Commit 1753331b authored 18 years ago by Roger Sayle Committed by Roger Sayle 18 years ago

re PR tree-optimization/24964 (Does not optimise abs(x)2 to x2)

	PR tree-optimization/24964
	* simplify-rtx.c (simplify_binary_operation_1): Add function comment.
	<MULT>: Minor clean-up.  Don't convert x*-1.0 into -x if we honor
	signaling NaNs.  Optimize -x*-x as x*x for all float modes, and
	abs(x)*abs(x) as x*x for scalar floating point modes.

	* gcc.target/i386/387-10.c: New test case.

From-SVN: r114206

parent 06ac89d1

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re PR tree-optimization/24964 (Does not optimise abs(x)**2 to x**2)

re PR tree-optimization/24964 (Does not optimise abs(x)2 to x2)