https://build.chromium.org/p/tryserver.chromium.win/builders/win_clang/builds/62339/steps/compile%20%28with%20patch%29/logs/stdio

LINK : warning LNK4075: ignoring '/INCREMENTAL' due to '/OPT:ICF' specification

parser-shell.obj : warning LNK4217: locally defined symbol ?NewFromTwoByte@String@v8@@SA?AV?$MaybeLocal@VString@v8@@@2@PEAVIsolate@2@PEBGW4NewStringType@2@H@Z (public: static class v8::MaybeLocal<class v8::String> __cdecl v8::String::NewFromTwoByte(class v8::Isolate *,unsigned short const *,enum v8::NewStringType,int)) imported in function "struct std::pair<class v8::base::TimeDelta,class v8::base::TimeDelta> __cdecl RunBaselineParser(char const *,enum v8::internal::Encoding,int,class v8::Isolate *,class v8::Local<class v8::Context>)" (?RunBaselineParser@@YA?AU?$pair@VTimeDelta@base@v8@@V123@@std@@PEBDW4Encoding@internal@v8@@HPEAVIsolate@5@V?$Local@VContext@v8@@@5@@Z)

parser-shell.obj : warning LNK4217: locally defined symbol ?ToLocalEmpty@V8@v8@@CAXXZ (private: static void __cdecl v8::V8::ToLocalEmpty(void)) imported in function "struct std::pair<class v8::base::TimeDelta,class v8::base::TimeDelta> __cdecl RunBaselineParser(char const *,enum v8::internal::Encoding,int,class v8::Isolate *,class v8::Local<class v8::Context>)" (?RunBaselineParser@@YA?AU?$pair@VTimeDelta@base@v8@@V123@@std@@PEBDW4Encoding@internal@v8@@HPEAVIsolate@5@V?$Local@VContext@v8@@@5@@Z)

parser-shell.obj : warning LNK4217: locally defined symbol ?NewExternalOneByte@String@v8@@SA?AV?$MaybeLocal@VString@v8@@@2@PEAVIsolate@2@PEAVExternalOneByteStringResource@12@@Z (public: static class v8::MaybeLocal<class v8::String> __cdecl v8::String::NewExternalOneByte(class v8::Isolate *,class v8::String::ExternalOneByteStringResource *)) imported in function "struct std::pair<class v8::base::TimeDelta,class v8::base::TimeDelta> __cdecl RunBaselineParser(char const *,enum v8::internal::Encoding,int,class v8::Isolate *,class v8::Local<class v8::Context>)" (?RunBaselineParser@@YA?AU?$pair@VTimeDelta@base@v8@@V123@@std@@PEBDW4Encoding@internal@v8@@HPEAVIsolate@5@V?$Local@VContext@v8@@@5@@Z)

parser-shell.obj : warning LNK4217: locally defined symbol ?NewFromUtf8@String@v8@@SA?AV?$MaybeLocal@VString@v8@@@2@PEAVIsolate@2@PEBDW4NewStringType@2@H@Z (public: static class v8::MaybeLocal<class v8::String> __cdecl v8::String::NewFromUtf8(class v8::Isolate *,char const *,enum v8::NewStringType,int)) imported in function "struct std::pair<class v8::base::TimeDelta,class v8::base::TimeDelta> __cdecl RunBaselineParser(char const *,enum v8::internal::Encoding,int,class v8::Isolate *,class v8::Local<class v8::Context>)" (?RunBaselineParser@@YA?AU?$pair@VTimeDelta@base@v8@@V123@@std@@PEBDW4Encoding@internal@v8@@HPEAVIsolate@5@V?$Local@VContext@v8@@@5@@Z)

parser-shell.obj : warning LNK4217: locally defined symbol ?SetFlagsFromCommandLine@V8@v8@@SAXPEAHPEAPEAD_N@Z (public: static void __cdecl v8::V8::SetFlagsFromCommandLine(int *,char * *,bool)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?InitializeICUDefaultLocation@V8@v8@@SA_NPEBD0@Z (public: static bool __cdecl v8::V8::InitializeICUDefaultLocation(char const *,char const *)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?InitializePlatform@V8@v8@@SAXPEAVPlatform@2@@Z (public: static void __cdecl v8::V8::InitializePlatform(class v8::Platform *)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?Initialize@V8@v8@@SA_NXZ (public: static bool __cdecl v8::V8::Initialize(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?InitializeExternalStartupData@V8@v8@@SAXPEBD@Z (public: static void __cdecl v8::V8::InitializeExternalStartupData(char const *)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ??0ResourceConstraints@v8@@QEAA@XZ (public: __cdecl v8::ResourceConstraints::ResourceConstraints(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?NewDefaultAllocator@Allocator@ArrayBuffer@v8@@SAPEAV123@XZ (public: static class v8::ArrayBuffer::Allocator * __cdecl v8::ArrayBuffer::Allocator::NewDefaultAllocator(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?New@Isolate@v8@@SAPEAV12@AEBUCreateParams@12@@Z (public: static class v8::Isolate * __cdecl v8::Isolate::New(struct v8::Isolate::CreateParams const &)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?Enter@Isolate@v8@@QEAAXXZ (public: void __cdecl v8::Isolate::Enter(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ??0HandleScope@v8@@QEAA@PEAVIsolate@1@@Z (public: __cdecl v8::HandleScope::HandleScope(class v8::Isolate *)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?New@ObjectTemplate@v8@@SA?AV?$Local@VObjectTemplate@v8@@@2@PEAVIsolate@2@V?$Local@VFunctionTemplate@v8@@@2@@Z (public: static class v8::Local<class v8::ObjectTemplate> __cdecl v8::ObjectTemplate::New(class v8::Isolate *,class v8::Local<class v8::FunctionTemplate>)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?New@Context@v8@@SA?AV?$Local@VContext@v8@@@2@PEAVIsolate@2@PEAVExtensionConfiguration@2@V?$MaybeLocal@VObjectTemplate@v8@@@2@V?$MaybeLocal@VValue@v8@@@2@@Z (public: static class v8::Local<class v8::Context> __cdecl v8::Context::New(class v8::Isolate *,class v8::ExtensionConfiguration *,class v8::MaybeLocal<class v8::ObjectTemplate>,class v8::MaybeLocal<class v8::Value>)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?Enter@Context@v8@@QEAAXXZ (public: void __cdecl v8::Context::Enter(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?Exit@Context@v8@@QEAAXXZ (public: void __cdecl v8::Context::Exit(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ??1HandleScope@v8@@QEAA@XZ (public: __cdecl v8::HandleScope::~HandleScope(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?Exit@Isolate@v8@@QEAAXXZ (public: void __cdecl v8::Isolate::Exit(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?Dispose@V8@v8@@SA_NXZ (public: static bool __cdecl v8::V8::Dispose(void)) imported in function main

parser-shell.obj : warning LNK4217: locally defined symbol ?ShutdownPlatform@V8@v8@@SAXXZ (public: static void __cdecl v8::V8::ShutdownPlatform(void)) imported in function main



I believe that's a regression.