diff options
Diffstat (limited to 'gcc/config/rs6000/predicates.md')
| -rw-r--r-- | gcc/config/rs6000/predicates.md | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md index 6aefe2dd0c9..5f4b233cef9 100644 --- a/gcc/config/rs6000/predicates.md +++ b/gcc/config/rs6000/predicates.md @@ -1,5 +1,5 @@ ;; Predicate definitions for POWER and PowerPC. -;; Copyright (C) 2005, 2006 Free Software Foundation, Inc. +;; Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. ;; ;; This file is part of GCC. ;; @@ -640,8 +640,8 @@ (match_operand 0 "reg_or_mem_operand"))) ;; Return 1 if the operand is a general register or memory operand without -;; pre_inc or pre_dec, which produces invalid form of PowerPC lwa -;; instruction. +;; pre_inc or pre_dec or pre_modify, which produces invalid form of PowerPC +;; lwa instruction. (define_predicate "lwa_operand" (match_code "reg,subreg,mem") { @@ -654,6 +654,8 @@ || (memory_operand (inner, mode) && GET_CODE (XEXP (inner, 0)) != PRE_INC && GET_CODE (XEXP (inner, 0)) != PRE_DEC + && (GET_CODE (XEXP (inner, 0)) != PRE_MODIFY + || legitimate_indexed_address_p (XEXP (XEXP (inner, 0), 1), 0)) && (GET_CODE (XEXP (inner, 0)) != PLUS || GET_CODE (XEXP (XEXP (inner, 0), 1)) != CONST_INT || INTVAL (XEXP (XEXP (inner, 0), 1)) % 4 == 0)); |