; LLVM IR from humz2k/sugaryc :: ext/bdwgc/extra (gc)

; 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.GC_prof_stats_s = type { i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64 }

; 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: nocallback nofree nosync nounwind willreturn memory(none)
declare i64 @llvm.expect.i64(i64, i64) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

; Function Attrs: nounwind uwtable
define dso_local i64 @GC_get_prof_stats(ptr noundef %0, i64 noundef %1) #4 {
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca %struct.GC_prof_stats_s, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 96, ptr %6) #5
  %8 = load i64, ptr %5, align 8, !tbaa !9
  %9 = icmp uge i64 %8, 96
  br i1 %9, label %10, label %12

10:                                               ; preds = %2
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  br label %13

12:                                               ; preds = %2
  br label %13

13:                                               ; preds = %12, %10
  %14 = phi ptr [ %11, %10 ], [ %6, %12 ]
  call void @fill_prof_stats(ptr noundef %14)
  %15 = load i64, ptr %5, align 8, !tbaa !9
  %16 = icmp eq i64 %15, 96
  br i1 %16, label %17, label %18

17:                                               ; preds = %13
  store i64 96, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %38

18:                                               ; preds = %13
  %19 = load i64, ptr %5, align 8, !tbaa !9
  %20 = icmp ugt i64 %19, 96
  br i1 %20, label %21, label %26

21:                                               ; preds = %18
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %22, i64 96
  %24 = load i64, ptr %5, align 8, !tbaa !9
  %25 = sub i64 %24, 96
  call void @llvm.memset.p0.i64(ptr align 1 %23, i8 -1, i64 %25, i1 false)
  store i64 96, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %38

26:                                               ; preds = %18
  %27 = load i64, ptr %5, align 8, !tbaa !9
  %28 = icmp ugt i64 %27, 0
  %29 = zext i1 %28 to i32
  %30 = sext i32 %29 to i64
  %31 = call i64 @llvm.expect.i64(i64 %30, i64 1)
  %32 = icmp ne i64 %31, 0
  br i1 %32, label %33, label %36

33:                                               ; preds = %26
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = load i64, ptr %5, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %34, ptr align 8 %6, i64 %35, i1 false)
  br label %36

36:                                               ; preds = %33, %26
  %37 = load i64, ptr %5, align 8, !tbaa !9
  store i64 %37, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %38

38:                                               ; preds = %36, %21, %17
  call void @llvm.lifetime.end.p0(i64 96, ptr %6) #5
  %39 = load i64, ptr %3, align 8
  ret i64 %39
}

; Function Attrs: nounwind uwtable
declare hidden void @fill_prof_stats(ptr noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(none) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { 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 #5 = { 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 = !{!"long", !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"

%struct.GC_prof_stats_s = type { i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64, i64 }

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

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

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
define dso_local range(i64 0, 97) i64 @GC_get_prof_stats(ptr noundef %0, i64 noundef %1) local_unnamed_addr #3 {
  %3 = alloca %struct.GC_prof_stats_s, align 8
  call void @llvm.lifetime.start.p0(i64 96, ptr nonnull %3) #4
  %4 = icmp ugt i64 %1, 95
  %5 = select i1 %4, ptr %0, ptr %3
  call void @fill_prof_stats(ptr noundef %5)
  %6 = icmp eq i64 %1, 96
  br i1 %6, label %14, label %7

7:                                                ; preds = %2
  %8 = icmp ugt i64 %1, 96
  br i1 %8, label %9, label %12

9:                                                ; preds = %7
  %10 = getelementptr inbounds i8, ptr %0, i64 96
  %11 = add i64 %1, -96
  call void @llvm.memset.p0.i64(ptr nonnull align 1 %10, i8 -1, i64 %11, i1 false)
  br label %14

12:                                               ; preds = %7
  %.not = icmp eq i64 %1, 0
  br i1 %.not, label %14, label %13, !prof !5

13:                                               ; preds = %12
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %0, ptr nonnull align 8 %3, i64 %1, i1 false)
  br label %14

14:                                               ; preds = %12, %13, %2, %9
  %.0 = phi i64 [ 96, %9 ], [ 96, %2 ], [ %1, %13 ], [ 0, %12 ]
  call void @llvm.lifetime.end.p0(i64 96, ptr nonnull %3) #4
  ret i64 %.0
}

; Function Attrs: nounwind uwtable
declare hidden void @fill_prof_stats(ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
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 }

!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 = !{!"branch_weights", !"expected", i32 1, i32 2000}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,LowerExpectIntrinsicPass,SROAPass,SimplifyCFGPass