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mixed
2011 Nov 25
0
[LLVMdev] Register classes, value types
...on.
I see that the RegisterClass has a list of ValueTypes, and I conclude that I can define a register class to use for the mixed operands that has both integer and floating point valuetypes. I would like to do:
reg:IntRC = IntegerOp...
~or~
reg:FloatRC = FloatOp ...
...
consumingMI regOp:MixedRC
IntRC = [i32], "reg1,...", FloatRC = [f32], "reg1, ...", MixedRC = [i32, f32], "reg1, ...".
Does this approach seem fair? What are the consequences in the backend for the different value types for operands?
/Jonas
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