; LLVM IR from sbshah97/DS-Algo-Handbook :: labs/lab9/code/interval_bottom.ll (Z4copyii)

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

@in = external dso_local global [4 x %struct.interval], align 16
@order = external dso_local global [4 x %struct.interval], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z4copyii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  %5 = load i32, ptr %3, align 4, !tbaa !5
  %6 = sext i32 %5 to i64
  %7 = getelementptr inbounds [4 x %struct.interval], ptr @in, i64 0, i64 %6
  %8 = getelementptr inbounds %struct.interval, ptr %7, i32 0, i32 0
  %9 = load i32, ptr %8, align 4, !tbaa !9
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [4 x %struct.interval], ptr @order, i64 0, i64 %11
  %13 = getelementptr inbounds %struct.interval, ptr %12, i32 0, i32 0
  store i32 %9, ptr %13, align 4, !tbaa !9
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [4 x %struct.interval], ptr @in, i64 0, i64 %15
  %17 = getelementptr inbounds %struct.interval, ptr %16, i32 0, i32 1
  %18 = load i32, ptr %17, align 4, !tbaa !11
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [4 x %struct.interval], ptr @order, i64 0, i64 %20
  %22 = getelementptr inbounds %struct.interval, ptr %21, i32 0, i32 1
  store i32 %18, ptr %22, align 4, !tbaa !11
  %23 = load i32, ptr %3, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [4 x %struct.interval], ptr @in, i64 0, i64 %24
  %26 = getelementptr inbounds %struct.interval, ptr %25, i32 0, i32 2
  %27 = load i32, ptr %26, align 4, !tbaa !12
  %28 = load i32, ptr %4, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [4 x %struct.interval], ptr @order, i64 0, i64 %29
  %31 = getelementptr inbounds %struct.interval, ptr %30, i32 0, i32 2
  store i32 %27, ptr %31, align 4, !tbaa !12
  ret void
}

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"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS8interval", !6, i64 0, !6, i64 4, !6, i64 8}
!11 = !{!10, !6, i64 4}
!12 = !{!10, !6, i64 8}


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

@in = external dso_local local_unnamed_addr global [4 x %struct.interval], align 16
@order = external dso_local local_unnamed_addr global [4 x %struct.interval], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z4copyii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = sext i32 %0 to i64
  %4 = getelementptr inbounds [4 x %struct.interval], ptr @in, i64 0, i64 %3
  %5 = sext i32 %1 to i64
  %6 = getelementptr inbounds [4 x %struct.interval], ptr @order, i64 0, i64 %5
  %7 = load <2 x i32>, ptr %4, align 4, !tbaa !5
  store <2 x i32> %7, ptr %6, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  %9 = load i32, ptr %8, align 4, !tbaa !9
  %10 = getelementptr inbounds i8, ptr %6, i64 8
  store i32 %9, ptr %10, align 4, !tbaa !9
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: 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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTS8interval", !6, i64 0, !6, i64 4, !6, i64 8}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass