[clang] [llvm] [RISCV] Teach .option arch to support experimental extensions. (PR #89727)

Craig Topper via cfe-commits cfe-commits at lists.llvm.org
Tue Apr 23 22:01:58 PDT 2024


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@@ -2824,8 +2827,12 @@ bool RISCVAsmParser::parseDirectiveOption() {
         break;
       }
 
-      auto Ext = llvm::lower_bound(RISCVFeatureKV, Arch);
-      if (Ext == std::end(RISCVFeatureKV) || StringRef(Ext->Key) != Arch ||
+      std::string &&Feature = RISCVISAInfo::getTargetFeatureForExtension(Arch);
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topperc wrote:

Why an rvalue reference?

https://github.com/llvm/llvm-project/pull/89727


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