; LLVM IR from whoiswelliton/Computer_Engineering_UTFPR-PB :: Embedded_Systems/TIVA Connected TM4C1294XL Projects/01 - lwIP_HTTPServer_on_TIVA (new)

; 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.os_semaphore_def = type { 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
define dso_local signext i8 @sys_sem_new(ptr noundef %0, i8 noundef zeroext %1) #1 {
  %3 = alloca i8, align 1
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca %struct.os_semaphore_def, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i8 %1, ptr %5, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  call void @llvm.memset.p0.i64(ptr align 4 %6, i8 0, i64 4, i1 false)
  %8 = call ptr @osSemaphoreCreate(ptr noundef %6, i32 noundef 1)
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %8, ptr %9, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  store i8 -1, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %23

14:                                               ; preds = %2
  %15 = load i8, ptr %5, align 1, !tbaa !9
  %16 = zext i8 %15 to i32
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %18, label %22

18:                                               ; preds = %14
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load ptr, ptr %19, align 8, !tbaa !5
  %21 = call i32 @osSemaphoreWait(ptr noundef %20, i32 noundef 0)
  br label %22

22:                                               ; preds = %18, %14
  store i8 0, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %23

23:                                               ; preds = %22, %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %24 = load i8, ptr %3, align 1
  ret i8 %24
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

declare ptr @osSemaphoreCreate(ptr noundef, i32 noundef) #3

declare i32 @osSemaphoreWait(ptr noundef, i32 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 = !{!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"

%struct.os_semaphore_def = type { i32 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress 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 signext range(i8 -1, 1) i8 @sys_sem_new(ptr nocapture noundef writeonly %0, i8 noundef zeroext %1) local_unnamed_addr #1 {
  %3 = alloca %struct.os_semaphore_def, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  store i32 0, ptr %3, align 4
  %4 = call ptr @osSemaphoreCreate(ptr noundef nonnull %3, i32 noundef 1) #3
  store ptr %4, ptr %0, align 8, !tbaa !5
  %5 = icmp eq ptr %4, null
  br i1 %5, label %10, label %6

6:                                                ; preds = %2
  %7 = icmp eq i8 %1, 0
  br i1 %7, label %8, label %10

8:                                                ; preds = %6
  %9 = call i32 @osSemaphoreWait(ptr noundef nonnull %4, i32 noundef 0) #3
  br label %10

10:                                               ; preds = %6, %8, %2
  %.0 = phi i8 [ -1, %2 ], [ 0, %8 ], [ 0, %6 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  ret i8 %.0
}

declare ptr @osSemaphoreCreate(ptr noundef, i32 noundef) local_unnamed_addr #2

declare i32 @osSemaphoreWait(ptr noundef, i32 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress 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"}


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