; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2007-08/nabor.ll (Z4distR5pointS0_)

; 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.point = type { i32, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z4distR5pointS0_(ptr noundef nonnull align 4 dereferenceable(12) %0, ptr noundef nonnull align 4 dereferenceable(12) %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.point, ptr %5, i32 0, i32 0
  %7 = load i32, ptr %6, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.point, ptr %8, i32 0, i32 0
  %10 = load i32, ptr %9, align 4, !tbaa !9
  %11 = sub nsw i32 %7, %10
  %12 = call i32 @llvm.abs.i32(i32 %11, i1 true)
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.point, ptr %13, i32 0, i32 1
  %15 = load i32, ptr %14, align 4, !tbaa !12
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.point, ptr %16, i32 0, i32 1
  %18 = load i32, ptr %17, align 4, !tbaa !12
  %19 = sub nsw i32 %15, %18
  %20 = call i32 @llvm.abs.i32(i32 %19, i1 true)
  %21 = add nsw i32 %12, %20
  ret i32 %21
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #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 speculatable willreturn memory(none) }

!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 0}
!10 = !{!"_ZTS5point", !11, i64 0, !11, i64 4, !11, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 4}


; 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(argmem: read) uwtable
define dso_local noundef range(i32 0, -2147483648) i32 @_Z4distR5pointS0_(ptr nocapture noundef nonnull readonly align 4 dereferenceable(12) %0, ptr nocapture noundef nonnull readonly align 4 dereferenceable(12) %1) local_unnamed_addr #0 {
  %3 = load <2 x i32>, ptr %0, align 4, !tbaa !5
  %4 = load <2 x i32>, ptr %1, align 4, !tbaa !5
  %5 = sub nsw <2 x i32> %3, %4
  %6 = tail call <2 x i32> @llvm.abs.v2i32(<2 x i32> %5, i1 true)
  %shift = shufflevector <2 x i32> %6, <2 x i32> poison, <2 x i32> <i32 1, i32 poison>
  %7 = add nuw nsw <2 x i32> %shift, %6
  %8 = extractelement <2 x i32> %7, i64 0
  ret i32 %8
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare <2 x i32> @llvm.abs.v2i32(<2 x i32>, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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 speculatable willreturn memory(none) }

!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,GlobalDCEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SLPVectorizerPass,SROAPass,TailCallElimPass,VectorCombinePass