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Re: [tree-ssa] Removing redundant loads


On Fri, 30 May 2003 16:54:47 -0600, law@redhat.com wrote:

> ARggh.
>
> operand_equal_p returns false if either operand has side effects -- even
> if both operands are equal.

Hmm.  This isn't a problem for gimple_tree_eq, since I don't want to share
a temp between evaluations of an expression with side effects.

> For example, if you pass it this tree for both operands, you'll get a
> false back from operand_b because this expression has tree_side_effects
> set.

Why does that expression have TREE_SIDE_EFFECTS set?

Jason


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