; LLVM IR from ouuan/CPTH :: tests/ModInt/ModInt.ll (ZNK4CPTH6ModIntngEv)

; 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"

%"class.CPTH::ModInt" = type { i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local i64 @_ZNK4CPTH6ModIntngEv(ptr noundef nonnull align 4 dereferenceable(8) %0) #0 align 2 {
  %2 = alloca %"class.CPTH::ModInt", align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8
  %5 = getelementptr inbounds %"class.CPTH::ModInt", ptr %4, i32 0, i32 1
  %6 = load i32, ptr %5, align 4, !tbaa !9
  %7 = getelementptr inbounds %"class.CPTH::ModInt", ptr %4, i32 0, i32 0
  %8 = load i32, ptr %7, align 4, !tbaa !12
  %9 = icmp ne i32 %8, 0
  br i1 %9, label %10, label %16

10:                                               ; preds = %1
  %11 = getelementptr inbounds %"class.CPTH::ModInt", ptr %4, i32 0, i32 1
  %12 = load i32, ptr %11, align 4, !tbaa !9
  %13 = getelementptr inbounds %"class.CPTH::ModInt", ptr %4, i32 0, i32 0
  %14 = load i32, ptr %13, align 4, !tbaa !12
  %15 = sub nsw i32 %12, %14
  br label %17

16:                                               ; preds = %1
  br label %17

17:                                               ; preds = %16, %10
  %18 = phi i32 [ %15, %10 ], [ 0, %16 ]
  %19 = sext i32 %18 to i64
  call void @_ZN4CPTH6ModIntC1Eix(ptr noundef nonnull align 4 dereferenceable(8) %2, i32 noundef %6, i64 noundef %19)
  %20 = load i64, ptr %2, align 4
  ret i64 %20
}

declare void @_ZN4CPTH6ModIntC1Eix(ptr, i32, i64)

attributes #0 = { mustprogress 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++ TBAA"}
!9 = !{!10, !11, i64 4}
!10 = !{!"_ZTSN4CPTH6ModIntE", !11, i64 0, !11, i64 4}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, 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"

%"class.CPTH::ModInt" = type { i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local i64 @_ZNK4CPTH6ModIntngEv(ptr nocapture noundef nonnull readonly align 4 dereferenceable(8) %0) local_unnamed_addr #0 align 2 {
  %2 = alloca %"class.CPTH::ModInt", align 8
  %3 = getelementptr inbounds i8, ptr %0, i64 4
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = load i32, ptr %0, align 4, !tbaa !10
  %.not = icmp eq i32 %5, 0
  %6 = sub nsw i32 %4, %5
  %narrow = select i1 %.not, i32 0, i32 %6
  %7 = sext i32 %narrow to i64
  call void @_ZN4CPTH6ModIntC1Eix(ptr noundef nonnull align 4 dereferenceable(8) %2, i32 noundef %4, i64 noundef %7)
  %8 = load i64, ptr %2, align 8
  ret i64 %8
}

declare void @_ZN4CPTH6ModIntC1Eix(ptr, i32, i64) local_unnamed_addr

attributes #0 = { mustprogress 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 4}
!6 = !{!"_ZTSN4CPTH6ModIntE", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 0}


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