arcv: apex: Register pragma handler after macro expansion.

Use "c_register_pragma_with_expansion()" instead of "c_register_pragma()" to
ensure that "arcv_apex_pragma_intrinsic" is invoked with arguments that
have been macro-expanded.

This allows users to define APEX intrinsic names or parameters using
macros in pragma directives, ensuring the handler processes the
expanded values  rather than raw macro identifiers.

Signed-off-by: Luis Silva <[email protected]>

Author: luismgsilva

gcc/config/riscv/riscv-c.cc

@@ -577,5 +577,5 @@ riscv_register_pragmas (void)
   targetm.resolve_overloaded_builtin = riscv_resolve_overloaded_builtin;
   targetm.check_builtin_call = riscv_check_builtin_call;
   c_register_pragma ("riscv", "intrinsic", riscv_pragma_intrinsic);
-  c_register_pragma (0, "intrinsic", arcv_apex_pragma_intrinsic);
+  c_register_pragma_with_expansion (0, "intrinsic", arcv_apex_pragma_intrinsic);
 }