[clang] Add reference to documentation of SysVABI

[ZeppLu]

The documentation has already been there in AttrDocs.td, just lacks proper reference

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[llvmbot]

@llvm/pr-subscribers-clang

Author: Zepp (ZeppLu)

Changes

The documentation has already been there in AttrDocs.td, just lacks proper reference

---

Full diff: https://github.com/llvm/llvm-project/pull/85022.diff

1 Files Affected:

• (modified) clang/include/clang/Basic/Attr.td (+1-1)

diff --git a/clang/include/clang/Basic/Attr.td b/clang/include/clang/Basic/Attr.td
index 63efd85dcd4e58..67d87eca16ede8 100644
--- a/clang/include/clang/Basic/Attr.td
+++ b/clang/include/clang/Basic/Attr.td
@@ -2934,7 +2934,7 @@ def Suppress : DeclOrStmtAttr {
 def SysVABI : DeclOrTypeAttr {
   let Spellings = [GCC<"sysv_abi">];
 //  let Subjects = [Function, ObjCMethod];
-  let Documentation = [Undocumented];
+  let Documentation = [SysVABIDocs];
 }
 
 def ThisCall : DeclOrTypeAttr {

[Sirraide]

LGTM.

Really weird that we somehow both have documentation for it, but also didn’t link to it... if it was meant to be undocumented, we shouldn’t have had any documentation for it just lying around unused either.

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