; LLVM IR from ERGO-Code/HiGHS :: src/ipm/ipx/utils.ll (ZN3ipx7InfnormERKSt8valarrayIdE)

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_ZN3ipx7InfnormERKSt8valarrayIdE(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
  %8 = alloca double, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store double 0.000000e+00, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %9, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = call noundef ptr @_ZSt5beginIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %10) #3
  store ptr %11, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = call noundef ptr @_ZSt3endIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %12) #3
  store ptr %13, ptr %6, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %26, %1
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = icmp ne ptr %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %29

19:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load double, ptr %20, align 8, !tbaa !9
  store double %21, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %22 = load double, ptr %7, align 8, !tbaa !9
  %23 = call noundef double @_ZSt3absd(double noundef %22)
  store double %23, ptr %8, align 8, !tbaa !9
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %8)
  %25 = load double, ptr %24, align 8, !tbaa !9
  store double %25, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %26

26:                                               ; preds = %19
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds double, ptr %27, i32 1
  store ptr %28, ptr %5, align 8, !tbaa !5
  br label %14

29:                                               ; preds = %18
  %30 = load double, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret double %30
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

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

; Function Attrs: mustprogress 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)) local_unnamed_addr #1

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN3ipx7InfnormERKSt8valarrayIdE(ptr noundef nonnull align 8 dereferenceable(16) %0) local_unnamed_addr #2 {
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  store double 0.000000e+00, ptr %2, align 8, !tbaa !5
  %4 = tail call noundef ptr @_ZSt5beginIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %0) #3
  %5 = tail call noundef ptr @_ZSt3endIdEPKT_RKSt8valarrayIS0_E(ptr noundef nonnull align 8 dereferenceable(16) %0) #3
  %.not8 = icmp eq ptr %4, %5
  br i1 %.not8, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  %6 = phi double [ 0.000000e+00, %1 ], [ %10, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  ret double %6

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.09 = phi ptr [ %11, %.lr.ph ], [ %4, %1 ]
  %7 = load double, ptr %.09, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %8 = call noundef double @_ZSt3absd(double noundef %7)
  store double %8, ptr %3, align 8, !tbaa !5
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %10 = load double, ptr %9, align 8, !tbaa !5
  store double %10, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  %11 = getelementptr inbounds i8, ptr %.09, i64 8
  %.not = icmp eq ptr %11, %5
  br i1 %.not, label %._crit_edge, label %.lr.ph
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIdERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

attributes #0 = { mustprogress 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 = { 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,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass