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

; 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 { double, double } @__muldc3(double, double, double, double)

; Function Attrs: nounwind uwtable
define dso_local i32 @matrixc_pmul(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
  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 %12

12:                                               ; preds = %57, %5
  %13 = load i32, ptr %11, align 4, !tbaa !9
  %14 = load i32, ptr %9, align 4, !tbaa !9
  %15 = load i32, ptr %10, align 4, !tbaa !9
  %16 = mul i32 %14, %15
  %17 = icmp ult i32 %13, %16
  br i1 %17, label %18, label %60

18:                                               ; preds = %12
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = load i32, ptr %11, align 4, !tbaa !9
  %21 = zext i32 %20 to i64
  %22 = getelementptr inbounds { double, double }, ptr %19, i64 %21
  %23 = getelementptr inbounds { double, double }, ptr %22, i32 0, i32 0
  %24 = load double, ptr %23, align 8
  %25 = getelementptr inbounds { double, double }, ptr %22, i32 0, i32 1
  %26 = load double, ptr %25, align 8
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = load i32, ptr %11, align 4, !tbaa !9
  %29 = zext i32 %28 to i64
  %30 = getelementptr inbounds { double, double }, ptr %27, i64 %29
  %31 = getelementptr inbounds { double, double }, ptr %30, i32 0, i32 0
  %32 = load double, ptr %31, align 8
  %33 = getelementptr inbounds { double, double }, ptr %30, i32 0, i32 1
  %34 = load double, ptr %33, align 8
  %35 = fmul double %24, %32
  %36 = fmul double %26, %34
  %37 = fmul double %24, %34
  %38 = fmul double %26, %32
  %39 = fsub double %35, %36
  %40 = fadd double %37, %38
  %41 = fcmp uno double %39, %39
  br i1 %41, label %42, label %48, !prof !11

42:                                               ; preds = %18
  %43 = fcmp uno double %40, %40
  br i1 %43, label %44, label %48, !prof !11

44:                                               ; preds = %42
  %45 = call { double, double } @__muldc3(double noundef %24, double noundef %26, double noundef %32, double noundef %34) #2
  %46 = extractvalue { double, double } %45, 0
  %47 = extractvalue { double, double } %45, 1
  br label %48

48:                                               ; preds = %44, %42, %18
  %49 = phi double [ %39, %18 ], [ %39, %42 ], [ %46, %44 ]
  %50 = phi double [ %40, %18 ], [ %40, %42 ], [ %47, %44 ]
  %51 = load ptr, ptr %8, align 8, !tbaa !5
  %52 = load i32, ptr %11, align 4, !tbaa !9
  %53 = zext i32 %52 to i64
  %54 = getelementptr inbounds { double, double }, ptr %51, i64 %53
  %55 = getelementptr inbounds { double, double }, ptr %54, i32 0, i32 0
  %56 = getelementptr inbounds { double, double }, ptr %54, i32 0, i32 1
  store double %49, ptr %55, align 8
  store double %50, ptr %56, align 8
  br label %57

57:                                               ; preds = %48
  %58 = load i32, ptr %11, align 4, !tbaa !9
  %59 = add i32 %58, 1
  store i32 %59, ptr %11, align 4, !tbaa !9
  br label %12, !llvm.loop !12

60:                                               ; preds = %12
  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"="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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!"branch_weights", i32 1, i32 1048575}
!12 = distinct !{!12, !13}
!13 = !{!"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 { double, double } @__muldc3(double, double, double, double) local_unnamed_addr

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @matrixc_pmul(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, %29
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %29 ]
  %7 = getelementptr inbounds { double, double }, ptr %0, i64 %indvars.iv
  %8 = getelementptr inbounds { double, double }, ptr %1, i64 %indvars.iv
  %9 = load <2 x double>, ptr %7, align 8
  %10 = load <2 x double>, ptr %8, align 8
  %11 = fmul <2 x double> %9, %10
  %12 = shufflevector <2 x double> %9, <2 x double> poison, <2 x i32> <i32 1, i32 0>
  %13 = fmul <2 x double> %12, %10
  %shift = shufflevector <2 x double> %11, <2 x double> poison, <2 x i32> <i32 1, i32 poison>
  %14 = fsub <2 x double> %11, %shift
  %15 = extractelement <2 x double> %14, i64 0
  %shift11 = shufflevector <2 x double> %13, <2 x double> poison, <2 x i32> <i32 1, i32 poison>
  %16 = fadd <2 x double> %13, %shift11
  %17 = extractelement <2 x double> %16, i64 0
  %18 = fcmp uno double %15, 0.000000e+00
  br i1 %18, label %19, label %29, !prof !5

19:                                               ; preds = %.lr.ph
  %20 = fcmp uno double %17, 0.000000e+00
  br i1 %20, label %21, label %29, !prof !5

21:                                               ; preds = %19
  %22 = extractelement <2 x double> %9, i64 0
  %23 = extractelement <2 x double> %9, i64 1
  %24 = extractelement <2 x double> %10, i64 0
  %25 = extractelement <2 x double> %10, i64 1
  %26 = tail call { double, double } @__muldc3(double noundef %22, double noundef %23, double noundef %24, double noundef %25) #1
  %27 = extractvalue { double, double } %26, 0
  %28 = extractvalue { double, double } %26, 1
  br label %29

29:                                               ; preds = %21, %19, %.lr.ph
  %30 = phi double [ %15, %.lr.ph ], [ %15, %19 ], [ %27, %21 ]
  %31 = phi double [ %17, %.lr.ph ], [ %17, %19 ], [ %28, %21 ]
  %32 = getelementptr inbounds { double, double }, ptr %2, i64 %indvars.iv
  %33 = getelementptr inbounds i8, ptr %32, i64 8
  store double %30, ptr %32, align 8
  store double %31, ptr %33, align 8
  %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 !6

._crit_edge:                                      ; preds = %29, %5
  ret i32 0
}

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 = { 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 = !{!"branch_weights", i32 1, i32 1048575}
!6 = distinct !{!6, !7}
!7 = !{!"llvm.loop.mustprogress"}


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