Zi Xuan Wu 065e0324e5 [CSKY] Add CSKYConstantIslands Pass to lift or duplicate constant pool entry ...

Loading constants inline is expensive on CSKY and it's in general better
to place the constant nearby in code space and then it can be loaded with a
simple 16/32 bit load instruction like lrw.

It needs lift or duplicates constant pool entry to make constant nearby so that lrw instruction can reach.

2022-01-11 16:17:11 +08:00

5.8 KiB

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