[PATCH] D86215: [TableGen][GlobalISel] Fix handling of zero_reg

[Bjorn Pettersson via Phabricator via llvm-commits]

bjope added inline comments.


================
Comment at: llvm/utils/TableGen/GlobalISelEmitter.cpp:2670
+
+  StringRef findNamespaceForZeroReg() const {
+    // Take value of first Namespace encountered in any defs. We assume that
----------------
Maybe one can add something like this to CodeGenTaget (putting the code close to the getInstNamespace support):

```
StringRef CodeGenTarget::getRegNamespace() const {
  auto &RegClasses = RegBank.getRegClasses();
  return RegClasses.size() > 0 ? RegClasses.front().Namespace : "";
}
```

and then use `Target.getRegNamespace()` to get it.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86215/new/

https://reviews.llvm.org/D86215