[clang] ObjcRuntime.h: Add mips64, aarch64, and riscv64 to non-legacy dispatch (PR #76694)

[David Chisnall via cfe-commits]

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@@ -101,10 +101,17 @@ class ObjCRuntime {
     // The GNUstep runtime uses a newer dispatch method by default from
     // version 1.6 onwards
     if (getKind() == GNUstep && getVersion() >= VersionTuple(1, 6)) {
-      if (Arch == llvm::Triple::arm ||
-          Arch == llvm::Triple::x86 ||
-          Arch == llvm::Triple::x86_64)
+      switch (Arch) {
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davidchisnall wrote:

The version check above is not quite right for these.

AArch64 support is in 1.9.
RV64 in 2.2.

I think mips64 is correct (it looks like I added the code 9 years ago, which probably lines up with the 1.6 release).


https://github.com/llvm/llvm-project/pull/76694