; LLVM IR from yuikns/panther :: ann/ann2fig/ann2fig.ll (Z13set_slice_vald)

; 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"

@slice_val = external dso_local global [1000 x double], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z13set_slice_vald(double noundef %0) #0 {
  %2 = alloca double, align 8
  %3 = alloca i32, align 4
  store double %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %4

4:                                                ; preds = %13, %1
  %5 = load i32, ptr %3, align 4, !tbaa !9
  %6 = icmp slt i32 %5, 1000
  br i1 %6, label %8, label %7

7:                                                ; preds = %4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  br label %16

8:                                                ; preds = %4
  %9 = load double, ptr %2, align 8, !tbaa !5
  %10 = load i32, ptr %3, align 4, !tbaa !9
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [1000 x double], ptr @slice_val, i64 0, i64 %11
  store double %9, ptr %12, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %8
  %14 = load i32, ptr %3, align 4, !tbaa !9
  %15 = add nsw i32 %14, 1
  store i32 %15, ptr %3, align 4, !tbaa !9
  br label %4, !llvm.loop !11

16:                                               ; preds = %7
  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 = { 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 #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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

@slice_val = external dso_local local_unnamed_addr global [1000 x double], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind memory(write, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z13set_slice_vald(double noundef %0) local_unnamed_addr #0 {
vector.ph:
  %broadcast.splatinsert = insertelement <2 x double> poison, double %0, 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.4, %vector.body ]
  %1 = getelementptr inbounds [1000 x double], ptr @slice_val, i64 0, i64 %index
  %2 = getelementptr inbounds i8, ptr %1, i64 16
  store <2 x double> %broadcast.splat, ptr %1, align 16, !tbaa !5
  store <2 x double> %broadcast.splat, ptr %2, align 16, !tbaa !5
  %index.next = add nuw nsw i64 %index, 4
  %3 = getelementptr inbounds [1000 x double], ptr @slice_val, i64 0, i64 %index.next
  %4 = getelementptr inbounds i8, ptr %3, i64 16
  store <2 x double> %broadcast.splat, ptr %3, align 16, !tbaa !5
  store <2 x double> %broadcast.splat, ptr %4, align 16, !tbaa !5
  %index.next.1 = add nuw nsw i64 %index, 8
  %5 = getelementptr inbounds [1000 x double], ptr @slice_val, i64 0, i64 %index.next.1
  %6 = getelementptr inbounds i8, ptr %5, i64 16
  store <2 x double> %broadcast.splat, ptr %5, align 16, !tbaa !5
  store <2 x double> %broadcast.splat, ptr %6, align 16, !tbaa !5
  %index.next.2 = add nuw nsw i64 %index, 12
  %7 = getelementptr inbounds [1000 x double], ptr @slice_val, i64 0, i64 %index.next.2
  %8 = getelementptr inbounds i8, ptr %7, i64 16
  store <2 x double> %broadcast.splat, ptr %7, align 16, !tbaa !5
  store <2 x double> %broadcast.splat, ptr %8, align 16, !tbaa !5
  %index.next.3 = add nuw nsw i64 %index, 16
  %9 = getelementptr inbounds [1000 x double], ptr @slice_val, i64 0, i64 %index.next.3
  %10 = getelementptr inbounds i8, ptr %9, i64 16
  store <2 x double> %broadcast.splat, ptr %9, align 16, !tbaa !5
  store <2 x double> %broadcast.splat, ptr %10, align 16, !tbaa !5
  %index.next.4 = add nuw nsw i64 %index, 20
  %11 = icmp eq i64 %index.next.4, 1000
  br i1 %11, label %middle.block, label %vector.body, !llvm.loop !9

middle.block:                                     ; preds = %vector.body
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(write, argmem: none, 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, !6, i64 0}
!6 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10, !11, !12}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.isvectorized", i32 1}
!12 = !{!"llvm.loop.unroll.runtime.disable"}


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