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Revert "Fix TODOs"

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This reverts commit 8674a6c68d563908014d16671567459499c6dc99.
This commit is contained in:
Eddie Hung 2019-10-04 13:33:27 -07:00
parent 6d68972619
commit 52583ecff8
2 changed files with 20 additions and 0 deletions
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15
passes/pmgen/xilinx_dsp.pmg
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@ -103,6 +103,11 @@ code sigA sigB sigC sigD sigM clock
}
else
sigM = P;
// TODO: Check if necessary
// This sigM could have no users if downstream $add
// is narrower than $mul result, for example
if (sigM.empty())
reject;
clock = port(dsp, \CLK, SigBit());
endcode
@ -154,6 +159,16 @@ match preAdd
optional
endmatch
code sigA sigD
// TODO: Check if this is necessary?
if (preAdd) {
sigA = port(preAdd, \A);
sigD = port(preAdd, \B);
if (GetSize(sigA) < GetSize(sigD))
std::swap(sigA, sigD);
}
endcode
// (4) If pre-adder was present, find match 'A' input for A2REG
// If pre-adder was not present, move ADREG to A2REG
// Then match 'A' input for A1REG