; LLVM IR from Derek-TH-Wang/quadruped_ctrl :: src/osqp/src (lin_alg)

; 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 @vec_ew_prod(ptr noundef %0, ptr noundef %1, ptr noundef %2, i64 noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, 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 ptr %2, ptr %7, align 8, !tbaa !5
  store i64 %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  store i64 0, ptr %9, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %27, %4
  %11 = load i64, ptr %9, align 8, !tbaa !9
  %12 = load i64, ptr %8, align 8, !tbaa !9
  %13 = icmp slt i64 %11, %12
  br i1 %13, label %14, label %30

14:                                               ; preds = %10
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = load i64, ptr %9, align 8, !tbaa !9
  %17 = getelementptr inbounds double, ptr %15, i64 %16
  %18 = load double, ptr %17, align 8, !tbaa !11
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i64, ptr %9, align 8, !tbaa !9
  %21 = getelementptr inbounds double, ptr %19, i64 %20
  %22 = load double, ptr %21, align 8, !tbaa !11
  %23 = fmul double %18, %22
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = load i64, ptr %9, align 8, !tbaa !9
  %26 = getelementptr inbounds double, ptr %24, i64 %25
  store double %23, ptr %26, align 8, !tbaa !11
  br label %27

27:                                               ; preds = %14
  %28 = load i64, ptr %9, align 8, !tbaa !9
  %29 = add nsw i64 %28, 1
  store i64 %29, ptr %9, align 8, !tbaa !9
  br label %10, !llvm.loop !13

30:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  ret void
}

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 = { 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 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 @vec_ew_prod(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef writeonly %2, i64 noundef %3) local_unnamed_addr #0 {
  %5 = ptrtoint ptr %0 to i64
  %6 = ptrtoint ptr %1 to i64
  %7 = ptrtoint ptr %2 to i64
  %8 = icmp sgt i64 %3, 0
  br i1 %8, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %4
  %min.iters.check = icmp ult i64 %3, 8
  br i1 %min.iters.check, label %.lr.ph.preheader13, label %vector.memcheck

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %9 = sub i64 %7, %6
  %diff.check = icmp ult i64 %9, 32
  %10 = sub i64 %7, %5
  %diff.check9 = icmp ult i64 %10, 32
  %conflict.rdx = or i1 %diff.check, %diff.check9
  br i1 %conflict.rdx, label %.lr.ph.preheader13, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %3, 9223372036854775804
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %11 = getelementptr inbounds double, ptr %1, i64 %index
  %12 = getelementptr inbounds i8, ptr %11, i64 16
  %wide.load = load <2 x double>, ptr %11, align 8, !tbaa !5
  %wide.load10 = load <2 x double>, ptr %12, align 8, !tbaa !5
  %13 = getelementptr inbounds double, ptr %0, i64 %index
  %14 = getelementptr inbounds i8, ptr %13, i64 16
  %wide.load11 = load <2 x double>, ptr %13, align 8, !tbaa !5
  %wide.load12 = load <2 x double>, ptr %14, align 8, !tbaa !5
  %15 = fmul <2 x double> %wide.load, %wide.load11
  %16 = fmul <2 x double> %wide.load10, %wide.load12
  %17 = getelementptr inbounds double, ptr %2, i64 %index
  %18 = getelementptr inbounds i8, ptr %17, i64 16
  store <2 x double> %15, ptr %17, align 8, !tbaa !5
  store <2 x double> %16, ptr %18, align 8, !tbaa !5
  %index.next = add nuw i64 %index, 4
  %19 = icmp eq i64 %index.next, %n.vec
  br i1 %19, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %3
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader13

.lr.ph.preheader13:                               ; preds = %middle.block, %vector.memcheck, %.lr.ph.preheader
  %.08.ph = phi i64 [ 0, %vector.memcheck ], [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %3, 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.preheader13, %.lr.ph.prol
  %.08.prol = phi i64 [ %26, %.lr.ph.prol ], [ %.08.ph, %.lr.ph.preheader13 ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph.prol ], [ 0, %.lr.ph.preheader13 ]
  %20 = getelementptr inbounds double, ptr %1, i64 %.08.prol
  %21 = load double, ptr %20, align 8, !tbaa !5
  %22 = getelementptr inbounds double, ptr %0, i64 %.08.prol
  %23 = load double, ptr %22, align 8, !tbaa !5
  %24 = fmul double %21, %23
  %25 = getelementptr inbounds double, ptr %2, i64 %.08.prol
  store double %24, ptr %25, align 8, !tbaa !5
  %26 = add nuw nsw i64 %.08.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 !13

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader13
  %.08.unr = phi i64 [ %.08.ph, %.lr.ph.preheader13 ], [ %26, %.lr.ph.prol ]
  %27 = sub nsw i64 %.08.ph, %3
  %28 = icmp ugt i64 %27, -4
  br i1 %28, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %.08 = phi i64 [ %56, %.lr.ph ], [ %.08.unr, %.lr.ph.prol.loopexit ]
  %29 = getelementptr inbounds double, ptr %1, i64 %.08
  %30 = load double, ptr %29, align 8, !tbaa !5
  %31 = getelementptr inbounds double, ptr %0, i64 %.08
  %32 = load double, ptr %31, align 8, !tbaa !5
  %33 = fmul double %30, %32
  %34 = getelementptr inbounds double, ptr %2, i64 %.08
  store double %33, ptr %34, align 8, !tbaa !5
  %35 = add nuw nsw i64 %.08, 1
  %36 = getelementptr inbounds double, ptr %1, i64 %35
  %37 = load double, ptr %36, align 8, !tbaa !5
  %38 = getelementptr inbounds double, ptr %0, i64 %35
  %39 = load double, ptr %38, align 8, !tbaa !5
  %40 = fmul double %37, %39
  %41 = getelementptr inbounds double, ptr %2, i64 %35
  store double %40, ptr %41, align 8, !tbaa !5
  %42 = add nuw nsw i64 %.08, 2
  %43 = getelementptr inbounds double, ptr %1, i64 %42
  %44 = load double, ptr %43, align 8, !tbaa !5
  %45 = getelementptr inbounds double, ptr %0, i64 %42
  %46 = load double, ptr %45, align 8, !tbaa !5
  %47 = fmul double %44, %46
  %48 = getelementptr inbounds double, ptr %2, i64 %42
  store double %47, ptr %48, align 8, !tbaa !5
  %49 = add nuw nsw i64 %.08, 3
  %50 = getelementptr inbounds double, ptr %1, i64 %49
  %51 = load double, ptr %50, align 8, !tbaa !5
  %52 = getelementptr inbounds double, ptr %0, i64 %49
  %53 = load double, ptr %52, align 8, !tbaa !5
  %54 = fmul double %51, %53
  %55 = getelementptr inbounds double, ptr %2, i64 %49
  store double %54, ptr %55, align 8, !tbaa !5
  %56 = add nuw nsw i64 %.08, 4
  %exitcond.not.3 = icmp eq i64 %56, %3
  br i1 %exitcond.not.3, label %._crit_edge, label %.lr.ph, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %4
  ret void
}

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" }

!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, !14}
!14 = !{!"llvm.loop.unroll.disable"}
!15 = distinct !{!15, !10, !11}


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