; LLVM IR from jorgemf/c-evolutionary-library :: examples/tsp (AlgorithmTSP)

; 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: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN12AlgorithmTSP10readMatrixERSt14basic_ifstreamIcSt11char_traitsIcEEiPPd(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(256) %1, i32 noundef %2, ptr noundef %3) #1 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i8, align 1
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca double, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !5
  %14 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #2
  store i8 1, ptr %9, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %51, %4
  %16 = load i32, ptr %10, align 4, !tbaa !9
  %17 = load i32, ptr %7, align 4, !tbaa !9
  %18 = icmp slt i32 %16, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %15
  store i32 2, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  br label %54

20:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #2
  store i32 0, ptr %12, align 4, !tbaa !9
  br label %21

21:                                               ; preds = %47, %20
  %22 = load i32, ptr %12, align 4, !tbaa !9
  %23 = load i32, ptr %7, align 4, !tbaa !9
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %21
  store i32 5, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #2
  br label %50

26:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #2
  store double 0.000000e+00, ptr %13, align 8, !tbaa !13
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %27, align 8, !tbaa !15
  %29 = getelementptr i8, ptr %28, i64 -24
  %30 = load i64, ptr %29, align 8
  %31 = getelementptr inbounds i8, ptr %27, i64 %30
  %32 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264) %31)
  br i1 %32, label %33, label %34

33:                                               ; preds = %26
  store i8 0, ptr %9, align 1, !tbaa !11
  br label %37

34:                                               ; preds = %26
  %35 = load ptr, ptr %6, align 8, !tbaa !5
  %36 = call noundef double @_ZN12AlgorithmTSP14readNextNumberERSt14basic_ifstreamIcSt11char_traitsIcEE(ptr noundef nonnull align 8 dereferenceable(88) %14, ptr noundef nonnull align 8 dereferenceable(256) %35)
  store double %36, ptr %13, align 8, !tbaa !13
  br label %37

37:                                               ; preds = %34, %33
  %38 = load double, ptr %13, align 8, !tbaa !13
  %39 = load ptr, ptr %8, align 8, !tbaa !5
  %40 = load i32, ptr %10, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds ptr, ptr %39, i64 %41
  %43 = load ptr, ptr %42, align 8, !tbaa !5
  %44 = load i32, ptr %12, align 4, !tbaa !9
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds double, ptr %43, i64 %45
  store double %38, ptr %46, align 8, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #2
  br label %47

47:                                               ; preds = %37
  %48 = load i32, ptr %12, align 4, !tbaa !9
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %12, align 4, !tbaa !9
  br label %21, !llvm.loop !17

50:                                               ; preds = %25
  br label %51

51:                                               ; preds = %50
  %52 = load i32, ptr %10, align 4, !tbaa !9
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %10, align 4, !tbaa !9
  br label %15, !llvm.loop !19

54:                                               ; preds = %19
  %55 = load i8, ptr %9, align 1, !tbaa !11, !range !20, !noundef !21
  %56 = trunc i8 %55 to i1
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #2
  ret i1 %56
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef double @_ZN12AlgorithmTSP14readNextNumberERSt14basic_ifstreamIcSt11char_traitsIcEE(ptr noundef nonnull align 8 dereferenceable(88), ptr noundef nonnull align 8 dereferenceable(256)) #1 align 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 = { 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 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"double", !7, i64 0}
!15 = !{!16, !16, i64 0}
!16 = !{!"vtable pointer", !8, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}
!19 = distinct !{!19, !18}
!20 = !{i8 0, i8 2}
!21 = !{}


; 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 uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN12AlgorithmTSP10readMatrixERSt14basic_ifstreamIcSt11char_traitsIcEEiPPd(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(256) %1, i32 noundef %2, ptr nocapture noundef readonly %3) local_unnamed_addr #0 align 2 {
  %5 = icmp sgt i32 %2, 0
  br i1 %5, label %.preheader.us.preheader, label %._crit_edge21

.preheader.us.preheader:                          ; preds = %4
  %wide.trip.count25 = zext nneg i32 %2 to i64
  br label %.preheader.us

.preheader.us:                                    ; preds = %.preheader.us.preheader, %._crit_edge.us
  %indvars.iv23 = phi i64 [ 0, %.preheader.us.preheader ], [ %indvars.iv.next24, %._crit_edge.us ]
  %.01519.us = phi i1 [ true, %.preheader.us.preheader ], [ %.2.us, %._crit_edge.us ]
  %6 = getelementptr inbounds ptr, ptr %3, i64 %indvars.iv23
  br label %7

7:                                                ; preds = %.preheader.us, %15
  %indvars.iv = phi i64 [ 0, %.preheader.us ], [ %indvars.iv.next, %15 ]
  %.117.us = phi i1 [ %.01519.us, %.preheader.us ], [ %.2.us, %15 ]
  %8 = load ptr, ptr %1, align 8, !tbaa !5
  %9 = getelementptr i8, ptr %8, i64 -24
  %10 = load i64, ptr %9, align 8
  %11 = getelementptr inbounds i8, ptr %1, i64 %10
  %12 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE3eofEv(ptr noundef nonnull align 8 dereferenceable(264) %11)
  br i1 %12, label %15, label %13

13:                                               ; preds = %7
  %14 = tail call noundef double @_ZN12AlgorithmTSP14readNextNumberERSt14basic_ifstreamIcSt11char_traitsIcEE(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull align 8 dereferenceable(256) %1)
  br label %15

15:                                               ; preds = %13, %7
  %.2.us = phi i1 [ %.117.us, %13 ], [ false, %7 ]
  %.0.us = phi double [ %14, %13 ], [ 0.000000e+00, %7 ]
  %16 = load ptr, ptr %6, align 8, !tbaa !8
  %17 = getelementptr inbounds double, ptr %16, i64 %indvars.iv
  store double %.0.us, ptr %17, align 8, !tbaa !11
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count25
  br i1 %exitcond.not, label %._crit_edge.us, label %7, !llvm.loop !13

._crit_edge.us:                                   ; preds = %15
  %indvars.iv.next24 = add nuw nsw i64 %indvars.iv23, 1
  %exitcond26.not = icmp eq i64 %indvars.iv.next24, %wide.trip.count25
  br i1 %exitcond26.not, label %._crit_edge21, label %.preheader.us, !llvm.loop !15

._crit_edge21:                                    ; preds = %._crit_edge.us, %4
  %.015.lcssa = phi i1 [ true, %4 ], [ %.2.us, %._crit_edge.us ]
  ret i1 %.015.lcssa
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef double @_ZN12AlgorithmTSP14readNextNumberERSt14basic_ifstreamIcSt11char_traitsIcEE(ptr noundef nonnull align 8 dereferenceable(88), ptr noundef nonnull align 8 dereferenceable(256)) local_unnamed_addr #0 align 2

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" }

!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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !10, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}


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