; LLVM IR from matz/streem :: src (core)

; 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.strm_stream = type { i32, i32, i32, ptr, ptr, ptr, ptr, ptr, i64, i64, ptr, i32, ptr, i32 }

; Function Attrs: nounwind uwtable
declare dso_local ptr @strm_task_new(ptr noundef, i64 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @strm_task_add(ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local void @strm_task_push(ptr noundef %0, ptr noundef %1, i64 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.strm_stream, ptr %7, i32 0, i32 2
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = icmp eq i32 %9, 4
  br i1 %10, label %16, label %11

11:                                               ; preds = %3
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.strm_stream, ptr %12, i32 0, i32 2
  %14 = load i32, ptr %13, align 8, !tbaa !11
  %15 = icmp eq i32 %14, 3
  br i1 %15, label %16, label %17

16:                                               ; preds = %11, %3
  br label %22

17:                                               ; preds = %11
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i64, ptr %6, align 8, !tbaa !9
  %21 = call ptr @strm_task_new(ptr noundef %19, i64 noundef %20)
  call void @strm_task_add(ptr noundef %18, ptr noundef %21)
  br label %22

22:                                               ; preds = %17, %16
  ret void
}

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" }

!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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !13, i64 8}
!12 = !{!"strm_stream", !13, i64 0, !13, i64 4, !13, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !10, i64 56, !10, i64 64, !6, i64 72, !13, i64 80, !6, i64 88, !13, i64 96}
!13 = !{!"int", !7, 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: nounwind uwtable
declare dso_local ptr @strm_task_new(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @strm_task_add(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @strm_task_push(ptr noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %.off = add i32 %5, -3
  %switch = icmp ult i32 %.off, 2
  br i1 %switch, label %8, label %6

6:                                                ; preds = %3
  %7 = tail call ptr @strm_task_new(ptr noundef %1, i64 noundef %2)
  tail call void @strm_task_add(ptr noundef nonnull %0, ptr noundef %7)
  br label %8

8:                                                ; preds = %3, %6
  ret void
}

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" }

!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 = !{!"strm_stream", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !10, i64 48, !11, i64 56, !11, i64 64, !10, i64 72, !7, i64 80, !10, i64 88, !7, i64 96}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"long", !8, i64 0}


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