; LLVM IR from mitdbg/deneva :: concurrency_control/maat.ll (ZN9TimeTable4initEv)

; 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"

%class.mem_alloc = type { i8 }
%class.TimeTable = type { i64, ptr, %union.sem_t }
%union.sem_t = type { i64, [24 x i8] }
%struct.TimeTableNode = type { ptr, ptr, %union.pthread_mutex_t }
%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 }

@g_inflight_max = external global i32, align 4
@mem_allocator = external global %class.mem_alloc, 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: mustprogress uwtable
define dso_local void @_ZN9TimeTable4initEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  %5 = load i32, ptr @g_inflight_max, align 4, !tbaa !9
  %6 = add nsw i32 %5, 1
  %7 = sext i32 %6 to i64
  %8 = getelementptr inbounds %class.TimeTable, ptr %4, i32 0, i32 0
  store i64 %7, ptr %8, align 8, !tbaa !11
  %9 = getelementptr inbounds %class.TimeTable, ptr %4, i32 0, i32 0
  %10 = load i64, ptr %9, align 8, !tbaa !11
  %11 = mul i64 56, %10
  %12 = call noundef ptr @_ZN9mem_alloc5allocEm(ptr noundef nonnull align 1 dereferenceable(1) @mem_allocator, i64 noundef %11)
  %13 = getelementptr inbounds %class.TimeTable, ptr %4, i32 0, i32 1
  store ptr %12, ptr %13, align 8, !tbaa !14
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  store i64 0, ptr %3, align 8, !tbaa !15
  br label %14

14:                                               ; preds = %25, %1
  %15 = load i64, ptr %3, align 8, !tbaa !15
  %16 = getelementptr inbounds %class.TimeTable, ptr %4, i32 0, i32 0
  %17 = load i64, ptr %16, align 8, !tbaa !11
  %18 = icmp ult i64 %15, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  br label %28

20:                                               ; preds = %14
  %21 = getelementptr inbounds %class.TimeTable, ptr %4, i32 0, i32 1
  %22 = load ptr, ptr %21, align 8, !tbaa !14
  %23 = load i64, ptr %3, align 8, !tbaa !15
  %24 = getelementptr inbounds %struct.TimeTableNode, ptr %22, i64 %23
  call void @_ZN13TimeTableNode4initEv(ptr noundef nonnull align 8 dereferenceable(56) %24)
  br label %25

25:                                               ; preds = %20
  %26 = load i64, ptr %3, align 8, !tbaa !15
  %27 = add i64 %26, 1
  store i64 %27, ptr %3, align 8, !tbaa !15
  br label %14, !llvm.loop !16

28:                                               ; preds = %19
  ret void
}

declare noundef ptr @_ZN9mem_alloc5allocEm(ptr noundef nonnull align 1 dereferenceable(1), i64 noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN13TimeTableNode4initEv(ptr noundef nonnull align 8 dereferenceable(56)) #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { mustprogress 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTS9TimeTable", !13, i64 0, !6, i64 8, !7, i64 16}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !6, i64 8}
!15 = !{!13, !13, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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"

%class.mem_alloc = type { i8 }
%struct.TimeTableNode = type { ptr, ptr, %union.pthread_mutex_t }
%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 }

@g_inflight_max = external local_unnamed_addr global i32, align 4
@mem_allocator = external global %class.mem_alloc, align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9TimeTable4initEv(ptr nocapture noundef nonnull align 8 dereferenceable(48) %0) local_unnamed_addr #0 align 2 {
  %2 = load i32, ptr @g_inflight_max, align 4, !tbaa !5
  %3 = add nsw i32 %2, 1
  %4 = sext i32 %3 to i64
  store i64 %4, ptr %0, align 8, !tbaa !9
  %5 = mul nsw i64 %4, 56
  %6 = tail call noundef ptr @_ZN9mem_alloc5allocEm(ptr noundef nonnull align 1 dereferenceable(1) @mem_allocator, i64 noundef %5)
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %6, ptr %7, align 8, !tbaa !13
  %8 = load i64, ptr %0, align 8, !tbaa !9
  %.not = icmp eq i64 %8, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.03 = phi i64 [ %11, %.lr.ph ], [ 0, %1 ]
  %9 = load ptr, ptr %7, align 8, !tbaa !13
  %10 = getelementptr inbounds %struct.TimeTableNode, ptr %9, i64 %.03
  tail call void @_ZN13TimeTableNode4initEv(ptr noundef nonnull align 8 dereferenceable(56) %10)
  %11 = add nuw i64 %.03, 1
  %12 = load i64, ptr %0, align 8, !tbaa !9
  %13 = icmp ult i64 %11, %12
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !14
}

declare noundef ptr @_ZN9mem_alloc5allocEm(ptr noundef nonnull align 1 dereferenceable(1), i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN13TimeTableNode4initEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

attributes #0 = { mustprogress 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 = { mustprogress 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" }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTS9TimeTable", !11, i64 0, !12, i64 8, !7, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = !{!10, !12, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass