ipa-inline.c (inline_small_functions): Account only non-cold functions.

	* ipa-inline.c (inline_small_functions): Account only non-cold
	functions.
	* doc/invoke.texi (inline-unit-growth): Update documentation.

From-SVN: r209490

gcc/ChangeLog

+2014-04-17  Jan Hubicka  <hubicka@ucw.cz>
+
+	* ipa-inline.c (inline_small_functions): Account only non-cold
+	functions.
+	* doc/invoke.texi (inline-unit-growth): Update documentation.
+
 2014-04-17  Pat Haugen  <pthaugen@us.ibm.com>
 
 	* config/rs6000/rs6000.md (addti3, subti3): New.

gcc/doc/invoke.texi

@@ -9409,7 +9409,8 @@ before applying @option{--param inline-unit-growth}.  The default is 10000.
 @item inline-unit-growth
 Specifies maximal overall growth of the compilation unit caused by inlining.
 The default value is 30 which limits unit growth to 1.3 times the original
-size.
+size. Cold functions (either marked cold via an attribibute or by profile
+feedback) are not accounted into the unit size.
 
 @item ipcp-unit-growth
 Specifies maximal overall growth of the compilation unit caused by

gcc/ipa-inline.c

@@ -1585,7 +1585,10 @@ inline_small_functions (void)
 	    struct inline_summary *info = inline_summary (node);
 	    struct ipa_dfs_info *dfs = (struct ipa_dfs_info *) node->aux;
 
-	    if (!DECL_EXTERNAL (node->decl))
+	    /* Do not account external functions, they will be optimized out
+	       if not inlined.  Also only count the non-cold portion of program.  */
+	    if (!DECL_EXTERNAL (node->decl)
+		&& node->frequency != NODE_FREQUENCY_UNLIKELY_EXECUTED)
 	      initial_size += info->size;
 	    info->growth = estimate_growth (node);
 	    if (dfs && dfs->next_cycle)