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

; 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"

@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.175 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.176 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.177 = external hidden unnamed_addr constant [2 x i8], align 1

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

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind
declare i32 @sprintf(ptr noundef, ptr noundef, ...) #2

; 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 @CheckValidAtom(ptr noundef %0, ptr noundef %1, i32 noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  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
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %45, %3
  %11 = load i32, ptr %8, align 4, !tbaa !9
  %12 = load i32, ptr %7, align 4, !tbaa !9
  %13 = icmp slt i32 %11, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %10
  store i32 2, ptr %9, align 4
  br label %48

15:                                               ; preds = %10
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = load i32, ptr %8, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [8 x i8], ptr %17, i64 %19
  %21 = getelementptr inbounds [8 x i8], ptr %20, i64 0, i64 0
  %22 = call i32 @strcmp(ptr noundef %16, ptr noundef %21) #5
  %23 = icmp eq i32 %22, 0
  br i1 %23, label %24, label %31

24:                                               ; preds = %15
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [8 x i8], ptr %25, i64 %27
  %29 = getelementptr inbounds [8 x i8], ptr %28, i64 0, i64 0
  %30 = call i32 (ptr, ptr, ...) @sprintf(ptr noundef %29, ptr noundef @.str.3, ptr noundef @.str.175) #4
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %48

31:                                               ; preds = %15
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = call i32 @strcmp(ptr noundef %32, ptr noundef @.str.176) #5
  %34 = icmp eq i32 %33, 0
  br i1 %34, label %35, label %44

35:                                               ; preds = %31
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = load i32, ptr %8, align 4, !tbaa !9
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [8 x i8], ptr %36, i64 %38
  %40 = getelementptr inbounds [8 x i8], ptr %39, i64 0, i64 0
  %41 = call i32 (ptr, ptr, ...) @sprintf(ptr noundef %40, ptr noundef @.str.3, ptr noundef @.str.175) #4
  %42 = load ptr, ptr %5, align 8, !tbaa !5
  %43 = call i32 (ptr, ptr, ...) @sprintf(ptr noundef %42, ptr noundef @.str.177) #4
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %48

44:                                               ; preds = %31
  br label %45

45:                                               ; preds = %44
  %46 = load i32, ptr %8, align 4, !tbaa !9
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %8, align 4, !tbaa !9
  br label %10, !llvm.loop !11

48:                                               ; preds = %35, %24, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  %49 = load i32, ptr %9, align 4
  switch i32 %49, label %53 [
    i32 2, label %50
    i32 1, label %51
  ]

50:                                               ; preds = %48
  store i32 0, ptr %4, align 4
  br label %51

51:                                               ; preds = %50, %48
  %52 = load i32, ptr %4, align 4
  ret i32 %52

53:                                               ; preds = %48
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind willreturn memory(read) "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 "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 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 #4 = { nounwind }
attributes #5 = { nounwind willreturn memory(read) }

!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 = distinct !{!11, !12}
!12 = !{!"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"

@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.175 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.176 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.177 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @sprintf(ptr noalias nocapture noundef writeonly, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nofree nounwind uwtable
define dso_local range(i32 0, 2) i32 @CheckValidAtom(ptr nocapture noundef %0, ptr nocapture noundef %1, i32 noundef %2) local_unnamed_addr #2 {
  %.not19 = icmp sgt i32 %2, 0
  br i1 %.not19, label %.lr.ph.preheader, label %.loopexit

.lr.ph.preheader:                                 ; preds = %3
  %4 = zext nneg i32 %2 to i64
  %wide.trip.count = zext nneg i32 %2 to i64
  br label %.lr.ph

5:                                                ; preds = %11
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %.not = icmp ult i64 %indvars.iv.next, %4
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %.lr.ph.preheader, %5
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %5 ]
  %.not21 = phi i1 [ true, %.lr.ph.preheader ], [ %.not, %5 ]
  %6 = getelementptr inbounds [8 x i8], ptr %1, i64 %indvars.iv
  %7 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) %6) #3
  %8 = icmp eq i32 %7, 0
  br i1 %8, label %9, label %11

9:                                                ; preds = %.lr.ph
  %10 = tail call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) %6, ptr noundef nonnull dereferenceable(1) @.str.3, ptr noundef nonnull @.str.175) #4
  br label %.loopexit

11:                                               ; preds = %.lr.ph
  %12 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) @.str.176) #3
  %13 = icmp eq i32 %12, 0
  br i1 %13, label %14, label %5

14:                                               ; preds = %11
  %15 = tail call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) %6, ptr noundef nonnull dereferenceable(1) @.str.3, ptr noundef nonnull @.str.175) #4
  %16 = tail call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) @.str.177) #4
  br label %.loopexit

.loopexit:                                        ; preds = %5, %3, %14, %9
  %.not17 = phi i1 [ %.not21, %14 ], [ %.not21, %9 ], [ false, %3 ], [ %.not, %5 ]
  %spec.select = zext i1 %.not17 to i32
  ret i32 %spec.select
}

attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 = { nofree nounwind "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 = { nofree 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 #3 = { nounwind willreturn memory(read) }
attributes #4 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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