On 04/21/2015 07:24 AM, tbsaunde+...@tbsaunde.org wrote:
From: Trevor Saunders <tbsaunde+...@tbsaunde.org>
gcc/ChangeLog:
2015-04-21 Trevor Saunders <tbsaunde+...@tbsaunde.org>
* combine.c (find_single_use): Remove HAVE_cc0 ifdef for code
that is trivially ded on non cc0 targets.
(simplify_set): Likewise.
(mark_used_regs_combine): Likewise.
* cse.c (new_basic_block): Likewise.
(fold_rtx): Likewise.
(cse_insn): Likewise.
(cse_extended_basic_block): Likewise.
(set_live_p): Likewise.
* rtlanal.c (canonicalize_condition): Likewise.
* simplify-rtx.c (simplify_binary_operation_1): Likewise.
OK. I find myself wondering if the conditionals should look like
if (HAVE_cc0
&& (whatever))
But I doubt it makes any measurable difference. It's something we can
always add in the future if we feel the need to avoid the runtime checks
for things that aren't ever going to happen on most modern targets.
jeff
