[clang] [CIR] X86 vector fcmp-sse vector builtins (PR #167125)

[Andy Kaylor via cfe-commits]

================
@@ -43,7 +43,56 @@ mlir::Value CIRGenFunction::emitX86BuiltinExpr(unsigned builtinID,
   // Find out if any arguments are required to be integer constant expressions.
   assert(!cir::MissingFeatures::handleBuiltinICEArguments());
 
-  switch (builtinID) {
+  llvm::SmallVector<mlir::Value, 4> Ops;
+
+  // Find out if any arguments are required to be integer constant expressions.
+  unsigned ICEArguments = 0;
+  ASTContext::GetBuiltinTypeError Error;
+  getContext().GetBuiltinType(BuiltinID, Error, &ICEArguments);
+  assert(Error == ASTContext::GE_None && "Should not codegen an error");
----------------
andykaylor wrote:

```suggestion
  assert(error == ASTContext::GE_None && 
         "builtinID should be checked before calling emitX86BuiltinExpr");
```

https://github.com/llvm/llvm-project/pull/167125