; LLVM IR from ERGO-Code/HiGHS :: src/ipm/ipx/utils.ll (ZN3ipx7TwonormERKSt8valarrayIdE)

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZSt5beginIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16)) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZSt3endIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16)) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN3ipx7TwonormERKSt8valarrayIdE(ptr noundef nonnull align 8 dereferenceable(16) %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca double, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  store double 0.000000e+00, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %8, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = call noundef ptr @_ZSt5beginIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %9) #5
  store ptr %10, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = call noundef ptr @_ZSt3endIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %11) #5
  store ptr %12, ptr %6, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %25, %1
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = icmp ne ptr %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %28

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load double, ptr %19, align 8, !tbaa !9
  store double %20, ptr %7, align 8, !tbaa !9
  %21 = load double, ptr %7, align 8, !tbaa !9
  %22 = load double, ptr %7, align 8, !tbaa !9
  %23 = load double, ptr %3, align 8, !tbaa !9
  %24 = call double @llvm.fmuladd.f64(double %21, double %22, double %23)
  store double %24, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %25

25:                                               ; preds = %18
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds double, ptr %26, i32 1
  store ptr %27, ptr %5, align 8, !tbaa !5
  br label %13

28:                                               ; preds = %17
  %29 = load double, ptr %3, align 8, !tbaa !9
  %30 = call double @sqrt(double noundef %29) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret double %30
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #3

; Function Attrs: nounwind
declare double @sqrt(double noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 = { 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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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 #5 = { 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, !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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZSt5beginIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZSt3endIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN3ipx7TwonormERKSt8valarrayIdE(ptr noundef nonnull align 8 dereferenceable(16) %0) local_unnamed_addr #1 {
  %2 = tail call noundef ptr @_ZSt5beginIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %0) #4
  %3 = tail call noundef ptr @_ZSt3endIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %0) #4
  %.not12 = icmp eq ptr %2, %3
  br i1 %.not12, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.0.lcssa = phi double [ 0.000000e+00, %1 ], [ %6, %.lr.ph ]
  %4 = tail call double @sqrt(double noundef %.0.lcssa) #4
  ret double %4

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.014 = phi double [ %6, %.lr.ph ], [ 0.000000e+00, %1 ]
  %.01113 = phi ptr [ %7, %.lr.ph ], [ %2, %1 ]
  %5 = load double, ptr %.01113, align 8, !tbaa !5
  %6 = tail call double @llvm.fmuladd.f64(double %5, double %5, double %.014)
  %7 = getelementptr inbounds i8, ptr %.01113, i64 8
  %.not = icmp eq ptr %7, %3
  br i1 %.not, label %._crit_edge, label %.lr.ph
}

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

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @sqrt(double noundef) local_unnamed_addr #3

attributes #0 = { inlinehint 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 = { 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { mustprogress nofree nounwind willreturn memory(write) "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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass