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Merge pull request #2238 from YosysHQ/mwk/dfflegalize-anlogic 

anlogic: Use dfflegalize.
This commit is contained in:
Miodrag Milanović 2020-07-16 18:07:58 +02:00 committed by GitHub
parent b74eb598bc 3050454d6e
commit 910f421324
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 49 additions and 62 deletions
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38
techlibs/anlogic/cells_map.v
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@ -1,31 +1,17 @@
module \$_DFF_N_ (input D, C, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(1'b0)); endmodule
module \$_DFF_P_ (input D, C, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(1'b0)); endmodule
module \$_DFFE_PN0P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C) ,.ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DFFE_PN1P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DFFE_PP0P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DFFE_PP1P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), . SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DFFE_NN_ (input D, C, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(E), .sr(1'b0)); endmodule
module \$_DFFE_NP_ (input D, C, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(E), .sr(1'b0)); endmodule
module \$_DFFE_PN_ (input D, C, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(1'b0)); endmodule
module \$_DFFE_PP_ (input D, C, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'bx), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(1'b0)); endmodule
module \$_SDFFE_PN0P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C) ,.ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_SDFFE_PN1P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_SDFFE_PP0P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_SDFFE_PP1P_ (input D, C, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), . SRMODE("SYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(E), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DFF_NN0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule
module \$_DFF_NN1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule
module \$_DFF_NP0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule
module \$_DFF_NP1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(~C), .ce(1'b1), .sr(R)); endmodule
module \$_DFF_PN0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C) , .ce(1'b1), .sr(R)); endmodule
module \$_DFF_PN1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule
module \$_DFF_PP0_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule
module \$_DFF_PP1_ (input D, C, R, output Q); AL_MAP_SEQ #(.DFFMODE("FF"), .REGSET(1'b1), .SRMUX("SR"), . SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(C), .ce(1'b1), .sr(R)); endmodule
module \$_DLATCH_N_ (E, D, Q);
wire [1023:0] _TECHMAP_DO_ = "simplemap; opt";
input E, D;
output Q = !E ? D : Q;
endmodule
module \$_DLATCH_P_ (E, D, Q);
wire [1023:0] _TECHMAP_DO_ = "simplemap; opt";
input E, D;
output Q = E ? D : Q;
endmodule
module \$_DLATCH_NN0_ (input D, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("LATCH"), .REGSET(1'b0), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(E) ,.ce(1'b1), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DLATCH_NN1_ (input D, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("LATCH"), .REGSET(1'b1), .SRMUX("INV"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(E), .ce(1'b1), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DLATCH_NP0_ (input D, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("LATCH"), .REGSET(1'b0), .SRMUX("SR"), .SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(E), .ce(1'b1), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module \$_DLATCH_NP1_ (input D, R, E, output Q); AL_MAP_SEQ #(.DFFMODE("LATCH"), .REGSET(1'b1), .SRMUX("SR"), . SRMODE("ASYNC")) _TECHMAP_REPLACE_ (.d(D), .q(Q), .clk(E), .ce(1'b1), .sr(R)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
`ifndef NO_LUT
module \$lut (A, Y);

45
techlibs/anlogic/cells_sim.v
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@ -10,9 +10,6 @@ module AL_MAP_SEQ (
parameter SRMUX = "SR"; //SR/INV
parameter SRMODE = "SYNC"; //SYNC/ASYNC
wire clk_ce;
assign clk_ce = ce ? clk : 1'b0;
wire srmux;
generate
case (SRMUX)
@ -20,7 +17,7 @@ module AL_MAP_SEQ (
"INV": assign srmux = ~sr;
default: assign srmux = sr;
endcase
endgenerate
endgenerate
wire regset;
generate
@ -34,43 +31,45 @@ module AL_MAP_SEQ (
initial q = regset;
generate
if (DFFMODE == "FF")
if (DFFMODE == "FF")
begin
if (SRMODE == "ASYNC")
if (SRMODE == "ASYNC")
begin
always @(posedge clk_ce, posedge srmux)
always @(posedge clk, posedge srmux)
if (srmux)
q <= regset;
else
q <= d;
end
else if (ce)
q <= d;
end
else
begin
always @(posedge clk_ce)
always @(posedge clk)
if (srmux)
q <= regset;
else
q <= d;
else if (ce)
q <= d;
end
end
else
begin
// DFFMODE == "LATCH"
if (SRMODE == "ASYNC")
if (SRMODE == "ASYNC")
begin
always @(clk_ce, srmux)
always @*
if (srmux)
q <= regset;
else
q <= d;
end
else if (~clk & ce)
q <= d;
end
else
begin
always @(clk_ce)
if (srmux)
q <= regset;
else
q <= d;
always @*
if (~clk) begin
if (srmux)
q <= regset;
else if (ce)
q <= d;
end
end
end
endgenerate

2
techlibs/anlogic/synth_anlogic.cc
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@ -182,8 +182,8 @@ struct SynthAnlogicPass : public ScriptPass
if (check_label("map_ffs"))
{
run("dfflegalize -cell $_DFFE_P??P_ r -cell $_SDFFE_P??P_ r -cell $_DLATCH_N??_ r");
run("techmap -D NO_LUT -map +/anlogic/cells_map.v");
run("dffinit -strinit SET RESET -ff AL_MAP_SEQ q REGSET -noreinit");
run("opt_expr -mux_undef");
run("simplemap");
}

26
tests/arch/anlogic/latches.ys
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@ -3,31 +3,33 @@ design -save read
hierarchy -top latchp
proc
# Can't run any sort of equivalence check because latches are blown to LUTs
synth_anlogic
equiv_opt -assert -multiclock -map +/anlogic/cells_sim.v synth_anlogic
design -load postopt
cd latchp # Constrain all select calls below inside the top module
select -assert-count 1 t:AL_MAP_LUT3
select -assert-none t:AL_MAP_LUT3 %% t:* %D
select -assert-count 1 t:AL_MAP_SEQ
select -assert-count 1 t:AL_MAP_LUT1
select -assert-none t:AL_MAP_SEQ t:AL_MAP_LUT1 %% t:* %D
design -load read
hierarchy -top latchn
proc
# Can't run any sort of equivalence check because latches are blown to LUTs
synth_anlogic
equiv_opt -assert -multiclock -map +/anlogic/cells_sim.v synth_anlogic
design -load postopt
cd latchn # Constrain all select calls below inside the top module
select -assert-count 1 t:AL_MAP_LUT3
select -assert-none t:AL_MAP_LUT3 %% t:* %D
select -assert-count 1 t:AL_MAP_SEQ
select -assert-none t:AL_MAP_SEQ %% t:* %D
design -load read
hierarchy -top latchsr
proc
# Can't run any sort of equivalence check because latches are blown to LUTs
synth_anlogic
equiv_opt -assert -multiclock -map +/anlogic/cells_sim.v synth_anlogic
design -load postopt
cd latchsr # Constrain all select calls below inside the top module
select -assert-count 1 t:AL_MAP_LUT5
select -assert-none t:AL_MAP_LUT5 %% t:* %D
select -assert-count 1 t:AL_MAP_SEQ
select -assert-count 2 t:AL_MAP_LUT3
select -assert-none t:AL_MAP_SEQ t:AL_MAP_LUT3 %% t:* %D