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

This commit is contained in:
Eddie Hung 2019-11-25 12:42:09 -08:00
commit d087024caf
10 changed files with 83 additions and 18 deletions

View file

@ -20,9 +20,9 @@ design -load postopt # load the post-opt design (otherwise equiv_opt loads the p
cd adffn # Constrain all select calls below inside the top module
select -assert-count 1 t:BUFG
select -assert-count 1 t:FDCE
select -assert-count 1 t:LUT1
select -assert-count 1 t:INV
select -assert-none t:BUFG t:FDCE t:LUT1 %% t:* %D
select -assert-none t:BUFG t:FDCE t:INV %% t:* %D
design -load read

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@ -8,7 +8,7 @@ cd top # Constrain all select calls below inside the top module
select -assert-count 1 t:BUFG
select -assert-count 8 t:FDCE
select -assert-count 1 t:LUT1
select -assert-count 1 t:INV
select -assert-count 7 t:MUXCY
select -assert-count 8 t:XORCY
select -assert-none t:BUFG t:FDCE t:LUT1 t:MUXCY t:XORCY %% t:* %D
select -assert-none t:BUFG t:FDCE t:INV t:MUXCY t:XORCY %% t:* %D

View file

@ -18,9 +18,9 @@ equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalen
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd latchn # Constrain all select calls below inside the top module
select -assert-count 1 t:LDCE
select -assert-count 1 t:LUT1
select -assert-count 1 t:INV
select -assert-none t:LDCE t:LUT1 %% t:* %D
select -assert-none t:LDCE t:INV %% t:* %D
design -load read

View file

@ -5,7 +5,7 @@ equiv_opt -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd top # Constrain all select calls below inside the top module
select -assert-count 1 t:LUT1
select -assert-count 1 t:INV
select -assert-count 6 t:LUT2
select -assert-count 2 t:LUT4
select -assert-none t:LUT1 t:LUT2 t:LUT4 %% t:* %D
select -assert-none t:INV t:LUT2 t:LUT4 %% t:* %D

View file

@ -4,6 +4,7 @@ module dff ((* clkbuf_sink *) input clk, input d, output q); endmodule
module dffe ((* clkbuf_sink *) input c, input d, e, output q); endmodule
module latch (input e, d, output q); endmodule
module clkgen (output o); endmodule
module inv ((* clkbuf_inv = "i" *) output o, input i); endmodule
module top(input clk1, clk2, clk3, d, e, output [4:0] q);
wire clk4, clk5, clk6;
@ -17,12 +18,18 @@ dff s6 (.clk(clk6), .d(d), .q(q[4]));
endmodule
module sub(output sclk4, output sclk5, output sclk6, input sd, output sq);
wire sclk7, sclk8, sclk9;
wire siq;
wire tmp;
clkgen s7(.o(sclk4));
clkgen s8(.o(sclk5));
clkgen s9(.o(tmp));
clkbuf s10(.i(tmp), .o(sclk6));
dff s11(.clk(sclk4), .d(sd), .q(sq));
clkbuf s10(.i(tmp), .o(sclk7));
dff s11(.clk(sclk4), .d(sd), .q(siq));
inv s15(.i(sclk7), .o(sclk6));
clkgen s12(.o(sclk8));
inv s13(.o(sclk9), .i(sclk8));
dff s14(.clk(sclk9), .d(siq), .q(sq));
endmodule
EOT
@ -34,7 +41,7 @@ design -save ref
design -load ref
clkbufmap -buf clkbuf o:i
select -assert-count 3 top/t:clkbuf
select -assert-count 2 sub/t:clkbuf
select -assert-count 3 sub/t:clkbuf
select -set clk1 w:clk1 %a %co t:clkbuf %i # Find 'clk1' fanouts that are 'clkbuf'
select -assert-count 1 @clk1 # Check there is one such fanout
select -assert-count 1 @clk1 %x:+[o] %co c:s* %i # Check that the 'o' of that clkbuf drives one fanout
@ -51,6 +58,10 @@ select -set sclk4 w:sclk4 %a %ci t:clkbuf %i
select -assert-count 1 @sclk4
select -assert-count 1 @sclk4 %x:+[o] %co c:s11 %i
select -assert-count 1 @sclk4 %x:+[i] %ci c:s7 %i
select -set sclk8 w:sclk8 %a %ci t:clkbuf %i
select -assert-count 1 @sclk8
select -assert-count 1 @sclk8 %x:+[o] %co c:s13 %i
select -assert-count 1 @sclk8 %x:+[i] %ci c:s12 %i
# ----------------------
@ -72,7 +83,7 @@ setattr -set clkbuf_inhibit 1 w:clk1
setattr -set buffer_type "bufg" w:clk2
clkbufmap -buf clkbuf o:i w:* a:buffer_type=none a:buffer_type=bufr %u %d
select -assert-count 3 top/t:clkbuf
select -assert-count 2 sub/t:clkbuf
select -assert-count 3 sub/t:clkbuf
select -set clk1 w:clk1 %a %co t:clkbuf %i # Find 'clk1' fanouts that are 'clkbuf'
select -assert-count 1 @clk1 # Check there is one such fanout
select -assert-count 1 @clk1 %x:+[o] %co c:s* %i # Check that the 'o' of that clkbuf drives one fanout
@ -93,4 +104,4 @@ clkbufmap -buf clkbuf o:i w:* a:buffer_type=none a:buffer_type=bufr %u %d
select -assert-count 0 w:clk1 %a %co t:clkbuf %i
select -assert-count 0 w:clk2 %a %co t:clkbuf %i
select -assert-count 0 top/t:clkbuf
select -assert-count 1 sub/t:clkbuf
select -assert-count 2 sub/t:clkbuf