; LLVM IR from Tencent-RoboticsX/jbdl :: src/jbdl/experimental/qpoases/src/Matrices.ll (ZN7qpOASES12SparseMatrix6setValEPKd)

; 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"

%"class.qpOASES::SparseMatrix" = type { ptr, i32, i32, ptr, ptr, ptr, ptr, %"class.qpOASES::Matrix.base" }
%"class.qpOASES::Matrix.base" = type <{ ptr, i32 }>

; 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: mustprogress nounwind uwtable
define dso_local void @_ZN7qpOASES12SparseMatrix6setValEPKd(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef %1) unnamed_addr #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %8 = getelementptr inbounds %"class.qpOASES::SparseMatrix", ptr %7, i32 0, i32 4
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  %10 = getelementptr inbounds %"class.qpOASES::SparseMatrix", ptr %7, i32 0, i32 2
  %11 = load i32, ptr %10, align 4, !tbaa !12
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds i32, ptr %9, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !13
  %15 = sext i32 %14 to i64
  store i64 %15, ptr %5, align 8, !tbaa !14
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  store i64 0, ptr %6, align 8, !tbaa !14
  br label %16

16:                                               ; preds = %30, %2
  %17 = load i64, ptr %6, align 8, !tbaa !14
  %18 = load i64, ptr %5, align 8, !tbaa !14
  %19 = icmp slt i64 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  br label %33

21:                                               ; preds = %16
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = load i64, ptr %6, align 8, !tbaa !14
  %24 = getelementptr inbounds double, ptr %22, i64 %23
  %25 = load double, ptr %24, align 8, !tbaa !16
  %26 = getelementptr inbounds %"class.qpOASES::SparseMatrix", ptr %7, i32 0, i32 6
  %27 = load ptr, ptr %26, align 8, !tbaa !18
  %28 = load i64, ptr %6, align 8, !tbaa !14
  %29 = getelementptr inbounds double, ptr %27, i64 %28
  store double %25, ptr %29, align 8, !tbaa !16
  br label %30

30:                                               ; preds = %21
  %31 = load i64, ptr %6, align 8, !tbaa !14
  %32 = add nsw i64 %31, 1
  store i64 %32, ptr %6, align 8, !tbaa !14
  br label %16, !llvm.loop !19

33:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"_ZTSN7qpOASES12SparseMatrixE", !11, i64 8, !11, i64 12, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 12}
!13 = !{!11, !11, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"long", !7, i64 0}
!16 = !{!17, !17, i64 0}
!17 = !{!"double", !7, i64 0}
!18 = !{!10, !6, i64 40}
!19 = distinct !{!19, !20}
!20 = !{!"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 nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN7qpOASES12SparseMatrix6setValEPKd(ptr nocapture noundef nonnull readonly align 8 dereferenceable(48) %0, ptr nocapture noundef readonly %1) unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 24
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 12
  %6 = load i32, ptr %5, align 4, !tbaa !11
  %7 = sext i32 %6 to i64
  %8 = getelementptr inbounds i32, ptr %4, i64 %7
  %9 = load i32, ptr %8, align 4, !tbaa !12
  %10 = sext i32 %9 to i64
  %11 = icmp sgt i32 %9, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %12 = ptrtoint ptr %1 to i64
  %13 = getelementptr inbounds i8, ptr %0, i64 40
  %14 = load ptr, ptr %13, align 8, !tbaa !13
  %min.iters.check = icmp ult i32 %9, 6
  %15 = ptrtoint ptr %14 to i64
  %16 = sub i64 %15, %12
  %diff.check = icmp ult i64 %16, 32
  %or.cond = select i1 %min.iters.check, i1 true, i1 %diff.check
  br i1 %or.cond, label %scalar.ph.preheader, label %vector.ph

scalar.ph.preheader:                              ; preds = %middle.block, %.lr.ph
  %.06.ph = phi i64 [ 0, %.lr.ph ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %10, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %scalar.ph.prol.loopexit, label %scalar.ph.prol

scalar.ph.prol:                                   ; preds = %scalar.ph.preheader, %scalar.ph.prol
  %.06.prol = phi i64 [ %20, %scalar.ph.prol ], [ %.06.ph, %scalar.ph.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %scalar.ph.prol ], [ 0, %scalar.ph.preheader ]
  %17 = getelementptr inbounds double, ptr %1, i64 %.06.prol
  %18 = load double, ptr %17, align 8, !tbaa !14
  %19 = getelementptr inbounds double, ptr %14, i64 %.06.prol
  store double %18, ptr %19, align 8, !tbaa !14
  %20 = add nuw nsw i64 %.06.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 %scalar.ph.prol.loopexit, label %scalar.ph.prol, !llvm.loop !16

scalar.ph.prol.loopexit:                          ; preds = %scalar.ph.prol, %scalar.ph.preheader
  %.06.unr = phi i64 [ %.06.ph, %scalar.ph.preheader ], [ %20, %scalar.ph.prol ]
  %21 = sub nsw i64 %.06.ph, %10
  %22 = icmp ugt i64 %21, -4
  br i1 %22, label %._crit_edge, label %scalar.ph

vector.ph:                                        ; preds = %.lr.ph
  %n.vec = and i64 %10, 2147483644
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %23 = getelementptr inbounds double, ptr %1, i64 %index
  %24 = getelementptr inbounds i8, ptr %23, i64 16
  %wide.load = load <2 x double>, ptr %23, align 8, !tbaa !14
  %wide.load7 = load <2 x double>, ptr %24, align 8, !tbaa !14
  %25 = getelementptr inbounds double, ptr %14, i64 %index
  %26 = getelementptr inbounds i8, ptr %25, i64 16
  store <2 x double> %wide.load, ptr %25, align 8, !tbaa !14
  store <2 x double> %wide.load7, ptr %26, align 8, !tbaa !14
  %index.next = add nuw i64 %index, 4
  %27 = icmp eq i64 %index.next, %n.vec
  br i1 %27, label %middle.block, label %vector.body, !llvm.loop !18

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %10
  br i1 %cmp.n, label %._crit_edge, label %scalar.ph.preheader

._crit_edge:                                      ; preds = %scalar.ph.prol.loopexit, %scalar.ph, %middle.block, %2
  ret void

scalar.ph:                                        ; preds = %scalar.ph.prol.loopexit, %scalar.ph
  %.06 = phi i64 [ %43, %scalar.ph ], [ %.06.unr, %scalar.ph.prol.loopexit ]
  %28 = getelementptr inbounds double, ptr %1, i64 %.06
  %29 = load double, ptr %28, align 8, !tbaa !14
  %30 = getelementptr inbounds double, ptr %14, i64 %.06
  store double %29, ptr %30, align 8, !tbaa !14
  %31 = add nuw nsw i64 %.06, 1
  %32 = getelementptr inbounds double, ptr %1, i64 %31
  %33 = load double, ptr %32, align 8, !tbaa !14
  %34 = getelementptr inbounds double, ptr %14, i64 %31
  store double %33, ptr %34, align 8, !tbaa !14
  %35 = add nuw nsw i64 %.06, 2
  %36 = getelementptr inbounds double, ptr %1, i64 %35
  %37 = load double, ptr %36, align 8, !tbaa !14
  %38 = getelementptr inbounds double, ptr %14, i64 %35
  store double %37, ptr %38, align 8, !tbaa !14
  %39 = add nuw nsw i64 %.06, 3
  %40 = getelementptr inbounds double, ptr %1, i64 %39
  %41 = load double, ptr %40, align 8, !tbaa !14
  %42 = getelementptr inbounds double, ptr %14, i64 %39
  store double %41, ptr %42, align 8, !tbaa !14
  %43 = add nuw nsw i64 %.06, 4
  %exitcond.not.3 = icmp eq i64 %43, %10
  br i1 %exitcond.not.3, label %._crit_edge, label %scalar.ph, !llvm.loop !22
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) 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, !10, i64 24}
!6 = !{!"_ZTSN7qpOASES12SparseMatrixE", !7, i64 8, !7, i64 12, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 12}
!12 = !{!7, !7, i64 0}
!13 = !{!6, !10, i64 40}
!14 = !{!15, !15, i64 0}
!15 = !{!"double", !8, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.unroll.disable"}
!18 = distinct !{!18, !19, !20, !21}
!19 = !{!"llvm.loop.mustprogress"}
!20 = !{!"llvm.loop.isvectorized", i32 1}
!21 = !{!"llvm.loop.unroll.runtime.disable"}
!22 = distinct !{!22, !19, !20}


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