Sort of keep track of registers and register classes. Start walking the
generated instruction tree --- holy cow, they look like instructions!
This commit is contained in:
David Given
parent
bde5792b1a
commit
39aa672422
|
|
@ -35,6 +35,7 @@ struct ir
|
|||
} u;
|
||||
|
||||
void* state_label; /* used by the iburg instruction selector */
|
||||
int insn_no;
|
||||
|
||||
bool is_sequence : 1;
|
||||
bool is_generated : 1;
|
||||
|
|
|
|||
|
|
@ -7,7 +7,10 @@
|
|||
static int OP_LABEL(struct ir* ir)
|
||||
{
|
||||
if (ir->is_generated)
|
||||
{
|
||||
assert(ir->is_sequence);
|
||||
return ir_to_esn(IR_REG, ir->size);
|
||||
}
|
||||
return ir_to_esn(ir->opcode, ir->size);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -38,25 +38,75 @@ void burm_panic_cannot_match(struct ir* ir)
|
|||
exit(1);
|
||||
}
|
||||
|
||||
static void queue_instructions(struct ir* ir, int goal)
|
||||
static const struct burm_emitter_data emitter_data;
|
||||
|
||||
static void emit_string(const char* data)
|
||||
{
|
||||
tracef('I', "I: emit: %s\n", data);
|
||||
}
|
||||
|
||||
static void emit_reg(struct ir* ir)
|
||||
{
|
||||
const struct burm_instruction_data* insndata = &burm_instruction_data[ir->insn_no];
|
||||
if (insndata->is_fragment)
|
||||
insndata->emitter(ir, &emitter_data);
|
||||
else
|
||||
tracef('I', "I: emit reg $%d\n", ir->id);
|
||||
}
|
||||
|
||||
static void emit_value(struct ir* ir)
|
||||
{
|
||||
tracef('I', "I: emit value\n");
|
||||
}
|
||||
|
||||
static void emit_resultreg(void)
|
||||
{
|
||||
tracef('I', "I: emit resultreg\n");
|
||||
}
|
||||
|
||||
static void emit_eoi(void)
|
||||
{
|
||||
tracef('I', "I: emit eoi\n");
|
||||
}
|
||||
|
||||
static const struct burm_emitter_data emitter_data =
|
||||
{
|
||||
&emit_string,
|
||||
&emit_reg,
|
||||
&emit_value,
|
||||
&emit_resultreg,
|
||||
&emit_eoi
|
||||
};
|
||||
|
||||
static void walk_instructions(struct ir* ir, int goal)
|
||||
{
|
||||
struct ir* children[10];
|
||||
int ruleno = burm_rule(ir->state_label, goal);
|
||||
const struct burm_instruction_data* insndata = &burm_instruction_data[ruleno];
|
||||
const short* nts = burm_nts[ruleno];
|
||||
int insn_no = burm_rule(ir->state_label, goal);
|
||||
const struct burm_instruction_data* insndata = &burm_instruction_data[insn_no];
|
||||
const short* nts = burm_nts[insn_no];
|
||||
int i;
|
||||
|
||||
burm_kids(ir, ruleno, children);
|
||||
for (i=0; nts[i]; i++)
|
||||
queue_instructions(children[i], nts[i]);
|
||||
ir->insn_no = insn_no;
|
||||
|
||||
tracef('I', "I: $%d selected %s %d: %s\n",
|
||||
burm_kids(ir, insn_no, children);
|
||||
for (i=0; nts[i]; i++)
|
||||
walk_instructions(children[i], nts[i]);
|
||||
|
||||
tracef('I', "I: $%d %s selected %s %d: %s\n",
|
||||
ir->id,
|
||||
ir->is_sequence ? "S" : " ",
|
||||
insndata->is_fragment ? "fragment" : "instruction",
|
||||
ruleno,
|
||||
insn_no,
|
||||
insndata->name);
|
||||
ir->is_generated = true;
|
||||
|
||||
if (insndata->allocate)
|
||||
tracef('I', "I: allocate reg of class %d\n", insndata->allocate);
|
||||
if (!insndata->is_fragment && insndata->emitter)
|
||||
insndata->emitter(ir, &emitter_data);
|
||||
}
|
||||
|
||||
|
||||
static void select_instructions(struct basicblock* bb)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -73,7 +123,7 @@ static void select_instructions(struct basicblock* bb)
|
|||
if (!insnno)
|
||||
burm_panic_cannot_match(ir);
|
||||
|
||||
queue_instructions(ir, 1);
|
||||
walk_instructions(ir, 1);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -86,7 +136,6 @@ void pass_instruction_selector(struct procedure* proc)
|
|||
struct basicblock* bb = proc->blocks[i];
|
||||
select_instructions(bb);
|
||||
}
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* vim: set sw=4 ts=4 expandtab : */
|
||||
|
|
|
|||
|
|
@ -1,9 +1,35 @@
|
|||
REGISTERS
|
||||
|
||||
r0 GPR RET0;
|
||||
r1 GPR RET1;
|
||||
r2 GPR;
|
||||
r3 GPR;
|
||||
r4 GPR;
|
||||
r5 GPR;
|
||||
r6 GPR;
|
||||
r7 GPR;
|
||||
r8 GPR;
|
||||
r9 GPR;
|
||||
r10 GPR;
|
||||
r11 GPR;
|
||||
|
||||
cc CC;
|
||||
|
||||
DECLARATIONS
|
||||
|
||||
address fragment;
|
||||
aluparam fragment;
|
||||
reg allocates(GPR);
|
||||
tristate allocates(CC);
|
||||
|
||||
PATTERNS
|
||||
|
||||
/* Special */
|
||||
|
||||
reg;
|
||||
|
||||
reg = REG4;
|
||||
|
||||
PAIR(BLOCK4, BLOCK4);
|
||||
|
||||
|
||||
|
|
@ -25,6 +51,7 @@ PATTERNS
|
|||
emit "mov r0, %in"
|
||||
cost 4;
|
||||
|
||||
|
||||
/* Memory operations */
|
||||
|
||||
STORE4(addr:address, value:reg)
|
||||
|
|
@ -55,16 +82,16 @@ PATTERNS
|
|||
cost 4;
|
||||
|
||||
address = in:LOCAL4
|
||||
fragment "[fp, #$in]";
|
||||
emit "[fp, #$in]";
|
||||
|
||||
|
||||
/* Memory addressing modes */
|
||||
|
||||
address = ADD4(addr:reg, offset:CONST)
|
||||
fragment "[%addr, #$offset]";
|
||||
address = ADD4(addr:reg, offset:CONST4)
|
||||
emit "[%addr, #$offset]";
|
||||
|
||||
address = addr:reg
|
||||
fragment "[%addr]";
|
||||
emit "[%addr]";
|
||||
|
||||
|
||||
/* Branches */
|
||||
|
|
@ -82,7 +109,6 @@ PATTERNS
|
|||
/* Comparisons */
|
||||
|
||||
tristate = COMPARES4(left:reg, right:aluparam)
|
||||
outs CC
|
||||
emit "cmp %left, %right"
|
||||
cost 4;
|
||||
|
||||
|
|
@ -115,7 +141,7 @@ PATTERNS
|
|||
cost 4;
|
||||
|
||||
aluparam = value:CONST4
|
||||
fragment "#$value";
|
||||
emit "#$value";
|
||||
|
||||
aluparam = reg;
|
||||
|
||||
|
|
|
|||
|
|
@ -16,38 +16,78 @@ static int nextern = 1;
|
|||
%union {
|
||||
int n;
|
||||
char* string;
|
||||
Nonterm nonterm;
|
||||
Tree tree;
|
||||
Rule rule;
|
||||
struct reg* reg;
|
||||
struct stringlist* stringlist;
|
||||
char* stringpair[2];
|
||||
}
|
||||
%term TERMINAL
|
||||
%term START
|
||||
%term PPERCENT
|
||||
|
||||
%term PATTERNS
|
||||
%term WHEN
|
||||
%term ALLOCATES
|
||||
%term COST
|
||||
%term DECLARATIONS
|
||||
%term EMIT
|
||||
%term FRAGMENT
|
||||
%term COST
|
||||
%term INS
|
||||
%term OUTS
|
||||
%term PATTERNS
|
||||
%term REGISTERS
|
||||
%term WHEN
|
||||
|
||||
%token <n> INT
|
||||
%token <string> ID
|
||||
%token <string> CFRAGMENT
|
||||
%token <string> QFRAGMENT
|
||||
|
||||
%type <rule> pattern
|
||||
%type <nonterm> allocates
|
||||
%type <nonterm> declaration
|
||||
%type <reg> register
|
||||
%type <rule> emit
|
||||
%type <rule> pattern
|
||||
%type <stringlist> cfragments
|
||||
%type <stringlist> qfragments
|
||||
%type <tree> rhs
|
||||
%type <stringpair> labelledid
|
||||
%type <tree> rhs
|
||||
%%
|
||||
|
||||
spec
|
||||
: PATTERNS patterns
|
||||
: REGISTERS registers
|
||||
DECLARATIONS declarations
|
||||
PATTERNS patterns
|
||||
;
|
||||
|
||||
registers
|
||||
: /* nothing */
|
||||
| registers register ';'
|
||||
| register ';'
|
||||
;
|
||||
|
||||
register
|
||||
: ID { $$ = makereg($1); }
|
||||
| register ID { $$ = $1; addregclass($1, $2); }
|
||||
;
|
||||
|
||||
declarations
|
||||
: /* nothing */
|
||||
| declarations declaration ';'
|
||||
| declaration ';'
|
||||
;
|
||||
|
||||
declaration
|
||||
: ID { $$ = nonterm($1, true); }
|
||||
| declaration FRAGMENT { $$ = $1; $$->is_fragment = true; }
|
||||
| allocates { $$ = $1; }
|
||||
;
|
||||
|
||||
allocates
|
||||
: declaration ALLOCATES '(' ID ')'
|
||||
{
|
||||
$$ = $1;
|
||||
if ($$->allocate)
|
||||
yyerror("pattern type is defined to already allocate a register");
|
||||
$$->allocate = getregclass($4);
|
||||
}
|
||||
;
|
||||
|
||||
patterns
|
||||
|
|
@ -57,11 +97,9 @@ patterns
|
|||
;
|
||||
|
||||
pattern
|
||||
: ID '=' rhs { nonterm($1); $$ = rule($1, $3, nextern++); }
|
||||
: ID '=' rhs { nonterm($1, false); $$ = rule($1, $3, nextern++); }
|
||||
| rhs { $$ = rule("stmt", $1, nextern++); }
|
||||
| pattern WHEN cfragments { $$ = $1; stringlist_addall(&$$->when, $3); }
|
||||
| pattern INS ins { $$ = $1; }
|
||||
| pattern OUTS outs { $$ = $1; }
|
||||
| emit { $$ = $1; }
|
||||
| pattern COST INT { $$ = $1; $$->cost = $3; }
|
||||
;
|
||||
|
|
@ -82,36 +120,12 @@ cfragments
|
|||
| cfragments CFRAGMENT { $$ = $1; stringlist_add($$, $2); }
|
||||
;
|
||||
|
||||
ins
|
||||
: ins ',' in
|
||||
| in
|
||||
;
|
||||
|
||||
in
|
||||
: ID ':' ID
|
||||
;
|
||||
|
||||
outs
|
||||
: outs ',' out
|
||||
| out
|
||||
;
|
||||
|
||||
out
|
||||
: ID
|
||||
| ID ':' ID
|
||||
;
|
||||
|
||||
emit
|
||||
: pattern EMIT qfragments {
|
||||
$$ = $1;
|
||||
if (!$$->lhs->is_fragment)
|
||||
stringlist_add($3, "\n");
|
||||
stringlist_addall(&$$->code, $3);
|
||||
$$->is_fragment = false;
|
||||
}
|
||||
| pattern FRAGMENT qfragments {
|
||||
$$ = $1;
|
||||
stringlist_addall(&$$->code, $3);
|
||||
$$->is_fragment = true;
|
||||
}
|
||||
;
|
||||
|
||||
|
|
|
|||
|
|
@ -20,6 +20,8 @@ static char* prefix = "burm";
|
|||
static int Tflag = 1; /* tracing */
|
||||
static int ntnumber = 0;
|
||||
static Nonterm start = 0;
|
||||
static struct reg* regs = NULL;
|
||||
static struct regclass* regclasses = NULL;
|
||||
static Term terms;
|
||||
static Nonterm nts;
|
||||
static Rule rules;
|
||||
|
|
@ -34,14 +36,16 @@ static void emitcostcalc(Rule r);
|
|||
static void emitdefs(Nonterm nts, int ntnumber);
|
||||
static void emitfuncs(void);
|
||||
static void emitheader(void);
|
||||
static void emitinsndata(Rule rules);
|
||||
static void emitkids(Rule rules, int nrules);
|
||||
static void emitlabel(Nonterm start);
|
||||
static void emitleaf(Term p, int ntnumber);
|
||||
static void emitnts(Rule rules, int nrules);
|
||||
static void emitrecord(char* pre, Rule r, int cost);
|
||||
static void emitrule(Nonterm nts);
|
||||
static void emitpredicatedefinitions(Rule rules);
|
||||
static void emitinsndata(Rule rules);
|
||||
static void emitrecord(char* pre, Rule r, int cost);
|
||||
static void emitregisterclasses(struct regclass* rc);
|
||||
static void emitregisters(struct reg* regs);
|
||||
static void emitrule(Nonterm nts);
|
||||
static void emitstate(Term terms, Nonterm start, int ntnumber);
|
||||
static void emitstring(Rule rules);
|
||||
static void emitstruct(Nonterm nts, int ntnumber);
|
||||
|
|
@ -116,7 +120,7 @@ int main(int argc, char* argv[])
|
|||
emitheader();
|
||||
registerterminals();
|
||||
|
||||
start = nonterm("stmt");
|
||||
start = nonterm("stmt", true);
|
||||
|
||||
yyin = infp;
|
||||
yyparse();
|
||||
|
|
@ -127,6 +131,8 @@ int main(int argc, char* argv[])
|
|||
if (!p->reached)
|
||||
yyerror("can't reach non-terminal `%s'\n", p->name);
|
||||
|
||||
emitregisterclasses(regclasses);
|
||||
emitregisters(regs);
|
||||
emitdefs(nts, ntnumber);
|
||||
emitstruct(nts, ntnumber);
|
||||
emitnts(rules, nrules);
|
||||
|
|
@ -203,6 +209,8 @@ struct entry
|
|||
const char* name;
|
||||
struct term t;
|
||||
struct nonterm nt;
|
||||
struct reg r;
|
||||
struct regclass rc;
|
||||
} sym;
|
||||
struct entry* link;
|
||||
} * table[211];
|
||||
|
|
@ -219,7 +227,7 @@ static unsigned hash(const char* str)
|
|||
}
|
||||
|
||||
/* lookup - lookup symbol name */
|
||||
static void* lookup(const char* name)
|
||||
void* lookup(const char* name)
|
||||
{
|
||||
struct entry* p = table[hash(name) % HASHSIZE];
|
||||
|
||||
|
|
@ -241,15 +249,69 @@ static void* install(const char* name)
|
|||
return &p->sym;
|
||||
}
|
||||
|
||||
/* nonterm - create a new terminal id, if necessary */
|
||||
Nonterm nonterm(const char* id)
|
||||
struct reg* makereg(const char* id)
|
||||
{
|
||||
Nonterm p = lookup(id), * q = &nts;
|
||||
struct reg* p = lookup(id);
|
||||
struct reg** q = ®s;
|
||||
static int number = 1;
|
||||
|
||||
if (p)
|
||||
yyerror("redefinition of '%s'", id);
|
||||
p = install(id);
|
||||
p->kind = REG;
|
||||
p->number = number++;
|
||||
|
||||
while (*q && (*q)->number < p->number)
|
||||
q = &(*q)->link;
|
||||
assert(*q == 0 || (*q)->number != p->number);
|
||||
p->link = *q;
|
||||
*q = p;
|
||||
return p;
|
||||
}
|
||||
|
||||
void addregclass(struct reg* reg, const char* id)
|
||||
{
|
||||
struct regclass* p = lookup(id);
|
||||
struct regclass** q = ®classes;
|
||||
static int number = 1;
|
||||
|
||||
if (p && (p->kind != REGCLASS))
|
||||
yyerror("redefinition of '%s' as something else\n", id);
|
||||
if (!p)
|
||||
{
|
||||
p = install(id);
|
||||
p->kind = REGCLASS;
|
||||
p->number = number++;
|
||||
|
||||
while (*q && (*q)->number < p->number)
|
||||
q = &(*q)->link;
|
||||
assert(*q == 0 || (*q)->number != p->number);
|
||||
p->link = *q;
|
||||
*q = p;
|
||||
}
|
||||
}
|
||||
|
||||
struct regclass* getregclass(const char* id)
|
||||
{
|
||||
struct regclass* p = lookup(id);
|
||||
if (!p || (p->kind != REGCLASS))
|
||||
yyerror("'%p' is not the name of a register class");
|
||||
return p;
|
||||
}
|
||||
|
||||
/* nonterm - create a new terminal id, if necessary */
|
||||
Nonterm nonterm(const char* id, bool allocate)
|
||||
{
|
||||
Nonterm p = lookup(id);
|
||||
Nonterm* q = &nts;
|
||||
|
||||
if (p && p->kind == NONTERM)
|
||||
return p;
|
||||
if (p && p->kind == TERM)
|
||||
yyerror("`%s' is a terminal\n", id);
|
||||
if (p)
|
||||
yyerror("redefinition of '%s' as something else\n", id);
|
||||
if (!allocate)
|
||||
yyerror("'%s' has not been declared\n", id);
|
||||
|
||||
p = install(id);
|
||||
p->kind = NONTERM;
|
||||
p->number = ++ntnumber;
|
||||
|
|
@ -270,11 +332,8 @@ Term term(const char* id, int esn)
|
|||
Term* q = &terms;
|
||||
|
||||
if (p)
|
||||
{
|
||||
yyerror("redefinition of terminal `%s'\n", id);
|
||||
exit(1);
|
||||
}
|
||||
else
|
||||
yyerror("redefinition of '%s'\n", id);
|
||||
|
||||
p = install(id);
|
||||
p->kind = TERM;
|
||||
p->esn = esn;
|
||||
|
|
@ -309,7 +368,7 @@ Tree tree(const char* id, const char* label, Tree left, Tree right)
|
|||
p = term(id, -1);
|
||||
}
|
||||
else if (p == NULL && arity == 0)
|
||||
p = (Term)nonterm(id);
|
||||
p = (Term)nonterm(id, false);
|
||||
else if (p && p->kind == NONTERM && arity > 0)
|
||||
{
|
||||
yyerror("`%s' is a non-terminal\n", id);
|
||||
|
|
@ -338,7 +397,7 @@ Rule rule(char* id, Tree pattern, int ern)
|
|||
|
||||
nrules++;
|
||||
r->lineno = yylineno;
|
||||
r->lhs = nonterm(id);
|
||||
r->lhs = nonterm(id, false);
|
||||
r->packed = ++r->lhs->lhscount;
|
||||
for (q = &r->lhs->rules; *q; q = &(*q)->decode)
|
||||
;
|
||||
|
|
@ -452,6 +511,38 @@ static void ckreach(Nonterm p)
|
|||
reach(r->pattern);
|
||||
}
|
||||
|
||||
static void emitregisterclasses(struct regclass* rc)
|
||||
{
|
||||
int k = 0;
|
||||
print("const char* %Pregister_class_names[] = {\n");
|
||||
while (rc)
|
||||
{
|
||||
for (; k < rc->number; k++)
|
||||
print("%1NULL,\n");
|
||||
k++;
|
||||
|
||||
print("%1\"%s\",\n", rc->name);
|
||||
rc = rc->link;
|
||||
}
|
||||
print("};\n\n");
|
||||
}
|
||||
|
||||
static void emitregisters(struct reg* r)
|
||||
{
|
||||
int k = 0;
|
||||
print("const char* %Pregister_names[] = {\n");
|
||||
while (r)
|
||||
{
|
||||
for (; k < r->number; k++)
|
||||
print("%1NULL,\n");
|
||||
k++;
|
||||
|
||||
print("%1\"%s\",\n", r->name);
|
||||
r = r->link;
|
||||
}
|
||||
print("};\n\n");
|
||||
}
|
||||
|
||||
/* emitcase - emit one case in function state */
|
||||
static void emitcase(Term p, int ntnumber)
|
||||
{
|
||||
|
|
@ -841,6 +932,13 @@ static uint32_t find_label(Tree root, const char* name, uint32_t path)
|
|||
return p;
|
||||
}
|
||||
|
||||
static void label_not_found(Rule rule, const char* label)
|
||||
{
|
||||
yylineno = rule->lineno;
|
||||
yyerror("label '%s' not found", label);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* emitinsndata - emit the code generation data */
|
||||
static void emitinsndata(Rule rules)
|
||||
{
|
||||
|
|
@ -854,7 +952,7 @@ static void emitinsndata(Rule rules)
|
|||
if (f)
|
||||
{
|
||||
print("/* %R */\n", r);
|
||||
print("static void %Pemitter_%d(NODEPTR_TYPE node, struct %Pemitter_data* data) {\n", r->ern);
|
||||
print("static void %Pemitter_%d(NODEPTR_TYPE node, const struct %Pemitter_data* data) {\n", r->ern);
|
||||
|
||||
while (f)
|
||||
{
|
||||
|
|
@ -864,20 +962,28 @@ static void emitinsndata(Rule rules)
|
|||
{
|
||||
const char* label = f->data + 1;
|
||||
|
||||
print("%1data->emit_ir(");
|
||||
if (strcmp(label, r->lhs->name) == 0)
|
||||
print("node");
|
||||
print("%1data->emit_resultreg();\n");
|
||||
else
|
||||
{
|
||||
uint32_t path = find_label(r->pattern, label, 0);
|
||||
print("%1data->emit_reg(");
|
||||
if (path == PATH_MISSING)
|
||||
{
|
||||
yylineno = r->lineno;
|
||||
yyerror("label '%s' not found", label);
|
||||
exit(1);
|
||||
}
|
||||
label_not_found(r, label);
|
||||
print_path(path);
|
||||
print(");\n");
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case '$':
|
||||
{
|
||||
const char* label = f->data + 1;
|
||||
uint32_t path = find_label(r->pattern, label, 0);
|
||||
print("%1data->emit_value(");
|
||||
if (path == PATH_MISSING)
|
||||
label_not_found(r, label);
|
||||
print_path(path);
|
||||
print(");\n");
|
||||
break;
|
||||
}
|
||||
|
|
@ -919,7 +1025,12 @@ static void emitinsndata(Rule rules)
|
|||
else
|
||||
print("NULL,\n");
|
||||
|
||||
print("%2%s,\n", r->is_fragment ? "true" : "false");
|
||||
if (r->lhs->allocate)
|
||||
print("%2%d,\n", r->lhs->allocate->number);
|
||||
else
|
||||
print("%20,\n");
|
||||
|
||||
print("%2%s,\n", r->lhs->is_fragment ? "true" : "false");
|
||||
|
||||
print("%1},\n");
|
||||
r = r->link;
|
||||
|
|
|
|||
|
|
@ -8,10 +8,33 @@ extern char* stringf(char* fmt, ...);
|
|||
typedef enum
|
||||
{
|
||||
TERM = 1,
|
||||
NONTERM
|
||||
NONTERM,
|
||||
REG,
|
||||
REGCLASS
|
||||
} Kind;
|
||||
typedef struct rule* Rule;
|
||||
typedef struct term* Term;
|
||||
|
||||
struct reg
|
||||
{
|
||||
const char* name; /* register name */
|
||||
Kind kind; /* REG */
|
||||
int number; /* identifying number */
|
||||
struct reg* link; /* next in list */
|
||||
};
|
||||
|
||||
struct regclass
|
||||
{
|
||||
const char* name; /* class name */
|
||||
Kind kind; /* REGCLASS */
|
||||
int number; /* identifying number */
|
||||
struct regclass* link; /* next in list */
|
||||
};
|
||||
|
||||
extern struct reg* makereg(const char* name);
|
||||
extern void addregclass(struct reg* reg, const char* regclass);
|
||||
extern struct regclass* getregclass(const char* name);
|
||||
|
||||
struct term
|
||||
{ /* terminals: */
|
||||
char* name; /* terminal name */
|
||||
|
|
@ -33,8 +56,11 @@ struct nonterm
|
|||
Rule rules; /* rules w/non-terminal on lhs */
|
||||
Rule chain; /* chain rules w/non-terminal on rhs */
|
||||
Nonterm link; /* next terminal in number order */
|
||||
bool is_fragment; /* these instructions are all fragments */
|
||||
struct regclass* allocate; /* allocate this kind of register */
|
||||
};
|
||||
extern Nonterm nonterm(const char* id);
|
||||
extern void* lookup(const char* name);
|
||||
extern Nonterm nonterm(const char* id, bool allocate);
|
||||
extern Term term(const char* id, int esn);
|
||||
|
||||
typedef struct tree* Tree;
|
||||
|
|
@ -62,7 +88,6 @@ struct rule
|
|||
Rule kids; /* next rule with same burm_kids pattern */
|
||||
struct stringlist when; /* C predicate string */
|
||||
struct stringlist code; /* compiler output code strings */
|
||||
bool is_fragment; /* does this rule generate an instruction fragment? */
|
||||
};
|
||||
extern Rule rule(char* id, Tree pattern, int ern);
|
||||
extern int maxcost; /* maximum cost */
|
||||
|
|
|
|||
|
|
@ -26,18 +26,20 @@ extern void burm_trace(struct ir* p, int ruleno, int cost, int bestcost);
|
|||
|
||||
struct burm_emitter_data
|
||||
{
|
||||
void* user;
|
||||
void (*emit_string)(const char* data);
|
||||
void (*emit_ir)(struct ir* ir);
|
||||
void (*emit_reg)(struct ir* ir);
|
||||
void (*emit_value)(struct ir* ir);
|
||||
void (*emit_resultreg)(void);
|
||||
void (*emit_eoi)(void);
|
||||
};
|
||||
|
||||
typedef void burm_emitter_t(struct ir* ir, struct burm_emitter_data* data);
|
||||
typedef void burm_emitter_t(struct ir* ir, const struct burm_emitter_data* data);
|
||||
|
||||
struct burm_instruction_data
|
||||
{
|
||||
const char* name;
|
||||
burm_emitter_t* emitter;
|
||||
int allocate;
|
||||
bool is_fragment;
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -50,12 +50,12 @@ static int braces = 0;
|
|||
<INITIAL>"\"" BEGIN(QSTRING);
|
||||
<QSTRING>"\"" BEGIN(INITIAL);
|
||||
|
||||
<QSTRING>%[a-zA-Z_][a-zA_Z_0-9]+ {
|
||||
<QSTRING>[%$][a-zA-Z_][a-zA_Z_0-9]+ {
|
||||
yylval.string = strdup(yytext);
|
||||
return QFRAGMENT;
|
||||
}
|
||||
|
||||
<QSTRING>[^\r\n%"]+ {
|
||||
<QSTRING>[^\r\n%$"]+ {
|
||||
yylval.string = strdup(yytext);
|
||||
return QFRAGMENT;
|
||||
}
|
||||
|
|
@ -65,17 +65,16 @@ static int braces = 0;
|
|||
<COMMENT>[^*]* ;
|
||||
<COMMENT>"*" ;
|
||||
|
||||
"%%" return PPERCENT;
|
||||
"%term" return TERMINAL;
|
||||
"%start" return START;
|
||||
|
||||
"DECLARATIONS" return DECLARATIONS;
|
||||
"PATTERNS" return PATTERNS;
|
||||
"when" return WHEN;
|
||||
"ins" return INS;
|
||||
"outs" return OUTS;
|
||||
"REGISTERS" return REGISTERS;
|
||||
"allocates" return ALLOCATES;
|
||||
"cost" return COST;
|
||||
"emit" return EMIT;
|
||||
"fragment" return FRAGMENT;
|
||||
"cost" return COST;
|
||||
"ins" return INS;
|
||||
"outs" return OUTS;
|
||||
"when" return WHEN;
|
||||
|
||||
"//"[^\n]*\n ;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue