GCC build failure, HEAD@166954 on native

[regress at apple dot com (regress)]

With your recent patch, GCC HEAD revision 166954 had problems on:
native: build (about the same as the previous build)
Attached is build output for those targets.
The previous build was of revision 166953.

Log information for changes since the last build:
------------------------------------------------------------------------
r166954 | amylaar | 2010-11-19 11:22:27 -0800 (Fri, 19 Nov 2010) | 34 lines
Changed paths:
   M /trunk/gcc/ChangeLog
   M /trunk/gcc/config/crx/crx.c

	PR target/46434
	* config/crx/crx.c (crx_expand_epilogue): Remove unused variable.
Index: config/crx/crx.c
===================================================================
--- config/crx/crx.c	(revision 166609)
+++ config/crx/crx.c	(working copy)
@@ -613,6 +613,8 @@ static int crx_addr_reg_p (rtx addr_reg)
       return FALSE;
     }
 
+  gcc_assert (REGNO (reg) != CC_REGNUM);
+
   return TRUE;
 }
 
@@ -1439,17 +1441,12 @@ crx_expand_prologue (void)
 void
 crx_expand_epilogue (void)
 {
-  rtx return_reg;
-
   /* Nonzero if we need to return and pop only RA. This will generate a
    * different insn. This differentiate is for the peepholes for call as last
    * statement in function. */
   int only_popret_RA = (save_regs[RETURN_ADDRESS_REGNUM]
 			&& (sum_regs == UNITS_PER_WORD));
 
-  /* Return register.  */
-  return_reg = gen_rtx_REG (Pmode, RETURN_ADDRESS_REGNUM);
-
   if (frame_pointer_needed)
     /* Restore the stack pointer with the frame pointers value */
     emit_move_insn (stack_pointer_rtx, frame_pointer_rtx);

------------------------------------------------------------------------

For more information, see <http://gcc.gnu.org/regtest/HEAD/>.

Attachment: native-log.txt
Description: Text document

-- 
Geoffrey Keating <geoffk@apple.com> 
(via an automated GCC regression-testing script.)