; LLVM IR from buresjan/optim_lbm :: nomad/src/Math/ArrayOfDouble.ll (ZN9NOMAD_4_313ArrayOfDouble16roundToPrecisionERKS0_)

; 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.NOMAD_4_3::ArrayOfDouble" = type { ptr, i64, ptr }
%"class.NOMAD_4_3::Double" = type <{ ptr, double, i8, [7 x i8] }>

; 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: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9NOMAD_4_313ArrayOfDouble16roundToPrecisionERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i8, align 1
  %6 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #3
  store i8 0, ptr %5, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !11
  br label %8

8:                                                ; preds = %25, %2
  %9 = load i64, ptr %6, align 8, !tbaa !11
  %10 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %7, i32 0, i32 1
  %11 = load i64, ptr %10, align 8, !tbaa !13
  %12 = icmp ult i64 %9, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %28

14:                                               ; preds = %8
  %15 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %7, i32 0, i32 2
  %16 = load ptr, ptr %15, align 8, !tbaa !15
  %17 = load i64, ptr %6, align 8, !tbaa !11
  %18 = getelementptr inbounds %"class.NOMAD_4_3::Double", ptr %16, i64 %17
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load i64, ptr %6, align 8, !tbaa !11
  %21 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %20)
  %22 = call noundef zeroext i1 @_ZN9NOMAD_4_36Double16roundToPrecisionERKS0_(ptr noundef nonnull align 8 dereferenceable(17) %18, ptr noundef nonnull align 8 dereferenceable(17) %21)
  br i1 %22, label %23, label %24

23:                                               ; preds = %14
  store i8 1, ptr %5, align 1, !tbaa !9
  br label %24

24:                                               ; preds = %23, %14
  br label %25

25:                                               ; preds = %24
  %26 = load i64, ptr %6, align 8, !tbaa !11
  %27 = add i64 %26, 1
  store i64 %27, ptr %6, align 8, !tbaa !11
  br label %8, !llvm.loop !16

28:                                               ; preds = %13
  %29 = load i8, ptr %5, align 1, !tbaa !9, !range !18, !noundef !19
  %30 = trunc i8 %29 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #3
  ret i1 %30
}

declare noundef zeroext i1 @_ZN9NOMAD_4_36Double16roundToPrecisionERKS0_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { "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 = !{!"bool", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !12, i64 8}
!14 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !12, i64 8, !6, i64 16}
!15 = !{!14, !6, i64 16}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}
!18 = !{i8 0, i8 2}
!19 = !{}


; 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"

%"class.NOMAD_4_3::Double" = type <{ ptr, double, i8, [7 x i8] }>

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9NOMAD_4_313ArrayOfDouble16roundToPrecisionERKS0_(ptr nocapture noundef nonnull readonly align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load i64, ptr %3, align 8, !tbaa !5
  %.not = icmp eq i64 %4, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  br label %6

._crit_edge:                                      ; preds = %6, %2
  %.06.lcssa = phi i1 [ false, %2 ], [ %spec.select, %6 ]
  ret i1 %.06.lcssa

6:                                                ; preds = %.lr.ph, %6
  %.08 = phi i64 [ 0, %.lr.ph ], [ %11, %6 ]
  %.067 = phi i1 [ false, %.lr.ph ], [ %spec.select, %6 ]
  %7 = load ptr, ptr %5, align 8, !tbaa !11
  %8 = getelementptr inbounds %"class.NOMAD_4_3::Double", ptr %7, i64 %.08
  %9 = tail call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.08)
  %10 = tail call noundef zeroext i1 @_ZN9NOMAD_4_36Double16roundToPrecisionERKS0_(ptr noundef nonnull align 8 dereferenceable(17) %8, ptr noundef nonnull align 8 dereferenceable(17) %9)
  %spec.select = select i1 %10, i1 true, i1 %.067
  %11 = add nuw i64 %.08, 1
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = icmp ult i64 %11, %12
  br i1 %13, label %6, label %._crit_edge, !llvm.loop !12
}

declare noundef zeroext i1 @_ZN9NOMAD_4_36Double16roundToPrecisionERKS0_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) local_unnamed_addr #1

attributes #0 = { 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 #1 = { "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" }

!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, !7, i64 8}
!6 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !7, i64 8, !10, i64 16}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: AggressiveInstCombinePass,CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass