; LLVM IR from ponylang/ponyc :: src/libponyc/ast (ast)

; 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.ast_t = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i8 }

@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [71 x i8], align 1
@__func__.ast_childidx = external hidden unnamed_addr constant [13 x i8], 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

declare void @ponyint_assert_fail(ptr noundef, ptr noundef, i64 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @ast_childidx(ptr noundef %0, i64 noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %8, label %9

8:                                                ; preds = %2
  br label %10

9:                                                ; preds = %2
  call void @ponyint_assert_fail(ptr noundef @.str, ptr noundef @.str.1, i64 noundef 1036, ptr noundef @__func__.ast_childidx)
  br label %10

10:                                               ; preds = %9, %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.ast_t, ptr %11, i32 0, i32 4
  %13 = load ptr, ptr %12, align 8, !tbaa !11
  store ptr %13, ptr %5, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %22, %10
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %20

17:                                               ; preds = %14
  %18 = load i64, ptr %4, align 8, !tbaa !9
  %19 = icmp ugt i64 %18, 0
  br label %20

20:                                               ; preds = %17, %14
  %21 = phi i1 [ false, %14 ], [ %19, %17 ]
  br i1 %21, label %22, label %28

22:                                               ; preds = %20
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.ast_t, ptr %23, i32 0, i32 5
  %25 = load ptr, ptr %24, align 8, !tbaa !15
  store ptr %25, ptr %5, align 8, !tbaa !5
  %26 = load i64, ptr %4, align 8, !tbaa !9
  %27 = add i64 %26, -1
  store i64 %27, ptr %4, align 8, !tbaa !9
  br label %14, !llvm.loop !16

28:                                               ; preds = %20
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret ptr %29
}

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 = { 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 #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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 32}
!12 = !{!"ast_t", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !13, i64 56, !14, i64 60}
!13 = !{!"int", !7, i64 0}
!14 = !{!"_Bool", !7, i64 0}
!15 = !{!12, !6, i64 40}
!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"

@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [71 x i8], align 1
@__func__.ast_childidx = external hidden unnamed_addr constant [13 x i8], align 1

declare void @ponyint_assert_fail(ptr noundef, ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @ast_childidx(ptr noundef readonly %0, i64 noundef %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %4

3:                                                ; preds = %2
  tail call void @ponyint_assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i64 noundef 1036, ptr noundef nonnull @__func__.ast_childidx) #2
  br label %4

4:                                                ; preds = %2, %3
  %5 = getelementptr inbounds i8, ptr %0, i64 32
  %.07 = load ptr, ptr %5, align 8, !tbaa !5
  %6 = icmp ne ptr %.07, null
  %7 = icmp ne i64 %1, 0
  %8 = and i1 %6, %7
  br i1 %8, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.09 = phi ptr [ %.0, %.lr.ph ], [ %.07, %4 ]
  %.068 = phi i64 [ %10, %.lr.ph ], [ %1, %4 ]
  %9 = getelementptr inbounds i8, ptr %.09, i64 40
  %10 = add i64 %.068, -1
  %.0 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = icmp ne ptr %.0, null
  %12 = icmp ne i64 %10, 0
  %13 = select i1 %11, i1 %12, i1 false
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %4
  %.0.lcssa = phi ptr [ %.07, %4 ], [ %.0, %.lr.ph ]
  ret ptr %.0.lcssa
}

attributes #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 = { 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass