[clang] [X86][CFE] Support EGPR in inline assembly. (PR #91323)

[Shengchen Kan via cfe-commits]

================
@@ -83,8 +85,23 @@ const TargetInfo::AddlRegName AddlRegNames[] = {
     {{"r13d", "r13w", "r13b"}, 43},
     {{"r14d", "r14w", "r14b"}, 44},
     {{"r15d", "r15w", "r15b"}, 45},
+    {{"r16d", "r16w", "r16b"}, 165},
----------------
KanRobert wrote:

Where does the 165 come from?

https://github.com/llvm/llvm-project/pull/91323