CompilerSmith (Apr 04 2024 at 17:46): CompilerSmith (Apr 04 2024 at 17:46):Hi, I have a quick question about regalloc2. The library operates over VReg structures however there seems to be no way to specify a bitwidth in VReg.
I want to use regalloc2 to do register allocation for me in my IR. However I can specify bitwidth of virtual registers in my IR and i want to convey that to regalloc2.
How can regalloc2 do register allocation on different sized registers...?
https://docs.rs/regalloc2/0.9.3/regalloc2/struct.VReg.html
^ docs for VReg
CompilerSmith (Apr 04 2024 at 17:52):If i build a MachineEnv for x86 would i only specify the full width registers and then the register allocator would allow me to use the full width of the register?
Chris Fallin (Apr 04 2024 at 17:56):@CompilerSmith this question was moved to the #cranelift topic, please see my answer there
Chris Fallin (Apr 04 2024 at 17:56):(it looks like it was asked twice and only one copy of the question was moved)
Notification Bot (Apr 04 2024 at 18:02):CompilerSmith has marked this topic as resolved.
Last updated: Dec 23 2024 at 12:05 UTC