; LLVM IR from narke/Aragveli :: src/kernel/process (mutex)

; 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.mutex_t = type { ptr, i64, %struct.anon }
%struct.anon = type { ptr, ptr }
%struct.thread = type { i32, i64, [32 x i8], i32, ptr, i8, %struct.anon.0 }
%struct.anon.0 = type { ptr, ptr }

; 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 @mutex_destroy(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
  br label %4

4:                                                ; preds = %46, %1
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.mutex_t, ptr %5, i32 0, i32 2
  %7 = getelementptr inbounds %struct.anon, ptr %6, i32 0, i32 0
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  store ptr %8, ptr %3, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %47

10:                                               ; preds = %4
  br label %11

11:                                               ; preds = %10
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.thread, ptr %12, i32 0, i32 6
  %14 = getelementptr inbounds %struct.anon.0, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !13
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %28

17:                                               ; preds = %11
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.thread, ptr %18, i32 0, i32 6
  %20 = getelementptr inbounds %struct.anon.0, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !16
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.thread, ptr %22, i32 0, i32 6
  %24 = getelementptr inbounds %struct.anon.0, ptr %23, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8, !tbaa !13
  %26 = getelementptr inbounds %struct.thread, ptr %25, i32 0, i32 6
  %27 = getelementptr inbounds %struct.anon.0, ptr %26, i32 0, i32 1
  store ptr %21, ptr %27, align 8, !tbaa !16
  br label %36

28:                                               ; preds = %11
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.thread, ptr %29, i32 0, i32 6
  %31 = getelementptr inbounds %struct.anon.0, ptr %30, i32 0, i32 1
  %32 = load ptr, ptr %31, align 8, !tbaa !16
  %33 = load ptr, ptr %2, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.mutex_t, ptr %33, i32 0, i32 2
  %35 = getelementptr inbounds %struct.anon, ptr %34, i32 0, i32 1
  store ptr %32, ptr %35, align 8, !tbaa !17
  br label %36

36:                                               ; preds = %28, %17
  %37 = load ptr, ptr %3, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.thread, ptr %37, i32 0, i32 6
  %39 = getelementptr inbounds %struct.anon.0, ptr %38, i32 0, i32 0
  %40 = load ptr, ptr %39, align 8, !tbaa !13
  %41 = load ptr, ptr %3, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.thread, ptr %41, i32 0, i32 6
  %43 = getelementptr inbounds %struct.anon.0, ptr %42, i32 0, i32 1
  %44 = load ptr, ptr %43, align 8, !tbaa !16
  store ptr %40, ptr %44, align 8, !tbaa !5
  br label %45

45:                                               ; preds = %36
  br label %46

46:                                               ; preds = %45
  br label %4, !llvm.loop !18

47:                                               ; preds = %4
  %48 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %48)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

declare void @free(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, !6, i64 16}
!10 = !{!"", !6, i64 0, !11, i64 8, !12, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!"", !6, i64 0, !6, i64 8}
!13 = !{!14, !6, i64 72}
!14 = !{!"thread", !15, i64 0, !11, i64 8, !7, i64 16, !15, i64 48, !6, i64 56, !7, i64 64, !12, i64 72}
!15 = !{!"int", !7, i64 0}
!16 = !{!14, !6, i64 80}
!17 = !{!10, !6, i64 24}
!18 = distinct !{!18, !19}
!19 = !{!"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 @mutex_destroy(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not11 = icmp eq ptr %3, null
  br i1 %.not11, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %11
  %4 = phi ptr [ %12, %11 ], [ %3, %1 ]
  %5 = getelementptr inbounds i8, ptr %4, i64 72
  %6 = load ptr, ptr %5, align 8, !tbaa !12
  %.not10 = icmp eq ptr %6, null
  %7 = getelementptr inbounds i8, ptr %4, i64 80
  %8 = load ptr, ptr %7, align 8, !tbaa !15
  br i1 %.not10, label %11, label %9

9:                                                ; preds = %.lr.ph
  %10 = getelementptr inbounds i8, ptr %6, i64 80
  store ptr %8, ptr %10, align 8, !tbaa !15
  br label %11

11:                                               ; preds = %.lr.ph, %9
  store ptr %6, ptr %8, align 8, !tbaa !16
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %12, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !17

._crit_edge:                                      ; preds = %11, %1
  tail call void @free(ptr noundef nonnull %0)
  ret void
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture 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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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, !7, i64 16}
!6 = !{!"", !7, i64 0, !10, i64 8, !11, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"", !7, i64 0, !7, i64 8}
!12 = !{!13, !7, i64 72}
!13 = !{!"thread", !14, i64 0, !10, i64 8, !8, i64 16, !14, i64 48, !7, i64 56, !8, i64 64, !11, i64 72}
!14 = !{!"int", !8, i64 0}
!15 = !{!13, !7, i64 80}
!16 = !{!7, !7, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: BDCEPass,CorrelatedValuePropagationPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass