; LLVM IR from kylewray/nova :: src/mdp/algorithms (ssp_lao_star_cpu)

; 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"

%"struct.nova::NovaMDP" = type { i32, i32, i32, float, i32, float, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%"struct.nova::NovaSSPLAOStarCPU" = type { ptr, i32, ptr, ptr }

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef float @_ZSt4fabsf(float noundef) #1

; 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
define dso_local void @_ZN4nova30ssp_lao_star_reset_visited_cpuEPKNS_7NovaMDPEPNS_17NovaSSPLAOStarCPUE(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  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 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %29, %2
  %7 = load i32, ptr %5, align 4, !tbaa !9
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %"struct.nova::NovaMDP", ptr %8, i32 0, i32 0
  %10 = load i32, ptr %9, align 8, !tbaa !11
  %11 = icmp ult i32 %7, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %32

13:                                               ; preds = %6
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %"struct.nova::NovaSSPLAOStarCPU", ptr %14, i32 0, i32 2
  %16 = load ptr, ptr %15, align 8, !tbaa !14
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = zext i32 %17 to i64
  %19 = getelementptr inbounds float, ptr %16, i64 %18
  %20 = load float, ptr %19, align 4, !tbaa !16
  %21 = call noundef float @_ZSt4fabsf(float noundef %20)
  %22 = fneg float %21
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %"struct.nova::NovaSSPLAOStarCPU", ptr %23, i32 0, i32 2
  %25 = load ptr, ptr %24, align 8, !tbaa !14
  %26 = load i32, ptr %5, align 4, !tbaa !9
  %27 = zext i32 %26 to i64
  %28 = getelementptr inbounds float, ptr %25, i64 %27
  store float %22, ptr %28, align 4, !tbaa !16
  br label %29

29:                                               ; preds = %13
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = add i32 %30, 1
  store i32 %31, ptr %5, align 4, !tbaa !9
  br label %6, !llvm.loop !17

32:                                               ; preds = %12
  ret void
}

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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTSN4nova7NovaMDPE", !10, i64 0, !10, i64 4, !10, i64 8, !13, i64 12, !10, i64 16, !13, i64 20, !10, i64 24, !10, i64 28, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88}
!13 = !{!"float", !7, i64 0}
!14 = !{!15, !6, i64 16}
!15 = !{!"_ZTSN4nova17NovaSSPLAOStarCPUE", !6, i64 0, !10, i64 8, !6, i64 16, !6, i64 24}
!16 = !{!13, !13, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; 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 float @_ZSt4fabsf(float noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4nova30ssp_lao_star_reset_visited_cpuEPKNS_7NovaMDPEPNS_17NovaSSPLAOStarCPUE(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 {
  %3 = load i32, ptr %0, align 8, !tbaa !5
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %4 = getelementptr inbounds i8, ptr %1, i64 16
  %.pre = load ptr, ptr %4, align 8, !tbaa !12
  br label %5

._crit_edge:                                      ; preds = %5, %2
  ret void

5:                                                ; preds = %.lr.ph, %5
  %6 = phi ptr [ %.pre, %.lr.ph ], [ %11, %5 ]
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %5 ]
  %7 = getelementptr inbounds float, ptr %6, i64 %indvars.iv
  %8 = load float, ptr %7, align 4, !tbaa !14
  %9 = tail call noundef float @_ZSt4fabsf(float noundef %8)
  %10 = fneg float %9
  %11 = load ptr, ptr %4, align 8, !tbaa !12
  %12 = getelementptr inbounds float, ptr %11, i64 %indvars.iv
  store float %10, ptr %12, align 4, !tbaa !14
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %13 = load i32, ptr %0, align 8, !tbaa !5
  %14 = zext i32 %13 to i64
  %15 = icmp ult i64 %indvars.iv.next, %14
  br i1 %15, label %5, label %._crit_edge, !llvm.loop !15
}

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" }

!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 0}
!6 = !{!"_ZTSN4nova7NovaMDPE", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 12, !7, i64 16, !10, i64 20, !7, i64 24, !7, i64 28, !11, i64 32, !11, i64 40, !11, i64 48, !11, i64 56, !11, i64 64, !11, i64 72, !11, i64 80, !11, i64 88}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"float", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!13, !11, i64 16}
!13 = !{!"_ZTSN4nova17NovaSSPLAOStarCPUE", !11, i64 0, !7, i64 8, !11, i64 16, !11, i64 24}
!14 = !{!10, !10, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass