Sam Elliott
ce24d50695
This primarliy applies to the save-restore case, which was using `__riscv_restore_<N>` incorrectly, entirely circumventing the software shadow call stack. This fix keeps the code size improvements of `__riscv_save_<N>` when there is a shadow call stack, but it avoids the incorrect use of `__riscv_restore_<N>`, instead emitting the correct sequence inline. In the future, when there are better versions of `__riscv_save_<N>` and `__riscv_restore_<N>` which support the shadow call stack variants (both hardware and software), then we can revisit this approach and use the correct pairs in all cases.
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