; LLVM IR from guanzhi/GmSSL :: src (tls)

; 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"

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [57 x i8], align 1
@__FUNCTION__.tls_compression_methods_has_null_compression = external hidden unnamed_addr constant [45 x i8], align 1

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

; Function Attrs: nounwind uwtable
define dso_local i32 @tls_compression_methods_has_null_compression(ptr noundef %0, i64 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %8, label %11

8:                                                ; preds = %2
  %9 = load i64, ptr %5, align 8, !tbaa !9
  %10 = icmp ne i64 %9, 0
  br i1 %10, label %16, label %11

11:                                               ; preds = %8, %2
  br label %12

12:                                               ; preds = %11
  %13 = load ptr, ptr @stderr, align 8, !tbaa !5
  %14 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %13, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1578, ptr noundef @__FUNCTION__.tls_compression_methods_has_null_compression) #2
  br label %15

15:                                               ; preds = %12
  store i32 -1, ptr %3, align 4
  br label %34

16:                                               ; preds = %8
  br label %17

17:                                               ; preds = %28, %16
  %18 = load i64, ptr %5, align 8, !tbaa !9
  %19 = add i64 %18, -1
  store i64 %19, ptr %5, align 8, !tbaa !9
  %20 = icmp ne i64 %18, 0
  br i1 %20, label %21, label %29

21:                                               ; preds = %17
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %22, i32 1
  store ptr %23, ptr %4, align 8, !tbaa !5
  %24 = load i8, ptr %22, align 1, !tbaa !11
  %25 = zext i8 %24 to i32
  %26 = icmp eq i32 %25, 0
  br i1 %26, label %27, label %28

27:                                               ; preds = %21
  store i32 1, ptr %3, align 4
  br label %34

28:                                               ; preds = %21
  br label %17, !llvm.loop !12

29:                                               ; preds = %17
  br label %30

30:                                               ; preds = %29
  %31 = load ptr, ptr @stderr, align 8, !tbaa !5
  %32 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %31, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1586, ptr noundef @__FUNCTION__.tls_compression_methods_has_null_compression) #2
  br label %33

33:                                               ; preds = %30
  store i32 -1, ptr %3, align 4
  br label %34

34:                                               ; preds = %33, %27, %15
  %35 = load i32, ptr %3, align 4
  ret i32 %35
}

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 = { 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}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [57 x i8], align 1
@__FUNCTION__.tls_compression_methods_has_null_compression = external hidden unnamed_addr constant [45 x i8], align 1

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

; Function Attrs: nofree nounwind uwtable
define dso_local range(i32 -1, 2) i32 @tls_compression_methods_has_null_compression(ptr noundef readonly %0, i64 noundef %1) local_unnamed_addr #1 {
  %3 = icmp ne ptr %0, null
  %4 = icmp ne i64 %1, 0
  %or.cond = and i1 %3, %4
  br i1 %or.cond, label %.preheader, label %.loopexit.sink.split

.preheader:                                       ; preds = %2, %5
  %.05 = phi ptr [ %7, %5 ], [ %0, %2 ]
  %.0 = phi i64 [ %6, %5 ], [ %1, %2 ]
  %.not = icmp eq i64 %.0, 0
  br i1 %.not, label %.loopexit.sink.split, label %5

5:                                                ; preds = %.preheader
  %6 = add i64 %.0, -1
  %7 = getelementptr inbounds i8, ptr %.05, i64 1
  %8 = load i8, ptr %.05, align 1, !tbaa !5
  %9 = icmp eq i8 %8, 0
  br i1 %9, label %.loopexit, label %.preheader, !llvm.loop !8

.loopexit.sink.split:                             ; preds = %.preheader, %2
  %.sink9 = phi i32 [ 1578, %2 ], [ 1586, %.preheader ]
  %10 = load ptr, ptr @stderr, align 8, !tbaa !10
  %11 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %10, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink9, ptr noundef nonnull @__FUNCTION__.tls_compression_methods_has_null_compression) #2
  br label %.loopexit

.loopexit:                                        ; preds = %5, %.loopexit.sink.split
  %.06 = phi i32 [ -1, %.loopexit.sink.split ], [ 1, %5 ]
  ret i32 %.06
}

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 = { cold 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!11, !11, i64 0}
!11 = !{!"any pointer", !6, i64 0}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass