Arithmetic exception flag and a plethora of tests.

[xonotic/gmqcc.git] / ast.c

diff --git a/ast.c b/ast.c
index 362a06f4e43da901d3ef44c6aa82c5132fc3b64f..5c38fa96ea4819319bef814cf819005d734057b3 100644 (file)
--- a/ast.c
+++ b/ast.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012, 2013
+ * Copyright (C) 2012, 2013, 2014
  *     Wolfgang Bumiller
  *     Dale Weiler
  *
@@ -113,8 +113,10 @@ static void ast_expression_init(ast_expression *self,
     self->outr     = NULL;
     self->params   = NULL;
     self->count    = 0;
-    self->flags    = 0;
     self->varparam = NULL;
+    self->flags    = 0;
+    if (OPTS_OPTION_BOOL(OPTION_COVERAGE))
+        self->flags |= AST_FLAG_BLOCK_COVERAGE;
 }
 
 static void ast_expression_delete(ast_expression *self)
@@ -357,6 +359,7 @@ ast_value* ast_value_new(lex_ctx_t ctx, const char *name, int t)
     self->cvq      = CV_NONE;
     self->hasvalue = false;
     self->isimm    = false;
+    self->inexact  = false;
     self->uses     = 0;
     memset(&self->constval, 0, sizeof(self->constval));
     self->initlist = NULL;
@@ -438,10 +441,27 @@ bool ast_value_set_name(ast_value *self, const char *name)
 ast_binary* ast_binary_new(lex_ctx_t ctx, int op,
                            ast_expression* left, ast_expression* right)
 {
-    ast_binary *fold;
     ast_instantiate(ast_binary, ctx, ast_binary_delete);
     ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_binary_codegen);
 
+    if (ast_istype(right, ast_unary) && OPTS_OPTIMIZATION(OPTIM_PEEPHOLE)) {
+        ast_unary      *unary  = ((ast_unary*)right);
+        ast_expression *normal = unary->operand;
+
+        /* make a-(-b) => a + b */
+        if (unary->op == VINSTR_NEG_F || unary->op == VINSTR_NEG_V) {
+            if (op == INSTR_SUB_F) {
+                op = INSTR_ADD_F;
+                right = normal;
+                ++opts_optimizationcount[OPTIM_PEEPHOLE];
+            } else if (op == INSTR_SUB_V) {
+                op = INSTR_ADD_V;
+                right = normal;
+                ++opts_optimizationcount[OPTIM_PEEPHOLE];
+            }
+        }
+    }
+
     self->op = op;
     self->left = left;
     self->right = right;
@@ -450,11 +470,6 @@ ast_binary* ast_binary_new(lex_ctx_t ctx, int op,
     ast_propagate_effects(self, left);
     ast_propagate_effects(self, right);
 
-    if (OPTS_OPTIMIZATION(OPTIM_PEEPHOLE) && (fold = (ast_binary*)fold_superfluous(left, right, op))) {
-        ast_binary_delete(self);
-        return fold;
-    }
-
     if (op >= INSTR_EQ_F && op <= INSTR_GT)
         self->expression.vtype = TYPE_FLOAT;
     else if (op == INSTR_AND || op == INSTR_OR) {
@@ -529,10 +544,8 @@ ast_unary* ast_unary_new(lex_ctx_t ctx, int op,
         ast_unary *prev = (ast_unary*)((ast_unary*)expr)->operand;
 
         /* Handle for double negation */
-        if ((((ast_unary*)expr)->op == VINSTR_NEG_V && op == VINSTR_NEG_V) ||
-            (((ast_unary*)expr)->op == VINSTR_NEG_F && op == VINSTR_NEG_F)) {
+        if (((ast_unary*)expr)->op == op)
             prev = (ast_unary*)((ast_unary*)expr)->operand;
-        }
 
         if (ast_istype(prev, ast_unary)) {
             ast_expression_delete((ast_expression*)self);
@@ -1214,6 +1227,9 @@ ast_function* ast_function_new(lex_ctx_t ctx, const char *name, ast_value *vtype
     self->fixedparams      = NULL;
     self->return_value     = NULL;
 
+    self->static_names     = NULL;
+    self->static_count     = 0;
+
     return self;
 
 cleanup:
@@ -1235,6 +1251,9 @@ void ast_function_delete(ast_function *self)
          */
         ast_unref(self->vtype);
     }
+    for (i = 0; i < vec_size(self->static_names); ++i)
+        mem_d(self->static_names[i]);
+    vec_free(self->static_names);
     for (i = 0; i < vec_size(self->blocks); ++i)
         ast_delete(self->blocks[i]);
     vec_free(self->blocks);
@@ -1414,6 +1433,8 @@ bool ast_global_codegen(ast_value *self, ir_builder *ir, bool isfield)
             self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
         if (self->expression.flags & AST_FLAG_ERASEABLE)
             self->ir_v->flags |= IR_FLAG_ERASEABLE;
+        if (self->expression.flags & AST_FLAG_BLOCK_COVERAGE)
+            func->flags |= IR_FLAG_BLOCK_COVERAGE;
         /* The function is filled later on ast_function_codegen... */
         return true;
     }
@@ -1794,6 +1815,7 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
     ir_value    *dummy;
     ast_expression         *ec;
     ast_expression_codegen *cgen;
+
     size_t    i;
 
     (void)ir;