This patch adds two variables named 'TV_CGRAPH_FUNC_EXPANSION' and
'TV_CGRAPH_IPA_PASSES' that count the elapsed time of the functions
'expand_all_functions' and 'ipa_passes', respectivelly.
The main point of this is that these functions takes a very long time
when compiling the 'gimple-match.c' file, and therefore may also take
a long time when compiling other large files.
I also accept suggestions about how to improve this :-)
ChangeLog:
2019-01-24 Giuliano Belinassi <[email protected]>
* cgraph_unit.c (compile): TV_CGRAPH_FUNC_EXPANSION and
TV_CGRAPH_IPA_PASSES start, stop.
* timevar.def (TV_CGRAPH_IPA_PASSES, TV_CGRAPH_FUNC_EXPANSION): New.
Index: gcc/cgraphunit.c
===================================================================
--- gcc/cgraphunit.c (revision 267983)
+++ gcc/cgraphunit.c (working copy)
@@ -2615,8 +2615,11 @@
/* Don't run the IPA passes if there was any error or sorry messages. */
if (!seen_error ())
+ {
+ timevar_start (TV_CGRAPH_IPA_PASSES);
ipa_passes ();
-
+ timevar_stop (TV_CGRAPH_IPA_PASSES);
+ }
/* Do nothing else if any IPA pass found errors or if we are just streaming LTO. */
if (seen_error ()
|| ((!in_lto_p || flag_incremental_link == INCREMENTAL_LINK_LTO)
@@ -2682,7 +2685,11 @@
/* Output first asm statements and anything ordered. The process
flag is cleared for these nodes, so we skip them later. */
output_in_order ();
+
+ timevar_start (TV_CGRAPH_FUNC_EXPANSION);
expand_all_functions ();
+ timevar_stop (TV_CGRAPH_FUNC_EXPANSION);
+
output_variables ();
process_new_functions ();
Index: gcc/timevar.def
===================================================================
--- gcc/timevar.def (revision 267983)
+++ gcc/timevar.def (working copy)
@@ -68,6 +68,8 @@
DEFTIMEVAR (TV_CGRAPH , "callgraph construction")
DEFTIMEVAR (TV_CGRAPHOPT , "callgraph optimization")
+DEFTIMEVAR (TV_CGRAPH_FUNC_EXPANSION , "callgraph functions expansion")
+DEFTIMEVAR (TV_CGRAPH_IPA_PASSES , "callgraph ipa passes")
DEFTIMEVAR (TV_IPA_FNSUMMARY , "ipa function summary")
DEFTIMEVAR (TV_IPA_UNREACHABLE , "ipa dead code removal")
DEFTIMEVAR (TV_IPA_INHERITANCE , "ipa inheritance graph")
