Add a PR reference.

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
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+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.
+
+2011-12-19  Richard Sandiford  <rdsandiford@googlemail.com>
+
+       * lower-subreg.c (can_decompose_p): Check every word of a hard
+       register.
+
+2011-12-19  Sandra Loosemore  <sandra@codesourcery.com>
+           Tom de Vries <tom@codesourcery.com>
+
+       PR rtl-opt/50380
+       * cse.c (find_comparison_args): Detect fixed point and
+       bail early.
+
 2011-12-19  Aldy Hernandez  <aldyh@redhat.com>
 
        PR middle-end/51411