[clang] [RISCV][clang] Optimize memory usage of intrinsic lookup table (PR #77487)

[Yingwei Zheng via cfe-commits]

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@@ -463,7 +464,7 @@ void RISCVIntrinsicManagerImpl::CreateRVVIntrinsicDecl(LookupResult &LR,
 bool RISCVIntrinsicManagerImpl::CreateIntrinsicIfFound(LookupResult &LR,
                                                        IdentifierInfo *II,
                                                        Preprocessor &PP) {
-  StringRef Name = II->getName();
+  StringRef Name = II->getName().substr(8);
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dtcxzyw wrote:

Looks like it is the string length of `__riscv_`.

https://github.com/llvm/llvm-project/pull/77487