On 06/11/10 10:48, Bernd Schmidt wrote:
On 06/11/2010 06:32 PM, Jeff Law wrote:
But shouldn't having an invariant form just decrease the priority
for pseudo 59 to get a hard register? The NO_REGS preferencing will
totally disable register allocation for pseudo 59.
And that's intended, because from the costs we've concluded that it's
better _not_ to allocate a hard reg to this pseudo.
OK. I wasn't aware that's how we marked a pseudo that shouldn't get a
hard reg due to costing considerations. Thanks for explaining.
Jeff
