; LLVM IR from alexzheng42/sDMD :: src (ToolFunctions)

; 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.StepPotenStr = type { double, double, double, ptr }

; 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: nounwind uwtable
define dso_local void @CalAccumulatedPoten(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  store double 0.000000e+00, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  store ptr null, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %5, ptr %4, align 8, !tbaa !5
  br label %6

6:                                                ; preds = %9, %1
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %18

9:                                                ; preds = %6
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.StepPotenStr, ptr %10, i32 0, i32 1
  %12 = load double, ptr %11, align 8, !tbaa !11
  %13 = load double, ptr %3, align 8, !tbaa !9
  %14 = fadd double %13, %12
  store double %14, ptr %3, align 8, !tbaa !9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.StepPotenStr, ptr %15, i32 0, i32 3
  %17 = load ptr, ptr %16, align 8, !tbaa !13
  store ptr %17, ptr %4, align 8, !tbaa !5
  br label %6, !llvm.loop !14

18:                                               ; preds = %6
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %19, ptr %4, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %23, %18
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %35

23:                                               ; preds = %20
  %24 = load double, ptr %3, align 8, !tbaa !9
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.StepPotenStr, ptr %25, i32 0, i32 2
  store double %24, ptr %26, align 8, !tbaa !16
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.StepPotenStr, ptr %27, i32 0, i32 1
  %29 = load double, ptr %28, align 8, !tbaa !11
  %30 = load double, ptr %3, align 8, !tbaa !9
  %31 = fsub double %30, %29
  store double %31, ptr %3, align 8, !tbaa !9
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.StepPotenStr, ptr %32, i32 0, i32 3
  %34 = load ptr, ptr %33, align 8, !tbaa !13
  store ptr %34, ptr %4, align 8, !tbaa !5
  br label %20, !llvm.loop !17

35:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"StepPotenStr", !10, i64 0, !10, i64 8, !10, i64 16, !6, i64 24}
!13 = !{!12, !6, i64 24}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!12, !10, i64 16}
!17 = distinct !{!17, !15}


; 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: nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @CalAccumulatedPoten(ptr noundef %0) local_unnamed_addr #0 {
  %.not15 = icmp eq ptr %0, null
  br i1 %.not15, label %._crit_edge, label %.lr.ph

.preheader:                                       ; preds = %.lr.ph
  br i1 %.not15, label %._crit_edge, label %.lr.ph21

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.017 = phi ptr [ %6, %.lr.ph ], [ %0, %1 ]
  %.01216 = phi double [ %4, %.lr.ph ], [ 0.000000e+00, %1 ]
  %2 = getelementptr inbounds i8, ptr %.017, i64 8
  %3 = load double, ptr %2, align 8, !tbaa !5
  %4 = fadd double %.01216, %3
  %5 = getelementptr inbounds i8, ptr %.017, i64 24
  %6 = load ptr, ptr %5, align 8, !tbaa !11
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %.preheader, label %.lr.ph, !llvm.loop !12

.lr.ph21:                                         ; preds = %.preheader, %.lr.ph21
  %.120 = phi ptr [ %12, %.lr.ph21 ], [ %0, %.preheader ]
  %.11319 = phi double [ %10, %.lr.ph21 ], [ %4, %.preheader ]
  %7 = getelementptr inbounds i8, ptr %.120, i64 16
  store double %.11319, ptr %7, align 8, !tbaa !14
  %8 = getelementptr inbounds i8, ptr %.120, i64 8
  %9 = load double, ptr %8, align 8, !tbaa !5
  %10 = fsub double %.11319, %9
  %11 = getelementptr inbounds i8, ptr %.120, i64 24
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %.not14 = icmp eq ptr %12, null
  br i1 %.not14, label %._crit_edge, label %.lr.ph21, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph21, %1, %.preheader
  ret void
}

attributes #0 = { nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) 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 8}
!6 = !{!"StepPotenStr", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24}
!7 = !{!"double", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 24}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{!6, !7, i64 16}
!15 = distinct !{!15, !13}


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