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Progress in pmgen, add pmgen README

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2019-01-14 13:29:27 +01:00
parent 55ac030382
commit 5216735210
3 changed files with 260 additions and 14 deletions
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46
passes/pmgen/pmgen.py
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@ -9,6 +9,7 @@ pp = pprint.PrettyPrinter(indent=4)
prefix = sys.argv[1]
state_types = dict()
udata_types = dict()
blocks = list()
ids = dict()
@ -92,6 +93,16 @@ with open("%s.pmg" % prefix, "r") as f:
state_types[s] = type_str
continue
if cmd == "udata":
m = re.match(r"^udata\s+<(.*?)>\s+(([A-Za-z_][A-Za-z_0-9]*\s+)*[A-Za-z_][A-Za-z_0-9]*)\s*$", line)
assert m
type_str = m.group(1)
udatas_str = m.group(2)
for s in re.split(r"\s+", udatas_str):
assert s not in udata_types
udata_types[s] = type_str
continue
if cmd == "match":
block = dict()
block["type"] = "match"
@ -196,12 +207,17 @@ with open("%s_pm.h" % prefix, "w") as f:
print("", file=f)
print(" struct state_t {", file=f)
for s, t in sorted(state_types.items()):
print(" {} {};".format(t, s), file=f)
print(" } st;", file=f)
print("", file=f)
print(" struct udata_t {", file=f)
for s, t in sorted(udata_types.items()):
print(" {} {};".format(t, s), file=f)
print(" } ud;", file=f)
print("", file=f)
for v, n in sorted(ids.items()):
if n[0] == "\\":
print(" IdString {}{{\"\\{}\"}};".format(v, n), file=f)
@ -258,7 +274,12 @@ with open("%s_pm.h" % prefix, "w") as f:
print(" {}_pm(Module *module, const vector<Cell*> &cells) :".format(prefix), file=f)
print(" module(module), sigmap(module) {", file=f)
print(" for (auto cell : cells) {", file=f)
for s, t in sorted(udata_types.items()):
if t.endswith("*"):
print(" ud.{} = nullptr;".format(s), file=f)
else:
print(" ud.{} = {}();".format(s, t), file=f)
print(" for (auto cell : module->cells()) {", file=f)
print(" for (auto &conn : cell->connections())", file=f)
print(" add_siguser(conn.second, cell);", file=f)
print(" }", file=f)
@ -281,7 +302,7 @@ with open("%s_pm.h" % prefix, "w") as f:
print(" }", file=f)
print("", file=f)
print(" void match(std::function<void()> on_accept_f) {{".format(prefix), file=f)
print(" void run(std::function<void()> on_accept_f) {{".format(prefix), file=f)
print(" on_accept = on_accept_f;", file=f)
print(" rollback = 0;", file=f)
for s, t in sorted(state_types.items()):
@ -293,10 +314,6 @@ with open("%s_pm.h" % prefix, "w") as f:
print(" }", file=f)
print("", file=f)
print("#define reject do { check_blacklist(); goto rollback_label; } while(0)", file=f)
print("#define accept do { on_accept(); check_blacklist(); if (rollback) goto rollback_label; } while(0)", file=f)
print("", file=f)
for index in range(len(blocks)):
block = blocks[index]
@ -348,13 +365,22 @@ with open("%s_pm.h" % prefix, "w") as f:
if block["type"] == "code":
print("", file=f)
print(" do {", file=f)
print("#define reject do { check_blacklist(); goto rollback_label; } while(0)", file=f)
print("#define accept do { on_accept(); check_blacklist(); if (rollback) goto rollback_label; } while(0)", file=f)
print("#define branch do {{ block_{}(); }} while(0)".format(index+1), file=f)
for line in block["code"]:
print(" " + line, file=f)
print("", file=f)
print(" block_{}();".format(index+1), file=f)
print("rollback_label: YS_ATTRIBUTE(unused);", file=f)
print("#undef reject", file=f)
print("#undef accept", file=f)
print("#undef branch", file=f)
print(" } while (0);", file=f)
print("", file=f)
print("rollback_label:", file=f)
print(" YS_ATTRIBUTE(unused);", file=f)
if len(restore_st) or len(nonconst_st):
print("", file=f)
@ -415,10 +441,6 @@ with open("%s_pm.h" % prefix, "w") as f:
print(" }", file=f)
print("", file=f)
print("#undef reject", file=f)
print("#undef accept", file=f)
print("", file=f)
print(" void block_{}() {{".format(len(blocks)), file=f)
print(" on_accept();", file=f)
print(" check_blacklist();", file=f)