On 6/10/2022 9:40 AM, Segher Boessenkool wrote:
Hi!
On Fri, Jun 10, 2022 at 07:52:57PM +0530, Surya Kumari Jangala wrote:
In check_new_reg_p, the nregs of a du chain is computed by obtaining the MODE
of the first element in the chain, and then calling hard_regno_nregs() with the
MODE. But the first element of the chain can be a DEBUG_INSN whose mode need
not be the same as the rest of the elements in the du chain. This
was resulting in fcompare-debug failure as check_new_reg_p was returning a
different result with -g for the same candidate register. We can instead obtain
nregs from the du chain itself.
Great, thanks for finding and fixing this! I cannot approve it, you'll
have to wait for someone who can. It looks fine to me, but that does
not mean so much in regrename.c :-)
I'll go ahead and ACK the regrename bits. So as soon as you're happy
with the testsuite bits, this is good to go.
jeff
