; LLVM IR from chrr/libECP :: src (util)

; 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"

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; 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

; Function Attrs: nounwind uwtable
define dso_local double @distance(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds double, ptr %8, i64 0
  %10 = load double, ptr %9, align 8, !tbaa !9
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds double, ptr %11, i64 0
  %13 = load double, ptr %12, align 8, !tbaa !9
  %14 = fsub double %10, %13
  store double %14, ptr %5, align 8, !tbaa !9
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds double, ptr %15, i64 1
  %17 = load double, ptr %16, align 8, !tbaa !9
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds double, ptr %18, i64 1
  %20 = load double, ptr %19, align 8, !tbaa !9
  %21 = fsub double %17, %20
  store double %21, ptr %6, align 8, !tbaa !9
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds double, ptr %22, i64 2
  %24 = load double, ptr %23, align 8, !tbaa !9
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds double, ptr %25, i64 2
  %27 = load double, ptr %26, align 8, !tbaa !9
  %28 = fsub double %24, %27
  store double %28, ptr %7, align 8, !tbaa !9
  %29 = load double, ptr %5, align 8, !tbaa !9
  %30 = load double, ptr %5, align 8, !tbaa !9
  %31 = load double, ptr %6, align 8, !tbaa !9
  %32 = load double, ptr %6, align 8, !tbaa !9
  %33 = fmul double %31, %32
  %34 = call double @llvm.fmuladd.f64(double %29, double %30, double %33)
  %35 = load double, ptr %7, align 8, !tbaa !9
  %36 = load double, ptr %7, align 8, !tbaa !9
  %37 = call double @llvm.fmuladd.f64(double %35, double %36, double %34)
  %38 = call double @sqrt(double noundef %37) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret double %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 #4 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}


; 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 nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local double @distance(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 {
  %3 = load double, ptr %0, align 8, !tbaa !5
  %4 = load double, ptr %1, align 8, !tbaa !5
  %5 = fsub double %3, %4
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load double, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %1, i64 8
  %9 = load double, ptr %8, align 8, !tbaa !5
  %10 = fsub double %7, %9
  %11 = getelementptr inbounds i8, ptr %0, i64 16
  %12 = load double, ptr %11, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %1, i64 16
  %14 = load double, ptr %13, align 8, !tbaa !5
  %15 = fsub double %12, %14
  %16 = fmul double %10, %10
  %17 = tail call double @llvm.fmuladd.f64(double %5, double %5, double %16)
  %18 = tail call double @llvm.fmuladd.f64(double %15, double %15, double %17)
  %sqrt = tail call double @llvm.sqrt.f64(double %18)
  ret double %sqrt
}

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

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { 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 #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/C++ TBAA"}


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