; LLVM IR from ryanlayer/giggle :: src (pq)

; 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.pri_queue_t = type { ptr, i32, i32 }
%struct.q_elem_t = type { ptr, %struct.priority }
%struct.priority = type { i32, [50 x i8] }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

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

10:                                               ; preds = %2
  store ptr null, ptr %3, align 8
  br label %28

11:                                               ; preds = %2
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %21

14:                                               ; preds = %11
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.pri_queue_t, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !12
  %19 = getelementptr inbounds %struct.q_elem_t, ptr %18, i64 1
  %20 = getelementptr inbounds %struct.q_elem_t, ptr %19, i32 0, i32 1
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %15, ptr align 8 %20, i64 56, i1 false), !tbaa.struct !13
  br label %21

21:                                               ; preds = %14, %11
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.pri_queue_t, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  %25 = getelementptr inbounds %struct.q_elem_t, ptr %24, i64 1
  %26 = getelementptr inbounds %struct.q_elem_t, ptr %25, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8, !tbaa !16
  store ptr %27, ptr %3, align 8
  br label %28

28:                                               ; preds = %21, %10
  %29 = load ptr, ptr %3, align 8
  ret ptr %29
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !11, i64 8}
!10 = !{!"", !6, i64 0, !11, i64 8, !11, i64 12}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 0}
!13 = !{i64 0, i64 4, !14, i64 4, i64 50, !15}
!14 = !{!11, !11, i64 0}
!15 = !{!7, !7, i64 0}
!16 = !{!17, !6, i64 0}
!17 = !{!"", !6, i64 0, !18, i64 8}
!18 = !{!"", !11, i64 0, !7, i64 4}


; 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 nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) uwtable
define dso_local ptr @priq_top(ptr nocapture noundef readonly %0, ptr noundef writeonly %1) local_unnamed_addr #1 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load i32, ptr %3, align 8, !tbaa !5
  %5 = icmp eq i32 %4, 1
  br i1 %5, label %14, label %6

6:                                                ; preds = %2
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %10, label %7

7:                                                ; preds = %6
  %8 = load ptr, ptr %0, align 8, !tbaa !11
  %9 = getelementptr inbounds i8, ptr %8, i64 72
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(56) %1, ptr noundef nonnull align 8 dereferenceable(56) %9, i64 56, i1 false), !tbaa.struct !12
  br label %10

10:                                               ; preds = %7, %6
  %11 = load ptr, ptr %0, align 8, !tbaa !11
  %12 = getelementptr inbounds i8, ptr %11, i64 64
  %13 = load ptr, ptr %12, align 8, !tbaa !15
  br label %14

14:                                               ; preds = %2, %10
  %.0 = phi ptr [ %13, %10 ], [ null, %2 ]
  ret ptr %.0
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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, !10, i64 8}
!6 = !{!"", !7, i64 0, !10, i64 8, !10, i64 12}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{i64 0, i64 4, !13, i64 4, i64 50, !14}
!13 = !{!10, !10, i64 0}
!14 = !{!8, !8, i64 0}
!15 = !{!16, !7, i64 0}
!16 = !{!"", !7, i64 0, !17, i64 8}
!17 = !{!"", !10, i64 0, !8, i64 4}


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