[PATCH] D132561: [Sparc] Mark the g0 register as constant

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

Test would be nice



================
Comment at: llvm/lib/Target/Sparc/SparcRegisterInfo.td:130
+let isConstant = true in
 def G0 : Ri< 0, "G0">, DwarfRegNum<[0]>;
 def G1 : Ri< 1, "G1">, DwarfRegNum<[1]>;
----------------
I think if you only want this to be G0, it's clearer to do:


```
def G0 ... {
  let isConstant = true
}
```


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D132561/new/

https://reviews.llvm.org/D132561