Fix x86-64 vla

For example, it should look like this
High stack
-------------
----- Func_ret_sub
------------
---- Vla stack
-------------
---- Known loc
--------------
Low

Increased loc_stack () function is used for temporary stack management, call save_reg (), released by load ()
Like this
Before use
High
----- Known loc
----
---
----
---- Pop_stack
Low
loc_stack (size, 1)
After use
High
----- Known loc
---- Pop_stack
---
----
----
Low

1 files changed, 3 insertions, 1 deletions

diff --git a/tcc.h b/tcc.h
index 266b43a..f56273f 100644
--- a/tcc.h
+++ b/tcc.h
@@ -761,7 +761,7 @@ struct TCCState {
 #define VT_LVAL_TYPE     (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED)
 #define VT_BOUNDED   	0x8000  /* value is bounded. The address of the
                                 bounding function call point is in vc */
-#define VT_TMP		0x10000
+#define VT_TMP		0x10000     /* luck or tmp stack */
 
 /* types */
 #define VT_BTYPE       0x000f  /* mask for basic type */
@@ -1212,6 +1212,7 @@ ST_FUNC int ieee_finite(double d);
 ST_FUNC void test_lvalue(void);
 ST_FUNC void swap(int *p, int *q);
 ST_FUNC void vpushi(int v);
+ST_FUNC void vpushs(addr_t v);
 ST_FUNC Sym *external_global_sym(int v, CType *type, int r);
 ST_FUNC void vset(CType *type, int r, int v);
 ST_FUNC void vswap(void);
@@ -1247,6 +1248,7 @@ ST_FUNC void gen_inline_functions(void);
 ST_FUNC void decl(int l);
 ST_FUNC void vdup(void);
 ST_FUNC void gaddrof(void);
+ST_FUNC int loc_stack(int size, int is_sub);
 #if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67
 ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size);
 #endif