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r109292 - in /branches/gcc-4_1-branch/gcc: Chan...


Author: steven
Date: Tue Jan  3 22:37:46 2006
New Revision: 109292

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109292
Log:
2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>

	* fold-const.c (operand_equal_p): Accept a NULL operand 0 for
	COMPONENT_REFs.
	* emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
	hashing trees instead of a pointer hash.
	(mem_attrs_htab_eq): Do a deep compare instead of a pointer
	compare for MEM_EXPR.

	PR rtl-optimization/25130
	* cse.c (exp_equiv_p): Compare MEM_ATTRS instead of
	* MEM_ALIAS_SET
	when comparing MEMs for GCSE

Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/cse.c
    branches/gcc-4_1-branch/gcc/emit-rtl.c
    branches/gcc-4_1-branch/gcc/fold-const.c


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