Manuel López-Ibáñez - [PING^2] Waddress-of-register (original) (raw)

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:ADDPATCH c++:This patch continues the effort to fix PR7651 [1].

It adds a new option -Waddress-of-register that takes over the function of warning about subscripting an array which has been declared "register" or taking the address of a variable which has been declared "register". The new option is enabled by -Wextra, so we keep the current behaviour but add the ability to enable/disable this individual warning.

Bootstrapped and regression tested with --enable-languages=all on i686-pc-linux-gnu.

OK for mainline?[1] http://gcc.gnu.org/ml/gcc-patches/2006-12/msg01103.html
2006-12-25 Manuel Lopez-Ibanez manu@gcc.gnu.org

PR middle-end/7651

• c.opt (Waddress-of-register): New.
• doc/invoke.texi (Waddress-of-register): Document it. (Wextra): Enabled by -Wextra. (C++ Language Options): Add it.
• c-opts.c (c_common_post_options): Enabled by -Wextra.

cp/ 2006-12-25 Manuel Lopez-Ibanez manu@gcc.gnu.org

PR middle-end/7651

• typeck.c (build_array_ref): Replace Wextra with Waddress-of-register. (cxx_mark_addressable): Likewise.

testsuite/ 2006-12-25 Manuel Lopez-Ibanez manu@gcc.gnu.org

PR middle-end/7651

• g++.dg/warn/register-var-2.C: Delete. Included in ...
• g++.dg/warn/Waddress-of-register.C: New.
• g++.dg/warn/Waddress-of-register-Wextra.C: New
• g++.dg/warn/Waddress-of-register-no.C: New.