; LLVM IR from RichtersFinger/ChainSimulation :: Simulation.ll (ZN10Simulation14lengthOfVectorE6Vector)

; 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.Vector = type { double, double }

; Function Attrs: nounwind
declare double @sqrt(double noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN10Simulation14lengthOfVectorE6Vector(ptr noundef nonnull align 8 dereferenceable(104) %0, double %1, double %2) #1 align 2 {
  %4 = alloca %class.Vector, align 8
  %5 = alloca ptr, align 8
  %6 = getelementptr inbounds { double, double }, ptr %4, i32 0, i32 0
  store double %1, ptr %6, align 8
  %7 = getelementptr inbounds { double, double }, ptr %4, i32 0, i32 1
  store double %2, ptr %7, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %5, align 8
  %9 = getelementptr inbounds %class.Vector, ptr %4, i32 0, i32 0
  %10 = load double, ptr %9, align 8, !tbaa !9
  %11 = getelementptr inbounds %class.Vector, ptr %4, i32 0, i32 0
  %12 = load double, ptr %11, align 8, !tbaa !9
  %13 = getelementptr inbounds %class.Vector, ptr %4, i32 0, i32 1
  %14 = load double, ptr %13, align 8, !tbaa !12
  %15 = getelementptr inbounds %class.Vector, ptr %4, i32 0, i32 1
  %16 = load double, ptr %15, align 8, !tbaa !12
  %17 = fmul double %14, %16
  %18 = call double @llvm.fmuladd.f64(double %10, double %12, double %17)
  %19 = call double @sqrt(double noundef %18) #3
  ret double %19
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #2

attributes #0 = { nounwind "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 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 #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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)"}
!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 = !{!"_ZTS6Vector", !11, i64 0, !11, i64 8}
!11 = !{!"double", !7, i64 0}
!12 = !{!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(none) uwtable
define dso_local noundef double @_ZN10Simulation14lengthOfVectorE6Vector(ptr nocapture noundef nonnull readnone align 8 dereferenceable(104) %0, double %1, double %2) local_unnamed_addr #0 align 2 {
  %4 = fmul double %2, %2
  %5 = tail call double @llvm.fmuladd.f64(double %1, double %1, double %4)
  %sqrt = tail call double @llvm.sqrt.f64(double %5)
  ret double %sqrt
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.sqrt.f64(double) #2

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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)"}


; Effective O3 passes: AggressiveInstCombinePass,GlobalOptPass,InferFunctionAttrsPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass