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[metadata prespecialization] Only Apple or linux.

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Temporarily disable metadata prespecialization on platforms other than
MacOS, iOS, tvOS, watchOS, or Linux.  At the moment, tests are failing
on Windows with linker errors such as

  demangleToMetadata-558ea9.o : error LNK2001: unresolved external symbol $ss5Int64VN
  demangleToMetadata-558ea9.o : error LNK2001: unresolved external symbol $sSSSHsWP

Once the issue leading to those linker errors has been resolved, the
feature will be enabled on Windows.
This commit is contained in:
Nate Chandler
2020-02-05 16:05:03 -08:00
parent 0ae9e68607
commit ae1f41e1b2
39 changed files with 40 additions and 1 deletions
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3
lib/IRGen/IRGenModule.cpp
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@@ -1340,7 +1340,8 @@ bool IRGenModule::shouldPrespecializeGenericMetadata() {
AvailabilityContext::forDeploymentTarget(context);
return IRGen.Opts.PrespecializeGenericMetadata &&
deploymentAvailability.isContainedIn(
context.getPrespecializedGenericMetadataAvailability());
context.getPrespecializedGenericMetadataAvailability()) &&
(Triple.isOSDarwin() || Triple.isTvOS() || Triple.isOSLinux());
}
void IRGenerator::addGenModule(SourceFile *SF, IRGenModule *IGM) {