Revert "Disable C99 VLA when alloca is unavailable."

This reverts commit e3e5d4ad7a475e30ea13ad1ba9f23e6210d5d431.

2 files changed, 2 insertions, 10 deletions

diff --git a/tccgen.c b/tccgen.c
index f573dff..7fb7cfe 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -3162,21 +3162,17 @@ static void post_type(CType *type, AttributeDef *ad)
         n = -1;
         if (tok != ']') {
             gexpr();
-#ifdef TOK_alloca
             if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) {
-#endif
                 n = vtop->c.i;
                 last_vtop = vtop;
                 if (n < 0)
                     error("invalid array size");
-#ifdef TOK_alloca
             } else {
                 if (!is_integer_btype(vtop->type.t & VT_BTYPE))
                     error("size of variable length array should be an integer");
                 type->t |= VT_VLA;
                 last_vtop = vtop;
             }
-#endif
         }
         skip(']');
         /* parse next post type */
@@ -4868,11 +4864,7 @@ static void decl_initializer(CType *type, Section *sec, unsigned long c,
         int a;
         CValue retcval;
 
-/* No need to coment all the block as it will never be called without
-   TOK_alloca defined (See ifdef TOK_alloca stanza in post_type */
-#ifdef TOK_alloca
         vpush_global_sym(&func_old_type, TOK_alloca);
-#endif
         vla_runtime_type_size(type, &a);
         gfunc_call(1);
 
diff --git a/tests/tcctest.c b/tests/tcctest.c
index a8ec2fa..499a071 100644
--- a/tests/tcctest.c
+++ b/tests/tcctest.c
@@ -2010,7 +2010,7 @@ void old_style_function(void)
 
 void alloca_test()
 {
-#ifdef TOK_alloca
+#if defined __i386__ || defined __x86_64__
     char *p = alloca(16);
     strcpy(p,"123456789012345");
     printf("alloca: p is %s\n", p);
@@ -2022,7 +2022,7 @@ void alloca_test()
 
 void c99_vla_test(int size1, int size2)
 {
-#ifdef TOK_alloca
+#if defined __i386__ || defined __x86_64__
     int tab1[size1 * size2][2], tab2[10][2];
     void *tab1_ptr, *tab2_ptr;