; LLVM IR from radualexandrub/Optimization-Algorithms-Find-local-minimum :: 2D_Derivative_NonQuadratic_CostFunctions (Vec_add_coefVec)

; 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 speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #0

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

; Function Attrs: nounwind uwtable
define dso_local void @Vec_add_coefVec(i32 noundef %0, ptr noundef %1, double noundef %2, ptr noundef %3, ptr noundef %4) #2 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca double, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !9
  store double %2, ptr %8, align 8, !tbaa !11
  store ptr %3, ptr %9, align 8, !tbaa !9
  store ptr %4, ptr %10, align 8, !tbaa !9
  %12 = load i32, ptr %6, align 4, !tbaa !5
  %13 = zext i32 %12 to i64
  %14 = load i32, ptr %6, align 4, !tbaa !5
  %15 = zext i32 %14 to i64
  %16 = load i32, ptr %6, align 4, !tbaa !5
  %17 = zext i32 %16 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  store i32 0, ptr %11, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %40, %5
  %19 = load i32, ptr %11, align 4, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %43

23:                                               ; preds = %18
  %24 = load ptr, ptr %7, align 8, !tbaa !9
  %25 = load i32, ptr %11, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds double, ptr %24, i64 %26
  %28 = load double, ptr %27, align 8, !tbaa !11
  %29 = load double, ptr %8, align 8, !tbaa !11
  %30 = load ptr, ptr %9, align 8, !tbaa !9
  %31 = load i32, ptr %11, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds double, ptr %30, i64 %32
  %34 = load double, ptr %33, align 8, !tbaa !11
  %35 = call double @llvm.fmuladd.f64(double %29, double %34, double %28)
  %36 = load ptr, ptr %10, align 8, !tbaa !9
  %37 = load i32, ptr %11, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds double, ptr %36, i64 %38
  store double %35, ptr %39, align 8, !tbaa !11
  br label %40

40:                                               ; preds = %23
  %41 = load i32, ptr %11, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %11, align 4, !tbaa !5
  br label %18, !llvm.loop !13

43:                                               ; preds = %22
  ret void
}

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

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #0

; Function Attrs: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @Vec_add_coefVec(i32 noundef %0, ptr nocapture noundef readonly %1, double noundef %2, ptr nocapture noundef readonly %3, ptr nocapture noundef writeonly %4) local_unnamed_addr #1 {
  %6 = ptrtoint ptr %3 to i64
  %7 = ptrtoint ptr %1 to i64
  %8 = ptrtoint ptr %4 to i64
  %9 = icmp sgt i32 %0, 0
  br i1 %9, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %5
  %wide.trip.count = zext nneg i32 %0 to i64
  %min.iters.check = icmp ult i32 %0, 6
  br i1 %min.iters.check, label %.lr.ph.preheader18, label %vector.memcheck

.lr.ph.preheader18:                               ; preds = %middle.block, %vector.memcheck, %.lr.ph.preheader
  %indvars.iv.ph = phi i64 [ 0, %vector.memcheck ], [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %wide.trip.count, 1
  %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.preheader18
  %10 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.ph
  %11 = load double, ptr %10, align 8, !tbaa !5
  %12 = getelementptr inbounds double, ptr %3, i64 %indvars.iv.ph
  %13 = load double, ptr %12, align 8, !tbaa !5
  %14 = tail call double @llvm.fmuladd.f64(double %2, double %13, double %11)
  %15 = getelementptr inbounds double, ptr %4, i64 %indvars.iv.ph
  store double %14, ptr %15, align 8, !tbaa !5
  %indvars.iv.next.prol = or disjoint i64 %indvars.iv.ph, 1
  br label %.lr.ph.prol.loopexit

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader18
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %.lr.ph.preheader18 ], [ %indvars.iv.next.prol, %.lr.ph.prol ]
  %16 = add nsw i64 %wide.trip.count, -1
  %17 = icmp eq i64 %indvars.iv.ph, %16
  br i1 %17, label %._crit_edge, label %.lr.ph

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %18 = sub i64 %8, %7
  %diff.check = icmp ult i64 %18, 32
  %19 = sub i64 %8, %6
  %diff.check14 = icmp ult i64 %19, 32
  %conflict.rdx = or i1 %diff.check, %diff.check14
  br i1 %conflict.rdx, label %.lr.ph.preheader18, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %wide.trip.count, 2147483644
  %broadcast.splatinsert = insertelement <2 x double> poison, double %2, i64 0
  %broadcast.splat = shufflevector <2 x double> %broadcast.splatinsert, <2 x double> poison, <2 x i32> zeroinitializer
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %20 = getelementptr inbounds double, ptr %1, i64 %index
  %21 = getelementptr inbounds i8, ptr %20, i64 16
  %wide.load = load <2 x double>, ptr %20, align 8, !tbaa !5
  %wide.load15 = load <2 x double>, ptr %21, align 8, !tbaa !5
  %22 = getelementptr inbounds double, ptr %3, i64 %index
  %23 = getelementptr inbounds i8, ptr %22, i64 16
  %wide.load16 = load <2 x double>, ptr %22, align 8, !tbaa !5
  %wide.load17 = load <2 x double>, ptr %23, align 8, !tbaa !5
  %24 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %broadcast.splat, <2 x double> %wide.load16, <2 x double> %wide.load)
  %25 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %broadcast.splat, <2 x double> %wide.load17, <2 x double> %wide.load15)
  %26 = getelementptr inbounds double, ptr %4, i64 %index
  %27 = getelementptr inbounds i8, ptr %26, i64 16
  store <2 x double> %24, ptr %26, align 8, !tbaa !5
  store <2 x double> %25, ptr %27, align 8, !tbaa !5
  %index.next = add nuw i64 %index, 4
  %28 = icmp eq i64 %index.next, %n.vec
  br i1 %28, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader18

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %5
  ret void

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.1, %.lr.ph ], [ %indvars.iv.unr, %.lr.ph.prol.loopexit ]
  %29 = getelementptr inbounds double, ptr %1, i64 %indvars.iv
  %30 = load double, ptr %29, align 8, !tbaa !5
  %31 = getelementptr inbounds double, ptr %3, i64 %indvars.iv
  %32 = load double, ptr %31, align 8, !tbaa !5
  %33 = tail call double @llvm.fmuladd.f64(double %2, double %32, double %30)
  %34 = getelementptr inbounds double, ptr %4, i64 %indvars.iv
  store double %33, ptr %34, align 8, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %35 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next
  %36 = load double, ptr %35, align 8, !tbaa !5
  %37 = getelementptr inbounds double, ptr %3, i64 %indvars.iv.next
  %38 = load double, ptr %37, align 8, !tbaa !5
  %39 = tail call double @llvm.fmuladd.f64(double %2, double %38, double %36)
  %40 = getelementptr inbounds double, ptr %4, i64 %indvars.iv.next
  store double %39, ptr %40, align 8, !tbaa !5
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %exitcond.not.1 = icmp eq i64 %indvars.iv.next.1, %wide.trip.count
  br i1 %exitcond.not.1, label %._crit_edge, label %.lr.ph, !llvm.loop !13
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare <2 x double> @llvm.fmuladd.v2f64(<2 x double>, <2 x double>, <2 x double>) #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { 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 #2 = { 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, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}
!13 = distinct !{!13, !10, !11}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass