* i386.c (incdec_operand): Accept only 1 and -1.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@42527 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7ae1e66..ac01497 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Thu May 24 15:56:48 CEST 2001  Jan Hubicka  <jh@suse.cz>
+
+       * i386.c (incdec_operand): Accept only 1 and -1.
+
 2001-05-23  Kelley Cook  <kelley.cook@home.com>
 
        * Makefile.in: Move many of the *_H definitions eariler in the

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 33b00b1..8ceb3b7 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -1420,17 +1420,7 @@ incdec_operand (op, mode)
      registers, since carry flag is not set.  */
   if (TARGET_PENTIUM4 && !optimize_size)
     return 0;
-  if (op == const1_rtx || op == constm1_rtx)
-    return 1;
-  if (GET_CODE (op) != CONST_INT)
-    return 0;
-  if (mode == SImode && INTVAL (op) == (HOST_WIDE_INT) 0xffffffff)
-    return 1;
-  if (mode == HImode && INTVAL (op) == (HOST_WIDE_INT) 0xffff)
-    return 1;
-  if (mode == QImode && INTVAL (op) == (HOST_WIDE_INT) 0xff)
-    return 1;
-  return 0;
+  return op == const1_rtx || op == constm1_rtx;
 }
 
 /* Return nonzero if OP is acceptable as operand of DImode shift