; LLVM IR from sscollis/lns3d :: src (getver)

; 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.4 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: nounwind
declare i32 @sprintf(ptr noundef, ptr noundef, ...) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @igetver_(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca [256 x i8], align 16
  %7 = alloca [256 x i8], align 16
  %8 = alloca ptr, align 8
  %9 = 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 8, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 256, ptr %6) #5
  call void @llvm.lifetime.start.p0(i64 256, ptr %7) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  store i32 0, ptr %9, align 4, !tbaa !9
  %10 = getelementptr inbounds [256 x i8], ptr %6, i64 0, i64 0
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = call i32 (ptr, ptr, ...) @sprintf(ptr noundef %10, ptr noundef @.str.4, ptr noundef %11, ptr noundef %12) #5
  %14 = getelementptr inbounds [256 x i8], ptr %6, i64 0, i64 0
  %15 = call noalias ptr @popen(ptr noundef %14, ptr noundef @.str.5)
  store ptr %15, ptr %5, align 8, !tbaa !5
  %16 = getelementptr inbounds [256 x i8], ptr %7, i64 0, i64 0
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = call ptr @fgets(ptr noundef %16, i32 noundef 256, ptr noundef %17)
  store ptr %18, ptr %8, align 8, !tbaa !5
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = call i32 @pclose(ptr noundef %19)
  %21 = getelementptr inbounds [256 x i8], ptr %7, i64 0, i64 0
  %22 = call i32 (ptr, ptr, ...) @__isoc99_sscanf(ptr noundef %21, ptr noundef @.str.6, ptr noundef %9) #5
  %23 = getelementptr inbounds [256 x i8], ptr %7, i64 0, i64 0
  %24 = call i64 @strlen(ptr noundef %23) #6
  %25 = icmp ult i64 %24, 1
  br i1 %25, label %26, label %27

26:                                               ; preds = %2
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %27

27:                                               ; preds = %26, %2
  %28 = load i32, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 256, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 256, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret i32 %28
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

declare noalias ptr @popen(ptr noundef, ptr noundef) #3

declare ptr @fgets(ptr noundef, i32 noundef, ptr noundef) #3

declare i32 @pclose(ptr noundef) #3

; Function Attrs: nounwind
declare i32 @__isoc99_sscanf(ptr noundef, ptr noundef, ...) #0

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { 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 #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 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 #5 = { nounwind }
attributes #6 = { 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}


; 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.4 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @sprintf(ptr noalias nocapture noundef writeonly, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nofree nounwind uwtable
define dso_local i32 @igetver_(ptr noundef %0, ptr noundef %1) local_unnamed_addr #1 {
  %3 = alloca [256 x i8], align 16
  %4 = alloca [256 x i8], align 16
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 256, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 256, ptr nonnull %4) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #3
  store i32 0, ptr %5, align 4, !tbaa !5
  %6 = call i32 (ptr, ptr, ...) @sprintf(ptr noundef nonnull dereferenceable(1) %3, ptr noundef nonnull dereferenceable(1) @.str.4, ptr noundef %0, ptr noundef %1) #3
  %7 = call noalias ptr @popen(ptr noundef nonnull %3, ptr noundef nonnull @.str.5)
  %8 = call ptr @fgets(ptr noundef nonnull %4, i32 noundef 256, ptr noundef %7)
  %9 = call i32 @pclose(ptr noundef %7)
  %10 = call i32 (ptr, ptr, ...) @__isoc99_sscanf(ptr noundef nonnull %4, ptr noundef nonnull @.str.6, ptr noundef nonnull %5) #3
  %char0 = load i8, ptr %4, align 16
  %11 = icmp eq i8 %char0, 0
  %.pre = load i32, ptr %5, align 4
  %12 = select i1 %11, i32 0, i32 %.pre
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 256, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 256, ptr nonnull %3) #3
  ret i32 %12
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nofree nounwind
declare noalias noundef ptr @popen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef ptr @fgets(ptr noundef, i32 noundef, ptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @pclose(ptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_sscanf(ptr nocapture noundef readonly, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { 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 #1 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass