; LLVM IR from caryll/otfcc :: dep/extern (sds)

; 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 i32 @sdsull2str(ptr noundef %0, i64 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i8, align 1
  %7 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %8, ptr %5, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %18, %2
  %10 = load i64, ptr %4, align 8, !tbaa !9
  %11 = urem i64 %10, 10
  %12 = add i64 48, %11
  %13 = trunc i64 %12 to i8
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %14, i32 1
  store ptr %15, ptr %5, align 8, !tbaa !5
  store i8 %13, ptr %14, align 1, !tbaa !11
  %16 = load i64, ptr %4, align 8, !tbaa !9
  %17 = udiv i64 %16, 10
  store i64 %17, ptr %4, align 8, !tbaa !9
  br label %18

18:                                               ; preds = %9
  %19 = load i64, ptr %4, align 8, !tbaa !9
  %20 = icmp ne i64 %19, 0
  br i1 %20, label %9, label %21, !llvm.loop !12

21:                                               ; preds = %18
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = ptrtoint ptr %22 to i64
  %25 = ptrtoint ptr %23 to i64
  %26 = sub i64 %24, %25
  store i64 %26, ptr %7, align 8, !tbaa !14
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  store i8 0, ptr %27, align 1, !tbaa !11
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = getelementptr inbounds i8, ptr %28, i32 -1
  store ptr %29, ptr %5, align 8, !tbaa !5
  br label %30

30:                                               ; preds = %34, %21
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = icmp ult ptr %31, %32
  br i1 %33, label %34, label %46

34:                                               ; preds = %30
  %35 = load ptr, ptr %3, align 8, !tbaa !5
  %36 = load i8, ptr %35, align 1, !tbaa !11
  store i8 %36, ptr %6, align 1, !tbaa !11
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = load i8, ptr %37, align 1, !tbaa !11
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  store i8 %38, ptr %39, align 1, !tbaa !11
  %40 = load i8, ptr %6, align 1, !tbaa !11
  %41 = load ptr, ptr %5, align 8, !tbaa !5
  store i8 %40, ptr %41, align 1, !tbaa !11
  %42 = load ptr, ptr %3, align 8, !tbaa !5
  %43 = getelementptr inbounds i8, ptr %42, i32 1
  store ptr %43, ptr %3, align 8, !tbaa !5
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = getelementptr inbounds i8, ptr %44, i32 -1
  store ptr %45, ptr %5, align 8, !tbaa !5
  br label %30, !llvm.loop !16

46:                                               ; preds = %30
  %47 = load i64, ptr %7, align 8, !tbaa !14
  %48 = trunc i64 %47 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret i32 %48
}

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 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{!15, !15, i64 0}
!15 = !{!"long", !7, i64 0}
!16 = distinct !{!16, !13}


; 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(readwrite, inaccessiblemem: none) uwtable
define dso_local i32 @sdsull2str(ptr noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  br label %3

3:                                                ; preds = %3, %2
  %.019 = phi ptr [ %0, %2 ], [ %7, %3 ]
  %.018 = phi i64 [ %1, %2 ], [ %8, %3 ]
  %4 = urem i64 %.018, 10
  %5 = trunc nuw nsw i64 %4 to i8
  %6 = or disjoint i8 %5, 48
  %7 = getelementptr inbounds i8, ptr %.019, i64 1
  store i8 %6, ptr %.019, align 1, !tbaa !5
  %8 = udiv i64 %.018, 10
  %.not = icmp ult i64 %.018, 10
  br i1 %.not, label %9, label %3, !llvm.loop !8

9:                                                ; preds = %3
  store i8 0, ptr %7, align 1, !tbaa !5
  %10 = icmp ugt ptr %.019, %0
  br i1 %10, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %9, %.lr.ph
  %.021 = phi ptr [ %13, %.lr.ph ], [ %0, %9 ]
  %.120 = phi ptr [ %14, %.lr.ph ], [ %.019, %9 ]
  %11 = load i8, ptr %.021, align 1, !tbaa !5
  %12 = load i8, ptr %.120, align 1, !tbaa !5
  store i8 %12, ptr %.021, align 1, !tbaa !5
  store i8 %11, ptr %.120, align 1, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %.021, i64 1
  %14 = getelementptr inbounds i8, ptr %.120, i64 -1
  %15 = icmp ult ptr %13, %14
  br i1 %15, label %.lr.ph, label %._crit_edge, !llvm.loop !10

._crit_edge:                                      ; preds = %.lr.ph, %9
  %16 = ptrtoint ptr %7 to i64
  %17 = ptrtoint ptr %0 to i64
  %18 = sub i64 %16, %17
  %19 = trunc i64 %18 to i32
  ret i32 %19
}

attributes #0 = { nofree norecurse nosync nounwind memory(readwrite, 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = distinct !{!10, !9}


; Effective O3 passes: GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass