Introduce 4-stages profiledbootstrap to get a better profile.

2017-06-19 Martin Liska <[email protected]> * doc/install.texi: Document that PGO runs in 4 stages. 2017-06-19 Martin Liska <[email protected]> * Makefile.def: Define 4 stages PGO bootstrap. * Makefile.tpl: Define FLAGS. * Makefile.in: Regenerate. From-SVN: r249366
yaobinwen · Jun 19, 2017 · 0d053a4 · 0d053a4
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,9 @@
+2017-06-19  Martin Liska  <[email protected]>
+
+	* Makefile.def: Define 4 stages PGO bootstrap.
+	* Makefile.tpl: Define FLAGS.
+	* Makefile.in: Regenerate.
+
 2017-06-14  Ian Lance Taylor  <[email protected]>
 
 	* Makefile.def: Add check-gotools to go check targets.

diff --git a/Makefile.def b/Makefile.def
@@ -623,7 +623,10 @@ bootstrap_stage = {
 bootstrap_stage = {
 	id=profile ; prev=1 ; };
 bootstrap_stage = {
-	id=feedback ; prev=profile ;
+	id=train; prev=profile ;
+	bootstrap_target=profiledbootstrap ; };
+bootstrap_stage = {
+	id=feedback ; prev=train;
 	bootstrap_target=profiledbootstrap ; };
 bootstrap_stage = {
 	id=autoprofile ; prev=1 ;