Haocong.Lu 6a54776fe0 [RISCV] Select SRLI+SLLI for AND with leading ones mask ...

Select SRLI+SLLI for and i64 %x, imm if the imm is a leading ones mask.
It's useful in RV64 when the mask exceeds simm32 (cannot be generated by LUI).

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D121598

2022-03-16 02:10:57 +00:00

5.5 KiB

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