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authorEddie Hung <eddie@fpgeh.com>2019-10-04 12:43:56 -0700
committerEddie Hung <eddie@fpgeh.com>2019-10-04 22:31:04 -0700
commit7de9c33931020068b285e262bbf239385fcb5c2d (patch)
tree7b46e853474ce4c3b1cccc0eb321cb1a611aa400 /passes
parent983068103e24c33a1b70eb90dd72fdfaf292e1bd (diff)
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Fix TODOs
Diffstat (limited to 'passes')
-rw-r--r--passes/pmgen/xilinx_dsp.pmg15
-rw-r--r--passes/pmgen/xilinx_dsp_CREG.pmg5
2 files changed, 0 insertions, 20 deletions
diff --git a/passes/pmgen/xilinx_dsp.pmg b/passes/pmgen/xilinx_dsp.pmg
index bcf966a8a..6b6151564 100644
--- a/passes/pmgen/xilinx_dsp.pmg
+++ b/passes/pmgen/xilinx_dsp.pmg
@@ -103,11 +103,6 @@ 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
@@ -159,16 +154,6 @@ 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
diff --git a/passes/pmgen/xilinx_dsp_CREG.pmg b/passes/pmgen/xilinx_dsp_CREG.pmg
index 38a5a8d24..5697ee737 100644
--- a/passes/pmgen/xilinx_dsp_CREG.pmg
+++ b/passes/pmgen/xilinx_dsp_CREG.pmg
@@ -79,11 +79,6 @@ endcode
// (attached to at most two $mux cells that implement clock-enable or
// reset functionality, using a subpattern discussed below)
code argQ ffC ffCcemux ffCrstmux ffCcepol ffCrstpol sigC clock
- // TODO: Any downside to allowing this?
- // If this DSP implements an accumulator, do not attempt to match
- if (sigC == sigP)
- reject;
-
argQ = sigC;
subpattern(in_dffe);
if (dff) {