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Really get rid of 'opt_expr -fine' by being explicit

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This commit is contained in:
Eddie Hung 2019-09-10 14:26:12 -07:00
parent c460d10e60
commit 76eedee089
2 changed files with 33 additions and 9 deletions
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techlibs/xilinx/synth_xilinx.cc
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@ -325,9 +325,6 @@ struct SynthXilinxPass : public ScriptPass
if (!nodsp || help_mode) {
// NB: Xilinx multipliers are signed only
run("techmap -map +/mul2dsp.v -map +/xilinx/dsp_map.v -D DSP_A_MAXWIDTH=25 -D DSP_A_MAXWIDTH_PARTIAL=18 -D DSP_B_MAXWIDTH=18 -D DSP_SIGNEDONLY=1 -D DSP_NAME=$__MUL25X18", "(skip if '-nodsp')");
// Necessary for optimising away $shl cells, as well as $add cells
// that have inputs with 1'b0 LSBs
run("opt_expr -fine", " (skip if '-nodsp')");
run("xilinx_dsp", " (skip if '-nodsp')");
run("chtype -set $mul t:$__soft_mul"," (skip if '-nodsp')");
}