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added __builtin_constant_p() and __builtin_types_compatible_p() support

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This commit is contained in:
bellard 2003-04-26 21:28:09 +00:00
parent 60efcfe27c
commit 7828683e60
2 changed files with 46 additions and 4 deletions
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48
tcc.c
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@ -6593,6 +6593,17 @@ static void parse_expr_type(CType *type)
skip(')');
}
static void parse_type(CType *type)
{
AttributeDef ad;
int n;
if (!parse_btype(type, &ad)) {
expect("type");
}
type_decl(type, &ad, &n, TYPE_ABSTRACT);
}
static void vpush_tokc(int t)
{
CType type;
@ -6777,7 +6788,36 @@ static void unary(void)
vpushi(align);
}
break;
case TOK_builtin_types_compatible_p:
{
CType type1, type2;
next();
skip('(');
parse_type(&type1);
skip(',');
parse_type(&type2);
skip(')');
type1.t &= ~(VT_CONSTANT | VT_VOLATILE);
type2.t &= ~(VT_CONSTANT | VT_VOLATILE);
vpushi(is_compatible_types(&type1, &type2));
}
break;
case TOK_builtin_constant_p:
{
int saved_nocode_wanted, res;
next();
skip('(');
saved_nocode_wanted = nocode_wanted;
nocode_wanted = 1;
gexpr();
res = (vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST;
vpop();
nocode_wanted = saved_nocode_wanted;
skip(')');
vpushi(res);
}
break;
case TOK_INC:
case TOK_DEC:
t = tok;
@ -7274,14 +7314,14 @@ static void gexpr(void)
/* parse an expression and return its type without any side effect. */
static void expr_type(CType *type)
{
int a;
int saved_nocode_wanted;
a = nocode_wanted;
saved_nocode_wanted = nocode_wanted;
nocode_wanted = 1;
gexpr();
*type = vtop->type;
vpop();
nocode_wanted = a;
nocode_wanted = saved_nocode_wanted;
}
/* parse a unary expression and return its type without any side

2
tcctok.h
View File

@ -100,6 +100,8 @@
DEF(TOK_STDCALL3, "__stdcall__")
DEF(TOK_NORETURN1, "noreturn")
DEF(TOK_NORETURN2, "__noreturn__")
DEF(TOK_builtin_types_compatible_p, "__builtin_types_compatible_p")
DEF(TOK_builtin_constant_p, "__builtin_constant_p")
/* builtin functions or variables */
DEF(TOK_memcpy, "memcpy")