[patch] Do not call const_binop on MEM_EXPR

[Eric Botcazou]

Hi,

const_binop is now invoked on MEM_EXPR, which doesn't make much sense given 
the assertion at the end:

  /* Make sure type and arg0 have the same saturating flag.  */
  gcc_checking_assert (TYPE_SATURATING (type)
		       == TYPE_SATURATING (TREE_TYPE (arg1)));

Tested on x86_64-suse-linux, OK for the mainline?


2015-01-22  Eric Botcazou  <ebotcazou@adacore.com>

	* fold-const.c (fold_binary_loc): Do not call const_binop on MEM_REF.


-- 
Eric Botcazou
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