; LLVM IR from aap/pdp6 :: tools (ld6)

; 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"

@mem = external dso_local global [262144 x i64], align 16
@locmin = external dso_local global i32, align 4
@locmax = external dso_local global i32, align 4
@start = external dso_local global i32, align 4
@.str.10 = external hidden unnamed_addr constant [3 x i8], align 1

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

; 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

declare i64 @fw(i32 noundef, i32 noundef) #2

declare i32 @fclose(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @savesav(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = call ptr @mustopen(ptr noundef %5, ptr noundef @.str.10)
  store ptr %6, ptr %3, align 8, !tbaa !5
  %7 = load i32, ptr @locmax, align 4, !tbaa !9
  %8 = add i32 %7, 1
  %9 = load i32, ptr @locmin, align 4, !tbaa !9
  %10 = sub i32 %8, %9
  %11 = sub i32 0, %10
  %12 = load i32, ptr @locmin, align 4, !tbaa !9
  %13 = sub i32 %12, 1
  %14 = call i64 @fw(i32 noundef %11, i32 noundef %13)
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  call void @writewbak(i64 noundef %14, ptr noundef %15)
  %16 = load i32, ptr @locmin, align 4, !tbaa !9
  store i32 %16, ptr %4, align 4, !tbaa !9
  br label %17

17:                                               ; preds = %27, %1
  %18 = load i32, ptr %4, align 4, !tbaa !9
  %19 = load i32, ptr @locmax, align 4, !tbaa !9
  %20 = icmp ule i32 %18, %19
  br i1 %20, label %21, label %30

21:                                               ; preds = %17
  %22 = load i32, ptr %4, align 4, !tbaa !9
  %23 = zext i32 %22 to i64
  %24 = getelementptr inbounds [262144 x i64], ptr @mem, i64 0, i64 %23
  %25 = load i64, ptr %24, align 8, !tbaa !11
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  call void @writewbak(i64 noundef %25, ptr noundef %26)
  br label %27

27:                                               ; preds = %21
  %28 = load i32, ptr %4, align 4, !tbaa !9
  %29 = add i32 %28, 1
  store i32 %29, ptr %4, align 4, !tbaa !9
  br label %17, !llvm.loop !13

30:                                               ; preds = %17
  %31 = load i32, ptr @start, align 4, !tbaa !9
  %32 = call i64 @fw(i32 noundef 88064, i32 noundef %31)
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  call void @writewbak(i64 noundef %32, ptr noundef %33)
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = call i32 @fclose(ptr noundef %34)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

declare void @writewbak(i64 noundef, ptr noundef) #2

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 = { "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 #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}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !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"

@mem = external dso_local local_unnamed_addr global [262144 x i64], align 16
@locmin = external dso_local local_unnamed_addr global i32, align 4
@locmax = external dso_local local_unnamed_addr global i32, align 4
@start = external dso_local local_unnamed_addr global i32, align 4
@.str.10 = external hidden unnamed_addr constant [3 x i8], align 1

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

declare i64 @fw(i32 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @savesav(ptr noundef %0) local_unnamed_addr #0 {
  %2 = tail call ptr @mustopen(ptr noundef %0, ptr noundef nonnull @.str.10)
  %3 = load i32, ptr @locmax, align 4, !tbaa !5
  %.neg7 = xor i32 %3, -1
  %4 = load i32, ptr @locmin, align 4, !tbaa !5
  %.neg = add i32 %4, %.neg7
  %5 = add i32 %4, -1
  %6 = tail call i64 @fw(i32 noundef %.neg, i32 noundef %5) #3
  tail call void @writewbak(i64 noundef %6, ptr noundef %2) #3
  %7 = load i32, ptr @locmin, align 4, !tbaa !5
  %8 = load i32, ptr @locmax, align 4, !tbaa !5
  %.not8 = icmp ugt i32 %7, %8
  br i1 %.not8, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.09 = phi i32 [ %12, %.lr.ph ], [ %7, %1 ]
  %9 = zext i32 %.09 to i64
  %10 = getelementptr inbounds [262144 x i64], ptr @mem, i64 0, i64 %9
  %11 = load i64, ptr %10, align 8, !tbaa !9
  tail call void @writewbak(i64 noundef %11, ptr noundef %2) #3
  %12 = add i32 %.09, 1
  %13 = load i32, ptr @locmax, align 4, !tbaa !5
  %.not = icmp ugt i32 %12, %13
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph, %1
  %14 = load i32, ptr @start, align 4, !tbaa !5
  %15 = tail call i64 @fw(i32 noundef 88064, i32 noundef %14) #3
  tail call void @writewbak(i64 noundef %15, ptr noundef %2) #3
  %16 = tail call i32 @fclose(ptr noundef %2)
  ret void
}

declare void @writewbak(i64 noundef, ptr noundef) local_unnamed_addr #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 = { "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 = { nofree nounwind "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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass