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

; 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.REMDTempStr = type { i32, double }

; 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 i32 @CheckEnd(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %26, %2
  %10 = load i32, ptr %7, align 4, !tbaa !9
  %11 = load i32, ptr %5, align 4, !tbaa !9
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  br label %29

14:                                               ; preds = %9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = load i32, ptr %7, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds %struct.REMDTempStr, ptr %15, i64 %17
  %19 = getelementptr inbounds %struct.REMDTempStr, ptr %18, i32 0, i32 1
  %20 = load double, ptr %19, align 8, !tbaa !11
  %21 = fcmp une double %20, 0.000000e+00
  br i1 %21, label %25, label %22

22:                                               ; preds = %14
  %23 = load i32, ptr %6, align 4, !tbaa !9
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %6, align 4, !tbaa !9
  br label %25

25:                                               ; preds = %22, %14
  br label %26

26:                                               ; preds = %25
  %27 = load i32, ptr %7, align 4, !tbaa !9
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %7, align 4, !tbaa !9
  br label %9, !llvm.loop !14

29:                                               ; preds = %13
  %30 = load i32, ptr %6, align 4, !tbaa !9
  %31 = load i32, ptr %5, align 4, !tbaa !9
  %32 = icmp eq i32 %30, %31
  br i1 %32, label %33, label %34

33:                                               ; preds = %29
  store i32 1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %35

34:                                               ; preds = %29
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %35

35:                                               ; preds = %34, %33
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %36 = load i32, ptr %3, align 4
  ret i32 %36
}

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 = !{!"int", !7, i64 0}
!11 = !{!12, !13, i64 8}
!12 = !{!"REMDTempStr", !10, i64 0, !13, i64 8}
!13 = !{!"double", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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"

%struct.REMDTempStr = type { i32, double }

; Function Attrs: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local range(i32 0, 2) i32 @CheckEnd(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = icmp sgt i32 %1, 0
  br i1 %3, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext nneg i32 %1 to i64
  %min.iters.check = icmp ult i32 %1, 5
  br i1 %min.iters.check, label %.lr.ph.preheader15, label %vector.ph

.lr.ph.preheader15:                               ; preds = %middle.block, %.lr.ph.preheader
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  %.0811.ph = phi i32 [ 0, %.lr.ph.preheader ], [ %28, %middle.block ]
  br label %.lr.ph

vector.ph:                                        ; preds = %.lr.ph.preheader
  %n.mod.vf = and i64 %wide.trip.count, 3
  %4 = icmp eq i64 %n.mod.vf, 0
  %5 = select i1 %4, i64 4, i64 %n.mod.vf
  %n.vec = sub nsw i64 %wide.trip.count, %5
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %vec.phi = phi <2 x i32> [ zeroinitializer, %vector.ph ], [ %25, %vector.body ]
  %vec.phi14 = phi <2 x i32> [ zeroinitializer, %vector.ph ], [ %26, %vector.body ]
  %6 = or disjoint i64 %index, 1
  %7 = or disjoint i64 %index, 2
  %8 = or disjoint i64 %index, 3
  %9 = getelementptr inbounds %struct.REMDTempStr, ptr %0, i64 %index, i32 1
  %10 = getelementptr inbounds %struct.REMDTempStr, ptr %0, i64 %6, i32 1
  %11 = getelementptr inbounds %struct.REMDTempStr, ptr %0, i64 %7, i32 1
  %12 = getelementptr inbounds %struct.REMDTempStr, ptr %0, i64 %8, i32 1
  %13 = load double, ptr %9, align 8, !tbaa !5
  %14 = load double, ptr %10, align 8, !tbaa !5
  %15 = insertelement <2 x double> poison, double %13, i64 0
  %16 = insertelement <2 x double> %15, double %14, i64 1
  %17 = load double, ptr %11, align 8, !tbaa !5
  %18 = load double, ptr %12, align 8, !tbaa !5
  %19 = insertelement <2 x double> poison, double %17, i64 0
  %20 = insertelement <2 x double> %19, double %18, i64 1
  %21 = fcmp oeq <2 x double> %16, zeroinitializer
  %22 = fcmp oeq <2 x double> %20, zeroinitializer
  %23 = zext <2 x i1> %21 to <2 x i32>
  %24 = zext <2 x i1> %22 to <2 x i32>
  %25 = add <2 x i32> %vec.phi, %23
  %26 = add <2 x i32> %vec.phi14, %24
  %index.next = add nuw i64 %index, 4
  %27 = icmp eq i64 %index.next, %n.vec
  br i1 %27, label %middle.block, label %vector.body, !llvm.loop !11

middle.block:                                     ; preds = %vector.body
  %bin.rdx = add <2 x i32> %26, %25
  %28 = tail call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> %bin.rdx)
  br label %.lr.ph.preheader15

._crit_edge:                                      ; preds = %.lr.ph, %2
  %.08.lcssa = phi i32 [ 0, %2 ], [ %.1, %.lr.ph ]
  %29 = icmp eq i32 %.08.lcssa, %1
  %. = zext i1 %29 to i32
  ret i32 %.

.lr.ph:                                           ; preds = %.lr.ph.preheader15, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ %indvars.iv.ph, %.lr.ph.preheader15 ]
  %.0811 = phi i32 [ %.1, %.lr.ph ], [ %.0811.ph, %.lr.ph.preheader15 ]
  %30 = getelementptr inbounds %struct.REMDTempStr, ptr %0, i64 %indvars.iv, i32 1
  %31 = load double, ptr %30, align 8, !tbaa !5
  %32 = fcmp oeq double %31, 0.000000e+00
  %33 = zext i1 %32 to i32
  %.1 = add nuw nsw i32 %.0811, %33
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !15
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.vector.reduce.add.v2i32(<2 x i32>) #1

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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, !10, i64 8}
!6 = !{!"REMDTempStr", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"double", !8, i64 0}
!11 = distinct !{!11, !12, !13, !14}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!"llvm.loop.isvectorized", i32 1}
!14 = !{!"llvm.loop.unroll.runtime.disable"}
!15 = distinct !{!15, !12, !14, !13}


; Effective O3 passes: GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass