X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fstat%2Fconst_stat.c;h=ffa88a32b10a113d61e0648404d0d734e0a7bf99;hb=f6aeac6a547a52beb3cb663c5e63c05c9c3728ea;hp=4fd5b200b6d70c72388ee4cbef9b7305631bad49;hpb=602a065664be1be0038b551da457ce228207a80b;p=libfirm

diff --git a/ir/stat/const_stat.c b/ir/stat/const_stat.c
index 4fd5b200b..ffa88a32b 100644
--- a/ir/stat/const_stat.c
+++ b/ir/stat/const_stat.c
@@ -69,16 +69,18 @@ static float_classify_t classify_float_value(tarval *tv) {
 	ir_mode *mode = get_tarval_mode(tv);
 
 	if (tv == get_mode_null(mode))
-		return STAT_FC_1;
+		return STAT_FC_0;
 	else if (tv == get_mode_one(mode))
 		return STAT_FC_1;
-	else if (tarval_ieee754_zero_mantissa(tv)) {
+	else if (tarval_is_finite(tv) && tarval_ieee754_zero_mantissa(tv)) {
 		int exp = tarval_ieee754_get_exponent(tv);
 
-		if (exp == 1)
-			return STAT_FC_2;
-		else if (exp == -1)
-			return STAT_FC_0_5;
+		if (! tarval_is_negative(tv)) {
+			if (exp == 1)
+				return STAT_FC_2;
+			else if (exp == -1)
+				return STAT_FC_0_5;
+		}
 		return STAT_FC_POWER_OF_TWO;
 	}
 	return STAT_FC_OTHER;