Sep 20 – 24, 2021
US/Pacific timezone

BoF: Register pressure sensitivity in the gcc middle end

Sep 23, 2021, 10:15 AM
GNU Tools track/Virtual-Room (LPC Virtual)

GNU Tools track/Virtual-Room

LPC Virtual

GNU Tools Track GNU Tools Track


Aaron Sawdey (IBM)


There are a number of optimizations done in the middle end that would benefit from understanding the amount of register pressure. Unrolling, inlining, and parallel reassociation are some that come to mind immediately. I think it would be good to have a discussion about how these optimizations might get pressure information to know how aggressive they should be.

I agree to abide by the anti-harassment policy I agree

Primary author

Aaron Sawdey (IBM)

Presentation materials

Diamond Sponsor

Platinum Sponsor

Gold Sponsors

Silver Sponsors

Speaker Gift Sponsor

T-Shirt Sponsor

Conference Services provided by