; LLVM IR from kazulagi/plantFEM :: src/ClangClass (ClangClass)

; 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 @c_dot_product(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, 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 i64 %2, ptr %7, align 8, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %10 = load ptr, ptr %8, align 8, !tbaa !5
  %11 = getelementptr inbounds double, ptr %10, i64 0
  store double 0.000000e+00, ptr %11, align 8, !tbaa !11
  store i64 0, ptr %9, align 8, !tbaa !9
  br label %12

12:                                               ; preds = %31, %4
  %13 = load i64, ptr %9, align 8, !tbaa !9
  %14 = load i64, ptr %7, align 8, !tbaa !9
  %15 = icmp ult i64 %13, %14
  br i1 %15, label %16, label %34

16:                                               ; preds = %12
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  %18 = getelementptr inbounds double, ptr %17, i64 0
  %19 = load double, ptr %18, align 8, !tbaa !11
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load i64, ptr %9, align 8, !tbaa !9
  %22 = getelementptr inbounds double, ptr %20, i64 %21
  %23 = load double, ptr %22, align 8, !tbaa !11
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = load i64, ptr %9, align 8, !tbaa !9
  %26 = getelementptr inbounds double, ptr %24, i64 %25
  %27 = load double, ptr %26, align 8, !tbaa !11
  %28 = call double @llvm.fmuladd.f64(double %23, double %27, double %19)
  %29 = load ptr, ptr %8, align 8, !tbaa !5
  %30 = getelementptr inbounds double, ptr %29, i64 0
  store double %28, ptr %30, align 8, !tbaa !11
  br label %31

31:                                               ; preds = %16
  %32 = load i64, ptr %9, align 8, !tbaa !9
  %33 = add i64 %32, 1
  store i64 %33, ptr %9, align 8, !tbaa !9
  br label %12, !llvm.loop !13

34:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  ret void
}

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

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 = { 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 = !{!"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"

; Function Attrs: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @c_dot_product(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, i64 noundef %2, ptr nocapture noundef writeonly %3) local_unnamed_addr #0 {
  store double 0.000000e+00, ptr %3, align 8, !tbaa !5
  %.not = icmp eq i64 %2, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %4
  %xtraiter = and i64 %2, 3
  %5 = icmp ult i64 %2, 4
  br i1 %5, 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

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %6 = phi double [ 0.000000e+00, %.lr.ph.preheader.new ], [ %29, %.lr.ph ]
  %.09 = phi i64 [ 0, %.lr.ph.preheader.new ], [ %30, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %7 = getelementptr inbounds double, ptr %0, i64 %.09
  %8 = load double, ptr %7, align 8, !tbaa !5
  %9 = getelementptr inbounds double, ptr %1, i64 %.09
  %10 = load double, ptr %9, align 8, !tbaa !5
  %11 = tail call double @llvm.fmuladd.f64(double %8, double %10, double %6)
  store double %11, ptr %3, align 8, !tbaa !5
  %12 = or disjoint i64 %.09, 1
  %13 = getelementptr inbounds double, ptr %0, i64 %12
  %14 = load double, ptr %13, align 8, !tbaa !5
  %15 = getelementptr inbounds double, ptr %1, i64 %12
  %16 = load double, ptr %15, align 8, !tbaa !5
  %17 = tail call double @llvm.fmuladd.f64(double %14, double %16, double %11)
  store double %17, ptr %3, align 8, !tbaa !5
  %18 = or disjoint i64 %.09, 2
  %19 = getelementptr inbounds double, ptr %0, i64 %18
  %20 = load double, ptr %19, align 8, !tbaa !5
  %21 = getelementptr inbounds double, ptr %1, i64 %18
  %22 = load double, ptr %21, align 8, !tbaa !5
  %23 = tail call double @llvm.fmuladd.f64(double %20, double %22, double %17)
  store double %23, ptr %3, align 8, !tbaa !5
  %24 = or disjoint i64 %.09, 3
  %25 = getelementptr inbounds double, ptr %0, i64 %24
  %26 = load double, ptr %25, align 8, !tbaa !5
  %27 = getelementptr inbounds double, ptr %1, i64 %24
  %28 = load double, ptr %27, align 8, !tbaa !5
  %29 = tail call double @llvm.fmuladd.f64(double %26, double %28, double %23)
  store double %29, ptr %3, align 8, !tbaa !5
  %30 = add nuw i64 %.09, 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 !9

._crit_edge.loopexit.unr-lcssa:                   ; preds = %.lr.ph, %.lr.ph.preheader
  %.unr = phi double [ 0.000000e+00, %.lr.ph.preheader ], [ %29, %.lr.ph ]
  %.09.unr = phi i64 [ 0, %.lr.ph.preheader ], [ %30, %.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
  %31 = phi double [ %36, %.lr.ph.epil ], [ %.unr, %._crit_edge.loopexit.unr-lcssa ]
  %.09.epil = phi i64 [ %37, %.lr.ph.epil ], [ %.09.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %32 = getelementptr inbounds double, ptr %0, i64 %.09.epil
  %33 = load double, ptr %32, align 8, !tbaa !5
  %34 = getelementptr inbounds double, ptr %1, i64 %.09.epil
  %35 = load double, ptr %34, align 8, !tbaa !5
  %36 = tail call double @llvm.fmuladd.f64(double %33, double %35, double %31)
  store double %36, ptr %3, align 8, !tbaa !5
  %37 = add nuw i64 %.09.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 !11

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %.lr.ph.epil, %4
  ret void
}

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

attributes #0 = { nofree norecurse nosync nounwind memory(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 nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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.mustprogress"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}


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