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Merge remote-tracking branch 'origin/master' into xc7dsp

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This commit is contained in:
Eddie Hung 2019-09-18 12:40:21 -07:00
commit f7dbfef792
3 changed files with 44 additions and 15 deletions
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26
passes/pmgen/peepopt_dffmux.pmg
View file

@ -42,6 +42,12 @@ code
rst = port(rstmux, rstmuxBA).as_const();
int width = GetSize(D);
SigSpec &ceA = cemux->connections_.at(\A);
SigSpec &ceB = cemux->connections_.at(\B);
SigSpec &ceY = cemux->connections_.at(\Y);
SigSpec &dffD = dff->connections_.at(\D);
SigSpec &dffQ = dff->connections_.at(\Q);
if (D[width-1] == D[width-2]) {
did_something = true;
@ -61,12 +67,12 @@ code
}
}
cemux->connections_.at(\A).remove(i, width-i);
cemux->connections_.at(\B).remove(i, width-i);
cemux->connections_.at(\Y).remove(i, width-i);
ceA.remove(i, width-i);
ceB.remove(i, width-i);
ceY.remove(i, width-i);
cemux->fixup_parameters();
dff->connections_.at(\D).remove(i, width-i);
dff->connections_.at(\Q).remove(i, width-i);
dffD.remove(i, width-i);
dffQ.remove(i, width-i);
dff->fixup_parameters();
log("dffcemux pattern in %s: dff=%s, cemux=%s; removed top %d bits.\n", log_id(module), log_id(dff), log_id(cemux), width-i);
@ -88,11 +94,11 @@ code
if (init == State::Sx || init == D[i].data) {
count++;
module->connect(Q[i], D[i]);
cemux->connections_.at(\A).remove(i);
cemux->connections_.at(\B).remove(i);
cemux->connections_.at(\Y).remove(i);
dff->connections_.at(\D).remove(i);
dff->connections_.at(\Q).remove(i);
ceA.remove(i);
ceB.remove(i);
ceY.remove(i);
dffD.remove(i);
dffQ.remove(i);
}
}
if (count > 0) {

5
passes/pmgen/peepopt_shiftmul.pmg
View file

@ -50,9 +50,8 @@ code
if (GetSize(const_factor_cnst) > 20)
reject;
if (shift->type.in($shift, $shiftx))
if (GetSize(port(shift, \Y)) > const_factor)
reject;
if (GetSize(port(shift, \Y)) > const_factor)
reject;
int factor_bits = ceil_log2(const_factor);
SigSpec mul_din = port(mul, const_factor_port == \A ? \B : \A);