Displaying 1 result from an estimated 1 matches for "regclassab".
Did you mean:
regclassa
2018 Apr 10
1
How to finalize instruction lowering after register allocation.
...ers definition point of view, I've first defined the 512 UnitA registers in a RegisterClass RegClassA and the 512 UnitB registers in a RegisterClass RegClassB.
In order to defined registers operands for the SIMD version of FPU instructions, I've then defined 512 registers in a RegisterClass RegClassAB.
The registers from RegClassAB overlap the one the ones of RegClassA and RegClassB in this way RegClassAB.R1 has two subregisters: RegClassA.R1 and RegClassB.R1.
So far, so good. I can generated code for math expression taking advantage of SIMD FPU!
My problem is on the implementation of the BUILD...