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| author | Ilya Tocar <ilya.tocar@intel.com> | 2017-12-07 10:56:45 -0600 |
|---|---|---|
| committer | Ilya Tocar <ilya.tocar@intel.com> | 2018-02-14 19:56:57 +0000 |
| commit | de4edf3de7acda2cc7da8764ecdb3ff2e85c7a2d (patch) | |
| tree | 6151cc9d479bc3d684577b3a87c704d6c3aba7b0 /src/encoding | |
| parent | 9c4fd4626caefa0566e2d853c02912d559c01f62 (diff) | |
| download | go-de4edf3de7acda2cc7da8764ecdb3ff2e85c7a2d.tar.xz | |
cmd/compile/internal/amd64: update popcnt code generation
Popcnt has false dependency on output register and generates
MOVQ $0, reg to break it. But recently we switched MOVQ $0, reg
encoding from xor reg, reg to actual mov $0, reg. This CL updates
code generation for popcnt to use actual XOR.
Change-Id: I4c1fc11e85758b53ba2679165fa55614ec54b27d
Reviewed-on: https://go-review.googlesource.com/82516
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/encoding')
0 files changed, 0 insertions, 0 deletions