On 06/05/2012 07:59 PM, Hans-Peter Nilsson wrote:
On Fri, 25 May 2012, DJ Delorie wrote:
If I apply this patch, which checks for duplicate hard registers within
-fira-share-save-slots, the following *-elf targets fail due to the assert:
bfin cris m32c rl78 rx sh sh64 v850
Oop. An no clue as to what's wrong.
Can you pretty please make the test-case n'all sent
down-thread into a PR?
I haven't had a chance to investigate, but what we're looking for is
multiple pseudos assigned to the same caller-saved hard reg live across
a call.
In general, that would be the sign of a bug elsewhere, with the
exception of the case where the pseudos are known to have the same value.
jeff
