Codegen: don't pun float func arguments

Author: xal-0

src/intrinsics.cpp

@@ -1434,8 +1434,8 @@ static jl_cgval_t emit_intrinsic(jl_codectx_t &ctx, intrinsic f, jl_value_t **ar
         if (!jl_is_primitivetype(xinfo.typ))
             return emit_runtime_call(ctx, f, argv, nargs);
         Type *xtyp = bitstype_to_llvm(xinfo.typ, ctx.builder.getContext(), true);
-        if (float_func()[f])
-            xtyp = FLOATT(xtyp);
+        if (float_func()[f] && !xtyp->isFloatingPointTy())
+            xtyp = NULL;
         else
             xtyp = INTT(xtyp, DL);
         if (!xtyp)