[llvm] [AMDGPU] Fix operand definitions for atomic scalar memory instructions. (PR #71799)

[Jay Foad via llvm-commits]

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@@ -909,6 +909,10 @@ class AMDGPUOperand : public MCParsedAsmOperand {
   bool isWaitVDST() const;
   bool isWaitEXP() const;
 
+  auto getPredicate(std::function<bool(const AMDGPUOperand &Op)> P) const {
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jayfoad wrote:

Wouldn't it be simpler to implement a couple more named predicate methods in `AMDGPUOperand`, e.g.:
```
  bool isGLC() { return getImm() & CPol::GLC; }
```
Anyway I don't object if you want to do it this way, but it took me a while to understand.

https://github.com/llvm/llvm-project/pull/71799