; LLVM IR from o0o0o0o0o0o0o/image-processing-from-scratch :: ImageMatting/Eigen/blas/f2c (complexdots)

; 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.complex = type { float, float }

; Function Attrs: nounwind uwtable
define dso_local <2 x float> @cdotc_(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #0 {
  %6 = alloca %struct.complex, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store ptr %2, ptr %9, align 8, !tbaa !5
  store ptr %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !5
  %12 = load ptr, ptr %10, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.complex, ptr %12, i32 -1
  store ptr %13, ptr %10, align 8, !tbaa !5
  %14 = load ptr, ptr %8, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.complex, ptr %14, i32 -1
  store ptr %15, ptr %8, align 8, !tbaa !5
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = load ptr, ptr %8, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.complex, ptr %17, i64 1
  %19 = load ptr, ptr %9, align 8, !tbaa !5
  %20 = load ptr, ptr %10, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.complex, ptr %20, i64 1
  %22 = load ptr, ptr %11, align 8, !tbaa !5
  %23 = call i32 @cdotcw_(ptr noundef %16, ptr noundef %18, ptr noundef %19, ptr noundef %21, ptr noundef %22, ptr noundef %6)
  %24 = load <2 x float>, ptr %6, align 4
  ret <2 x float> %24
}

declare i32 @cdotcw_(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nounwind 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 = { "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/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"

%struct.complex = type { float, float }

; Function Attrs: nounwind uwtable
define dso_local <2 x float> @cdotc_(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) local_unnamed_addr #0 {
  %6 = alloca %struct.complex, align 8
  %7 = call i32 @cdotcw_(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef nonnull %6) #2
  %8 = load <2 x float>, ptr %6, align 8
  ret <2 x float> %8
}

declare i32 @cdotcw_(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

attributes #0 = { nounwind 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 = { "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 #2 = { nounwind }

!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: GlobalOptPass,InferAlignmentPass,InstCombinePass,SROAPass