; LLVM IR from ayush-tulsyan/ACM-ICPC-Handbook :: code/Dates.ll (Z9dateToIntiii)

; 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
define dso_local noundef i32 @_Z9dateToIntiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = add nsw i32 %7, 4800
  %9 = load i32, ptr %4, align 4, !tbaa !5
  %10 = sub nsw i32 %9, 14
  %11 = sdiv i32 %10, 12
  %12 = add nsw i32 %8, %11
  %13 = mul nsw i32 1461, %12
  %14 = sdiv i32 %13, 4
  %15 = load i32, ptr %4, align 4, !tbaa !5
  %16 = sub nsw i32 %15, 2
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = sub nsw i32 %17, 14
  %19 = sdiv i32 %18, 12
  %20 = mul nsw i32 %19, 12
  %21 = sub nsw i32 %16, %20
  %22 = mul nsw i32 367, %21
  %23 = sdiv i32 %22, 12
  %24 = add nsw i32 %14, %23
  %25 = load i32, ptr %6, align 4, !tbaa !5
  %26 = add nsw i32 %25, 4900
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = sub nsw i32 %27, 14
  %29 = sdiv i32 %28, 12
  %30 = add nsw i32 %26, %29
  %31 = sdiv i32 %30, 100
  %32 = mul nsw i32 3, %31
  %33 = sdiv i32 %32, 4
  %34 = sub nsw i32 %24, %33
  %35 = load i32, ptr %5, align 4, !tbaa !5
  %36 = add nsw i32 %34, %35
  %37 = sub nsw i32 %36, 32075
  ret i32 %37
}

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" }

!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 nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef range(i32 -2147483648, 2147451573) i32 @_Z9dateToIntiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = add nsw i32 %0, -14
  %5 = sdiv i32 %4, 12
  %6 = add i32 %5, %2
  %7 = mul i32 %6, 1461
  %8 = add i32 %7, 7012800
  %9 = sdiv i32 %8, 4
  %10 = add nsw i32 %0, -2
  %.neg = mul nsw i32 %5, -12
  %11 = add i32 %10, %.neg
  %12 = mul nsw i32 %11, 367
  %13 = sdiv i32 %12, 12
  %14 = add i32 %6, 4900
  %15 = sdiv i32 %14, 100
  %16 = mul nsw i32 %15, 3
  %.neg7 = sdiv i32 %16, -4
  %17 = add i32 %1, -32075
  %18 = add i32 %17, %13
  %19 = add i32 %18, %9
  %20 = add i32 %19, %.neg7
  ret i32 %20
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass