Displaying 3 results from an estimated 3 matches for "raoptim".
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2010 Aug 29
1
[LLVMdev] [Query] Programming Register Allocation
...s for the information.
I still don't know how do I partition registers into different classes from
the virtual registers? For instance, I have the function who which iterates
over the instructions, but I don't know how to write the function which
returns the different register class.
void RAOptimal::Gather(MachineFunction &Fn) {
// Gather just iterates over the blocks, basicblocks, ect. until
// it finds the MachineOperand. When it finds the operand, it
// checks to see if the operand is a register, if so, it parses
// the register to find which set it is suppose to be i...
2010 Aug 29
0
[LLVMdev] [Query] Programming Register Allocation
On Sat, Aug 28, 2010 at 16:20:42 -0400, Jeff Kunkel wrote:
> What I need to know is how to access the machine register classes. Also, I
> need to know which virtual register is to be mapped into each specific
> register class. I assume there is type information on the registers. I need
> to know how to access it.
MachineRegisterInfo::getRegClass will give you the TargetRegisterClass
2010 Aug 28
2
[LLVMdev] [Query] Programming Register Allocation
So I have a good understanding of what and how I want to do in the abstract
sense. I am starting to gain a feel for the code base, and I see that I may
have a allocator up and running much faster than I once thought thanks to
the easy interfaces.
What I need to know is how to access the machine register classes. Also, I
need to know which virtual register is to be mapped into each specific