Add a PR reference.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182506 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 92be4a0..feefdbc 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,6 @@
 2011-12-19  Richard Sandiford  <rdsandiford@googlemail.com>
 
 2011-12-19  Richard Sandiford  <rdsandiford@googlemail.com>
 

+       PR rtl-optimization/42839

        * fwprop.c (forward_propagate_subreg): Skip the SIGN/ZERO_EXTEND
        optimization if the source register is already extended.
 
        * fwprop.c (forward_propagate_subreg): Skip the SIGN/ZERO_EXTEND
        optimization if the source register is already extended.