; LLVM IR from smv1999/CompetitiveProgrammingQuestionBank :: Numbers/Complex_numbers.ll (ZN7complex3subES_S_)

; 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"

%class.complex = type { float, float }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7complex3subES_S_(ptr noundef nonnull align 4 dereferenceable(8) %0, <2 x float> %1, <2 x float> %2) #0 align 2 {
  %4 = alloca %class.complex, align 4
  %5 = alloca %class.complex, align 4
  %6 = alloca ptr, align 8
  store <2 x float> %1, ptr %4, align 4
  store <2 x float> %2, ptr %5, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  %7 = load ptr, ptr %6, align 8
  %8 = getelementptr inbounds %class.complex, ptr %4, i32 0, i32 0
  %9 = load float, ptr %8, align 4, !tbaa !9
  %10 = getelementptr inbounds %class.complex, ptr %5, i32 0, i32 0
  %11 = load float, ptr %10, align 4, !tbaa !9
  %12 = fsub float %9, %11
  %13 = getelementptr inbounds %class.complex, ptr %7, i32 0, i32 0
  store float %12, ptr %13, align 4, !tbaa !9
  %14 = getelementptr inbounds %class.complex, ptr %4, i32 0, i32 1
  %15 = load float, ptr %14, align 4, !tbaa !12
  %16 = getelementptr inbounds %class.complex, ptr %5, i32 0, i32 1
  %17 = load float, ptr %16, align 4, !tbaa !12
  %18 = fsub float %15, %17
  %19 = getelementptr inbounds %class.complex, ptr %7, i32 0, i32 1
  store float %18, ptr %19, align 4, !tbaa !12
  call void @_ZN7complex7displayEv(ptr noundef nonnull align 4 dereferenceable(8) %7)
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7complex7displayEv(ptr noundef nonnull align 4 dereferenceable(8)) #1 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="64" "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 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTS7complex", !11, i64 0, !11, i64 4}
!11 = !{!"float", !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 uwtable
define dso_local void @_ZN7complex3subES_S_(ptr noundef nonnull align 4 dereferenceable(8) %0, <2 x float> %1, <2 x float> %2) local_unnamed_addr #0 align 2 {
  %4 = fsub <2 x float> %1, %2
  store <2 x float> %4, ptr %0, align 4, !tbaa !5
  tail call void @_ZN7complex7displayEv(ptr noundef nonnull align 4 dereferenceable(8) %0)
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7complex7displayEv(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="64" "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 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++ TBAA"}


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