; LLVM IR from syby119/CG-projects :: doc/c++ tutorial/1. new grammer/4. operator overloading (main)

; 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.Vector3f = type { float, float, float }

; Function Attrs: nounwind uwtable
define dso_local { <2 x float>, float } @add(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca %struct.Vector3f, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca { <2 x float>, float }, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.Vector3f, ptr %7, i32 0, i32 0
  %9 = load float, ptr %8, align 4, !tbaa !9
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.Vector3f, ptr %10, i32 0, i32 0
  %12 = load float, ptr %11, align 4, !tbaa !9
  %13 = fadd float %9, %12
  %14 = getelementptr inbounds %struct.Vector3f, ptr %3, i32 0, i32 0
  store float %13, ptr %14, align 4, !tbaa !9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.Vector3f, ptr %15, i32 0, i32 1
  %17 = load float, ptr %16, align 4, !tbaa !12
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.Vector3f, ptr %18, i32 0, i32 1
  %20 = load float, ptr %19, align 4, !tbaa !12
  %21 = fadd float %17, %20
  %22 = getelementptr inbounds %struct.Vector3f, ptr %3, i32 0, i32 1
  store float %21, ptr %22, align 4, !tbaa !12
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.Vector3f, ptr %23, i32 0, i32 2
  %25 = load float, ptr %24, align 4, !tbaa !13
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.Vector3f, ptr %26, i32 0, i32 2
  %28 = load float, ptr %27, align 4, !tbaa !13
  %29 = fadd float %25, %28
  %30 = getelementptr inbounds %struct.Vector3f, ptr %3, i32 0, i32 2
  store float %29, ptr %30, align 4, !tbaa !13
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %6, ptr align 4 %3, i64 12, i1 false)
  %31 = load { <2 x float>, float }, ptr %6, align 8
  ret { <2 x float>, float } %31
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

attributes #0 = { 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 nounwind willreturn memory(argmem: readwrite) }

!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/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"Vector3f", !11, i64 0, !11, i64 4, !11, i64 8}
!11 = !{!"float", !7, i64 0}
!12 = !{!10, !11, i64 4}
!13 = !{!10, !11, 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local { <2 x float>, float } @add(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load <2 x float>, ptr %0, align 4, !tbaa !5
  %4 = load <2 x float>, ptr %1, align 4, !tbaa !5
  %5 = fadd <2 x float> %3, %4
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load float, ptr %6, align 4, !tbaa !9
  %8 = getelementptr inbounds i8, ptr %1, i64 8
  %9 = load float, ptr %8, align 4, !tbaa !9
  %10 = fadd float %7, %9
  %.fca.0.insert = insertvalue { <2 x float>, float } poison, <2 x float> %5, 0
  %.fca.1.insert = insertvalue { <2 x float>, float } %.fca.0.insert, float %10, 1
  ret { <2 x float>, float } %.fca.1.insert
}

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" }

!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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"Vector3f", !6, i64 0, !6, i64 4, !6, i64 8}


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