================
@@ -291,6 +291,13 @@ def HasStdExtD : Predicate<"Subtarget->hasStdExtD()">,
AssemblerPredicate<(all_of FeatureStdExtD),
"'D' (Double-Precision Floating-Point)">;
+def FeatureStdExtQ
+ : RISCVExtension<2, 2, "Quad-Precision Floating-Point", [FeatureStdExtD]>,
+ RISCVExtensionBitmask<0, 16>;
----------------
wangpc-pp wrote:
Where does the `16` come from? I don't see it in
https://github.com/riscv-non-isa/riscv-c-api-doc/blob/main/src/c-api.adoc#extension-bitmask-definitions.
I think we should remove the `RISCVExtensionBitmask` for now.
https://github.com/llvm/llvm-project/pull/139369
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