r121838 - in /trunk/gcc: ChangeLog simplify-rtx...

[sayle@gcc.gnu.org]

Author: sayle
Date: Mon Feb 12 01:43:50 2007
New Revision: 121838

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=121838
Log:

	* simplify-rtx.c (simplify_relational_operation_1): Optimize
	comparisons of POPCOUNT against zero.
	(simplify_const_relational_operation): Likewise.

	* gcc.target/ia64/builtin-popcount-1.c: New test case.
	* gcc.target/ia64/builtin-popcount-2.c: Likewise.


Added:
    trunk/gcc/testsuite/gcc.target/ia64/builtin-popcount-1.c
    trunk/gcc/testsuite/gcc.target/ia64/builtin-popcount-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/simplify-rtx.c
    trunk/gcc/testsuite/ChangeLog