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pmgen progress

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2019-04-30 10:51:51 +02:00
parent d2d402e625
commit 4306bebe58
4 changed files with 27 additions and 13 deletions
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3
passes/pmgen/ice40_dsp.cc
View file

@ -19,11 +19,12 @@
#include "kernel/yosys.h" #include "kernel/yosys.h"
#include "kernel/sigtools.h" #include "kernel/sigtools.h"
#include "passes/pmgen/ice40_dsp_pm.h"
USING_YOSYS_NAMESPACE USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN PRIVATE_NAMESPACE_BEGIN
#include "passes/pmgen/ice40_dsp_pm.h"
void create_ice40_dsp(ice40_dsp_pm &pm) void create_ice40_dsp(ice40_dsp_pm &pm)
{ {
auto &st = pm.st_ice40_dsp; auto &st = pm.st_ice40_dsp;

13
passes/pmgen/peepopt.cc
View file

@ -19,11 +19,14 @@
#include "kernel/yosys.h" #include "kernel/yosys.h"
#include "kernel/sigtools.h" #include "kernel/sigtools.h"
#include "passes/pmgen/peepopt_pm.h"
USING_YOSYS_NAMESPACE USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN PRIVATE_NAMESPACE_BEGIN
bool did_something;
#include "passes/pmgen/peepopt_pm.h"
struct PeepoptPass : public Pass { struct PeepoptPass : public Pass {
PeepoptPass() : Pass("peepopt", "collection of peephole optimizers") { } PeepoptPass() : Pass("peepopt", "collection of peephole optimizers") { }
void help() YS_OVERRIDE void help() YS_OVERRIDE
@ -51,8 +54,12 @@ struct PeepoptPass : public Pass {
extra_args(args, argidx, design); extra_args(args, argidx, design);
for (auto module : design->selected_modules()) { for (auto module : design->selected_modules()) {
peepopt_pm pm(module, module->selected_cells()); did_something = true;
pm.run_shiftmul(); while (did_something) {
did_something = false;
peepopt_pm pm(module, module->selected_cells());
pm.run_shiftmul();
}
} }
} }
} PeepoptPass; } PeepoptPass;

1
passes/pmgen/peepopt_shiftmul.pmg
View file

@ -45,6 +45,7 @@ code
if (GetSize(port(shift, \Y)) > const_factor) if (GetSize(port(shift, \Y)) > const_factor)
reject; reject;
did_something = true;
log("shiftmul pattern in %s: shift=%s, mul=%s\n", log_id(module), log_id(shift), log_id(mul)); log("shiftmul pattern in %s: shift=%s, mul=%s\n", log_id(module), log_id(shift), log_id(mul));
int new_const_factor_log2 = ceil_log2(const_factor); int new_const_factor_log2 = ceil_log2(const_factor);

23
passes/pmgen/pmgen.py
View file

@ -11,8 +11,9 @@ prefix = None
pmgfiles = list() pmgfiles = list()
outfile = None outfile = None
debug = False debug = False
genhdr = False
opts, args = getopt.getopt(sys.argv[1:], "p:o:d") opts, args = getopt.getopt(sys.argv[1:], "p:o:dg")
for o, a in opts: for o, a in opts:
if o == "-p": if o == "-p":
@ -21,6 +22,8 @@ for o, a in opts:
outfile = a outfile = a
elif o == "-d": elif o == "-d":
debug = True debug = True
elif o == "-g":
genhdr = True
if outfile is None: if outfile is None:
outfile = "/dev/stdout" outfile = "/dev/stdout"
@ -249,12 +252,12 @@ with open(outfile, "w") as f:
print("// Generated by pmgen.py from {}".format(fn), file=f) print("// Generated by pmgen.py from {}".format(fn), file=f)
print("", file=f) print("", file=f)
print("#include \"kernel/yosys.h\"", file=f) if genhdr:
print("#include \"kernel/sigtools.h\"", file=f) print("#include \"kernel/yosys.h\"", file=f)
print("", file=f) print("#include \"kernel/sigtools.h\"", file=f)
print("", file=f)
print("YOSYS_NAMESPACE_BEGIN", file=f) print("YOSYS_NAMESPACE_BEGIN", file=f)
print("", file=f) print("", file=f)
print("struct {}_pm {{".format(prefix), file=f) print("struct {}_pm {{".format(prefix), file=f)
print(" Module *module;", file=f) print(" Module *module;", file=f)
@ -564,5 +567,7 @@ with open(outfile, "w") as f:
print("", file=f) print("", file=f)
print("};", file=f) print("};", file=f)
print("", file=f)
print("YOSYS_NAMESPACE_END", file=f) if genhdr:
print("", file=f)
print("YOSYS_NAMESPACE_END", file=f)