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mcgg now checks that registers have at most one type attribute set.

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This commit is contained in:
David Given 2018-09-03 22:03:57 +02:00
parent f8e71d888b
commit 83cf1be6a8
2 changed files with 26 additions and 2 deletions
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23
util/mcgg/iburg.c
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@ -16,7 +16,10 @@
#include "smap.h"
#include "mcgg.h"
static char rcsid[] = "$Id$";
#define REGATTR_INT 0
#define REGATTR_LONG 1
#define REGATTR_FLOAT 2
#define REGATTR_DOUBLE 3
int maxcost = SHRT_MAX / 2;
@ -162,6 +165,18 @@ int main(int argc, char* argv[])
rule(&reg, tree(&NOPL, tree(&reg, NULL, NULL), NULL))->cost = 1;
rule(&reg, tree(&NOPD, tree(&reg, NULL, NULL), NULL))->cost = 1;
rule(NULL, tree(&RET, NULL, NULL))->cost = 1;
}
{
struct regattr* attr = makeregattr("int");
assert(attr->number == REGATTR_INT);
attr = makeregattr("long");
assert(attr->number == REGATTR_LONG);
attr = makeregattr("float");
assert(attr->number == REGATTR_FLOAT);
attr = makeregattr("double");
assert(attr->number == REGATTR_DOUBLE);
}
yyin = infp;
@ -612,7 +627,8 @@ static void emitregisterattrs(void)
assert(rc->number == i);
print("%1\"%s\",\n", rc->name);
printh("#define %P%s_ATTR (1U<<%d)\n", rc->name, rc->number);
if (rc->number > REGATTR_DOUBLE)
printh("#define %P%s_ATTR (1U<<%d)\n", rc->name, rc->number);
}
print("};\n\n");
printh("\n");
@ -655,7 +671,10 @@ static void emitregisters(void)
for (i=0; i<registers.count; i++)
{
struct reg* r = registers.item[i].right;
uint32_t type = r->attrs & TYPE_ATTRS;
assert(r->number == i);
if (type & (type-1))
yyerror("register %s has more than one type attribute set", r->name);
print("%1{ \"%s\", 0x%x, %Pregister_names_%d_%s, %Pregister_aliases_%d_%s },\n",
r->name, r->attrs, i, r->name, i, r->name);

5
util/mcgg/ircodes.h
View file

@ -17,6 +17,11 @@ struct ir_data
extern const struct ir_data ir_data[];
#define burm_int_ATTR (1U<<0)
#define burm_long_ATTR (1U<<1)
#define burm_float_ATTR (1U<<2)
#define burm_double_ATTR (1U<<3)
#define TYPE_ATTRS \
(burm_int_ATTR | burm_long_ATTR | burm_float_ATTR | burm_double_ATTR)