Hi! Another version of the patch for the case 4. It looks like we need
to init vla_sp_loc on the start of VLA's handling in
decl_initializer().
diff -urN tinycc.old/tccgen.c tinycc/tccgen.c
--- tinycc.old/tccgen.c 2015-04-25 13:25:03.000000000 +0300
+++ tinycc/tccgen.c 2015-04-25 13:37:00.000000000 +0300
@@ -2222,6 +2222,13 @@
}
}
+static void vla_sp_save_prepare(void) {
+ if (!(vla_flags & VLA_SP_LOC_SET)) {
+ *vla_sp_loc = (loc -= PTR_SIZE);
+ vla_flags |= VLA_SP_LOC_SET;
+ }
+}
+
static void vla_sp_save(void) {
if (!(vla_flags & VLA_SP_LOC_SET)) {
*vla_sp_loc = (loc -= PTR_SIZE);
@@ -2233,6 +2240,7 @@
}
}
+
/* return the pointed type of t */
static inline CType *pointed_type(CType *type)
{
@@ -5456,6 +5464,7 @@
vla_flags = VLA_IN_SCOPE;
vla_sp_loc = &vla_sp_loc_tmp;
}
+ vla_sp_save_prepare();
vla_runtime_type_size(type, &a);
gen_vla_alloc(type, a);
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