Displaying 1 result from an estimated 1 matches for "rol_dp_16_once".
2013 Nov 24
0
[LLVMdev] [llvmdev] Specifying / modeling copying semantics in more detail
...ult, though. An example:
%a<def> = COPY %w04
asl_a_16_once %a<imp-def>, %n_flag<imp-def,dead>,
%z_flag<imp-def,dead>, %c_flag<imp-def>, %a<imp-use,kill>
%w02<def> = COPY %a<kill>
%w00<def> = COPY %w06
%w00<def,tied1> = rol_dp_16_once %w00<kill,tied0>,
%n_flag<imp-def,dead>, %z_flag<imp-def,dead>, %c_flag<imp-def,dead>,
%c_flag<imp-use,kill>
%a<def> = COPY %w02<kill>
The MachineCopyPropagation pass eliminates the copy to %w02 on the third
line because it thinks that %w00 and %w06 ca...