; LLVM IR from zisisvakras/crossw :: src (maps)

; 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.Map = type { ptr, i32, i32 }

; 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: nounwind uwtable
define dso_local i32 @fc_check(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.Map, ptr %10, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  store ptr %12, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.Map, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !9
  store ptr %15, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.Map, ptr %16, i32 0, i32 1
  %18 = load i32, ptr %17, align 8, !tbaa !12
  store i32 %18, ptr %8, align 4, !tbaa !13
  br label %19

19:                                               ; preds = %33, %2
  %20 = load i32, ptr %8, align 4, !tbaa !13
  %21 = add nsw i32 %20, -1
  store i32 %21, ptr %8, align 4, !tbaa !13
  %22 = icmp ne i32 %20, 0
  br i1 %22, label %23, label %34

23:                                               ; preds = %19
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds i64, ptr %24, i32 1
  store ptr %25, ptr %6, align 8, !tbaa !5
  %26 = load i64, ptr %24, align 8, !tbaa !14
  %27 = load ptr, ptr %7, align 8, !tbaa !5
  %28 = getelementptr inbounds i64, ptr %27, i32 1
  store ptr %28, ptr %7, align 8, !tbaa !5
  %29 = load i64, ptr %27, align 8, !tbaa !14
  %30 = and i64 %26, %29
  %31 = icmp ne i64 %30, 0
  br i1 %31, label %32, label %33

32:                                               ; preds = %23
  store i32 0, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %35

33:                                               ; preds = %23
  br label %19, !llvm.loop !16

34:                                               ; preds = %19
  store i32 1, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %35

35:                                               ; preds = %34, %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %36 = load i32, ptr %3, align 4
  ret i32 %36
}

attributes #0 = { nocallback nofree nosync 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" }
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 = !{!10, !6, i64 0}
!10 = !{!"Map", !6, i64 0, !11, i64 8, !11, i64 12}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!11, !11, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"long long", !7, i64 0}
!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"

; Function Attrs: nofree norecurse nosync nounwind memory(read, inaccessiblemem: none) uwtable
define dso_local range(i32 0, 2) i32 @fc_check(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = load ptr, ptr %1, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load i32, ptr %5, align 8, !tbaa !11
  br label %7

7:                                                ; preds = %8, %2
  %.07 = phi ptr [ %3, %2 ], [ %10, %8 ]
  %.06 = phi ptr [ %4, %2 ], [ %12, %8 ]
  %.0 = phi i32 [ %6, %2 ], [ %9, %8 ]
  %.not = icmp eq i32 %.0, 0
  br i1 %.not, label %15, label %8

8:                                                ; preds = %7
  %9 = add nsw i32 %.0, -1
  %10 = getelementptr inbounds i8, ptr %.07, i64 8
  %11 = load i64, ptr %.07, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %.06, i64 8
  %13 = load i64, ptr %.06, align 8, !tbaa !12
  %14 = and i64 %13, %11
  %.not9 = icmp eq i64 %14, 0
  br i1 %.not9, label %7, label %15, !llvm.loop !14

15:                                               ; preds = %7, %8
  %.08 = phi i32 [ 0, %8 ], [ 1, %7 ]
  ret i32 %.08
}

attributes #0 = { nofree norecurse nosync nounwind memory(read, 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, !7, i64 0}
!6 = !{!"Map", !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, !10, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"long long", !8, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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