; 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.1 = external hidden unnamed_addr constant [71 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.15 = external hidden unnamed_addr constant [12 x i8], align 1
@__func__.ast_canmerge = external hidden unnamed_addr constant [13 x i8], align 1

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

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

7:                                                ; preds = %2
  br label %9

8:                                                ; preds = %2
  call void @ponyint_assert_fail(ptr noundef @.str.15, ptr noundef @.str.1, i64 noundef 1277, ptr noundef @__func__.ast_canmerge)
  br label %9

9:                                                ; preds = %8, %7
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %13

12:                                               ; preds = %9
  br label %14

13:                                               ; preds = %9
  call void @ponyint_assert_fail(ptr noundef @.str.13, ptr noundef @.str.1, i64 noundef 1278, ptr noundef @__func__.ast_canmerge)
  br label %14

14:                                               ; preds = %13, %12
  br label %15

15:                                               ; preds = %20, %14
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.ast_t, ptr %16, i32 0, i32 1
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = icmp eq ptr %18, null
  br i1 %19, label %20, label %24

20:                                               ; preds = %15
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.ast_t, ptr %21, i32 0, i32 3
  %23 = load ptr, ptr %22, align 8, !tbaa !13
  store ptr %23, ptr %3, align 8, !tbaa !5
  br label %15, !llvm.loop !14

24:                                               ; preds = %15
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.ast_t, ptr %25, i32 0, i32 1
  %27 = load ptr, ptr %26, align 8, !tbaa !9
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.ast_t, ptr %28, i32 0, i32 1
  %30 = load ptr, ptr %29, align 8, !tbaa !9
  %31 = call zeroext i1 @symtab_can_merge_public(ptr noundef %27, ptr noundef %30)
  ret i1 %31
}

declare zeroext i1 @symtab_can_merge_public(ptr noundef, ptr noundef) #0

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" }

!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, !6, i64 8}
!10 = !{!"ast_t", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !11, i64 56, !12, i64 60}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_Bool", !7, i64 0}
!13 = !{!10, !6, i64 24}
!14 = distinct !{!14, !15}
!15 = !{!"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.1 = external hidden unnamed_addr constant [71 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.15 = external hidden unnamed_addr constant [12 x i8], align 1
@__func__.ast_canmerge = 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 zeroext i1 @ast_canmerge(ptr noundef readonly %0, ptr noundef readonly %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.15, ptr noundef nonnull @.str.1, i64 noundef 1277, ptr noundef nonnull @__func__.ast_canmerge) #2
  br label %4

4:                                                ; preds = %2, %3
  %.not7 = icmp eq ptr %1, null
  br i1 %.not7, label %5, label %6

5:                                                ; preds = %4
  tail call void @ponyint_assert_fail(ptr noundef nonnull @.str.13, ptr noundef nonnull @.str.1, i64 noundef 1278, ptr noundef nonnull @__func__.ast_canmerge) #2
  br label %6

6:                                                ; preds = %4, %5
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %9 = icmp eq ptr %8, null
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %6, %.lr.ph
  %.08 = phi ptr [ %11, %.lr.ph ], [ %0, %6 ]
  %10 = getelementptr inbounds i8, ptr %.08, i64 24
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %11, i64 8
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = icmp eq ptr %13, null
  br i1 %14, label %.lr.ph, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph, %6
  %.lcssa = phi ptr [ %8, %6 ], [ %13, %.lr.ph ]
  %15 = getelementptr inbounds i8, ptr %1, i64 8
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  %17 = tail call zeroext i1 @symtab_can_merge_public(ptr noundef nonnull %.lcssa, ptr noundef %16) #2
  ret i1 %17
}

declare zeroext i1 @symtab_can_merge_public(ptr noundef, ptr noundef) local_unnamed_addr #0

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, !7, i64 8}
!6 = !{!"ast_t", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !10, i64 56, !11, i64 60}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_Bool", !8, i64 0}
!12 = !{!6, !7, i64 24}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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