; LLVM IR from GGiecold-zz/Cluster_Ensembles :: src/Cluster_Ensembles/Hypergraph_Partitioning/metis-5.1.0/GKlib (memory)

; 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"

@gkmcore = external hidden thread_local global ptr, align 8

; Function Attrs: nounwind uwtable
define dso_local i32 @gk_malloc_init() #0 {
  %1 = alloca i32, align 4
  %2 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @gkmcore)
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, null
  br i1 %4, label %5, label %8

5:                                                ; preds = %0
  %6 = call ptr (...) @gk_gkmcoreCreate()
  %7 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @gkmcore)
  store ptr %6, ptr %7, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %5, %0
  %9 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @gkmcore)
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = icmp eq ptr %10, null
  br i1 %11, label %12, label %13

12:                                               ; preds = %8
  store i32 0, ptr %1, align 4
  br label %16

13:                                               ; preds = %8
  %14 = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @gkmcore)
  %15 = load ptr, ptr %14, align 8, !tbaa !5
  call void @gk_gkmcorePush(ptr noundef %15)
  store i32 1, ptr %1, align 4
  br label %16

16:                                               ; preds = %13, %12
  %17 = load i32, ptr %1, align 4
  ret i32 %17
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

declare ptr @gk_gkmcoreCreate(...) #2

declare void @gk_gkmcorePush(ptr noundef) #2

attributes #0 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { "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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; 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"

@gkmcore = external hidden thread_local local_unnamed_addr global ptr, align 8

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @gk_malloc_init() local_unnamed_addr #0 {
  %1 = tail call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @gkmcore)
  %2 = load ptr, ptr %1, align 8, !tbaa !5
  %3 = icmp eq ptr %2, null
  br i1 %3, label %4, label %.thread

4:                                                ; preds = %0
  %5 = tail call ptr (...) @gk_gkmcoreCreate() #3
  store ptr %5, ptr %1, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %.thread

.thread:                                          ; preds = %0, %4
  %7 = phi ptr [ %5, %4 ], [ %2, %0 ]
  tail call void @gk_gkmcorePush(ptr noundef nonnull %7) #3
  br label %8

8:                                                ; preds = %4, %.thread
  %.0 = phi i32 [ 1, %.thread ], [ 0, %4 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #1

declare ptr @gk_gkmcoreCreate(...) local_unnamed_addr #2

declare void @gk_gkmcorePush(ptr noundef) local_unnamed_addr #2

attributes #0 = { 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 nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { "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/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,SimplifyCFGPass,TailCallElimPass