; LLVM IR from stan-dev/math :: lib/tbb_2020.3/src/test/test_mutex_native_threads.ll (Z8TestMainv)

; 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"

%"class.Harness::internal::Tracer" = type <{ i32, [4 x i8], ptr, ptr, i64, [8 x i8] }>

@_ZN7Harness8internalL6tracerE = external hidden global %"class.Harness::internal::Tracer", align 8
@_ZL9MinThread = external hidden global i32, align 4
@_ZL9MaxThread = external hidden global i32, align 4
@_ZL7Verbose = external hidden global i8, align 1
@.str.17 = external hidden unnamed_addr constant [101 x i8], align 1
@__FUNCTION__._Z8TestMainv = external hidden unnamed_addr constant [9 x i8], align 1
@.str.18 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.19 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.20 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.21 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.22 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.23 = external hidden unnamed_addr constant [6 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: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN7Harness8internal6Tracer14set_trace_infoEiPKcmS3_(ptr noundef nonnull align 8 dereferenceable(33), i32 noundef, ptr noundef, i64 noundef, ptr noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7Harness8internal6Tracer5traceEPKcz(ptr noundef nonnull align 8 dereferenceable(33), ptr noundef, ...) #2 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z8TestMainv() #2 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  %2 = load i32, ptr @_ZL9MinThread, align 4, !tbaa !5
  store i32 %2, ptr %1, align 4, !tbaa !5
  br label %3

3:                                                ; preds = %23, %0
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = load i32, ptr @_ZL9MaxThread, align 4, !tbaa !5
  %6 = icmp sle i32 %4, %5
  br i1 %6, label %8, label %7

7:                                                ; preds = %3
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  br label %26

8:                                                ; preds = %3
  %9 = load i8, ptr @_ZL7Verbose, align 1, !tbaa !9, !range !11, !noundef !12
  %10 = trunc i8 %9 to i1
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  br label %15

12:                                               ; preds = %8
  %13 = call noundef ptr @_ZN7Harness8internal6Tracer14set_trace_infoEiPKcmS3_(ptr noundef nonnull align 8 dereferenceable(33) @_ZN7Harness8internalL6tracerE, i32 noundef 0, ptr noundef @.str.17, i64 noundef 207, ptr noundef @__FUNCTION__._Z8TestMainv)
  %14 = load i32, ptr %1, align 4, !tbaa !5
  call void (ptr, ptr, ...) @_ZN7Harness8internal6Tracer5traceEPKcz(ptr noundef nonnull align 8 dereferenceable(33) %13, ptr noundef @.str.18, i32 noundef %14)
  br label %15

15:                                               ; preds = %12, %11
  %16 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z4TestIN3tbb10spin_mutexEEvPKci(ptr noundef @.str.19, i32 noundef %16)
  %17 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z4TestIN3tbb13queuing_mutexEEvPKci(ptr noundef @.str.20, i32 noundef %17)
  %18 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z4TestIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef @.str.21, i32 noundef %18)
  %19 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z4TestIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef @.str.22, i32 noundef %19)
  %20 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z4TestIN3tbb5mutexEEvPKci(ptr noundef @.str.23, i32 noundef %20)
  %21 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z16TestReaderWriterIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef @.str.21, i32 noundef %21)
  %22 = load i32, ptr %1, align 4, !tbaa !5
  call void @_Z16TestReaderWriterIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef @.str.22, i32 noundef %22)
  br label %23

23:                                               ; preds = %15
  %24 = load i32, ptr %1, align 4, !tbaa !5
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %1, align 4, !tbaa !5
  br label %3, !llvm.loop !13

26:                                               ; preds = %7
  ret i32 0
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb10spin_mutexEEvPKci(ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb13queuing_mutexEEvPKci(ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb5mutexEEvPKci(ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z16TestReaderWriterIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z16TestReaderWriterIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef, i32 noundef) #2

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

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}
!13 = distinct !{!13, !14}
!14 = !{!"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"

%"class.Harness::internal::Tracer" = type <{ i32, [4 x i8], ptr, ptr, i64, [8 x i8] }>

@_ZN7Harness8internalL6tracerE = external hidden global %"class.Harness::internal::Tracer", align 8
@_ZL9MinThread = external hidden local_unnamed_addr global i32, align 4
@_ZL9MaxThread = external hidden local_unnamed_addr global i32, align 4
@_ZL7Verbose = external hidden local_unnamed_addr global i8, align 1
@.str.17 = external hidden unnamed_addr constant [101 x i8], align 1
@__FUNCTION__._Z8TestMainv = external hidden unnamed_addr constant [9 x i8], align 1
@.str.18 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.19 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.20 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.21 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.22 = external hidden unnamed_addr constant [14 x i8], align 1
@.str.23 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN7Harness8internal6Tracer14set_trace_infoEiPKcmS3_(ptr noundef nonnull align 8 dereferenceable(33), i32 noundef, ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7Harness8internal6Tracer5traceEPKcz(ptr noundef nonnull align 8 dereferenceable(33), ptr noundef, ...) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z8TestMainv() local_unnamed_addr #1 {
  %1 = load i32, ptr @_ZL9MinThread, align 4, !tbaa !5
  %2 = load i32, ptr @_ZL9MaxThread, align 4, !tbaa !5
  %.not10 = icmp sgt i32 %1, %2
  br i1 %.not10, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %7, %0
  ret i32 0

.lr.ph:                                           ; preds = %0, %7
  %.011 = phi i32 [ %8, %7 ], [ %1, %0 ]
  %3 = load i8, ptr @_ZL7Verbose, align 1, !tbaa !9, !range !11, !noundef !12
  %4 = trunc nuw i8 %3 to i1
  br i1 %4, label %5, label %7

5:                                                ; preds = %.lr.ph
  %6 = tail call noundef ptr @_ZN7Harness8internal6Tracer14set_trace_infoEiPKcmS3_(ptr noundef nonnull align 8 dereferenceable(33) @_ZN7Harness8internalL6tracerE, i32 noundef 0, ptr noundef nonnull @.str.17, i64 noundef 207, ptr noundef nonnull @__FUNCTION__._Z8TestMainv)
  tail call void (ptr, ptr, ...) @_ZN7Harness8internal6Tracer5traceEPKcz(ptr noundef nonnull align 8 dereferenceable(33) %6, ptr noundef nonnull @.str.18, i32 noundef %.011)
  br label %7

7:                                                ; preds = %.lr.ph, %5
  tail call void @_Z4TestIN3tbb10spin_mutexEEvPKci(ptr noundef nonnull @.str.19, i32 noundef %.011)
  tail call void @_Z4TestIN3tbb13queuing_mutexEEvPKci(ptr noundef nonnull @.str.20, i32 noundef %.011)
  tail call void @_Z4TestIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef nonnull @.str.21, i32 noundef %.011)
  tail call void @_Z4TestIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef nonnull @.str.22, i32 noundef %.011)
  tail call void @_Z4TestIN3tbb5mutexEEvPKci(ptr noundef nonnull @.str.23, i32 noundef %.011)
  tail call void @_Z16TestReaderWriterIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef nonnull @.str.21, i32 noundef %.011)
  tail call void @_Z16TestReaderWriterIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef nonnull @.str.22, i32 noundef %.011)
  %8 = add nsw i32 %.011, 1
  %9 = load i32, ptr @_ZL9MaxThread, align 4, !tbaa !5
  %.not.not = icmp slt i32 %.011, %9
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !13
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb10spin_mutexEEvPKci(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb13queuing_mutexEEvPKci(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z4TestIN3tbb5mutexEEvPKci(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z16TestReaderWriterIN3tbb16queuing_rw_mutexEEvPKci(ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z16TestReaderWriterIN3tbb16spin_rw_mutex_v3EEvPKci(ptr noundef, i32 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress 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 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" }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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