4) #3
  %6 = fptrunc double %5 to float
  %7 = tail call double @cos(double noundef %4) #3
  %8 = fptrunc double %7 to float
  %9 = load float, ptr %0, align 4, !tbaa !5
  %10 = load float, ptr %1, align 4, !tbaa !5
  %11 = fneg float %10
  %12 = fmul float %6, %11
  %13 = tail call float @llvm.fmuladd.f32(float %8, float %9, float %12)
  %14 = fmul float %10, %8
  %15 = tail call float @llvm.fmuladd.f32(float %6, float %9, float %14)
  store float %15, ptr %1, align 4, !tbaa !5
  store float %13, ptr %0, align 4, !tbaa !5
  ret void
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @sin(double noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @cos(double noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #2

attributes #0 = { mustprogress nofree nounwind willreturn memory(write, argmem: readwrite) 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 = { mustprogress nofree nounwind willreturn memory(write) "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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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