[clang] [llvm] [RISCV][VLS] Support RISCV VLS calling convention (PR #100346)

[Kito Cheng via llvm-commits]

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@@ -1953,7 +1953,7 @@ class alignas(TypeAlignment) Type : public ExtQualsTypeCommonBase {
     /// Extra information which affects how the function is called, like
     /// regparm and the calling convention.
     LLVM_PREFERRED_TYPE(CallingConv)
-    unsigned ExtInfo : 13;
+    unsigned ExtInfo : 18;
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kito-cheng wrote:

I incline don't touch FunctionTypeBitfields here, because it's RISC-V only.

https://github.com/llvm/llvm-project/pull/100346