Displaying 3 results from an estimated 3 matches for "integerrc".
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integer_c
2005 Jul 25
1
[LLVMdev] How to partition registers into different RegisterClass?
...: RegisterClass<packed, 128,
[R0, R1, R2, ..., R32,
C0, C1, ..., C200,
V0, ..., V10,
O1, O2, O3, O4]> {
let Methods = [{
iterator allocation_order_end(MachineFunction &MF) const {
return end()-(4+10+200); // only TempReg can be allocated
}];
}
def IntegerRC : RegisterClass<packed, 128,
[I0, I1, ..., I100]>;
And linearly assigning the read-only registers for each definition of them?
--
Tzu-Chien Chiu,
3D Graphics Hardware Enginner,
<URL:http://www.csie.nctu.edu.tw/~jwchiu>
2005 Jul 23
0
[LLVMdev] How to partition registers into different RegisterClass?
On Sat, 23 Jul 2005, Tzu-Chien Chiu wrote:
> 2005/7/23, Chris Lattner <sabre at nondot.org>:
>> What does a 'read only' register mean? Is it a constant (e.g. returns
>> 1.0)? Otherwise, how can it be a useful value?
>
> Yes, it's a constant register.
>
> Because the instruction cannot contain an immediate value, a constant
> value may be stored in
2005 Jul 23
3
[LLVMdev] How to partition registers into different RegisterClass?
2005/7/23, Chris Lattner <sabre at nondot.org>:
>
> What does a 'read only' register mean? Is it a constant (e.g. returns
> 1.0)? Otherwise, how can it be a useful value?
Yes, it's a constant register.
Because the instruction cannot contain an immediate value, a constant
value may be stored in a constant register, and it's defined _before_
the program starts by