; LLVM IR from DanEngelbrecht/longtail :: lib/fsblockstore (longtail_fsblockstore)

; 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 i32 @EndsWith(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %14

11:                                               ; preds = %2
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %15, label %14

14:                                               ; preds = %11, %2
  store i32 0, ptr %3, align 4
  br label %37

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call i64 @strlen(ptr noundef %16) #4
  store i64 %17, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = call i64 @strlen(ptr noundef %18) #4
  store i64 %19, ptr %7, align 8, !tbaa !9
  %20 = load i64, ptr %7, align 8, !tbaa !9
  %21 = load i64, ptr %6, align 8, !tbaa !9
  %22 = icmp ugt i64 %20, %21
  br i1 %22, label %23, label %24

23:                                               ; preds = %15
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %36

24:                                               ; preds = %15
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load i64, ptr %6, align 8, !tbaa !9
  %27 = getelementptr inbounds i8, ptr %25, i64 %26
  %28 = load i64, ptr %7, align 8, !tbaa !9
  %29 = sub i64 0, %28
  %30 = getelementptr inbounds i8, ptr %27, i64 %29
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = load i64, ptr %7, align 8, !tbaa !9
  %33 = call i32 @strncmp(ptr noundef %30, ptr noundef %31, i64 noundef %32) #4
  %34 = icmp eq i32 %33, 0
  %35 = zext i1 %34 to i32
  store i32 %35, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %36

36:                                               ; preds = %24, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %37

37:                                               ; preds = %36, %14
  %38 = load i32, ptr %3, align 4
  ret i32 %38
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strncmp(ptr noundef, ptr noundef, i64 noundef) #2

; 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 willreturn memory(read) "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 }
attributes #4 = { nounwind willreturn memory(read) }

!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", !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: mustprogress nofree nounwind willreturn memory(argmem: read) uwtable
define dso_local range(i32 0, 2) i32 @EndsWith(ptr noundef readonly %0, ptr noundef readonly %1) local_unnamed_addr #0 {
  %3 = icmp ne ptr %0, null
  %4 = icmp ne ptr %1, null
  %or.cond = and i1 %3, %4
  br i1 %or.cond, label %5, label %16

5:                                                ; preds = %2
  %6 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %0) #2
  %7 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %1) #2
  %8 = icmp ugt i64 %7, %6
  br i1 %8, label %16, label %9

9:                                                ; preds = %5
  %10 = getelementptr inbounds i8, ptr %0, i64 %6
  %11 = sub i64 0, %7
  %12 = getelementptr inbounds i8, ptr %10, i64 %11
  %13 = tail call i32 @strncmp(ptr noundef nonnull %12, ptr noundef nonnull %1, i64 noundef %7) #2
  %14 = icmp eq i32 %13, 0
  %15 = zext i1 %14 to i32
  br label %16

16:                                               ; preds = %9, %5, %2
  %.1 = phi i32 [ 0, %2 ], [ %15, %9 ], [ 0, %5 ]
  ret i32 %.1
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strncmp(ptr nocapture noundef, ptr nocapture noundef, i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: read) 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 nofree nounwind willreturn memory(argmem: read) "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 willreturn memory(read) }

!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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass