; LLVM IR from davidesantangelo/krep :: krep (thread_pool_wait_all)

; 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.thread_pool_t = type { ptr, i32, ptr, ptr, %union.pthread_mutex_t, %union.pthread_cond_t, %union.pthread_cond_t, i64, i8 }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%union.pthread_cond_t = type { %struct.__pthread_cond_s }
%struct.__pthread_cond_s = type { %union.__atomic_wide_counter, %union.__atomic_wide_counter, [2 x i32], [2 x i32], i32, i32, [2 x i32] }
%union.__atomic_wide_counter = type { i64 }

; Function Attrs: nounwind uwtable
define dso_local void @thread_pool_wait_all(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp ne ptr %3, null
  br i1 %4, label %6, label %5

5:                                                ; preds = %1
  br label %32

6:                                                ; preds = %1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.thread_pool_t, ptr %7, i32 0, i32 4
  %9 = call i32 @pthread_mutex_lock(ptr noundef %8) #3
  br label %10

10:                                               ; preds = %22, %6
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.thread_pool_t, ptr %11, i32 0, i32 2
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = icmp ne ptr %13, null
  br i1 %14, label %20, label %15

15:                                               ; preds = %10
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.thread_pool_t, ptr %16, i32 0, i32 7
  %18 = load i64, ptr %17, align 8, !tbaa !13
  %19 = icmp ugt i64 %18, 0
  br label %20

20:                                               ; preds = %15, %10
  %21 = phi i1 [ true, %10 ], [ %19, %15 ]
  br i1 %21, label %22, label %28

22:                                               ; preds = %20
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.thread_pool_t, ptr %23, i32 0, i32 6
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.thread_pool_t, ptr %25, i32 0, i32 4
  %27 = call i32 @pthread_cond_wait(ptr noundef %24, ptr noundef %26)
  br label %10, !llvm.loop !14

28:                                               ; preds = %20
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.thread_pool_t, ptr %29, i32 0, i32 4
  %31 = call i32 @pthread_mutex_unlock(ptr noundef %30) #3
  br label %32

32:                                               ; preds = %28, %5
  ret void
}

; Function Attrs: nounwind
declare i32 @pthread_mutex_lock(ptr noundef) #1

; Function Attrs: nounwind
declare i32 @pthread_mutex_unlock(ptr noundef) #1

declare i32 @pthread_cond_wait(ptr noundef, ptr noundef) #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 = { nounwind "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, !6, i64 16}
!10 = !{!"", !6, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !7, i64 32, !7, i64 72, !7, i64 120, !12, i64 168, !7, i64 176}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !12, i64 168}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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 void @thread_pool_wait_all(ptr noundef %0) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %15, label %2

2:                                                ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 32
  %4 = tail call i32 @pthread_mutex_lock(ptr noundef nonnull %3) #3
  %5 = getelementptr inbounds i8, ptr %0, i64 168
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = getelementptr inbounds i8, ptr %0, i64 120
  br label %8

8:                                                ; preds = %.critedge, %2
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %.not7 = icmp eq ptr %9, null
  br i1 %.not7, label %10, label %.critedge

10:                                               ; preds = %8
  %11 = load i64, ptr %5, align 8, !tbaa !12
  %.not8 = icmp eq i64 %11, 0
  br i1 %.not8, label %13, label %.critedge

.critedge:                                        ; preds = %8, %10
  %12 = tail call i32 @pthread_cond_wait(ptr noundef nonnull %7, ptr noundef nonnull %3) #3
  br label %8, !llvm.loop !13

13:                                               ; preds = %10
  %14 = tail call i32 @pthread_mutex_unlock(ptr noundef nonnull %3) #3
  br label %15

15:                                               ; preds = %1, %13
  ret void
}

; Function Attrs: nounwind
declare i32 @pthread_mutex_lock(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind
declare i32 @pthread_mutex_unlock(ptr noundef) local_unnamed_addr #1

declare i32 @pthread_cond_wait(ptr 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 = { nounwind "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, !7, i64 16}
!6 = !{!"", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 24, !8, i64 32, !8, i64 72, !8, i64 120, !11, i64 168, !8, i64 176}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = !{!6, !11, i64 168}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,LICMPass,LoopSimplifyPass,SROAPass,SimplifyCFGPass,TailCallElimPass