; LLVM IR from software-mansion/react-native-audio-api :: packages/react-native-audio-api/common/cpp/audioapi/dsp (VectorMath)

; 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: mustprogress nounwind uwtable
define dso_local void @_ZN8audioapi3dsp8subtractEPKfS2_Pfm(ptr noundef %0, ptr noundef %1, ptr noundef %2, i64 noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i64 %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %10 = load i64, ptr %8, align 8, !tbaa !9
  store i64 %10, ptr %9, align 8, !tbaa !9
  br label %11

11:                                               ; preds = %15, %4
  %12 = load i64, ptr %9, align 8, !tbaa !9
  %13 = add i64 %12, -1
  store i64 %13, ptr %9, align 8, !tbaa !9
  %14 = icmp ne i64 %12, 0
  br i1 %14, label %15, label %28

15:                                               ; preds = %11
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load float, ptr %16, align 4, !tbaa !11
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = load float, ptr %18, align 4, !tbaa !11
  %20 = fsub float %17, %19
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  store float %20, ptr %21, align 4, !tbaa !11
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds float, ptr %22, i32 1
  store ptr %23, ptr %5, align 8, !tbaa !5
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds float, ptr %24, i32 1
  store ptr %25, ptr %6, align 8, !tbaa !5
  %26 = load ptr, ptr %7, align 8, !tbaa !5
  %27 = getelementptr inbounds float, ptr %26, i32 1
  store ptr %27, ptr %7, align 8, !tbaa !5
  br label %11, !llvm.loop !13

28:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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" }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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 memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN8audioapi3dsp8subtractEPKfS2_Pfm(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef writeonly %2, i64 noundef %3) local_unnamed_addr #0 {
  %5 = ptrtoint ptr %1 to i64
  %6 = ptrtoint ptr %0 to i64
  %7 = ptrtoint ptr %2 to i64
  %.not10 = icmp eq i64 %3, 0
  br i1 %.not10, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %4
  %min.iters.check = icmp ult i64 %3, 8
  br i1 %min.iters.check, label %.lr.ph.preheader32, label %vector.memcheck

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %8 = sub i64 %7, %6
  %diff.check = icmp ult i64 %8, 32
  %9 = sub i64 %7, %5
  %diff.check15 = icmp ult i64 %9, 32
  %conflict.rdx = or i1 %diff.check, %diff.check15
  br i1 %conflict.rdx, label %.lr.ph.preheader32, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %3, -8
  %ind.end = and i64 %3, 7
  %10 = shl i64 %n.vec, 2
  %ind.end16 = getelementptr i8, ptr %0, i64 %10
  %11 = shl i64 %n.vec, 2
  %ind.end18 = getelementptr i8, ptr %2, i64 %11
  %12 = shl i64 %n.vec, 2
  %ind.end20 = getelementptr i8, ptr %1, i64 %12
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %offset.idx = shl i64 %index, 2
  %next.gep = getelementptr i8, ptr %0, i64 %offset.idx
  %offset.idx23 = shl i64 %index, 2
  %next.gep24 = getelementptr i8, ptr %2, i64 %offset.idx23
  %offset.idx26 = shl i64 %index, 2
  %next.gep27 = getelementptr i8, ptr %1, i64 %offset.idx26
  %13 = getelementptr i8, ptr %next.gep, i64 16
  %wide.load = load <4 x float>, ptr %next.gep, align 4, !tbaa !5
  %wide.load29 = load <4 x float>, ptr %13, align 4, !tbaa !5
  %14 = getelementptr i8, ptr %next.gep27, i64 16
  %wide.load30 = load <4 x float>, ptr %next.gep27, align 4, !tbaa !5
  %wide.load31 = load <4 x float>, ptr %14, align 4, !tbaa !5
  %15 = fsub <4 x float> %wide.load, %wide.load30
  %16 = fsub <4 x float> %wide.load29, %wide.load31
  %17 = getelementptr i8, ptr %next.gep24, i64 16
  store <4 x float> %15, ptr %next.gep24, align 4, !tbaa !5
  store <4 x float> %16, ptr %17, align 4, !tbaa !5
  %index.next = add nuw i64 %index, 8
  %18 = icmp eq i64 %index.next, %n.vec
  br i1 %18, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %3
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader32

.lr.ph.preheader32:                               ; preds = %middle.block, %vector.memcheck, %.lr.ph.preheader
  %.014.ph = phi i64 [ %3, %vector.memcheck ], [ %3, %.lr.ph.preheader ], [ %ind.end, %middle.block ]
  %.0713.ph = phi ptr [ %0, %vector.memcheck ], [ %0, %.lr.ph.preheader ], [ %ind.end16, %middle.block ]
  %.0812.ph = phi ptr [ %2, %vector.memcheck ], [ %2, %.lr.ph.preheader ], [ %ind.end18, %middle.block ]
  %.0911.ph = phi ptr [ %1, %vector.memcheck ], [ %1, %.lr.ph.preheader ], [ %ind.end20, %middle.block ]
  %19 = add i64 %.014.ph, -1
  %xtraiter = and i64 %.014.ph, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol

.lr.ph.prol:                                      ; preds = %.lr.ph.preheader32, %.lr.ph.prol
  %.014.prol = phi i64 [ %20, %.lr.ph.prol ], [ %.014.ph, %.lr.ph.preheader32 ]
  %.0713.prol = phi ptr [ %24, %.lr.ph.prol ], [ %.0713.ph, %.lr.ph.preheader32 ]
  %.0812.prol = phi ptr [ %26, %.lr.ph.prol ], [ %.0812.ph, %.lr.ph.preheader32 ]
  %.0911.prol = phi ptr [ %25, %.lr.ph.prol ], [ %.0911.ph, %.lr.ph.preheader32 ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph.prol ], [ 0, %.lr.ph.preheader32 ]
  %20 = add i64 %.014.prol, -1
  %21 = load float, ptr %.0713.prol, align 4, !tbaa !5
  %22 = load float, ptr %.0911.prol, align 4, !tbaa !5
  %23 = fsub float %21, %22
  store float %23, ptr %.0812.prol, align 4, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %.0713.prol, i64 4
  %25 = getelementptr inbounds i8, ptr %.0911.prol, i64 4
  %26 = getelementptr inbounds i8, ptr %.0812.prol, i64 4
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol, !llvm.loop !13

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader32
  %.014.unr = phi i64 [ %.014.ph, %.lr.ph.preheader32 ], [ %20, %.lr.ph.prol ]
  %.0713.unr = phi ptr [ %.0713.ph, %.lr.ph.preheader32 ], [ %24, %.lr.ph.prol ]
  %.0812.unr = phi ptr [ %.0812.ph, %.lr.ph.preheader32 ], [ %26, %.lr.ph.prol ]
  %.0911.unr = phi ptr [ %.0911.ph, %.lr.ph.preheader32 ], [ %25, %.lr.ph.prol ]
  %27 = icmp ult i64 %19, 3
  br i1 %27, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %.014 = phi i64 [ %46, %.lr.ph ], [ %.014.unr, %.lr.ph.prol.loopexit ]
  %.0713 = phi ptr [ %50, %.lr.ph ], [ %.0713.unr, %.lr.ph.prol.loopexit ]
  %.0812 = phi ptr [ %52, %.lr.ph ], [ %.0812.unr, %.lr.ph.prol.loopexit ]
  %.0911 = phi ptr [ %51, %.lr.ph ], [ %.0911.unr, %.lr.ph.prol.loopexit ]
  %28 = load float, ptr %.0713, align 4, !tbaa !5
  %29 = load float, ptr %.0911, align 4, !tbaa !5
  %30 = fsub float %28, %29
  store float %30, ptr %.0812, align 4, !tbaa !5
  %31 = getelementptr inbounds i8, ptr %.0713, i64 4
  %32 = getelementptr inbounds i8, ptr %.0911, i64 4
  %33 = getelementptr inbounds i8, ptr %.0812, i64 4
  %34 = load float, ptr %31, align 4, !tbaa !5
  %35 = load float, ptr %32, align 4, !tbaa !5
  %36 = fsub float %34, %35
  store float %36, ptr %33, align 4, !tbaa !5
  %37 = getelementptr inbounds i8, ptr %.0713, i64 8
  %38 = getelementptr inbounds i8, ptr %.0911, i64 8
  %39 = getelementptr inbounds i8, ptr %.0812, i64 8
  %40 = load float, ptr %37, align 4, !tbaa !5
  %41 = load float, ptr %38, align 4, !tbaa !5
  %42 = fsub float %40, %41
  store float %42, ptr %39, align 4, !tbaa !5
  %43 = getelementptr inbounds i8, ptr %.0713, i64 12
  %44 = getelementptr inbounds i8, ptr %.0911, i64 12
  %45 = getelementptr inbounds i8, ptr %.0812, i64 12
  %46 = add i64 %.014, -4
  %47 = load float, ptr %43, align 4, !tbaa !5
  %48 = load float, ptr %44, align 4, !tbaa !5
  %49 = fsub float %47, %48
  store float %49, ptr %45, align 4, !tbaa !5
  %50 = getelementptr inbounds i8, ptr %.0713, i64 16
  %51 = getelementptr inbounds i8, ptr %.0911, i64 16
  %52 = getelementptr inbounds i8, ptr %.0812, i64 16
  %.not.3 = icmp eq i64 %46, 0
  br i1 %.not.3, label %._crit_edge, label %.lr.ph, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %4
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(readwrite, 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" }

!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++ TBAA"}
!9 = distinct !{!9, !10, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.unroll.disable"}
!15 = distinct !{!15, !10, !11}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass