From: Michael Beck <beck@ipd.info.uni-karlsruhe.de>
Date: Thu, 1 Nov 2007 14:49:38 +0000 (+0000)
Subject: clear the tarval buffer before fc_val_from_ieee754() fills bits in. There seems to... 
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=d87a2c02d382730f94119bb43389a4256615264c;p=libfirm

clear the tarval buffer before fc_val_from_ieee754() fills bits in. There seems to be uninitialized bytes ...

[r16407]
---

diff --git a/ir/tv/fltcalc.c b/ir/tv/fltcalc.c
index bed4dac97..431d573f1 100644
--- a/ir/tv/fltcalc.c
+++ b/ir/tv/fltcalc.c
@@ -1063,6 +1063,9 @@ fp_value *fc_val_from_ieee754(LLDBL l, char exp_size, char mant_size, fp_value *
 	if (result == NULL) result = calc_buffer;
 	temp = alloca(value_size);
 
+	/* CLEAR the buffer */
+	memset(result, 0, fc_get_buffer_length());
+
 	result->desc.exponent_size = exp_size;
 	result->desc.mantissa_size = mant_size;