; LLVM IR from dartsim/dart :: dart/external/odelcpsolver/matrix.ll (ZN4dart8external3ode13_dVectorScaleEPdPKdi)

; 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 [24 x i8], align 1
@__FUNCTION__._ZN4dart8external3ode13_dVectorScaleEPdPKdi = external hidden unnamed_addr constant [14 x i8], align 1

declare void @_ZN4dart8external3ode6dDebugEiPKcz(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: mustprogress uwtable
define dso_local void @_ZN4dart8external3ode13_dVectorScaleEPdPKdi(ptr noundef %0, ptr noundef %1, i32 noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %16

10:                                               ; preds = %3
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %13, label %16

13:                                               ; preds = %10
  %14 = load i32, ptr %6, align 4, !tbaa !9
  %15 = icmp sge i32 %14, 0
  br i1 %15, label %17, label %16

16:                                               ; preds = %13, %10, %3
  call void (i32, ptr, ...) @_ZN4dart8external3ode6dDebugEiPKcz(i32 noundef 2, ptr noundef @.str, ptr noundef @__FUNCTION__._ZN4dart8external3ode13_dVectorScaleEPdPKdi)
  br label %17

17:                                               ; preds = %16, %13
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %18

18:                                               ; preds = %35, %17
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %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 %7) #3
  br label %38

23:                                               ; preds = %18
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = load i32, ptr %7, align 4, !tbaa !9
  %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 ptr, ptr %4, align 8, !tbaa !5
  %30 = load i32, ptr %7, align 4, !tbaa !9
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds double, ptr %29, i64 %31
  %33 = load double, ptr %32, align 8, !tbaa !11
  %34 = fmul double %33, %28
  store double %34, ptr %32, align 8, !tbaa !11
  br label %35

35:                                               ; preds = %23
  %36 = load i32, ptr %7, align 4, !tbaa !9
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %7, align 4, !tbaa !9
  br label %18, !llvm.loop !13

38:                                               ; preds = %22
  ret void
}

attributes #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !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 [24 x i8], align 1
@__FUNCTION__._ZN4dart8external3ode13_dVectorScaleEPdPKdi = external hidden unnamed_addr constant [14 x i8], align 1

declare void @_ZN4dart8external3ode6dDebugEiPKcz(i32 noundef, ptr noundef, ...) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4dart8external3ode13_dVectorScaleEPdPKdi(ptr noundef %0, ptr noundef readonly %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = icmp ne ptr %0, null
  %5 = icmp ne ptr %1, null
  %or.cond = and i1 %4, %5
  %6 = icmp sgt i32 %2, -1
  %or.cond3 = and i1 %or.cond, %6
  br i1 %or.cond3, label %8, label %7

7:                                                ; preds = %3
  tail call void (i32, ptr, ...) @_ZN4dart8external3ode6dDebugEiPKcz(i32 noundef 2, ptr noundef nonnull @.str, ptr noundef nonnull @__FUNCTION__._ZN4dart8external3ode13_dVectorScaleEPdPKdi)
  br label %8

8:                                                ; preds = %3, %7
  %9 = icmp sgt i32 %2, 0
  br i1 %9, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %8
  %wide.trip.count = zext nneg i32 %2 to i64
  %min.iters.check = icmp ult i32 %2, 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, 3
  %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, %.lr.ph.prol
  %indvars.iv.prol = phi i64 [ %indvars.iv.next.prol, %.lr.ph.prol ], [ %indvars.iv.ph, %.lr.ph.preheader18 ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph.prol ], [ 0, %.lr.ph.preheader18 ]
  %10 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.prol
  %11 = load double, ptr %10, align 8, !tbaa !5
  %12 = getelementptr inbounds double, ptr %0, i64 %indvars.iv.prol
  %13 = load double, ptr %12, align 8, !tbaa !5
  %14 = fmul double %11, %13
  store double %14, ptr %12, align 8, !tbaa !5
  %indvars.iv.next.prol = add nuw nsw i64 %indvars.iv.prol, 1
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol, !llvm.loop !9

.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 ]
  %15 = sub nsw i64 %indvars.iv.ph, %wide.trip.count
  %16 = icmp ugt i64 %15, -4
  br i1 %16, label %._crit_edge, label %.lr.ph

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %17 = shl nuw nsw i64 %wide.trip.count, 3
  %scevgep = getelementptr i8, ptr %0, i64 %17
  %scevgep14 = getelementptr i8, ptr %1, i64 %17
  %bound0 = icmp ugt ptr %scevgep14, %0
  %bound1 = icmp ugt ptr %scevgep, %1
  %found.conflict = and i1 %bound0, %bound1
  br i1 %found.conflict, label %.lr.ph.preheader18, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %wide.trip.count, 2147483644
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %18 = getelementptr inbounds double, ptr %1, i64 %index
  %19 = getelementptr inbounds i8, ptr %18, i64 16
  %wide.load = load <2 x double>, ptr %18, align 8, !tbaa !5, !alias.scope !11
  %wide.load15 = load <2 x double>, ptr %19, align 8, !tbaa !5, !alias.scope !11
  %20 = getelementptr inbounds double, ptr %0, i64 %index
  %21 = getelementptr inbounds i8, ptr %20, i64 16
  %wide.load16 = load <2 x double>, ptr %20, align 8, !tbaa !5, !alias.scope !14, !noalias !11
  %wide.load17 = load <2 x double>, ptr %21, align 8, !tbaa !5, !alias.scope !14, !noalias !11
  %22 = fmul <2 x double> %wide.load, %wide.load16
  %23 = fmul <2 x double> %wide.load15, %wide.load17
  store <2 x double> %22, ptr %20, align 8, !tbaa !5, !alias.scope !14, !noalias !11
  store <2 x double> %23, ptr %21, align 8, !tbaa !5, !alias.scope !14, !noalias !11
  %index.next = add nuw i64 %index, 4
  %24 = icmp eq i64 %index.next, %n.vec
  br i1 %24, label %middle.block, label %vector.body, !llvm.loop !16

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, %8
  ret void

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %.lr.ph ], [ %indvars.iv.unr, %.lr.ph.prol.loopexit ]
  %25 = getelementptr inbounds double, ptr %1, i64 %indvars.iv
  %26 = load double, ptr %25, align 8, !tbaa !5
  %27 = getelementptr inbounds double, ptr %0, i64 %indvars.iv
  %28 = load double, ptr %27, align 8, !tbaa !5
  %29 = fmul double %26, %28
  store double %29, ptr %27, align 8, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %30 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next
  %31 = load double, ptr %30, align 8, !tbaa !5
  %32 = getelementptr inbounds double, ptr %0, i64 %indvars.iv.next
  %33 = load double, ptr %32, align 8, !tbaa !5
  %34 = fmul double %31, %33
  store double %34, ptr %32, align 8, !tbaa !5
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %35 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next.1
  %36 = load double, ptr %35, align 8, !tbaa !5
  %37 = getelementptr inbounds double, ptr %0, i64 %indvars.iv.next.1
  %38 = load double, ptr %37, align 8, !tbaa !5
  %39 = fmul double %36, %38
  store double %39, ptr %37, align 8, !tbaa !5
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %40 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next.2
  %41 = load double, ptr %40, align 8, !tbaa !5
  %42 = getelementptr inbounds double, ptr %0, i64 %indvars.iv.next.2
  %43 = load double, ptr %42, align 8, !tbaa !5
  %44 = fmul double %41, %43
  store double %44, ptr %42, align 8, !tbaa !5
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, %wide.trip.count
  br i1 %exitcond.not.3, label %._crit_edge, label %.lr.ph, !llvm.loop !20
}

attributes #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 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" }

!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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.unroll.disable"}
!11 = !{!12}
!12 = distinct !{!12, !13}
!13 = distinct !{!13, !"LVerDomain"}
!14 = !{!15}
!15 = distinct !{!15, !13}
!16 = distinct !{!16, !17, !18, !19}
!17 = !{!"llvm.loop.mustprogress"}
!18 = !{!"llvm.loop.isvectorized", i32 1}
!19 = !{!"llvm.loop.unroll.runtime.disable"}
!20 = distinct !{!20, !17, !18}


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