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Merge branch 'master' into xc7dsp

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This commit is contained in:
David Shah 2019-08-30 13:57:15 +01:00
commit 6919c0f9b0
190 changed files with 8815 additions and 4357 deletions
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83
techlibs/xilinx/synth_xilinx.cc
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@ -63,14 +63,17 @@ struct SynthXilinxPass : public ScriptPass
log(" generate an output netlist (and BLIF file) suitable for VPR\n");
log(" (this feature is experimental and incomplete)\n");
log("\n");
log(" -nobram\n");
log(" disable inference of block rams\n");
log(" -ise\n");
log(" generate an output netlist suitable for ISE (enables -iopad)\n");
log("\n");
log(" -nodram\n");
log(" disable inference of distributed rams\n");
log(" -nobram\n");
log(" do not use block RAM cells in output netlist\n");
log("\n");
log(" -nolutram\n");
log(" do not use distributed RAM cells in output netlist\n");
log("\n");
log(" -nosrl\n");
log(" disable inference of shift registers\n");
log(" do not use distributed SRL cells in output netlist\n");
log("\n");
log(" -nocarry\n");
log(" do not use XORCY/MUXCY/CARRY4 cells in output netlist\n");
@ -80,6 +83,14 @@ struct SynthXilinxPass : public ScriptPass
log("\n");
log(" -nodsp\n");
log(" do not use DSP48E1s to implement multipliers and associated logic\n");
log(" -iopad\n");
log(" enable I/O buffer insertion (selected automatically by -ise)\n");
log("\n");
log(" -noiopad\n");
log(" disable I/O buffer insertion (only useful with -ise)\n");
log("\n");
log(" -noclkbuf\n");
log(" disable automatic clock buffer insertion\n");
log("\n");
log(" -widemux <int>\n");
log(" enable inference of hard multiplexer resources (MUXF[78]) for muxes at or\n");
@ -108,6 +119,8 @@ struct SynthXilinxPass : public ScriptPass
std::string top_opt, edif_file, blif_file, family;
bool flatten, retime, vpr, nobram, nodram, nosrl, nocarry, nowidelut, nodsp, abc9;
bool flatten, retime, vpr, ise, iopad, noiopad, noclkbuf, nobram, nolutram, nosrl, nocarry, nowidelut, nodsp, abc9;
bool flatten_before_abc;
int widemux;
void clear_flags() YS_OVERRIDE
@ -119,14 +132,19 @@ struct SynthXilinxPass : public ScriptPass
flatten = false;
retime = false;
vpr = false;
ise = false;
iopad = false;
noiopad = false;
noclkbuf = false;
nocarry = false;
nobram = false;
nodram = false;
nolutram = false;
nosrl = false;
nocarry = false;
nowidelut = false;
nodsp = false;
abc9 = false;
flatten_before_abc = false;
widemux = 0;
}
@ -166,6 +184,10 @@ struct SynthXilinxPass : public ScriptPass
flatten = true;
continue;
}
if (args[argidx] == "-flatten_before_abc") {
flatten_before_abc = true;
continue;
}
if (args[argidx] == "-retime") {
retime = true;
continue;
@ -182,6 +204,22 @@ struct SynthXilinxPass : public ScriptPass
vpr = true;
continue;
}
if (args[argidx] == "-ise") {
ise = true;
continue;
}
if (args[argidx] == "-iopad") {
iopad = true;
continue;
}
if (args[argidx] == "-noiopad") {
noiopad = true;
continue;
}
if (args[argidx] == "-noclkbuf") {
noclkbuf = true;
continue;
}
if (args[argidx] == "-nocarry") {
nocarry = true;
continue;
@ -190,8 +228,8 @@ struct SynthXilinxPass : public ScriptPass
nobram = true;
continue;
}
if (args[argidx] == "-nodram") {
nodram = true;
if (args[argidx] == "-nolutram" || /*deprecated alias*/ args[argidx] == "-nodram") {
nolutram = true;
continue;
}
if (args[argidx] == "-nosrl") {
@ -306,7 +344,7 @@ struct SynthXilinxPass : public ScriptPass
run("opt_clean");
}
if (check_label("bram", "(skip if '-nobram')")) {
if (check_label("map_bram", "(skip if '-nobram')")) {
if (help_mode) {
run("memory_bram -rules +/xilinx/{family}_brams.txt");
run("techmap -map +/xilinx/{family}_brams_map.v");
@ -323,20 +361,23 @@ struct SynthXilinxPass : public ScriptPass
}
}
if (check_label("dram", "(skip if '-nodram')")) {
if (!nodram || help_mode) {
run("memory_bram -rules +/xilinx/drams.txt");
run("techmap -map +/xilinx/drams_map.v");
if (check_label("map_lutram", "(skip if '-nolutram')")) {
if (!nolutram || help_mode) {
run("memory_bram -rules +/xilinx/lutrams.txt");
run("techmap -map +/xilinx/lutrams_map.v");
}
}
if (check_label("fine")) {
if (check_label("map_ffram")) {
if (widemux > 0)
run("opt -fast -mux_bool -undriven -fine"); // Necessary to omit -mux_undef otherwise muxcover
// performs less efficiently
else
run("opt -fast -full");
run("memory_map");
}
if (check_label("fine")) {
run("dffsr2dff");
run("dff2dffe");
if (help_mode) {
@ -404,6 +445,8 @@ struct SynthXilinxPass : public ScriptPass
if (check_label("map_luts")) {
run("opt_expr -mux_undef");
if (flatten_before_abc)
run("flatten");
if (help_mode)
run("abc -luts 2:2,3,6:5[,10,20] [-dff]", "(option for 'nowidelut', option for '-retime')");
else if (abc9) {
@ -432,6 +475,18 @@ struct SynthXilinxPass : public ScriptPass
run("clean");
}
if (check_label("finalize")) {
bool do_iopad = iopad || (ise && !noiopad);
if (help_mode || !noclkbuf) {
if (help_mode || do_iopad)
run("clkbufmap -buf BUFG O:I -inpad IBUFG O:I", "(skip if '-noclkbuf', '-inpad' passed if '-iopad' or '-ise' and not '-noiopad')");
else
run("clkbufmap -buf BUFG O:I");
}
if (do_iopad)
run("iopadmap -bits -outpad OBUF I:O -inpad IBUF O:I A:top", "(only if '-iopad' or '-ise' and not '-noiopad')");
}
if (check_label("check")) {
run("hierarchy -check");
run("stat -tech xilinx");