On Feb 27, 2014, Alexandre Oliva aol...@redhat.com wrote:
I wasn't entirely sure this wouldn't invalidate assumptions made in
callers of cselib_preserve_only_values (the function called at the end
of each extended basic block), but some analysis, plus comparing before
and after assembly
On Thu, Feb 27, 2014 at 6:54 AM, Alexandre Oliva aol...@redhat.com wrote:
We indirectly call remove_useless_values quite often during
vt_initialize; at least once per extended basic block. On functions
with thousands of small basic blocks, each adding permanent and
temporary entries to the
We indirectly call remove_useless_values quite often during
vt_initialize; at least once per extended basic block. On functions
with thousands of small basic blocks, each adding permanent and
temporary entries to the table, that turns out to be quite expensive:
the permanent entries pile up and
