libitm: Add multi-lock, write-through TM method.

	libitm/
	* libitm_i.h (GTM::gtm_rwlog_entry): New.
	(GTM::gtm_thread): Add read and write logs.
	(GTM::dispatch_ml_wt): Declare.
	* retry.cc (parse_default_method): Support ml_wt.
	* method-ml.cc: New file.
	* Makefile.am: Add method-ml.cc.
	* Makefile.in: Regenerate.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184212 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 5 insertions, 0 deletions

diff --git a/libitm/retry.cc b/libitm/retry.cc
index 761a066e834a..d59c1834ef00 100644
--- a/libitm/retry.cc
+++ b/libitm/retry.cc
@@ -199,6 +199,11 @@ parse_default_method()
       disp = GTM::dispatch_gl_wt();
       env += 5;
     }
+  else if (strncmp(env, "ml_wt", 5) == 0)
+    {
+      disp = GTM::dispatch_ml_wt();
+      env += 5;
+    }
   else
     goto unknown;