234658 2021-12-23 23:17:22 -0800 REGRESSION(r287412)[WinCairo] error C2338: You've instantiated std::aligned_storage<Len, Align> with an extended alignment (in other words, Align > alignof(max_align_t)). 2021-12-23 23:48:17 -0800 1 1 1 Unclassified WebKit WebKit2 WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=234571 InRadar P2 Normal --- 1 fujii fujii annulen ews-watchlist gyuyoung.kim kkinnunen ryuan.choi sergio webkit-bug-importer oldest_to_newest 1826691 0 fujii 2021-12-23 23:17:22 -0800 REGRESSION(r287412)[WinCairo] error C2338: You've instantiated std::aligned_storage<Len, Align> with an extended alignment (in other words, Align > alignof(max_align_t)). After r287412, WinCairo Debug can't compile FAILED: Source/WebKit/CMakeFiles/WebKit.dir/__/__/WebKit/DerivedSources/unified-sources/UnifiedSource-88d1702b-21.cpp.obj C:\MSVS\VC\Tools\MSVC\14.28.29910\bin\Hostx64\x64\cl.exe (...) WebKit\DerivedSources\unified-sources\UnifiedSource-88d1702b-21.cpp C:\MSVS\VC\Tools\MSVC\14.28.29910\include\type_traits(1066): error C2338: You've instantiated std::aligned_storage<Len, Align> with an extended alignment (in other words, Align > alignof(max_align_t)). Before VS 2017 15.8, the member "type" would non-conformingly have an alignment of only alignof(max_align_t). VS 2017 15.8 was fixed to handle this correctly, but the fix inherently changes layout and breaks binary compatibility (*only* for uses of aligned_storage with extended alignments). Please define either (1) _ENABLE_EXTENDED_ALIGNED_STORAGE to acknowledge that you understand this message and that you actually want a type with an extended alignment, or (2) _DISABLE_EXTENDED_ALIGNED_STORAGE to silence this message and get the old non-conforming behavior. C:\MSVS\VC\Tools\MSVC\14.28.29910\include\type_traits(1086): note: see reference to class template instantiation 'std::_Aligned<32,16,std::_Aligned<32,16,std::_Aligned<32,16,std::_Aligned<32,16,std::aligned_storage<32,16>::_Next,false>::_Next,false>::_Next,false>::_Next,false>' being compiled C:\MSVS\VC\Tools\MSVC\14.28.29910\include\type_traits(1093): note: see reference to class template instantiation 'std::_Aligned<32,16,std::_Aligned<32,16,std::_Aligned<32,16,std::aligned_storage<32,16>::_Next,false>::_Next,false>::_Next,false>' being compiled C:\MSVS\VC\Tools\MSVC\14.28.29910\include\type_traits(1100): note: see reference to class template instantiation 'std::_Aligned<32,16,std::_Aligned<32,16,std::aligned_storage<32,16>::_Next,false>::_Next,false>' being compiled C:\MSVS\VC\Tools\MSVC\14.28.29910\include\type_traits(1107): note: see reference to class template instantiation 'std::_Aligned<32,16,std::aligned_storage<32,16>::_Next,false>' being compiled https://build.webkit.org/#/builders/38/builds/10271 1826693 1 447930 fujii 2021-12-23 23:45:31 -0800 Created attachment 447930 Patch 1826694 2 fujii 2021-12-23 23:47:31 -0800 Committed r287422 (245557@trunk): <https://commits.webkit.org/245557@trunk> 1826695 3 webkit-bug-importer 2021-12-23 23:48:17 -0800 <rdar://problem/86877506> 447930 2021-12-23 23:45:31 -0800 2021-12-23 23:45:31 -0800 Patch bug-234658-20211224164530.patch text/plain 2182 fujii U3VidmVyc2lvbiBSZXZpc2lvbjogMjg3NDIxCmRpZmYgLS1naXQgYS9Tb3VyY2UvY21ha2UvT3B0 aW9uc01TVkMuY21ha2UgYi9Tb3VyY2UvY21ha2UvT3B0aW9uc01TVkMuY21ha2UKaW5kZXggNWUx ZGYxOTc2Mjk3MjY1MWMxNTgxYTQ3ZDdkMjE2Y2FjNjk4YjU3Yi4uZmJjYjEwMDU2ZDVhMWYzNzc4 MjIxNjg1MzYxODE5Yzk4NTJjYzhhZiAxMDA2NDQKLS0tIGEvU291cmNlL2NtYWtlL09wdGlvbnNN U1ZDLmNtYWtlCisrKyBiL1NvdXJjZS9jbWFrZS9PcHRpb25zTVNWQy5jbWFrZQpAQCAtMTI0LDYg KzEyNCw4IEBAIGlmIChOT1QgQ09NUElMRVJfSVNfQ0xBTkdfQ0wpCiAgICAgYWRkX2RlZmluaXRp b25zKC1EX0NSVF9TRUNVUkVfQ1BQX09WRVJMT0FEX1NUQU5EQVJEX05BTUVTPTEpCiBlbmRpZiAo KQogCithZGRfY29tcGlsZV9vcHRpb25zKC1EX0VOQUJMRV9FWFRFTkRFRF9BTElHTkVEX1NUT1JB R0UpCisKICMgU3BlY2lmeSB0aGUgc291cmNlIGNvZGUgZW5jb2RpbmcKIGFkZF9jb21waWxlX29w dGlvbnMoL3V0Zi04IC92YWxpZGF0ZS1jaGFyc2V0KQogCmRpZmYgLS1naXQgYS9DaGFuZ2VMb2cg Yi9DaGFuZ2VMb2cKaW5kZXggYzhmMWIxMmVhMzk5ZmYwODBlNTUyYWI5MDM1YjY3ZTRlNzc2MzY4 NS4uZTU4YTI0YTk1YzhiNjAxMGRlNzE2YmIxNmE5MzEyMzZiY2NhNjViMSAxMDA2NDQKLS0tIGEv Q2hhbmdlTG9nCisrKyBiL0NoYW5nZUxvZwpAQCAtMSwzICsxLDIyIEBACisyMDIxLTEyLTIzICBG dWppaSBIaXJvbm9yaSAgPEhpcm9ub3JpLkZ1amlpQHNvbnkuY29tPgorCisgICAgICAgIFJFR1JF U1NJT04ocjI4NzQxMilbV2luQ2Fpcm9dIGVycm9yIEMyMzM4OiBZb3UndmUgaW5zdGFudGlhdGVk IHN0ZDo6YWxpZ25lZF9zdG9yYWdlPExlbiwgQWxpZ24+IHdpdGggYW4gZXh0ZW5kZWQgYWxpZ25t ZW50IChpbiBvdGhlciB3b3JkcywgQWxpZ24gPiBhbGlnbm9mKG1heF9hbGlnbl90KSkuCisgICAg ICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMzQ2NTgKKworICAg ICAgICBVbnJldmlld2VkIGJ1aWxkIGZpeC4KKworICAgICAgICBBZnRlciByMjg3NDEyLCBXaW5D YWlybyBEZWJ1ZyBjYW4ndCBjb21waWxlIGR1ZSB0byB0aGUgZm9sbG93aW5nIGVycm9yLgorCisg ICAgICAgID4gQzpcTVNWU1xWQ1xUb29sc1xNU1ZDXDE0LjI4LjI5OTEwXGluY2x1ZGVcdHlwZV90 cmFpdHMoMTA2Nik6CisgICAgICAgID4gICBlcnJvciBDMjMzODogWW91J3ZlIGluc3RhbnRpYXRl ZCBzdGQ6OmFsaWduZWRfc3RvcmFnZTxMZW4sIEFsaWduPiB3aXRoIGFuIGV4dGVuZGVkIGFsaWdu bWVudCAoaW4gb3RoZXIgd29yZHMsIEFsaWduID4gYWxpZ25vZihtYXhfYWxpZ25fdCkpLgorICAg ICAgICA+ICAgQmVmb3JlIFZTIDIwMTcgMTUuOCwgdGhlIG1lbWJlciAidHlwZSIgd291bGQgbm9u LWNvbmZvcm1pbmdseSBoYXZlIGFuIGFsaWdubWVudCBvZiBvbmx5IGFsaWdub2YobWF4X2FsaWdu X3QpLgorICAgICAgICA+ICAgVlMgMjAxNyAxNS44IHdhcyBmaXhlZCB0byBoYW5kbGUgdGhpcyBj b3JyZWN0bHksIGJ1dCB0aGUgZml4IGluaGVyZW50bHkgY2hhbmdlcyBsYXlvdXQgYW5kIGJyZWFr cyBiaW5hcnkgY29tcGF0aWJpbGl0eQorICAgICAgICA+ICAgKCpvbmx5KiBmb3IgdXNlcyBvZiBh bGlnbmVkX3N0b3JhZ2Ugd2l0aCBleHRlbmRlZCBhbGlnbm1lbnRzKS4KKyAgICAgICAgPiAgIFBs ZWFzZSBkZWZpbmUgZWl0aGVyICgxKSBfRU5BQkxFX0VYVEVOREVEX0FMSUdORURfU1RPUkFHRSB0 byBhY2tub3dsZWRnZSB0aGF0IHlvdSB1bmRlcnN0YW5kIHRoaXMgbWVzc2FnZSBhbmQgdGhhdCB5 b3UgYWN0dWFsbHkgd2FudCBhIHR5cGUgd2l0aCBhbiBleHRlbmRlZCBhbGlnbm1lbnQsCisgICAg ICAgID4gICBvciAoMikgX0RJU0FCTEVfRVhURU5ERURfQUxJR05FRF9TVE9SQUdFIHRvIHNpbGVu Y2UgdGhpcyBtZXNzYWdlIGFuZCBnZXQgdGhlIG9sZCBub24tY29uZm9ybWluZyBiZWhhdmlvci4K KworICAgICAgICAqIFNvdXJjZS9jbWFrZS9PcHRpb25zTVNWQy5jbWFrZTogQWRkZWQgX0VOQUJM RV9FWFRFTkRFRF9BTElHTkVEX1NUT1JBR0UgbWFjcm8uCisKIDIwMjEtMTItMjMgIENoYW5nU2Vv ayBPaCAgPGNoYW5nc2Vva0B3ZWJraXQub3JnPgogCiAgICAgICAgIEFkZCBjaGFuZ3Nlb2sncyBn aXRodWIgdXNlcm5hbWUuCg==