; LLVM IR from jgaeddert/liquid-dsp :: src/matrix/src (matrixcf)

; 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

declare <2 x float> @__divsc3(float, float, float, float)

; Function Attrs: nounwind uwtable
define dso_local i32 @matrixcf_pdiv(ptr noundef %0, ptr noundef %1, ptr noundef %2, i32 noundef %3, i32 noundef %4) #1 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca { float, float }, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %47, %5
  %14 = load i32, ptr %11, align 4, !tbaa !9
  %15 = load i32, ptr %9, align 4, !tbaa !9
  %16 = load i32, ptr %10, align 4, !tbaa !9
  %17 = mul i32 %15, %16
  %18 = icmp ult i32 %14, %17
  br i1 %18, label %19, label %50

19:                                               ; preds = %13
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = load i32, ptr %11, align 4, !tbaa !9
  %22 = zext i32 %21 to i64
  %23 = getelementptr inbounds { float, float }, ptr %20, i64 %22
  %24 = getelementptr inbounds { float, float }, ptr %23, i32 0, i32 0
  %25 = load float, ptr %24, align 4
  %26 = getelementptr inbounds { float, float }, ptr %23, i32 0, i32 1
  %27 = load float, ptr %26, align 4
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = load i32, ptr %11, align 4, !tbaa !9
  %30 = zext i32 %29 to i64
  %31 = getelementptr inbounds { float, float }, ptr %28, i64 %30
  %32 = getelementptr inbounds { float, float }, ptr %31, i32 0, i32 0
  %33 = load float, ptr %32, align 4
  %34 = getelementptr inbounds { float, float }, ptr %31, i32 0, i32 1
  %35 = load float, ptr %34, align 4
  %36 = call <2 x float> @__divsc3(float noundef %25, float noundef %27, float noundef %33, float noundef %35) #2
  store <2 x float> %36, ptr %12, align 4
  %37 = getelementptr inbounds { float, float }, ptr %12, i32 0, i32 0
  %38 = load float, ptr %37, align 4
  %39 = getelementptr inbounds { float, float }, ptr %12, i32 0, i32 1
  %40 = load float, ptr %39, align 4
  %41 = load ptr, ptr %8, align 8, !tbaa !5
  %42 = load i32, ptr %11, align 4, !tbaa !9
  %43 = zext i32 %42 to i64
  %44 = getelementptr inbounds { float, float }, ptr %41, i64 %43
  %45 = getelementptr inbounds { float, float }, ptr %44, i32 0, i32 0
  %46 = getelementptr inbounds { float, float }, ptr %44, i32 0, i32 1
  store float %38, ptr %45, align 4
  store float %40, ptr %46, align 4
  br label %47

47:                                               ; preds = %19
  %48 = load i32, ptr %11, align 4, !tbaa !9
  %49 = add i32 %48, 1
  store i32 %49, ptr %11, align 4, !tbaa !9
  br label %13, !llvm.loop !11

50:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  ret i32 0
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind uwtable "min-legal-vector-width"="64" "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

declare <2 x float> @__divsc3(float, float, float, float) local_unnamed_addr

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @matrixcf_pdiv(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef writeonly %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #0 {
  %6 = mul i32 %4, %3
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %5
  %wide.trip.count = zext i32 %6 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %7 = getelementptr inbounds { float, float }, ptr %0, i64 %indvars.iv
  %8 = load float, ptr %7, align 4
  %9 = getelementptr inbounds i8, ptr %7, i64 4
  %10 = load float, ptr %9, align 4
  %11 = getelementptr inbounds { float, float }, ptr %1, i64 %indvars.iv
  %12 = load float, ptr %11, align 4
  %13 = getelementptr inbounds i8, ptr %11, i64 4
  %14 = load float, ptr %13, align 4
  %15 = tail call <2 x float> @__divsc3(float noundef %8, float noundef %10, float noundef %12, float noundef %14) #1
  %16 = getelementptr inbounds { float, float }, ptr %2, i64 %indvars.iv
  store <2 x float> %15, ptr %16, align 4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

._crit_edge:                                      ; preds = %.lr.ph, %5
  ret i32 0
}

attributes #0 = { nounwind uwtable "min-legal-vector-width"="64" "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 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass