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| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-02-17 22:25:55 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-02-17 22:25:55 +0100 |
| commit | 8210f857f1a35ec285c972c2951e80ce8807f736 (patch) | |
| tree | 8ede7a4dd5fadc568f9c7f4d828f988a5a620d03 /sys/src/cmd/6c/peep.c | |
| parent | eec5799f4c38c30786031f295a5ab833ab20ee6a (diff) | |
6l: no need to emit rex.w prefix for MOVBQZX and MOVWQZX
as with 32 bit operand size, the upper bits 63:32 are
automatically zeroed in 64bit mode. this gives a shoter
instruction encoding.
Diffstat (limited to 'sys/src/cmd/6c/peep.c')
0 files changed, 0 insertions, 0 deletions