Add nan, snan and inf float constants

Thomas Preud'homme committed 16 years ago

Commit 8eb86ab1 parent 22204672 files · +32 −2Browse files

Unified · Split

2 files

@@ -310,6 +310,16 @@ static void vpushll(long long v) · 309 unmodified lines
310	310	vsetc(&ctype, VT_CONST, &cval);
311	311	}
312	312
	313	+/* push arbitrary 64bit constant */
	314	+void vpush64(int ty, unsigned long long v)
	315	+{
	316	+ CValue cval;
	317	+ CType ctype;
	318	+ ctype.t = ty;
	319	+ cval.ull = v;
	320	+ vsetc(&ctype, VT_CONST, &cval);
	321	+}
	322	+
313	323	/* Return a static symbol pointing to a section */
314	324	ST_FUNC Sym get_sym_ref(CType type, Section *sec, unsigned long offset, unsigned long size)
315	325	{
@@ -3535,6 +3545,21 @@ ST_FUNC void unary(void) · 3219 unmodified lines
3535	3545	vtop->sym = s;
3536	3546	next();
3537	3547	break;
	3548	+
	3549	+ // special qnan , snan and infinity values
	3550	+ case TOK___NAN__:
	3551	+ vpush64(VT_DOUBLE, 0x7ff8000000000000);
	3552	+ next();
	3553	+ break;
	3554	+ case TOK___SNAN__:
	3555	+ vpush64(VT_DOUBLE, 0x7ff0000000000001);
	3556	+ next();
	3557	+ break;
	3558	+ case TOK___INF__:
	3559	+ vpush64(VT_DOUBLE, 0x7ff0000000000000);
	3560	+ next();
	3561	+ break;
	3562	+
3538	3563	default:
3539	3564	tok_identifier:
3540	3565	t = tok;

@@ -81,10 +81,15 @@ · 80 unmodified lines
81	81	DEF(TOK___TIME__, "__TIME__")
82	82	DEF(TOK___FUNCTION__, "__FUNCTION__")
83	83	DEF(TOK___VA_ARGS__, "__VA_ARGS__")
84		−
	84	+
85	85	/* special identifiers */
86	86	DEF(TOK___FUNC__, "__func__")
87		−
	87	+
	88	+/* special floating point values */
	89	+ DEF(TOK___NAN__, "__nan__")
	90	+ DEF(TOK___SNAN__, "__snan__")
	91	+ DEF(TOK___INF__, "__inf__")
	92	+
88	93	/* attribute identifiers */
89	94	/* XXX: handle all tokens generically since speed is not critical */
90	95	DEF(TOK_SECTION1, "section")

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