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Fine tune nusers when postAdd

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This commit is contained in:
Eddie Hung 2019-09-06 15:11:41 -07:00
parent 0d1d8b4d24
commit ef56f8596f
1 changed files with 3 additions and 3 deletions
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6
passes/pmgen/xilinx_dsp.pmg
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@ -345,10 +345,10 @@ endcode
match ffPmux match ffPmux
if param(dsp, \PREG).as_int() == 0 if param(dsp, \PREG).as_int() == 0
// If ffMmux, new-value net must have exactly three users: ffMmux, ffM and ffPmux // If ffMmux and no postAdd new-value net must have exactly three users: ffMmux, ffM and ffPmux
if !ffMmux || nusers(sigP) == 3 if !ffMmux || postAdd || nusers(sigP) == 3
// Otherwise new-value net must have exactly two users: dsp and ffPmux // Otherwise new-value net must have exactly two users: dsp and ffPmux
if ffMmux || nusers(sigP) == 2 if (ffMmux && !postAdd) || nusers(sigP) == 2
select ffPmux->type.in($mux) select ffPmux->type.in($mux)
// ffPmux output must have two users: ffPmux and ffP.D // ffPmux output must have two users: ffPmux and ffP.D