; LLVM IR from ShahjalalShohag/code-library :: Strings/String Hashing With Updates and Reverse.ll (ZplSt5arrayIiLm2EEi)

; 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.std::array" = type { [2 x i32] }

@_ZL3MOD = external hidden constant %"struct.std::array", align 4

; Function Attrs: mustprogress nounwind uwtable
define dso_local i64 @_ZplSt5arrayIiLm2EEi(i64 %0, i32 noundef %1) #0 {
  %3 = alloca %"struct.std::array", align 4
  %4 = alloca %"struct.std::array", align 4
  %5 = alloca i32, align 4
  %6 = getelementptr inbounds %"struct.std::array", ptr %4, i32 0, i32 0
  store i64 %0, ptr %6, align 4
  store i32 %1, ptr %5, align 4, !tbaa !5
  %7 = getelementptr inbounds %"struct.std::array", ptr %3, i32 0, i32 0
  %8 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %4, i64 noundef 0) #1
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = add nsw i32 %9, %10
  %12 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) @_ZL3MOD, i64 noundef 0) #1
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = srem i32 %11, %13
  store i32 %14, ptr %7, align 4, !tbaa !5
  %15 = getelementptr inbounds i32, ptr %7, i64 1
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %4, i64 noundef 1) #1
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %18 = load i32, ptr %5, align 4, !tbaa !5
  %19 = add nsw i32 %17, %18
  %20 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) @_ZL3MOD, i64 noundef 1) #1
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %22 = srem i32 %19, %21
  store i32 %22, ptr %15, align 4, !tbaa !5
  %23 = getelementptr inbounds %"struct.std::array", ptr %3, i32 0, i32 0
  %24 = load i64, ptr %23, align 4
  ret i64 %24
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8), i64 noundef) #0 align 2

attributes #0 = { mustprogress 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 #1 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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"

%"struct.std::array" = type { [2 x i32] }

@_ZL3MOD = external hidden constant %"struct.std::array", align 4

; Function Attrs: mustprogress nounwind uwtable
define dso_local i64 @_ZplSt5arrayIiLm2EEi(i64 %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca %"struct.std::array", align 8
  store i64 %0, ptr %3, align 8
  %4 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %3, i64 noundef 0) #1
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %6 = add nsw i32 %5, %1
  %7 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) @_ZL3MOD, i64 noundef 0) #1
  %8 = load i32, ptr %7, align 4, !tbaa !5
  %9 = srem i32 %6, %8
  %10 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) %3, i64 noundef 1) #1
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = add nsw i32 %11, %1
  %13 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8) @_ZL3MOD, i64 noundef 1) #1
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = srem i32 %12, %14
  %.sroa.2.0.insert.ext = zext i32 %15 to i64
  %.sroa.2.0.insert.shift = shl nuw i64 %.sroa.2.0.insert.ext, 32
  %.sroa.0.0.insert.ext = zext i32 %9 to i64
  %.sroa.0.0.insert.insert = or disjoint i64 %.sroa.2.0.insert.shift, %.sroa.0.0.insert.ext
  ret i64 %.sroa.0.0.insert.insert
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt5arrayIiLm2EEixEm(ptr noundef nonnull align 4 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

attributes #0 = { mustprogress 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 #1 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferAlignmentPass,InstCombinePass,ReassociatePass,SROAPass