; LLVM IR from stan-dev/math :: lib/tbb_2020.3/src/test/test_malloc_init_shutdown.ll (Z11TestKeyDtorv)

; 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.TestThread = type { i8 }

; 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

declare void @scalable_free(ptr noundef) #1

declare ptr @scalable_malloc(i64 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11TestKeyDtorv() #2 {
  %1 = alloca ptr, align 8
  %2 = alloca i32, align 4
  %3 = alloca %struct.TestThread, align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #4
  %4 = call ptr @scalable_malloc(i64 noundef 32768)
  store ptr %4, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  store i32 0, ptr %2, align 4, !tbaa !9
  br label %5

5:                                                ; preds = %10, %0
  %6 = load i32, ptr %2, align 4, !tbaa !9
  %7 = icmp slt i32 %6, 4
  br i1 %7, label %9, label %8

8:                                                ; preds = %5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %13

9:                                                ; preds = %5
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #4
  call void @_ZN10TestThreadC2Ei(ptr noundef nonnull align 1 dereferenceable(1) %3, i32 noundef 1)
  call void @_Z17NativeParallelForIi10TestThreadEvT_RKT0_(i32 noundef 1, ptr noundef nonnull align 1 dereferenceable(1) %3)
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #4
  br label %10

10:                                               ; preds = %9
  %11 = load i32, ptr %2, align 4, !tbaa !9
  %12 = add nsw i32 %11, 1
  store i32 %12, ptr %2, align 4, !tbaa !9
  br label %5, !llvm.loop !11

13:                                               ; preds = %8
  %14 = load ptr, ptr %1, align 8, !tbaa !5
  call void @scalable_free(ptr noundef %14)
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #4
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z17NativeParallelForIi10TestThreadEvT_RKT0_(i32 noundef, ptr noundef nonnull align 1 dereferenceable(1)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN10TestThreadC2Ei(ptr noundef nonnull align 1 dereferenceable(1), i32 noundef) unnamed_addr #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { 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 = distinct !{!11, !12}
!12 = !{!"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"

%struct.TestThread = type { i8 }

; 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

declare void @scalable_free(ptr noundef) local_unnamed_addr #1

declare ptr @scalable_malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11TestKeyDtorv() local_unnamed_addr #2 {
  %1 = alloca %struct.TestThread, align 1
  %2 = tail call ptr @scalable_malloc(i64 noundef 32768)
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #4
  call void @_ZN10TestThreadC2Ei(ptr noundef nonnull align 1 dereferenceable(1) %1, i32 noundef 1)
  call void @_Z17NativeParallelForIi10TestThreadEvT_RKT0_(i32 noundef 1, ptr noundef nonnull align 1 dereferenceable(1) %1)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #4
  call void @_ZN10TestThreadC2Ei(ptr noundef nonnull align 1 dereferenceable(1) %1, i32 noundef 1)
  call void @_Z17NativeParallelForIi10TestThreadEvT_RKT0_(i32 noundef 1, ptr noundef nonnull align 1 dereferenceable(1) %1)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #4
  call void @_ZN10TestThreadC2Ei(ptr noundef nonnull align 1 dereferenceable(1) %1, i32 noundef 1)
  call void @_Z17NativeParallelForIi10TestThreadEvT_RKT0_(i32 noundef 1, ptr noundef nonnull align 1 dereferenceable(1) %1)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %1) #4
  call void @_ZN10TestThreadC2Ei(ptr noundef nonnull align 1 dereferenceable(1) %1, i32 noundef 1)
  call void @_Z17NativeParallelForIi10TestThreadEvT_RKT0_(i32 noundef 1, ptr noundef nonnull align 1 dereferenceable(1) %1)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %1) #4
  call void @scalable_free(ptr noundef %2)
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z17NativeParallelForIi10TestThreadEvT_RKT0_(i32 noundef, ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN10TestThreadC2Ei(ptr noundef nonnull align 1 dereferenceable(1), i32 noundef) unnamed_addr #3 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { 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)"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass