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| author | Keith Randall <khr@golang.org> | 2016-04-14 10:28:35 -0700 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2016-04-14 21:09:03 +0000 |
| commit | 98b6febcef8f6d7411a77e9e828df681871a28ad (patch) | |
| tree | 19d2a893049af75111761a7216f1cceafac3de92 /src/runtime/atomic_pointer.go | |
| parent | 12e3b184f0fe15787be7f0837d2b168a4fbe60be (diff) | |
| download | go-98b6febcef8f6d7411a77e9e828df681871a28ad.tar.xz | |
runtime/internal/sys: better fallback algorithms for intrinsics
Use deBruijn sequences to count low-order zeros.
Reorg bswap to not use &^, it takes another instruction on x86.
Change-Id: I4a5ed9fd16ee6a279d88c067e8a2ba11de821156
Reviewed-on: https://go-review.googlesource.com/22084
Reviewed-by: David Chase <drchase@google.com>
Diffstat (limited to 'src/runtime/atomic_pointer.go')
0 files changed, 0 insertions, 0 deletions