; LLVM IR from yinqiwen/ardb :: src/common/util/time_helper.ll (ZN4ardb10add_microsER8timespecm)

; 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.timespec = type { i64, i64 }

; 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 nounwind uwtable
define dso_local void @_ZN4ardb10add_microsER8timespecm(ptr noundef nonnull align 8 dereferenceable(16) %0, i64 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %6 = load i64, ptr %4, align 8, !tbaa !9
  %7 = mul i64 %6, 1000
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.timespec, ptr %8, i32 0, i32 1
  %10 = load i64, ptr %9, align 8, !tbaa !11
  %11 = add i64 %7, %10
  store i64 %11, ptr %5, align 8, !tbaa !9
  %12 = load i64, ptr %5, align 8, !tbaa !9
  %13 = icmp uge i64 %12, 1000000000
  br i1 %13, label %14, label %25

14:                                               ; preds = %2
  %15 = load i64, ptr %5, align 8, !tbaa !9
  %16 = udiv i64 %15, 1000000000
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.timespec, ptr %17, i32 0, i32 0
  %19 = load i64, ptr %18, align 8, !tbaa !13
  %20 = add i64 %19, %16
  store i64 %20, ptr %18, align 8, !tbaa !13
  %21 = load i64, ptr %5, align 8, !tbaa !9
  %22 = urem i64 %21, 1000000000
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.timespec, ptr %23, i32 0, i32 1
  store i64 %22, ptr %24, align 8, !tbaa !11
  br label %29

25:                                               ; preds = %2
  %26 = load i64, ptr %5, align 8, !tbaa !9
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.timespec, ptr %27, i32 0, i32 1
  store i64 %26, ptr %28, align 8, !tbaa !11
  br label %29

29:                                               ; preds = %25, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTS8timespec", !10, i64 0, !10, i64 8}
!13 = !{!12, !10, 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @_ZN4ardb10add_microsER8timespecm(ptr nocapture noundef nonnull align 8 dereferenceable(16) %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = mul i64 %1, 1000
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %6 = add i64 %5, %3
  %7 = icmp ugt i64 %6, 999999999
  br i1 %7, label %8, label %13

8:                                                ; preds = %2
  %9 = udiv i64 %6, 1000000000
  %10 = load i64, ptr %0, align 8, !tbaa !10
  %11 = add i64 %10, %9
  store i64 %11, ptr %0, align 8, !tbaa !10
  %12 = urem i64 %6, 1000000000
  br label %13

13:                                               ; preds = %2, %8
  %storemerge = phi i64 [ %12, %8 ], [ %6, %2 ]
  store i64 %storemerge, ptr %4, align 8, !tbaa !5
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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, !7, i64 8}
!6 = !{!"_ZTS8timespec", !7, i64 0, !7, i64 8}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 0}


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