[InlineAsm] Add constraint A to getMemConstraintName

[wangpc]

Summary

We will get an assertion of 'Unknown memory constraint' when we dump
MachineOperand with constraint A.

[wangpc]

Oops, we should have fixed it in D124431. Sorry @Jim, I didn't know it.

[Jim]

llvm/include/llvm/IR/InlineAsm.h

446

The order look like is low case with alphabetical, capital with alphabetical, ..

[wangpc]

Closed as I want to use this patch to be familiar with Github workflow(https://github.com/llvm/llvm-project/pull/65292).
Thanks all!

llvm/include/llvm/IR/InlineAsm.h

static StringRef getMemConstraintName(unsigned Constraint) {
     case InlineAsm::Constraint_i:
       return "i";
     case InlineAsm::Constraint_k:
       return "k";
     case InlineAsm::Constraint_m:
       return "m";
     case InlineAsm::Constraint_o:
       return "o";
+    case InlineAsm::Constraint_A:
+      return "A";
     case InlineAsm::Constraint_v:
       return "v";
     case InlineAsm::Constraint_Q:
       return "Q";
     case InlineAsm::Constraint_R:
       return "R";
     case InlineAsm::Constraint_S:
       return "S";