lto: drop dummy partition mapping

When adding a catch-all partition, we map NULL to it.  That mapping is
ineffective and unnecessary.  Drop it.

for  gcc/lto/ChangeLog

	* lto-partition.cc (lto_1_to_1_map): Drop NULL partition
	mapping.

diff --git a/gcc/lto/lto-partition.cc b/gcc/lto/lto-partition.cc
index ebb9c3a..654d67f 100644 (file)
--- a/gcc/lto/lto-partition.cc
+++ b/gcc/lto/lto-partition.cc
@@ -333,7 +333,6 @@ lto_1_to_1_map (void)
       else
        {
          partition = new_partition ("");
-         pmap.put (NULL, partition);
          npartitions++;
        }