; 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: nounwind uwtable
define dso_local void @vec_add_scaled(ptr noundef %0, ptr noundef %1, ptr noundef %2, i64 noundef %3, double noundef %4) #0 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca double, align 8
  %11 = alloca i64, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store i64 %3, ptr %9, align 8, !tbaa !9
  store double %4, ptr %10, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  store i64 0, ptr %11, align 8, !tbaa !9
  br label %12

12:                                               ; preds = %30, %5
  %13 = load i64, ptr %11, align 8, !tbaa !9
  %14 = load i64, ptr %9, align 8, !tbaa !9
  %15 = icmp slt i64 %13, %14
  br i1 %15, label %16, label %33

16:                                               ; preds = %12
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = load i64, ptr %11, align 8, !tbaa !9
  %19 = getelementptr inbounds double, ptr %17, i64 %18
  %20 = load double, ptr %19, align 8, !tbaa !11
  %21 = load double, ptr %10, align 8, !tbaa !11
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = load i64, ptr %11, align 8, !tbaa !9
  %24 = getelementptr inbounds double, ptr %22, i64 %23
  %25 = load double, ptr %24, align 8, !tbaa !11
  %26 = call double @llvm.fmuladd.f64(double %21, double %25, double %20)
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load i64, ptr %11, align 8, !tbaa !9
  %29 = getelementptr inbounds double, ptr %27, i64 %28
  store double %26, ptr %29, align 8, !tbaa !11
  br label %30

30:                                               ; preds = %16
  %31 = load i64, ptr %11, align 8, !tbaa !9
  %32 = add nsw i64 %31, 1
  store i64 %32, ptr %11, align 8, !tbaa !9
  br label %12, !llvm.loop !13

33:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  ret void
}

; 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 speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #2

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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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_add_scaled(ptr nocapture noundef writeonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2, i64 noundef %3, double noundef %4) local_unnamed_addr #0 {
  %6 = ptrtoint ptr %2 to i64
  %7 = ptrtoint ptr %1 to i64
  %8 = ptrtoint ptr %0 to i64
  %9 = icmp sgt i64 %3, 0
  br i1 %9, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %5
  %min.iters.check = icmp ult i64 %3, 6
  br i1 %min.iters.check, label %.lr.ph.preheader14, label %vector.memcheck

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %10 = sub i64 %8, %7
  %diff.check = icmp ult i64 %10, 32
  %11 = sub i64 %8, %6
  %diff.check10 = icmp ult i64 %11, 32
  %conflict.rdx = or i1 %diff.check, %diff.check10
  br i1 %conflict.rdx, label %.lr.ph.preheader14, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %3, 9223372036854775804
  %broadcast.splatinsert = insertelement <2 x double> poison, double %4, 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 ]
  %12 = getelementptr inbounds double, ptr %1, i64 %index
  %13 = getelementptr inbounds i8, ptr %12, i64 16
  %wide.load = load <2 x double>, ptr %12, align 8, !tbaa !5
  %wide.load11 = load <2 x double>, ptr %13, align 8, !tbaa !5
  %14 = getelementptr inbounds double, ptr %2, i64 %index
  %15 = getelementptr inbounds i8, ptr %14, i64 16
  %wide.load12 = load <2 x double>, ptr %14, align 8, !tbaa !5
  %wide.load13 = load <2 x double>, ptr %15, align 8, !tbaa !5
  %16 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %broadcast.splat, <2 x double> %wide.load12, <2 x double> %wide.load)
  %17 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %broadcast.splat, <2 x double> %wide.load13, <2 x double> %wide.load11)
  %18 = getelementptr inbounds double, ptr %0, i64 %index
  %19 = getelementptr inbounds i8, ptr %18, i64 16
  store <2 x double> %16, ptr %18, align 8, !tbaa !5
  store <2 x double> %17, ptr %19, align 8, !tbaa !5
  %index.next = add nuw i64 %index, 4
  %20 = icmp eq i64 %index.next, %n.vec
  br i1 %20, 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.preheader14

.lr.ph.preheader14:                               ; preds = %middle.block, %vector.memcheck, %.lr.ph.preheader
  %.09.ph = phi i64 [ 0, %vector.memcheck ], [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %3, 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.preheader14
  %21 = getelementptr inbounds double, ptr %1, i64 %.09.ph
  %22 = load double, ptr %21, align 8, !tbaa !5
  %23 = getelementptr inbounds double, ptr %2, i64 %.09.ph
  %24 = load double, ptr %23, align 8, !tbaa !5
  %25 = tail call double @llvm.fmuladd.f64(double %4, double %24, double %22)
  %26 = getelementptr inbounds double, ptr %0, i64 %.09.ph
  store double %25, ptr %26, align 8, !tbaa !5
  %27 = or disjoint i64 %.09.ph, 1
  br label %.lr.ph.prol.loopexit

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader14
  %.09.unr = phi i64 [ %.09.ph, %.lr.ph.preheader14 ], [ %27, %.lr.ph.prol ]
  %28 = add nsw i64 %3, -1
  %29 = icmp eq i64 %.09.ph, %28
  br i1 %29, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %.09 = phi i64 [ %43, %.lr.ph ], [ %.09.unr, %.lr.ph.prol.loopexit ]
  %30 = getelementptr inbounds double, ptr %1, i64 %.09
  %31 = load double, ptr %30, align 8, !tbaa !5
  %32 = getelementptr inbounds double, ptr %2, i64 %.09
  %33 = load double, ptr %32, align 8, !tbaa !5
  %34 = tail call double @llvm.fmuladd.f64(double %4, double %33, double %31)
  %35 = getelementptr inbounds double, ptr %0, i64 %.09
  store double %34, ptr %35, align 8, !tbaa !5
  %36 = add nuw nsw i64 %.09, 1
  %37 = getelementptr inbounds double, ptr %1, i64 %36
  %38 = load double, ptr %37, align 8, !tbaa !5
  %39 = getelementptr inbounds double, ptr %2, i64 %36
  %40 = load double, ptr %39, align 8, !tbaa !5
  %41 = tail call double @llvm.fmuladd.f64(double %4, double %40, double %38)
  %42 = getelementptr inbounds double, ptr %0, i64 %36
  store double %41, ptr %42, align 8, !tbaa !5
  %43 = add nuw nsw i64 %.09, 2
  %exitcond.not.1 = icmp eq i64 %43, %3
  br i1 %exitcond.not.1, label %._crit_edge, label %.lr.ph, !llvm.loop !13

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

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

; 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 = { 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) }
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: GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass