allow two immediates
This lets us move the calculation of extract's shift up to Builder time.
Most immediates live in y.imm now, with extract using both y.imm (mask)
and z.imm (shift), and pack using z.imm for its shift because it needs
both x and y regs.
Change-Id: I0081382f4d4c02198cae5819294b3adeea7341bb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/218249
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
3 files changed