diff options
| -rw-r--r-- | passes/pmgen/xilinx_dsp.pmg | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/passes/pmgen/xilinx_dsp.pmg b/passes/pmgen/xilinx_dsp.pmg index 3d0b1f2c3..4e174e753 100644 --- a/passes/pmgen/xilinx_dsp.pmg +++ b/passes/pmgen/xilinx_dsp.pmg @@ -277,7 +277,9 @@ match postAdd index <SigBit> port(postAdd, AB)[0] === sigP[0] filter GetSize(port(postAdd, AB)) >= GetSize(sigP) filter port(postAdd, AB).extract(0, GetSize(sigP)) == sigP - filter port(postAdd, AB).extract_end(GetSize(sigP)) == SigSpec(sigP[GetSize(sigP)-1], GetSize(port(postAdd, AB))-GetSize(sigP)) + // Check that remainder of AB is a sign-extension + define <bool> AB_SIGNED (param(postAdd, AB == \A ? \A_SIGNED : \B_SIGNED).as_bool()) + filter port(postAdd, AB).extract_end(GetSize(sigP)) == SigSpec(AB_SIGNED ? sigP[GetSize(sigP)-1] : State::S0, GetSize(port(postAdd, AB))-GetSize(sigP)) set postAddAB AB optional endmatch |