; LLVM IR from codee-com/open-catalog :: Checks/PWD009 (example-omp)

; 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 @example(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca double, align 8
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  store i32 0, ptr %9, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %39, %4
  %12 = load i32, ptr %9, align 4, !tbaa !5
  %13 = load i32, ptr %5, align 4, !tbaa !5
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  br label %42

16:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #2
  %17 = load ptr, ptr %6, align 8, !tbaa !9
  %18 = load i32, ptr %9, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds double, ptr %17, i64 %19
  %21 = load double, ptr %20, align 8, !tbaa !11
  %22 = load ptr, ptr %7, align 8, !tbaa !9
  %23 = load i32, ptr %9, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds double, ptr %22, i64 %24
  %26 = load double, ptr %25, align 8, !tbaa !11
  %27 = fmul double %21, %26
  store double %27, ptr %10, align 8, !tbaa !11
  %28 = load ptr, ptr %8, align 8, !tbaa !9
  %29 = load i32, ptr %9, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds double, ptr %28, i64 %30
  %32 = load double, ptr %31, align 8, !tbaa !11
  %33 = load double, ptr %10, align 8, !tbaa !11
  %34 = fadd double %32, %33
  %35 = load ptr, ptr %8, align 8, !tbaa !9
  %36 = load i32, ptr %9, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds double, ptr %35, i64 %37
  store double %34, ptr %38, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  br label %39

39:                                               ; preds = %16
  %40 = load i32, ptr %9, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %9, align 4, !tbaa !5
  br label %11, !llvm.loop !13

42:                                               ; preds = %15
  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 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 = { 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: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @example(i32 noundef %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2, ptr nocapture noundef %3) local_unnamed_addr #0 {
  %5 = icmp sgt i32 %0, 0
  br i1 %5, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %4
  %wide.trip.count = zext nneg i32 %0 to i64
  %min.iters.check = icmp ult i32 %0, 8
  br i1 %min.iters.check, label %.lr.ph.preheader23, label %vector.memcheck

.lr.ph.preheader23:                               ; 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.preheader23
  %6 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.ph
  %7 = load double, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds double, ptr %2, i64 %indvars.iv.ph
  %9 = load double, ptr %8, align 8, !tbaa !5
  %10 = fmul double %7, %9
  %11 = getelementptr inbounds double, ptr %3, i64 %indvars.iv.ph
  %12 = load double, ptr %11, align 8, !tbaa !5
  %13 = fadd double %12, %10
  store double %13, ptr %11, 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.preheader23
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %.lr.ph.preheader23 ], [ %indvars.iv.next.prol, %.lr.ph.prol ]
  %14 = add nsw i64 %wide.trip.count, -1
  %15 = icmp eq i64 %indvars.iv.ph, %14
  br i1 %15, label %._crit_edge, label %.lr.ph

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %16 = shl nuw nsw i64 %wide.trip.count, 3
  %scevgep = getelementptr i8, ptr %3, i64 %16
  %scevgep13 = getelementptr i8, ptr %1, i64 %16
  %scevgep14 = getelementptr i8, ptr %2, i64 %16
  %bound0 = icmp ugt ptr %scevgep13, %3
  %bound1 = icmp ugt ptr %scevgep, %1
  %found.conflict = and i1 %bound0, %bound1
  %bound015 = icmp ugt ptr %scevgep14, %3
  %bound116 = icmp ugt ptr %scevgep, %2
  %found.conflict17 = and i1 %bound015, %bound116
  %conflict.rdx = or i1 %found.conflict, %found.conflict17
  br i1 %conflict.rdx, label %.lr.ph.preheader23, 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 ]
  %17 = getelementptr inbounds double, ptr %1, i64 %index
  %18 = getelementptr inbounds i8, ptr %17, i64 16
  %wide.load = load <2 x double>, ptr %17, align 8, !tbaa !5, !alias.scope !9
  %wide.load18 = load <2 x double>, ptr %18, align 8, !tbaa !5, !alias.scope !9
  %19 = getelementptr inbounds double, ptr %2, i64 %index
  %20 = getelementptr inbounds i8, ptr %19, i64 16
  %wide.load19 = load <2 x double>, ptr %19, align 8, !tbaa !5, !alias.scope !12
  %wide.load20 = load <2 x double>, ptr %20, align 8, !tbaa !5, !alias.scope !12
  %21 = fmul <2 x double> %wide.load, %wide.load19
  %22 = fmul <2 x double> %wide.load18, %wide.load20
  %23 = getelementptr inbounds double, ptr %3, i64 %index
  %24 = getelementptr inbounds i8, ptr %23, i64 16
  %wide.load21 = load <2 x double>, ptr %23, align 8, !tbaa !5, !alias.scope !14, !noalias !16
  %wide.load22 = load <2 x double>, ptr %24, align 8, !tbaa !5, !alias.scope !14, !noalias !16
  %25 = fadd <2 x double> %wide.load21, %21
  %26 = fadd <2 x double> %wide.load22, %22
  store <2 x double> %25, ptr %23, align 8, !tbaa !5, !alias.scope !14, !noalias !16
  store <2 x double> %26, ptr %24, align 8, !tbaa !5, !alias.scope !14, !noalias !16
  %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 !17

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.preheader23

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %4
  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 ]
  %28 = getelementptr inbounds double, ptr %1, i64 %indvars.iv
  %29 = load double, ptr %28, align 8, !tbaa !5
  %30 = getelementptr inbounds double, ptr %2, i64 %indvars.iv
  %31 = load double, ptr %30, align 8, !tbaa !5
  %32 = fmul double %29, %31
  %33 = getelementptr inbounds double, ptr %3, i64 %indvars.iv
  %34 = load double, ptr %33, align 8, !tbaa !5
  %35 = fadd double %34, %32
  store double %35, ptr %33, align 8, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %36 = getelementptr inbounds double, ptr %1, i64 %indvars.iv.next
  %37 = load double, ptr %36, align 8, !tbaa !5
  %38 = getelementptr inbounds double, ptr %2, i64 %indvars.iv.next
  %39 = load double, ptr %38, align 8, !tbaa !5
  %40 = fmul double %37, %39
  %41 = getelementptr inbounds double, ptr %3, i64 %indvars.iv.next
  %42 = load double, ptr %41, align 8, !tbaa !5
  %43 = fadd double %42, %40
  store double %43, ptr %41, 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 !21
}

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 = !{!10}
!10 = distinct !{!10, !11}
!11 = distinct !{!11, !"LVerDomain"}
!12 = !{!13}
!13 = distinct !{!13, !11}
!14 = !{!15}
!15 = distinct !{!15, !11}
!16 = !{!10, !13}
!17 = distinct !{!17, !18, !19, !20}
!18 = !{!"llvm.loop.mustprogress"}
!19 = !{!"llvm.loop.isvectorized", i32 1}
!20 = !{!"llvm.loop.unroll.runtime.disable"}
!21 = distinct !{!21, !18, !19}


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