; LLVM IR from erwincoumans/tiny-differentiable-simulator :: third_party/zeromq/src/raw_decoder.ll (ZN3zmq13raw_decoder_tD2Ev)

; 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.zmq::raw_decoder_t" = type { %"class.zmq::i_decoder", %"class.zmq::msg_t", %"class.zmq::shared_message_memory_allocator" }
%"class.zmq::i_decoder" = type { ptr }
%"class.zmq::msg_t" = type { %union.anon }
%union.anon = type { %struct.anon }
%struct.anon = type { ptr, [34 x i8], i8, i8, [16 x i8], i32 }
%"class.zmq::shared_message_memory_allocator" = type { ptr, i64, i64, ptr, i64 }

@_ZTVN3zmq13raw_decoder_tE = external dso_local unnamed_addr constant { [8 x ptr] }, align 8
@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [115 x i8], align 1

declare i32 @__gxx_personality_v0(...)

; 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(none)
declare i64 @llvm.expect.i64(i64, i64) #1

; Function Attrs: nounwind
declare ptr @strerror(i32 noundef) #2

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #3

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

declare i32 @fflush(ptr noundef) #4

declare void @_ZN3zmq9zmq_abortEPKc(ptr noundef) #4

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

; Function Attrs: nounwind
declare void @_ZN3zmq31shared_message_memory_allocatorD1Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3zmq13raw_decoder_tD2Ev(ptr noundef nonnull align 8 dereferenceable(112) %0) unnamed_addr #5 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  store ptr getelementptr inbounds inrange(-16, 48) ({ [8 x ptr] }, ptr @_ZTVN3zmq13raw_decoder_tE, i32 0, i32 0, i32 2), ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  %6 = getelementptr inbounds %"class.zmq::raw_decoder_t", ptr %5, i32 0, i32 1
  %7 = invoke noundef i32 @_ZN3zmq5msg_t5closeEv(ptr noundef nonnull align 8 dereferenceable(64) %6)
          to label %8 unwind label %32

8:                                                ; preds = %1
  store i32 %7, ptr %3, align 4, !tbaa !11
  br label %9

9:                                                ; preds = %8
  %10 = load i32, ptr %3, align 4, !tbaa !11
  %11 = icmp eq i32 %10, 0
  %12 = xor i1 %11, true
  %13 = zext i1 %12 to i64
  %14 = call i64 @llvm.expect.i64(i64 %13, i64 0)
  %15 = icmp ne i64 %14, 0
  br i1 %15, label %16, label %28

16:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #7
  %17 = call ptr @__errno_location() #8
  %18 = load i32, ptr %17, align 4, !tbaa !11
  %19 = call ptr @strerror(i32 noundef %18) #7
  store ptr %19, ptr %4, align 8, !tbaa !5
  %20 = load ptr, ptr @stderr, align 8, !tbaa !5
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef @.str, ptr noundef %21, ptr noundef @.str.1, i32 noundef 46) #7
  %23 = load ptr, ptr @stderr, align 8, !tbaa !5
  %24 = invoke i32 @fflush(ptr noundef %23)
          to label %25 unwind label %32

25:                                               ; preds = %16
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  invoke void @_ZN3zmq9zmq_abortEPKc(ptr noundef %26)
          to label %27 unwind label %32

27:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #7
  br label %28

28:                                               ; preds = %27, %9
  br label %29

29:                                               ; preds = %28
  br label %30

30:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  %31 = getelementptr inbounds %"class.zmq::raw_decoder_t", ptr %5, i32 0, i32 2
  call void @_ZN3zmq31shared_message_memory_allocatorD1Ev(ptr noundef nonnull align 8 dereferenceable(40) %31) #7
  call void @_ZN3zmq9i_decoderD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %5) #7
  ret void

32:                                               ; preds = %25, %16, %1
  %33 = landingpad { ptr, i32 }
          catch ptr null
  %34 = extractvalue { ptr, i32 } %33, 0
  call void @__clang_call_terminate(ptr %34) #9
  unreachable
}

declare noundef i32 @_ZN3zmq5msg_t5closeEv(ptr noundef nonnull align 8 dereferenceable(64)) #4

; Function Attrs: noinline noreturn nounwind uwtable
declare hidden void @__clang_call_terminate(ptr noundef) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3zmq9i_decoderD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #5 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(none) }
attributes #2 = { 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 #3 = { nounwind willreturn memory(none) "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 = { "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 = { 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 #6 = { noinline noreturn nounwind uwtable "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 #7 = { nounwind }
attributes #8 = { nounwind willreturn memory(none) }
attributes #9 = { noreturn 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

@_ZTVN3zmq13raw_decoder_tE = external dso_local unnamed_addr constant { [8 x ptr] }, align 8
@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [115 x i8], align 1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nounwind
declare ptr @strerror(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @fflush(ptr nocapture noundef) local_unnamed_addr #2

declare void @_ZN3zmq9zmq_abortEPKc(ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind
declare void @_ZN3zmq31shared_message_memory_allocatorD1Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3zmq13raw_decoder_tD2Ev(ptr noundef nonnull align 8 dereferenceable(112) %0) unnamed_addr #4 align 2 personality ptr @__gxx_personality_v0 {
  store ptr getelementptr inbounds inrange(-16, 48) (i8, ptr @_ZTVN3zmq13raw_decoder_tE, i64 16), ptr %0, align 8, !tbaa !5
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = invoke noundef i32 @_ZN3zmq5msg_t5closeEv(ptr noundef nonnull align 8 dereferenceable(64) %2)
          to label %4 unwind label %15

4:                                                ; preds = %1
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %13, label %5, !prof !8

5:                                                ; preds = %4
  %6 = tail call ptr @__errno_location() #6
  %7 = load i32, ptr %6, align 4, !tbaa !9
  %8 = tail call ptr @strerror(i32 noundef %7) #7
  %9 = load ptr, ptr @stderr, align 8, !tbaa !12
  %10 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %9, ptr noundef nonnull @.str, ptr noundef %8, ptr noundef nonnull @.str.1, i32 noundef 46) #8
  %11 = load ptr, ptr @stderr, align 8, !tbaa !12
  %12 = tail call i32 @fflush(ptr noundef %11)
  invoke void @_ZN3zmq9zmq_abortEPKc(ptr noundef %8)
          to label %13 unwind label %15

13:                                               ; preds = %5, %4
  %14 = getelementptr inbounds i8, ptr %0, i64 72
  tail call void @_ZN3zmq31shared_message_memory_allocatorD1Ev(ptr noundef nonnull align 8 dereferenceable(40) %14) #7
  tail call void @_ZN3zmq9i_decoderD2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #7
  ret void

15:                                               ; preds = %5, %1
  %16 = landingpad { ptr, i32 }
          catch ptr null
  %17 = extractvalue { ptr, i32 } %16, 0
  tail call void @__clang_call_terminate(ptr %17) #9
  unreachable
}

declare noundef i32 @_ZN3zmq5msg_t5closeEv(ptr noundef nonnull align 8 dereferenceable(64)) local_unnamed_addr #3

; Function Attrs: noinline noreturn nounwind uwtable
declare hidden void @__clang_call_terminate(ptr noundef) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3zmq9i_decoderD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #4 align 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 = { mustprogress nofree nosync nounwind willreturn memory(none) "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 = { 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 #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 = { 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 #5 = { noinline noreturn nounwind uwtable "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 #6 = { nounwind willreturn memory(none) }
attributes #7 = { nounwind }
attributes #8 = { cold nounwind }
attributes #9 = { noreturn 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!"branch_weights", !"expected", i32 2000, i32 1}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !11, i64 0}
!11 = !{!"omnipotent char", !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"any pointer", !11, i64 0}


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