================
@@ -161,6 +162,39 @@ static int PrintSupportedExtensions(std::string TargetStr)
{
return 0;
}
+static int PrintEnabledExtensions(const TargetOptions& TargetOpts) {
+ std::string Error;
+ const llvm::Target *TheTarget =
+ llvm::TargetRegistry::lookupTarget(TargetOpts.Triple, Error);
+ if (!TheTarget) {
+ llvm::errs() << Error;
+ return 1;
+ }
+
+ llvm::TargetOptions BackendOptions;
+ std::string FeaturesStr = llvm::join(TargetOpts.FeaturesAsWritten, ",");
+ std::unique_ptr<llvm::TargetMachine> TheTargetMachine(
+ TheTarget->createTargetMachine(TargetOpts.Triple, TargetOpts.CPU,
FeaturesStr, BackendOptions, std::nullopt));
+ const llvm::Triple &MachineTriple = TheTargetMachine->getTargetTriple();
+ const llvm::MCSubtargetInfo *MCInfo = TheTargetMachine->getMCSubtargetInfo();
+ const std::vector<llvm::SubtargetFeatureKV> Features =
+ MCInfo->getEnabledProcessorFeatures();
+
+ std::vector<llvm::StringRef> EnabledFeatureNames;
+ for (const llvm::SubtargetFeatureKV &feature : Features)
+ EnabledFeatureNames.push_back(feature.Key);
----------------
tmatheson-arm wrote:
Maybe we shouldn't throw away the type information in
`llvm::SubtargetFeatureKV` before `printEnabledExtensions`. It is not clear
what `EnabledFeatureNames` contains, since it is just a vector of strings. i.e.
are they internal names, extension names, subtarget feature names, etc.
https://github.com/llvm/llvm-project/pull/95805
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