X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fia32%2Fbearch_ia32.c;h=714c49566a543979cdb64810d13849d00d057579;hb=004f9b10d631414720ea9c4a86d3f89b742a027e;hp=8f0594cb38aa3d1f5afb735db683f2849f3a2630;hpb=b334cdb542bb13dac5b787f196b7316c0ea3e630;p=libfirm

diff --git a/ir/be/ia32/bearch_ia32.c b/ir/be/ia32/bearch_ia32.c
index 8f0594cb3..714c49566 100644
--- a/ir/be/ia32/bearch_ia32.c
+++ b/ir/be/ia32/bearch_ia32.c
@@ -456,6 +456,54 @@ static ir_type *ia32_abi_get_between_type(void *self)
 	return env->flags.try_omit_fp ? omit_fp_between_type : between_type;
 }
 
+/**
+ * Get the estimated cycle count for @p irn.
+ *
+ * @param self The this pointer.
+ * @param irn  The node.
+ *
+ * @return     The estimated cycle count for this operation
+ */
+static int ia32_get_op_estimated_cost(const void *self, const ir_node *irn)
+{
+  int cost;
+  switch (get_ia32_irn_opcode(irn)) {
+    case iro_ia32_xDiv:
+    case iro_ia32_DivMod:
+      cost = 8;
+      break;
+
+    case iro_ia32_xLoad:
+    case iro_ia32_l_Load:
+    case iro_ia32_Load:
+    case iro_ia32_Push:
+    case iro_ia32_Pop:
+      cost = 10;
+      break;
+
+    case iro_ia32_xStore:
+    case iro_ia32_l_Store:
+    case iro_ia32_Store:
+    case iro_ia32_Store8Bit:
+      cost = 50;
+      break;
+
+    case iro_ia32_MulS:
+    case iro_ia32_Mul:
+    case iro_ia32_Mulh:
+    case iro_ia32_xMul:
+    case iro_ia32_l_MulS:
+    case iro_ia32_l_Mul:
+      cost = 2;
+      break;
+
+    default:
+      cost = 1;
+  }
+
+  return cost;
+}
+
 /**
  * Returns the inverse operation if @p irn, recalculating the argument at position @p i.
  *
@@ -572,6 +620,7 @@ static arch_inverse_t *ia32_get_inverse(const void *self, const ir_node *irn, in
 			return NULL;
 	}
 
+	set_ia32_res_mode(inverse->nodes[0], mode);
 	inverse->nodes[1] = new_r_Proj(irg, block, inverse->nodes[0], mode, pnc);
 
 	return inverse;
@@ -596,7 +645,8 @@ static const arch_irn_ops_if_t ia32_irn_ops_if = {
 	ia32_get_flags,
 	ia32_get_frame_entity,
 	ia32_set_stack_bias,
-	ia32_get_inverse
+	ia32_get_inverse,
+	ia32_get_op_estimated_cost
 };
 
 ia32_irn_ops_t ia32_irn_ops = {