; LLVM IR from carlk3/no-OS-FatFS-SD-SDIO-SPI-RPi-Pico :: src/ff15/source (ff)

; 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.DIR = type { %struct.FFOBJID, i32, i32, i64, ptr, [12 x i8], i32, ptr }
%struct.FFOBJID = type { ptr, i16, i8, i8, i32, i64, i32, i32, i32, i32, i32, i32 }

; 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
declare dso_local i32 @f_opendir(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @f_findnext(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @f_findfirst(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %10 = load ptr, ptr %8, align 8, !tbaa !5
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.DIR, ptr %11, i32 0, i32 7
  store ptr %10, ptr %12, align 8, !tbaa !9
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = call i32 @f_opendir(ptr noundef %13, ptr noundef %14)
  store i32 %15, ptr %9, align 4, !tbaa !15
  %16 = load i32, ptr %9, align 4, !tbaa !15
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %18, label %22

18:                                               ; preds = %4
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = call i32 @f_findnext(ptr noundef %19, ptr noundef %20)
  store i32 %21, ptr %9, align 4, !tbaa !15
  br label %22

22:                                               ; preds = %18, %4
  %23 = load i32, ptr %9, align 4, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  ret i32 %23
}

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, !6, i64 88}
!10 = !{!"", !11, i64 0, !13, i64 48, !13, i64 52, !14, i64 56, !6, i64 64, !7, i64 72, !13, i64 84, !6, i64 88}
!11 = !{!"", !6, i64 0, !12, i64 8, !7, i64 10, !7, i64 11, !13, i64 12, !14, i64 16, !13, i64 24, !13, i64 28, !13, i64 32, !13, i64 36, !13, i64 40, !13, i64 44}
!12 = !{!"short", !7, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = !{!13, !13, 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: nounwind uwtable
declare dso_local i32 @f_opendir(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @f_findnext(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @f_findfirst(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = getelementptr inbounds i8, ptr %0, i64 88
  store ptr %3, ptr %5, align 8, !tbaa !5
  %6 = tail call i32 @f_opendir(ptr noundef %0, ptr noundef %2)
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %8, label %10

8:                                                ; preds = %4
  %9 = tail call i32 @f_findnext(ptr noundef nonnull %0, ptr noundef %1)
  br label %10

10:                                               ; preds = %8, %4
  %.0 = phi i32 [ %9, %8 ], [ %6, %4 ]
  ret i32 %.0
}

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" }

!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, !8, i64 88}
!6 = !{!"", !7, i64 0, !12, i64 48, !12, i64 52, !13, i64 56, !8, i64 64, !9, i64 72, !12, i64 84, !8, i64 88}
!7 = !{!"", !8, i64 0, !11, i64 8, !9, i64 10, !9, i64 11, !12, i64 12, !13, i64 16, !12, i64 24, !12, i64 28, !12, i64 32, !12, i64 36, !12, i64 40, !12, i64 44}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"short", !9, i64 0}
!12 = !{!"int", !9, i64 0}
!13 = !{!"long", !9, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass