[llvm-branch-commits] [clang] [clang] Define ptrauth_sign_constant builtin. (PR #93904)

[Daniil Kovalev via llvm-branch-commits]

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@@ -2061,6 +2071,58 @@ ConstantLValueEmitter::VisitCallExpr(const CallExpr *E) {
   }
 }
 
+ConstantLValue
+ConstantLValueEmitter::emitPointerAuthSignConstant(const CallExpr *E) {
+  llvm::Constant *UnsignedPointer = emitPointerAuthPointer(E->getArg(0));
+  unsigned Key = emitPointerAuthKey(E->getArg(1));
+  llvm::Constant *StorageAddress;
+  llvm::Constant *OtherDiscriminator;
+  std::tie(StorageAddress, OtherDiscriminator) =
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kovdan01 wrote:

Maybe just use a structured binding declaration like this?

```
  auto [StorageAddress, OtherDiscriminator] =
      emitPointerAuthDiscriminator(E->getArg(2));
```

Or do you want to have separate declarations with explicitly set types?

https://github.com/llvm/llvm-project/pull/93904