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Merge remote-tracking branch 'origin/master' into eddie/abc9_refactor

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Eddie Hung 2020-01-13 09:22:42 -08:00
commit 9f3cb981d7
9 changed files with 418 additions and 90 deletions
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70
passes/techmap/abc9.cc
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@ -18,18 +18,69 @@
*
*/
// [[CITE]] ABC
// Berkeley Logic Synthesis and Verification Group, ABC: A System for Sequential Synthesis and Verification
// http://www.eecs.berkeley.edu/~alanmi/abc/
#include "kernel/register.h"
#include "kernel/celltypes.h"
#include "kernel/rtlil.h"
#include "kernel/log.h"
// abc9_exe.cc
std::string fold_abc9_cmd(std::string str);
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
struct Abc9Pass : public ScriptPass
{
Abc9Pass() : ScriptPass("abc9", "use ABC9 for technology mapping") { }
void on_register() YS_OVERRIDE
{
RTLIL::constpad["abc9.script.default"] = "+&scorr; &sweep; &dc2; &dch -f; &ps; &if {C} {W} {D} {R} -v; &mfs";
RTLIL::constpad["abc9.script.default.area"] = "+&scorr; &sweep; &dc2; &dch -f; &ps; &if {C} {W} {D} {R} -a -v; &mfs";
RTLIL::constpad["abc9.script.default.fast"] = "+&if {C} {W} {D} {R} -v";
// Based on ABC's &flow
RTLIL::constpad["abc9.script.flow"] = "+&scorr; &sweep;" \
"&dch -C 500;" \
/* Round 1 */ \
/* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
"&st; &dsdb;" \
/* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
"&st; &syn2 -m -R 10; &dsdb;" \
"&blut -a -K 6;" \
/* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
/* Round 2 */ \
"&st; &sopb;" \
/* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
"&st; &dsdb;" \
/* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
"&st; &syn2 -m -R 10; &dsdb;" \
"&blut -a -K 6;" \
/* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
/* Round 3 */ \
/* Map 1 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
"&st; &dsdb;" \
/* Map 2 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;" \
"&st; &syn2 -m -R 10; &dsdb;" \
"&blut -a -K 6;" \
/* Map 3 */ "&unmap; &if {C} {W} {D} {R} -v; &save; &load; &mfs;";
// Based on ABC's &flow2
RTLIL::constpad["abc9.script.flow2"] = "+&scorr; &sweep;" \
/* Comm1 */ "&synch2 -K 6 -C 500; &if -m {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save;"\
/* Comm2 */ "&dch -C 500; &if -m {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save;"\
"&load; &st; &sopb -R 10 -C 4; " \
/* Comm3 */ "&synch2 -K 6 -C 500; &if -m "/*"-E 5"*/" {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save;"\
/* Comm2 */ "&dch -C 500; &if -m {C} {W} {D} {R} -v; &mfs "/*"-W 4 -M 500 -C 7000"*/"; &save; "\
"&load";
// Based on ABC's &flow3
RTLIL::constpad["abc9.script.flow3"] = "+&scorr; &sweep;" \
"&if {C} {W} {D}; &save; &st; &syn2; &if {C} {W} {D} {R} -v; &save; &load;"\
"&st; &if {C} -g -K 6; &dch -f; &if {C} {W} {D} {R} -v; &save; &load;"\
"&st; &if {C} -g -K 6; &synch2; &if {C} {W} {D} {R} -v; &save; &load;"\
"&mfs";
}
void help() YS_OVERRIDE
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
@ -57,14 +108,12 @@ struct Abc9Pass : public ScriptPass
log(" replaced with blanks before the string is passed to ABC.\n");
log("\n");
log(" if no -script parameter is given, the following scripts are used:\n");
//FIXME:
//log("%s\n", fold_abc9_cmd(ABC_COMMAND_LUT).c_str());
log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default").substr(1,std::string::npos)).c_str());
log("\n");
log(" -fast\n");
log(" use different default scripts that are slightly faster (at the cost\n");
log(" of output quality):\n");
//FIXME:
//log("%s\n", fold_abc9_cmd(ABC_FAST_COMMAND_LUT).c_str());
log("%s\n", fold_abc9_cmd(RTLIL::constpad.at("abc9.script.default.fast").substr(1,std::string::npos)).c_str());
log("\n");
log(" -D <picoseconds>\n");
log(" set delay target. the string {D} in the default scripts above is\n");
@ -104,7 +153,7 @@ struct Abc9Pass : public ScriptPass
log(" command output is identical across runs.\n");
log("\n");
log(" -box <file>\n");
log(" pass this file with box library to ABC. Use with -lut.\n");
log(" pass this file with box library to ABC.\n");
log("\n");
log("Note that this is a logic optimization pass within Yosys that is calling ABC\n");
log("internally. This is not going to \"run ABC on your design\". It will instead run\n");
@ -139,6 +188,11 @@ struct Abc9Pass : public ScriptPass
dff_mode = design->scratchpad_get_bool("abc9.dff", dff_mode);
cleanup = !design->scratchpad_get_bool("abc9.nocleanup", !cleanup);
if (design->scratchpad_get_bool("abc9.debug")) {
cleanup = false;
exe_cmd << " -showtmp";
}
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) {
std::string arg = args[argidx];
@ -150,13 +204,13 @@ struct Abc9Pass : public ScriptPass
continue;
}
if (arg == "-fast" || /* arg == "-dff" || */
/* arg == "-nocleanup" || */ arg == "-showtmp" ||
arg == "-nomfs") {
/* arg == "-nocleanup" || */ arg == "-showtmp") {
exe_cmd << " " << arg;
continue;
}
if (arg == "-dff") {
dff_mode = true;
exe_cmd << " " << arg;
continue;
}
if (arg == "-nocleanup") {