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Change callvirt into calli for virtual delegates #83461

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merged 27 commits into from
Apr 26, 2023

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LeVladIonescu
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@LeVladIonescu LeVladIonescu commented Mar 15, 2023

Related to #83329.

@LeVladIonescu LeVladIonescu marked this pull request as ready for review March 16, 2023 13:21
@SamMonoRT SamMonoRT requested a review from trylek March 16, 2023 19:14
@@ -6287,7 +6283,7 @@ mono_marshal_free_dynamic_wrappers (MonoMethod *method)
if (image->wrapper_caches.runtime_invoke_method_cache)
clear_runtime_invoke_method_cache (image->wrapper_caches.runtime_invoke_method_cache, method);
if (image->wrapper_caches.delegate_abstract_invoke_cache)
g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
g_hash_table_remove (image->wrapper_caches.delegate_abstract_invoke_cache, mono_method_signature_internal (method));
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This is not be needed anymore since the wrappers are no longer associated with the method.

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And how is that cache going to be freed if we remove it from here?

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Its freed already in marshal.c, we just don't need to handle it here, since these wrappers will no longer depend on dynamic methods.

Vlad - Alexandru Ionescu and others added 2 commits April 3, 2023 19:56
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/azp run runtime-extra-platforms

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Vlad - Alexandru Ionescu added 2 commits April 13, 2023 02:43
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kg commented Apr 13, 2023

I can reproduce the browser System.Runtime.Tests failure in console with XUNIT_RANDOM_ORDER_SEED=875207244. It occurs in AOT but not in interp mode, and occurs even if jiterpreter is disabled. It seems to be some sort of problem with the AOT<->interp transitions that are happening when most of the test suite is AOT'd.

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kg commented Apr 13, 2023

Error info from a modified debug build:

* Assertion at /home/kate/Projects/dotnet-runtime-wasm/src/mono/mono/mini/interp/interp.c:1874, condition `ftndesc->method' not met
at mono_wasm_stringify_as_error_with_stack (/home/kate/Projects/dotnet-runtime-wasm/artifacts/bin/System.Runtime.Tests/Debug/net8.0-browser/browser-wasm/AppBundle/dotnet.js:810:22)
at mono_wasm_trace_logger (/home/kate/Projects/dotnet-runtime-wasm/artifacts/bin/System.Runtime.Tests/Debug/net8.0-browser/browser-wasm/AppBundle/dotnet.js:829:31)
at wasm_trace_logger (wasm_trace_logger (wasm://wasm/1fdbaf7e:wasm-function[109418]:0x672e272))
at eglib_log_adapter (eglib_log_adapter (wasm://wasm/1fdbaf7e:wasm-function[93132]:0x61719b4))
at monoeg_g_logstr (monoeg_g_logstr (wasm://wasm/1fdbaf7e:wasm-function[92989]:0x616175b))
at monoeg_g_logv_nofree (monoeg_g_logv_nofree (wasm://wasm/1fdbaf7e:wasm-function[92987]:0x61615c4))
at monoeg_assertion_message (monoeg_assertion_message (wasm://wasm/1fdbaf7e:wasm-function[92991]:0x616183c))
at mono_assertion_message (mono_assertion_message (wasm://wasm/1fdbaf7e:wasm-function[92992]:0x61618ea))
at mono_interp_exec_method (mono_interp_exec_method (wasm://wasm/1fdbaf7e:wasm-function[92646]:0x612c6a5))
at interp_entry (interp_entry (wasm://wasm/1fdbaf7e:wasm-function[92719]:0x6131807))
at interp_entry_instance_ret_1 (interp_entry_instance_ret_1 (wasm://wasm/1fdbaf7e:wasm-function[92733]:0x6131eb5))
at aot_instances_aot_wrapper_gsharedvt_in_sig_obj_this_bii (aot_instances_aot_wrapper_gsharedvt_in_sig_obj_this_bii (wasm://wasm/1fdbaf7e:wasm-function[68462]:0x45f40a3))
at System_Runtime_Tests_System_Tests_CreateDelegateTests_CreateDelegate10_Nullable_Method (System_Runtime_Tests_System_Tests_CreateDelegateTests_CreateDelegate10_Nullable_Method (wasm://wasm/1fdbaf7e:wasm-function[40702]:0x2094aad))

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kg commented Apr 13, 2023

That assertion is in ftnptr_to_imethod, which means it's either in the implementation of CALLI or interp_delegate_ctor.

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This version is ready to be merged
cc @vargaz @lambdageek @SamMonoRT

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Let's merge this after Preview4 snap.

@LeVladIonescu LeVladIonescu merged commit 2677eb2 into dotnet:main Apr 26, 2023
@LeVladIonescu LeVladIonescu deleted the delegates_issue branch April 26, 2023 06:27
@ghost ghost locked as resolved and limited conversation to collaborators May 26, 2023
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6 participants