; LLVM IR from herrkaefer/AccelerateWatch :: AccelerateWatch/Classes/acceleratelib (vectord)

; 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"

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [108 x i8], align 1
@__PRETTY_FUNCTION__.vectord_dot_product = external hidden unnamed_addr constant [67 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #2

; Function Attrs: nounwind uwtable
define dso_local double @vectord_dot_product(ptr noundef %0, ptr noundef %1, i64 noundef %2) #3 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca double, align 8
  %8 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %12

11:                                               ; preds = %3
  br label %13

12:                                               ; preds = %3
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 151, ptr noundef @__PRETTY_FUNCTION__.vectord_dot_product) #4
  unreachable

13:                                               ; preds = %11
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = icmp ne ptr %14, null
  br i1 %15, label %16, label %17

16:                                               ; preds = %13
  br label %18

17:                                               ; preds = %13
  call void @__assert_fail(ptr noundef @.str.3, ptr noundef @.str.1, i32 noundef 152, ptr noundef @__PRETTY_FUNCTION__.vectord_dot_product) #4
  unreachable

18:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  store double 0.000000e+00, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  store i64 0, ptr %8, align 8, !tbaa !9
  br label %19

19:                                               ; preds = %35, %18
  %20 = load i64, ptr %8, align 8, !tbaa !9
  %21 = load i64, ptr %6, align 8, !tbaa !9
  %22 = icmp ult i64 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  br label %38

24:                                               ; preds = %19
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load i64, ptr %8, align 8, !tbaa !9
  %27 = getelementptr inbounds double, ptr %25, i64 %26
  %28 = load double, ptr %27, align 8, !tbaa !11
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = load i64, ptr %8, align 8, !tbaa !9
  %31 = getelementptr inbounds double, ptr %29, i64 %30
  %32 = load double, ptr %31, align 8, !tbaa !11
  %33 = load double, ptr %7, align 8, !tbaa !11
  %34 = call double @llvm.fmuladd.f64(double %28, double %32, double %33)
  store double %34, ptr %7, align 8, !tbaa !11
  br label %35

35:                                               ; preds = %24
  %36 = load i64, ptr %8, align 8, !tbaa !9
  %37 = add i64 %36, 1
  store i64 %37, ptr %8, align 8, !tbaa !9
  br label %19, !llvm.loop !13

38:                                               ; preds = %23
  %39 = load double, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  ret double %39
}

attributes #0 = { noreturn 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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 #4 = { noreturn nounwind }
attributes #5 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !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"

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [108 x i8], align 1
@__PRETTY_FUNCTION__.vectord_dot_product = external hidden unnamed_addr constant [67 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: nounwind uwtable
define dso_local double @vectord_dot_product(ptr noundef readonly %0, ptr noundef readonly %1, i64 noundef %2) local_unnamed_addr #2 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %4, label %5

4:                                                ; preds = %3
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 151, ptr noundef nonnull @__PRETTY_FUNCTION__.vectord_dot_product) #3
  unreachable

5:                                                ; preds = %3
  %.not13 = icmp eq ptr %1, null
  br i1 %.not13, label %7, label %.preheader

.preheader:                                       ; preds = %5
  %.not16 = icmp eq i64 %2, 0
  br i1 %.not16, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %.preheader
  %xtraiter = and i64 %2, 3
  %6 = icmp ult i64 %2, 4
  br i1 %6, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %2, -4
  br label %.lr.ph

7:                                                ; preds = %5
  tail call void @__assert_fail(ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.1, i32 noundef 152, ptr noundef nonnull @__PRETTY_FUNCTION__.vectord_dot_product) #3
  unreachable

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa.ph = phi double [ poison, %.lr.ph.preheader ], [ %36, %.lr.ph ]
  %.015.unr = phi i64 [ 0, %.lr.ph.preheader ], [ %37, %.lr.ph ]
  %.01014.unr = phi double [ 0.000000e+00, %.lr.ph.preheader ], [ %36, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil
  %.015.epil = phi i64 [ %13, %.lr.ph.epil ], [ %.015.unr, %._crit_edge.loopexit.unr-lcssa ]
  %.01014.epil = phi double [ %12, %.lr.ph.epil ], [ %.01014.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %8 = getelementptr inbounds double, ptr %0, i64 %.015.epil
  %9 = load double, ptr %8, align 8, !tbaa !5
  %10 = getelementptr inbounds double, ptr %1, i64 %.015.epil
  %11 = load double, ptr %10, align 8, !tbaa !5
  %12 = tail call double @llvm.fmuladd.f64(double %9, double %11, double %.01014.epil)
  %13 = add nuw i64 %.015.epil, 1
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.lr.ph.epil, !llvm.loop !9

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil, %.preheader
  %.010.lcssa = phi double [ 0.000000e+00, %.preheader ], [ %.lcssa.ph, %._crit_edge.loopexit.unr-lcssa ], [ %12, %.lr.ph.epil ]
  ret double %.010.lcssa

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.015 = phi i64 [ 0, %.lr.ph.preheader.new ], [ %37, %.lr.ph ]
  %.01014 = phi double [ 0.000000e+00, %.lr.ph.preheader.new ], [ %36, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %14 = getelementptr inbounds double, ptr %0, i64 %.015
  %15 = load double, ptr %14, align 8, !tbaa !5
  %16 = getelementptr inbounds double, ptr %1, i64 %.015
  %17 = load double, ptr %16, align 8, !tbaa !5
  %18 = tail call double @llvm.fmuladd.f64(double %15, double %17, double %.01014)
  %19 = or disjoint i64 %.015, 1
  %20 = getelementptr inbounds double, ptr %0, i64 %19
  %21 = load double, ptr %20, align 8, !tbaa !5
  %22 = getelementptr inbounds double, ptr %1, i64 %19
  %23 = load double, ptr %22, align 8, !tbaa !5
  %24 = tail call double @llvm.fmuladd.f64(double %21, double %23, double %18)
  %25 = or disjoint i64 %.015, 2
  %26 = getelementptr inbounds double, ptr %0, i64 %25
  %27 = load double, ptr %26, align 8, !tbaa !5
  %28 = getelementptr inbounds double, ptr %1, i64 %25
  %29 = load double, ptr %28, align 8, !tbaa !5
  %30 = tail call double @llvm.fmuladd.f64(double %27, double %29, double %24)
  %31 = or disjoint i64 %.015, 3
  %32 = getelementptr inbounds double, ptr %0, i64 %31
  %33 = load double, ptr %32, align 8, !tbaa !5
  %34 = getelementptr inbounds double, ptr %1, i64 %31
  %35 = load double, ptr %34, align 8, !tbaa !5
  %36 = tail call double @llvm.fmuladd.f64(double %33, double %35, double %30)
  %37 = add nuw i64 %.015, 4
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph, !llvm.loop !11
}

attributes #0 = { noreturn 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 #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #3 = { noreturn 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.unroll.disable"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass