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[ORC] Add CPU name and sub-target features to detectHost

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This commit adds host CPU name and sub-target features to the
`JITTargetMachineBuilder` created by `JITTargetMachineBuilder::detectHost()`.

Differential Revision: https://reviews.llvm.org/D65760

llvm-svn: 367944
This commit is contained in:
Diego Caballero 2019-08-05 23:02:12 +00:00
parent 205f1a60c6
commit 19cf557cf1
1 changed files with 15 additions and 1 deletions
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16
lib/ExecutionEngine/Orc/JITTargetMachineBuilder.cpp
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@ -22,7 +22,21 @@ JITTargetMachineBuilder::JITTargetMachineBuilder(Triple TT)
Expected<JITTargetMachineBuilder> JITTargetMachineBuilder::detectHost() {
// FIXME: getProcessTriple is bogus. It returns the host LLVM was compiled on,
// rather than a valid triple for the current process.
return JITTargetMachineBuilder(Triple(sys::getProcessTriple()));
JITTargetMachineBuilder TMBuilder(Triple(sys::getProcessTriple()));
// Retrieve host CPU name and sub-target features and add them to builder.
// Relocation model, code model and codegen opt level are kept to default
// values.
llvm::SubtargetFeatures SubtargetFeatures;
llvm::StringMap<bool> FeatureMap;
llvm::sys::getHostCPUFeatures(FeatureMap);
for (auto &Feature : FeatureMap)
SubtargetFeatures.AddFeature(Feature.first(), Feature.second);
TMBuilder.setCPU(llvm::sys::getHostCPUName());
TMBuilder.addFeatures(SubtargetFeatures.getFeatures());
return TMBuilder;
}
Expected<std::unique_ptr<TargetMachine>>