fix __builtin_nan and add some missing builtins

[xonotic/gmqcc.git] / ast.h

diff --git a/ast.h b/ast.h
index 04f8c0eaa5ec76f81327cc00214ada72d585d6ed..2459729725641c4bb46828b0c8471edc2bf5f6a7 100644 (file)
--- a/ast.h
+++ b/ast.h
@@ -43,14 +43,15 @@ enum {
     AST_FLAG_IS_VARARG      = 1 << 6,
     AST_FLAG_ALIAS          = 1 << 7,
     AST_FLAG_ERASEABLE      = 1 << 8,
-    AST_FLAG_ACCUMULATE     = 1 << 9,
+    AST_FLAG_NOERASE        = 1 << 9, /* Never allow it to be erased, even if ERASEABLE is present */
+    AST_FLAG_ACCUMULATE     = 1 << 10,
 
     /* An array declared as []
      * so that the size is taken from the initializer
      */
-    AST_FLAG_ARRAY_INIT     = 1 << 10,
+    AST_FLAG_ARRAY_INIT     = 1 << 11,
 
-    AST_FLAG_FINAL_DECL     = 1 << 11,
+    AST_FLAG_FINAL_DECL     = 1 << 12,
 
     /* Several coverage options
      * AST_FLAG_COVERAGE means there was an explicit [[coverage]] attribute,
@@ -59,8 +60,14 @@ enum {
      * In the future there might be more options like tracking variable access
      * by creating get/set wrapper functions.
      */
-    AST_FLAG_COVERAGE       = 1 << 12,
-    AST_FLAG_BLOCK_COVERAGE = 1 << 13,
+    AST_FLAG_COVERAGE       = 1 << 13,
+    AST_FLAG_BLOCK_COVERAGE = 1 << 14,
+
+    /*
+     * Propagates norefness to the IR so the unused (read/write) check can be
+     * more intelligently done.
+     */
+    AST_FLAG_NOREF          = 1 << 15,
 
     AST_FLAG_LAST,
     AST_FLAG_TYPE_MASK      = (AST_FLAG_VARIADIC | AST_FLAG_NORETURN),
@@ -110,7 +117,7 @@ struct ast_node
     bool             m_keep_node;
     bool             m_side_effects;
 
-    void propagateSideEffects(ast_node *other) const;
+    void propagateSideEffects(const ast_node *other);
 };
 
 #define ast_unref(x) do        \
@@ -223,9 +230,6 @@ struct ast_value : ast_expression
      */
     std::vector<basic_value_t> m_initlist;
 
-    /* usecount for the parser */
-    size_t m_uses = 0;
-
     ir_value *m_ir_v = nullptr;
     std::vector<ir_value*> m_ir_values;
     size_t m_ir_value_count = 0;