; LLVM IR from clibs/clib :: deps/str-ends-with (str-ends-with)

; 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 zeroext i1 @str_ends_with(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i1, align 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
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = icmp eq ptr null, %9
  br i1 %10, label %14, label %11

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

14:                                               ; preds = %11, %2
  store i1 false, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %43

15:                                               ; preds = %11
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call i64 @strlen(ptr noundef %16) #4
  %18 = trunc i64 %17 to i32
  store i32 %18, ptr %6, align 4, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = call i64 @strlen(ptr noundef %19) #4
  %21 = trunc i64 %20 to i32
  store i32 %21, ptr %7, align 4, !tbaa !9
  %22 = load i32, ptr %7, align 4, !tbaa !9
  %23 = load i32, ptr %6, align 4, !tbaa !9
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %15
  br label %40

26:                                               ; preds = %15
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = load i32, ptr %7, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds i8, ptr %27, i64 %29
  %31 = load i32, ptr %6, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = sub i64 0, %32
  %34 = getelementptr inbounds i8, ptr %30, i64 %33
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = call i32 @strcmp(ptr noundef %34, ptr noundef %35) #4
  %37 = icmp ne i32 %36, 0
  %38 = xor i1 %37, true
  %39 = zext i1 %38 to i32
  br label %40

40:                                               ; preds = %26, %25
  %41 = phi i32 [ 0, %25 ], [ %39, %26 ]
  %42 = icmp ne i32 %41, 0
  store i1 %42, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %43

43:                                               ; preds = %40, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %44 = load i1, ptr %3, align 1
  ret i1 %44
}

; 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 @strcmp(ptr noundef, ptr 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 = !{!"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: mustprogress nofree nounwind willreturn memory(argmem: read) uwtable
define dso_local zeroext i1 @str_ends_with(ptr noundef readonly %0, ptr noundef readonly %1) local_unnamed_addr #0 {
  %3 = icmp eq ptr %0, null
  %4 = icmp eq ptr %1, null
  %or.cond = or i1 %3, %4
  br i1 %or.cond, label %18, label %5

5:                                                ; preds = %2
  %6 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %1) #2
  %7 = trunc i64 %6 to i32
  %8 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %0) #2
  %9 = trunc i64 %8 to i32
  %10 = icmp slt i32 %9, %7
  br i1 %10, label %18, label %11

11:                                               ; preds = %5
  %sext = shl i64 %8, 32
  %12 = ashr exact i64 %sext, 32
  %13 = getelementptr inbounds i8, ptr %0, i64 %12
  %sext15 = shl i64 %6, 32
  %14 = ashr exact i64 %sext15, 32
  %15 = sub nsw i64 0, %14
  %16 = getelementptr inbounds i8, ptr %13, i64 %15
  %17 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %16, ptr noundef nonnull dereferenceable(1) %1) #2
  %.not = icmp eq i32 %17, 0
  br label %18

18:                                               ; preds = %11, %5, %2
  %.0 = phi i1 [ false, %2 ], [ %.not, %11 ], [ false, %5 ]
  ret i1 %.0
}

; 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 @strcmp(ptr nocapture noundef, ptr nocapture 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