; LLVM IR from epicf/ef :: vec3d.ll (Z12vec3d_length5Vec3d)

; 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.Vec3d = type { [3 x double] }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_Z12vec3d_length5Vec3d(ptr noundef byval(%struct.Vec3d) align 8 %0) #0 {
  %2 = getelementptr inbounds %struct.Vec3d, ptr %0, i32 0, i32 0
  %3 = getelementptr inbounds [3 x double], ptr %2, i64 0, i64 0
  %4 = load double, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.Vec3d, ptr %0, i32 0, i32 0
  %6 = getelementptr inbounds [3 x double], ptr %5, i64 0, i64 0
  %7 = load double, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.Vec3d, ptr %0, i32 0, i32 0
  %9 = getelementptr inbounds [3 x double], ptr %8, i64 0, i64 1
  %10 = load double, ptr %9, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.Vec3d, ptr %0, i32 0, i32 0
  %12 = getelementptr inbounds [3 x double], ptr %11, i64 0, i64 1
  %13 = load double, ptr %12, align 8, !tbaa !5
  %14 = fmul double %10, %13
  %15 = call double @llvm.fmuladd.f64(double %4, double %7, double %14)
  %16 = getelementptr inbounds %struct.Vec3d, ptr %0, i32 0, i32 0
  %17 = getelementptr inbounds [3 x double], ptr %16, i64 0, i64 2
  %18 = load double, ptr %17, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.Vec3d, ptr %0, i32 0, i32 0
  %20 = getelementptr inbounds [3 x double], ptr %19, i64 0, i64 2
  %21 = load double, ptr %20, align 8, !tbaa !5
  %22 = call double @llvm.fmuladd.f64(double %18, double %21, double %15)
  %23 = call double @sqrt(double noundef %22) #3
  ret double %23
}

; Function Attrs: nounwind
declare double @sqrt(double noundef) #1

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

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" }
attributes #1 = { 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 #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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple 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.Vec3d = type { [3 x double] }

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef double @_Z12vec3d_length5Vec3d(ptr nocapture noundef readonly byval(%struct.Vec3d) align 8 %0) local_unnamed_addr #0 {
  %2 = load double, ptr %0, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load double, ptr %3, align 8, !tbaa !5
  %5 = fmul double %4, %4
  %6 = tail call double @llvm.fmuladd.f64(double %2, double %2, double %5)
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  %8 = load double, ptr %7, align 8, !tbaa !5
  %9 = tail call double @llvm.fmuladd.f64(double %8, double %8, double %6)
  %sqrt = tail call double @llvm.sqrt.f64(double %9)
  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(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" }
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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: AggressiveInstCombinePass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,TailCallElimPass