; LLVM IR from snowballstem/snowball :: compiler (space)

; 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
declare dso_local ptr @create_s(i32 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @increase_capacity_s(ptr noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @add_s_to_s(ptr noundef %0, ptr noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %11, label %14

11:                                               ; preds = %3
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = call ptr @create_s(i32 noundef %12)
  store ptr %13, ptr %4, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %11, %3
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds i32, ptr %15, i64 -1
  %17 = load i32, ptr %16, align 4, !tbaa !9
  store i32 %17, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %18 = load i32, ptr %7, align 4, !tbaa !9
  %19 = load i32, ptr %6, align 4, !tbaa !9
  %20 = add nsw i32 %18, %19
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds i32, ptr %21, i64 -2
  %23 = load i32, ptr %22, align 4, !tbaa !9
  %24 = sub nsw i32 %20, %23
  store i32 %24, ptr %8, align 4, !tbaa !9
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = icmp sgt i32 %25, 0
  br i1 %26, label %27, label %31

27:                                               ; preds = %14
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = load i32, ptr %8, align 4, !tbaa !9
  %30 = call ptr @increase_capacity_s(ptr noundef %28, i32 noundef %29)
  store ptr %30, ptr %4, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %27, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = load i32, ptr %7, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds i8, ptr %32, i64 %34
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = load i32, ptr %6, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %35, ptr align 1 %36, i64 %38, i1 false)
  %39 = load i32, ptr %6, align 4, !tbaa !9
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = getelementptr inbounds i32, ptr %40, i64 -1
  %42 = load i32, ptr %41, align 4, !tbaa !9
  %43 = add nsw i32 %42, %39
  store i32 %43, ptr %41, align 4, !tbaa !9
  %44 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret ptr %44
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}


; 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: nounwind uwtable
declare dso_local ptr @create_s(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @increase_capacity_s(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @add_s_to_s(ptr noundef %0, ptr nocapture noundef readonly %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq ptr %0, null
  br i1 %4, label %5, label %7

5:                                                ; preds = %3
  %6 = tail call ptr @create_s(i32 noundef %2)
  br label %7

7:                                                ; preds = %5, %3
  %.0 = phi ptr [ %6, %5 ], [ %0, %3 ]
  %8 = getelementptr inbounds i8, ptr %.0, i64 -4
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = add nsw i32 %9, %2
  %11 = getelementptr inbounds i8, ptr %.0, i64 -8
  %12 = load i32, ptr %11, align 4, !tbaa !5
  %13 = sub i32 %10, %12
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %15, label %17

15:                                               ; preds = %7
  %16 = tail call ptr @increase_capacity_s(ptr noundef nonnull %.0, i32 noundef %13)
  br label %17

17:                                               ; preds = %15, %7
  %.1 = phi ptr [ %16, %15 ], [ %.0, %7 ]
  %18 = sext i32 %9 to i64
  %19 = getelementptr inbounds i8, ptr %.1, i64 %18
  %20 = sext i32 %2 to i64
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %19, ptr align 1 %1, i64 %20, i1 false)
  %21 = getelementptr inbounds i8, ptr %.1, i64 -4
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = add nsw i32 %22, %2
  store i32 %23, ptr %21, align 4, !tbaa !5
  ret ptr %.1
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass