Stream: git-wasmtime

Topic: wasmtime / Issue #2610 cranelift x64: use the LZCNT instr...

view this post on Zulip Wasmtime GitHub notifications bot (Jan 28 2021 at 11:35):

bnjbvr commented on Issue #2610:

@cfallin done! Also done popcnt, same category of easy todos.

For Clz/Ctz, in theory we could use Tzcount/Lzcount for i128 too: that requires local control flow (e.g. for Clz, lzcount on high component, if it's non zero it's the right result, otherwise the result is lzcount on the low component), so a new Vcode inst. Could be done in a subsequent PR.

Last updated: Oct 23 2024 at 20:03 UTC