; LLVM IR from cvra/robot-software :: lib/cmp/test (buf)

; 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"

%struct.buf_s = type { i64, i64, i64, ptr }

; 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 zeroext i1 @M_BufferReadStringDup(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, 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
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.buf_s, ptr %9, i32 0, i32 3
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.buf_s, ptr %12, i32 0, i32 2
  %14 = load i64, ptr %13, align 8, !tbaa !12
  %15 = getelementptr inbounds i8, ptr %11, i64 %14
  store ptr %15, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = call i64 @strlen(ptr noundef %16) #5
  store i64 %17, ptr %7, align 8, !tbaa !13
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.buf_s, ptr %18, i32 0, i32 2
  %20 = load i64, ptr %19, align 8, !tbaa !12
  %21 = load i64, ptr %7, align 8, !tbaa !13
  %22 = add i64 %20, %21
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.buf_s, ptr %23, i32 0, i32 1
  %25 = load i64, ptr %24, align 8, !tbaa !14
  %26 = icmp ugt i64 %22, %25
  br i1 %26, label %27, label %28

27:                                               ; preds = %2
  store i1 false, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %38

28:                                               ; preds = %2
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.buf_s, ptr %29, i32 0, i32 3
  %31 = load ptr, ptr %30, align 8, !tbaa !9
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.buf_s, ptr %32, i32 0, i32 2
  %34 = load i64, ptr %33, align 8, !tbaa !12
  %35 = getelementptr inbounds i8, ptr %31, i64 %34
  %36 = call ptr @_strdup(ptr noundef %35)
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %36, ptr %37, align 8, !tbaa !5
  store i1 true, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %38

38:                                               ; preds = %28, %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  %39 = load i1, ptr %3, align 1
  ret i1 %39
}

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

declare ptr @_strdup(ptr noundef) #3

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 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 = { "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 #4 = { nounwind }
attributes #5 = { 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, !6, i64 24}
!10 = !{!"buf_s", !11, i64 0, !11, i64 8, !11, i64 16, !6, i64 24}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !11, i64 16}
!13 = !{!11, !11, i64 0}
!14 = !{!10, !11, i64 8}


; 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
define dso_local noundef zeroext i1 @M_BufferReadStringDup(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 24
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  %6 = load i64, ptr %5, align 8, !tbaa !11
  %7 = getelementptr inbounds i8, ptr %4, i64 %6
  %8 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %7) #3
  %9 = add i64 %8, %6
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  %11 = load i64, ptr %10, align 8, !tbaa !12
  %12 = icmp ule i64 %9, %11
  br i1 %12, label %13, label %15

13:                                               ; preds = %2
  %14 = tail call ptr @_strdup(ptr noundef %7) #4
  store ptr %14, ptr %1, align 8, !tbaa !13
  br label %15

15:                                               ; preds = %2, %13
  ret i1 %12
}

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

declare ptr @_strdup(ptr noundef) local_unnamed_addr #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 = { 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 = { "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 willreturn memory(read) }
attributes #4 = { 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, !10, i64 24}
!6 = !{!"buf_s", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 16}
!12 = !{!6, !7, i64 8}
!13 = !{!10, !10, i64 0}


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