tcg: Clear TCGLabelQemuLdst on allocation

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/tcg-ldst.c.inc

@@ -72,6 +72,7 @@ static inline TCGLabelQemuLdst *new_ldst_label(TCGContext *s)
 {
     TCGLabelQemuLdst *l = tcg_malloc(sizeof(*l));
 
+    memset(l, 0, sizeof(*l));
     QSIMPLEQ_INSERT_TAIL(&s->ldst_labels, l, next);
 
     return l;