Fix PR 40558, undo part of June 25th patch

Co-Authored-By: Pat Haugen <pthaugen@us.ibm.com>
Co-Authored-By: Revital Eres <eres@il.ibm.com>

From-SVN: r149155

gcc/ChangeLog

+2009-07-01  Michael Meissner  <meissner@linux.vnet.ibm.com>
+
+	PR bootstrap/40558
+	* config/rs6000/rs6000.c (print_operand): Undo change that breaks
+	darwin9 for printing reg addresses with %y.
+
 2009-07-01  Adam Nemet  <anemet@caviumnetworks.com>
 
 	* combine.c (force_to_mode): Handle TRUNCATE.  Factor out
@@ -735,6 +741,19 @@
 	    Pat Haugen  <pthaugen@us.ibm.com>
 	    Revital Eres <ERES@il.ibm.com>
 
+	* config/rs6000/rs6000.c (print_operand): Correct lossage message
+	for %c error.  Add %x support to print VSX registers as a unified
+	register set, instead of separate float and altivec registers.
+	Switch to use VECTOR_MEM_ALTIVEC_P instead of TARGET_ALTIVEC for
+	%y case, and add support for VSX pre-modify addresses.
+	(output_toc): Add assert for CONST containing an integer constant
+	in the PLUS case.
+	(rs6000_adjust_cost): Add POWER7 support.
+	(insn_must_be_first_in_group): Ditto.
+	(insn_must_be_last_in_group): Ditto.
+	(rs6000_emit_popcount): Ditto.
+	(rs6000_vector_mode_supported_p): Ditto.
+
 	* config/rs6000/rs6000-protos.h (rs6000_secondary_reload_class):
 	Change some of the functions called by macros to being called
 	through a pointer, so debug functions can be inserted if

gcc/config/rs6000/rs6000.c

@@ -13471,7 +13471,7 @@ print_operand (FILE *file, rtx x, int code)
 		 && GET_CODE (tmp) == PRE_MODIFY)
 	  tmp = XEXP (tmp, 1);
 	if (GET_CODE (tmp) == REG)
-	  fprintf (file, "%s,%s", reg_names[0], reg_names[REGNO (tmp)]);
+	  fprintf (file, "0,%s", reg_names[REGNO (tmp)]);
 	else
 	  {
 	    if (!GET_CODE (tmp) == PLUS