Keith Randall d5dc490519 cmd/compile: intrinsics for math/bits.TrailingZerosX ... Implement math/bits.TrailingZerosX using intrinsics. Generally reorganize the intrinsic spec a bit. The instrinsics data structure is now built at init time. This will make doing the other functions in math/bits easier. Update sys.CtzX to return int instead of uint{64,32} so it matches math/bits.TrailingZerosX. Improve the intrinsics a bit for amd64. We don't need the CMOV for <64 bit versions. Update #18616 Change-Id: Ic1c5339c943f961d830ae56f12674d7b29d4ff39 Reviewed-on: https://go-review.googlesource.com/38155 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>		2017-03-16 02:44:16 +00:00
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main.go