X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firopt_t.h;h=dd7964888c4076357f6f88dc80ba0e892b13e35a;hb=a08e6f04aa3669cff094f94a9484c7c2bb1314d0;hp=9fa4cb4f1f07c77be7ff9247eb82904690f35a7d;hpb=ce6161a7e42a48f7422b7babcc64d8ace18e2687;p=libfirm

diff --git a/ir/ir/iropt_t.h b/ir/ir/iropt_t.h
index 9fa4cb4f1..dd7964888 100644
--- a/ir/ir/iropt_t.h
+++ b/ir/ir/iropt_t.h
@@ -120,6 +120,11 @@ static inline ir_tarval *value_of(const ir_node *n)
 	return value_of_ptr(n);
 }
 
+/**
+ * returns true if a value becomes zero when converted to mode @p mode
+ */
+bool ir_zero_when_converted(const ir_node *node, ir_mode *dest_mode);
+
 /**
  * Sets the default operations for an ir_op_ops.
  *
@@ -131,36 +136,10 @@ static inline ir_tarval *value_of(const ir_node *n)
  */
 ir_op_ops *firm_set_default_operations(unsigned code, ir_op_ops *ops);
 
-/**
- * Returns true if a == -b
- */
-bool is_negated_value(ir_node *a, ir_node *b);
+int ir_mux_is_abs(const ir_node *sel, const ir_node *mux_true,
+                  const ir_node *mux_false);
 
-
-
-/** NOTE: Survive DCE is considered a bad hack - don't use */
-typedef struct survive_dce_t survive_dce_t;
-
-/**
- * Make a new Survive DCE environment.
- * NOTE: Survive DCE is considered a bad hack - don't use
- */
-survive_dce_t *new_survive_dce(void);
-
-/**
- * Free a Survive DCE environment.
- * NOTE: Survive DCE is considered a bad hack - don't use
- */
-void free_survive_dce(survive_dce_t *sd);
-
-/**
- * Register a node pointer to be patched upon DCE.
- * When DCE occurs, the node pointer specified by @p place will be
- * patched to the new address of the node it is pointing to.
- *
- * @param sd    The Survive DCE environment.
- * @param place The address of the node pointer.
- */
-void survive_dce_register_irn(survive_dce_t *sd, ir_node **place);
+ir_node *ir_get_abs_op(const ir_node *sel, ir_node *mux_true,
+                       ir_node *mux_false);
 
 #endif