; LLVM IR from ctlst-tech/catpilot :: os/fatfs/fsa (stdio)

; 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"

@sys_errlist = external dso_local global [37 x ptr], align 16
@sys_errtimedout = external dso_local constant [21 x i8], align 16
@FreeRTOS_errno = external global i32, align 4
@.str.51 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.52 = external hidden unnamed_addr constant [4 x i8], align 1

; 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 void @perror(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store ptr null, ptr %3, align 8, !tbaa !5
  %4 = load i32, ptr @FreeRTOS_errno, align 4, !tbaa !9
  %5 = icmp sge i32 %4, 0
  br i1 %5, label %6, label %14

6:                                                ; preds = %1
  %7 = load i32, ptr @FreeRTOS_errno, align 4, !tbaa !9
  %8 = icmp slt i32 %7, 35
  br i1 %8, label %9, label %14

9:                                                ; preds = %6
  %10 = load i32, ptr @FreeRTOS_errno, align 4, !tbaa !9
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [37 x ptr], ptr @sys_errlist, i64 0, i64 %11
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  store ptr %13, ptr %3, align 8, !tbaa !5
  br label %21

14:                                               ; preds = %6, %1
  %15 = load i32, ptr @FreeRTOS_errno, align 4, !tbaa !9
  %16 = icmp eq i32 %15, 116
  br i1 %16, label %17, label %18

17:                                               ; preds = %14
  store ptr @sys_errtimedout, ptr %3, align 8, !tbaa !5
  br label %20

18:                                               ; preds = %14
  %19 = load ptr, ptr getelementptr inbounds ([37 x ptr], ptr @sys_errlist, i64 0, i64 35), align 8, !tbaa !5
  store ptr %19, ptr %3, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %18, %17
  br label %21

21:                                               ; preds = %20, %9
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %33

24:                                               ; preds = %21
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = load i8, ptr %25, align 1, !tbaa !11
  %27 = sext i8 %26 to i32
  %28 = icmp ne i32 %27, 0
  br i1 %28, label %29, label %33

29:                                               ; preds = %24
  %30 = load ptr, ptr %2, align 8, !tbaa !5
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = call i32 (ptr, ...) @printf_(ptr noundef @.str.51, ptr noundef %30, ptr noundef %31)
  br label %36

33:                                               ; preds = %24, %21
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = call i32 (ptr, ...) @printf_(ptr noundef @.str.52, ptr noundef %34)
  br label %36

36:                                               ; preds = %33, %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

declare i32 @printf_(ptr noundef, ...) #2

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 = { "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 = !{!7, !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"

@sys_errlist = external dso_local local_unnamed_addr global [37 x ptr], align 16
@sys_errtimedout = external dso_local constant [21 x i8], align 16
@FreeRTOS_errno = external local_unnamed_addr global i32, align 4
@.str.51 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.52 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @perror(ptr noundef %0) local_unnamed_addr #0 {
  %2 = load i32, ptr @FreeRTOS_errno, align 4
  %or.cond = icmp ult i32 %2, 35
  br i1 %or.cond, label %3, label %7

3:                                                ; preds = %1
  %4 = zext nneg i32 %2 to i64
  %5 = getelementptr inbounds [37 x ptr], ptr @sys_errlist, i64 0, i64 %4
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  br label %10

7:                                                ; preds = %1
  %8 = icmp eq i32 %2, 116
  %9 = load ptr, ptr getelementptr inbounds (i8, ptr @sys_errlist, i64 280), align 8
  %spec.select = select i1 %8, ptr @sys_errtimedout, ptr %9
  br label %10

10:                                               ; preds = %7, %3
  %.0 = phi ptr [ %6, %3 ], [ %spec.select, %7 ]
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %15, label %11

11:                                               ; preds = %10
  %12 = load i8, ptr %0, align 1, !tbaa !9
  %.not8 = icmp eq i8 %12, 0
  br i1 %.not8, label %15, label %13

13:                                               ; preds = %11
  %14 = tail call i32 (ptr, ...) @printf_(ptr noundef nonnull @.str.51, ptr noundef nonnull %0, ptr noundef %.0) #2
  br label %17

15:                                               ; preds = %11, %10
  %16 = tail call i32 (ptr, ...) @printf_(ptr noundef nonnull @.str.52, ptr noundef %.0) #2
  br label %17

17:                                               ; preds = %15, %13
  ret void
}

declare i32 @printf_(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 = { 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 = !{!7, !7, i64 0}


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