------- Additional Comments From uros at kss-loka dot si 2005-02-14 07:03
-------
The patch for the problem described in description of this bug is actually at
http://gcc.gnu.org/ml/gcc-patches/2004-09/msg01928.html. There is an
inconsistency in simplify_binary_operation(), as decribed in b).
Index: simplify-rtx.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/simplify-rtx.c,v
retrieving revision 1.204
diff -u -p -r1.204 simplify-rtx.c
--- simplify-rtx.c 9 Sep 2004 17:19:16 -0000 1.204
+++ simplify-rtx.c 20 Sep 2004 14:03:51 -0000
@@ -1309,7 +1309,10 @@ simplify_binary_operation (enum rtx_code
REAL_ARITHMETIC (value, rtx_to_tree_code (code), f0, f1);
value = real_value_truncate (mode, value);
- return CONST_DOUBLE_FROM_REAL_VALUE (value, mode);
+ tem = CONST_DOUBLE_FROM_REAL_VALUE (value, mode);
+ if (MEM_P (op0) || MEM_P (op1))
+ tem = validize_mem (force_const_mem (mode, tem));
+ return tem;
}
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19150
