[clang] [PAC] Implement function pointer re-signing (PR #98847)

[Akira Hatanaka via cfe-commits]

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@@ -2373,7 +2373,9 @@ Value *ScalarExprEmitter::VisitCastExpr(CastExpr *CE) {
       DestLV.setTBAAInfo(TBAAAccessInfo::getMayAliasInfo());
       return EmitLoadOfLValue(DestLV, CE->getExprLoc());
     }
-    return Builder.CreateBitCast(Src, DstTy);
+
+    llvm::Value *Result = Builder.CreateBitCast(Src, DstTy);
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ahatanak wrote:

Yes, a couple of tests including `test_cast_from_opaque` test this path.

https://github.com/llvm/llvm-project/pull/98847