================
@@ -1831,6 +1831,22 @@ TEST_P(AArch64ExtensionDependenciesBaseCPUTestFixture,
}
}
+TEST(TargetParserTest, testAArch64ReconstructFromParsedFeatures) {
+ AArch64::ExtensionSet Extensions;
+ std::vector<std::string> FeatureOptions = {
+ "-sve2", "-Baz", "+sve", "+FooBar", "+sve2", "+neon", "-sve",
+ };
+ std::vector<std::string> NonExtensions;
+ Extensions.reconstructFromParsedFeatures(FeatureOptions, NonExtensions);
+
+ std::vector<std::string> NonExtensionsExpected = {"-Baz", "+FooBar"};
+ ASSERT_THAT(NonExtensions, testing::ContainerEq(NonExtensionsExpected));
+ std::vector<StringRef> Features;
+ Extensions.toLLVMFeatureList(Features);
+ std::vector<StringRef> FeaturesExpected = {"+neon", "-sve", "+sve2"};
----------------
labrinea wrote:
I thought we were trying to fix reconstructFromParsedFeatures so that it honors
negative features. If you look at the code it does `Enabled.reset` which should
remove a feature and its dependencies.
If I am not mistaken at the point of calling reconstructFromParsedFeatures the
command line arguments should already be processed having no contradictions
like -featureA, +featureA (or reversed).
https://github.com/llvm/llvm-project/pull/142236
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