; LLVM IR from mlcommons/tiny :: benchmark/interface/Middlewares/ST/filex/common/src/fxe_file_read.ll (fxe_file_read)

; 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.TX_THREAD_STRUCT = type { i64, i64, ptr, ptr, ptr, i64, i64, i64, ptr, ptr, ptr, i32, i32, i32, i32, i32, ptr, ptr, i64, %struct.TX_TIMER_INTERNAL_STRUCT, ptr, ptr, ptr, ptr, i64, ptr, i32, i32, ptr, ptr, ptr, ptr, i32, i32, i32, i32, ptr, ptr, ptr, i64 }
%struct.TX_TIMER_INTERNAL_STRUCT = type { i64, i64, ptr, i64, ptr, ptr, ptr }

@_tx_thread_system_state = external global i64, align 8
@_tx_thread_current_ptr = external global ptr, align 8
@_tx_timer_thread = external global %struct.TX_THREAD_STRUCT, align 8

; Function Attrs: nounwind uwtable
define dso_local i32 @_fxe_file_read(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i64 %2, ptr %8, align 8, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = icmp eq ptr %12, null
  br i1 %13, label %20, label %14

14:                                               ; preds = %4
  %15 = load ptr, ptr %7, align 8, !tbaa !5
  %16 = icmp eq ptr %15, null
  br i1 %16, label %20, label %17

17:                                               ; preds = %14
  %18 = load ptr, ptr %9, align 8, !tbaa !5
  %19 = icmp eq ptr %18, null
  br i1 %19, label %20, label %21

20:                                               ; preds = %17, %14, %4
  store i32 24, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %41

21:                                               ; preds = %17
  %22 = load volatile i64, ptr @_tx_thread_system_state, align 8, !tbaa !9
  %23 = call i32 @_tx_ipsr_get()
  %24 = zext i32 %23 to i64
  %25 = or i64 %22, %24
  %26 = icmp ne i64 %25, 0
  br i1 %26, label %33, label %27

27:                                               ; preds = %21
  %28 = load ptr, ptr @_tx_thread_current_ptr, align 8, !tbaa !5
  %29 = icmp eq ptr %28, null
  br i1 %29, label %33, label %30

30:                                               ; preds = %27
  %31 = load ptr, ptr @_tx_thread_current_ptr, align 8, !tbaa !5
  %32 = icmp eq ptr %31, @_tx_timer_thread
  br i1 %32, label %33, label %34

33:                                               ; preds = %30, %27, %21
  store i32 32, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %41

34:                                               ; preds = %30
  %35 = load ptr, ptr %6, align 8, !tbaa !5
  %36 = load ptr, ptr %7, align 8, !tbaa !5
  %37 = load i64, ptr %8, align 8, !tbaa !9
  %38 = load ptr, ptr %9, align 8, !tbaa !5
  %39 = call i32 @_fx_file_read(ptr noundef %35, ptr noundef %36, i64 noundef %37, ptr noundef %38)
  store i32 %39, ptr %10, align 4, !tbaa !11
  %40 = load i32, ptr %10, align 4, !tbaa !11
  store i32 %40, ptr %5, align 4
  store i32 1, ptr %11, align 4
  br label %41

41:                                               ; preds = %34, %33, %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  %42 = load i32, ptr %5, align 4
  ret i32 %42
}

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

; Function Attrs: alwaysinline nounwind uwtable
declare hidden i32 @_tx_ipsr_get() #2

declare i32 @_fx_file_read(ptr noundef, ptr noundef, i64 noundef, ptr noundef) #3

; 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 = { alwaysinline 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 #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 }

!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}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

%struct.TX_THREAD_STRUCT = type { i64, i64, ptr, ptr, ptr, i64, i64, i64, ptr, ptr, ptr, i32, i32, i32, i32, i32, ptr, ptr, i64, %struct.TX_TIMER_INTERNAL_STRUCT, ptr, ptr, ptr, ptr, i64, ptr, i32, i32, ptr, ptr, ptr, ptr, i32, i32, i32, i32, ptr, ptr, ptr, i64 }
%struct.TX_TIMER_INTERNAL_STRUCT = type { i64, i64, ptr, i64, ptr, ptr, ptr }

@_tx_thread_system_state = external global i64, align 8
@_tx_thread_current_ptr = external local_unnamed_addr global ptr, align 8
@_tx_timer_thread = external global %struct.TX_THREAD_STRUCT, align 8

; Function Attrs: nounwind uwtable
define dso_local i32 @_fxe_file_read(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = icmp eq ptr %0, null
  %6 = icmp eq ptr %1, null
  %or.cond = or i1 %5, %6
  %7 = icmp eq ptr %3, null
  %or.cond3 = or i1 %or.cond, %7
  br i1 %or.cond3, label %20, label %8

8:                                                ; preds = %4
  %9 = load volatile i64, ptr @_tx_thread_system_state, align 8, !tbaa !5
  %10 = tail call i32 @_tx_ipsr_get()
  %11 = zext i32 %10 to i64
  %12 = or i64 %9, %11
  %13 = icmp ne i64 %12, 0
  %14 = load ptr, ptr @_tx_thread_current_ptr, align 8
  %15 = icmp eq ptr %14, null
  %16 = icmp eq ptr %14, @_tx_timer_thread
  %17 = or i1 %15, %16
  %or.cond7 = select i1 %13, i1 true, i1 %17
  br i1 %or.cond7, label %20, label %18

18:                                               ; preds = %8
  %19 = tail call i32 @_fx_file_read(ptr noundef nonnull %0, ptr noundef nonnull %1, i64 noundef %2, ptr noundef nonnull %3) #3
  br label %20

20:                                               ; preds = %8, %4, %18
  %.0 = phi i32 [ %19, %18 ], [ 24, %4 ], [ 32, %8 ]
  ret i32 %.0
}

; Function Attrs: alwaysinline nounwind uwtable
declare hidden i32 @_tx_ipsr_get() local_unnamed_addr #1

declare i32 @_fx_file_read(ptr noundef, ptr noundef, i64 noundef, 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 = { alwaysinline 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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