================
@@ -562,4 +562,60 @@ bool SemaPPC::BuiltinVSX(CallExpr *TheCall) {
return false;
}
+bool SemaPPC::checkTargetClonesAttr(
+ SmallVectorImpl<StringRef> &Params, SmallVectorImpl<SourceLocation> &Locs,
+ SmallVectorImpl<SmallString<64>> &NewParams) {
+ using namespace DiagAttrParams;
+
+ assert(Params.size() == Locs.size() &&
+ "Mismatch between number of string parameters and locations");
+
+ bool HasDefault = false;
+ bool HasComma = false;
+ for (unsigned I = 0, E = Params.size(); I < E; ++I) {
+ const StringRef Param = Params[I].trim();
+ const SourceLocation &Loc = Locs[I];
+
+ if (Param.empty() || Param.ends_with(','))
+ return Diag(Loc, diag::warn_unsupported_target_attribute)
+ << Unsupported << None << "" << TargetClones;
+
+ if (Param.contains(','))
+ HasComma = true;
+
+ StringRef LHS;
+ StringRef RHS = Param;
+ do {
+ std::tie(LHS, RHS) = RHS.split(',');
+ LHS = LHS.trim();
+ const SourceLocation &CurLoc =
+ Loc.getLocWithOffset(LHS.data() - Param.data());
+
+ if (LHS.starts_with("cpu=")) {
+ if (!getASTContext().getTargetInfo().isValidCPUName(
+ LHS.drop_front(sizeof("cpu=") - 1)))
+ return Diag(CurLoc, diag::warn_unsupported_target_attribute)
+ << Unsupported << CPU << LHS.drop_front(sizeof("cpu=") - 1)
+ << TargetClones;
+ } else if (LHS == "default")
+ HasDefault = true;
+ else if (!getASTContext().getTargetInfo().isValidFeatureName(LHS) ||
+ getASTContext().getTargetInfo().getFMVPriority(LHS) == 0)
+ return Diag(CurLoc, diag::warn_unsupported_target_attribute)
+ << Unsupported << None << LHS << TargetClones;
+
+ if (llvm::is_contained(NewParams, LHS))
+ Diag(CurLoc, diag::warn_target_clone_duplicate_options);
+ // Note: Add even if there are duplicates, since it changes name
mangling.
+ NewParams.push_back(LHS);
+ } while (!RHS.empty());
+ }
+ if (HasComma && Params.size() > 1)
+ Diag(Locs[0], diag::warn_target_clone_mixed_values);
----------------
diggerlin wrote:
it looks we do not have test case for it?
https://github.com/llvm/llvm-project/pull/177428
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