; LLVM IR from tangjz/acm-icpc :: lydsy/2956.ll (Z3sumii)

; 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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z3decRii(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z3sumii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 3323403, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %7 = load i32, ptr %4, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = load i32, ptr %4, align 4, !tbaa !5
  %10 = add nsw i32 %9, 1
  %11 = sext i32 %10 to i64
  %12 = mul nsw i64 %8, %11
  %13 = srem i64 %12, 19940417
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = mul nsw i32 %14, 2
  %16 = add nsw i32 %15, 1
  %17 = sext i32 %16 to i64
  %18 = mul nsw i64 %13, %17
  %19 = srem i64 %18, 19940417
  %20 = trunc i64 %19 to i32
  store i32 %20, ptr %6, align 4, !tbaa !5
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = sub nsw i32 %21, 1
  %23 = sext i32 %22 to i64
  %24 = load i32, ptr %3, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = mul nsw i64 %23, %25
  %27 = srem i64 %26, 19940417
  %28 = load i32, ptr %3, align 4, !tbaa !5
  %29 = mul nsw i32 %28, 2
  %30 = sub nsw i32 %29, 1
  %31 = sext i32 %30 to i64
  %32 = mul nsw i64 %27, %31
  %33 = srem i64 %32, 19940417
  %34 = trunc i64 %33 to i32
  call void @_Z3decRii(ptr noundef nonnull align 4 dereferenceable(4) %6, i32 noundef %34)
  %35 = load i32, ptr %6, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = mul nsw i64 %36, 3323403
  %38 = srem i64 %37, 19940417
  %39 = trunc i64 %38 to i32
  store i32 %39, ptr %6, align 4, !tbaa !5
  %40 = load i32, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %40
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z3decRii(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef range(i32 -19940416, 19940417) i32 @_Z3sumii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #2
  %4 = sext i32 %1 to i64
  %5 = add nsw i32 %1, 1
  %6 = sext i32 %5 to i64
  %7 = mul nsw i64 %6, %4
  %8 = srem i64 %7, 19940417
  %9 = shl nsw i32 %1, 1
  %10 = or disjoint i32 %9, 1
  %11 = sext i32 %10 to i64
  %12 = mul nsw i64 %8, %11
  %13 = srem i64 %12, 19940417
  %14 = trunc nsw i64 %13 to i32
  store i32 %14, ptr %3, align 4, !tbaa !5
  %15 = add nsw i32 %0, -1
  %16 = sext i32 %15 to i64
  %17 = sext i32 %0 to i64
  %18 = mul nsw i64 %16, %17
  %19 = srem i64 %18, 19940417
  %20 = shl nsw i32 %0, 1
  %21 = add nsw i32 %20, -1
  %22 = sext i32 %21 to i64
  %23 = mul nsw i64 %19, %22
  %24 = srem i64 %23, 19940417
  %25 = trunc nsw i64 %24 to i32
  call void @_Z3decRii(ptr noundef nonnull align 4 dereferenceable(4) %3, i32 noundef %25)
  %26 = load i32, ptr %3, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = mul nsw i64 %27, 3323403
  %29 = srem i64 %28, 19940417
  %30 = trunc nsw i64 %29 to i32
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #2
  ret i32 %30
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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