Re: [PATCH 04/50] caller-save.c:add_used_regs

[Jeff Law]

On 08/03/14 07:48, Richard Sandiford wrote:

As noted in https://gcc.gnu.org/ml/gcc-patches/2014-02/msg01391.html
a bitmap-related cleanup turned add_used_regs_1 into a no-op for pseudo
registers, because the result of:

   regno = reg_renumber[regno];

is never used.  This patch does as Steven requested and adds an
assert that no allocated pseudos are seen here.


gcc/
        * caller-save.c: Include rtl-iter.h.
        (add_used_regs_1): Delete.
        (add_used_regs): Use FOR_EACH_SUBRTX rather than for_each_rtx
        to iterate over subrtxes.  Assert that any remaining pseudos
        have been spilled.

OK.
jeff