Add function exposing HAVE_GCC_GLOBAL_REGS (#8359)

Author: joerowell

Zend/zend_execute.c

@@ -229,6 +229,15 @@ ZEND_API zval* zend_get_compiled_variable_value(const zend_execute_data *execute
 	return EX_VAR(var);
 }
 
+ZEND_API bool zend_gcc_global_regs(void)
+{
+  #if defined(HAVE_GCC_GLOBAL_REGS)
+        return 1;
+  #else
+        return 0;
+  #endif
+}
+
 static zend_always_inline zval *_get_zval_ptr_tmp(uint32_t var EXECUTE_DATA_DC)
 {
 	zval *ret = EX_VAR(var);

Zend/zend_execute.h

@@ -360,6 +360,8 @@ ZEND_API void zend_fetch_dimension_const(zval *result, zval *container, zval *di
 
 ZEND_API zval* zend_get_compiled_variable_value(const zend_execute_data *execute_data_ptr, uint32_t var);
 
+ZEND_API bool zend_gcc_global_regs(void);
+
 #define ZEND_USER_OPCODE_CONTINUE   0 /* execute next opcode */
 #define ZEND_USER_OPCODE_RETURN     1 /* exit from executor (return from function) */
 #define ZEND_USER_OPCODE_DISPATCH   2 /* call original opcode handler */

Zend/zend_vm.h

@@ -29,6 +29,7 @@ ZEND_API const void* ZEND_FASTCALL zend_get_opcode_handler_func(const zend_op *o
 ZEND_API const zend_op *zend_get_halt_op(void);
 ZEND_API int ZEND_FASTCALL zend_vm_call_opcode_handler(zend_execute_data *ex);
 ZEND_API int zend_vm_kind(void);
+ZEND_API bool zend_gcc_global_regs(void);
 
 void zend_vm_init(void);
 void zend_vm_dtor(void);