diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-02-18 23:34:33 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2015-02-18 23:34:33 +0100 |
| commit | 0037c93433cdda1dccd35d5fc57682fe1c86eb6d (patch) | |
| tree | c0e588e02678b88866ab4278a2540e50934e6948 /sys/src/9/pc64/trap.c | |
| parent | 8210f857f1a35ec285c972c2951e80ce8807f736 (diff) | |
6c: eleminate more MOV instructions
convert:
x = B || W
MOVxLZX a, r; MOVxQZX r, b -> MOVxQZX a, r; MOVQ r, b
MOVxLSX a, r; MOVxQSX r, r -> MOVxQSX a, r; MOVQ r, r
the MOVQ can then be eleminated by copy propagation.
improve subprop() by accepting other mov and lea
instructions as the source op.
Diffstat (limited to 'sys/src/9/pc64/trap.c')
0 files changed, 0 insertions, 0 deletions