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On Fri, 22 Aug 2003 09:37:45 +0100, Nathan Sidwell <nathan@codesourcery.com> wrote:
In tracking down the regressions I'v caused in C++ wrt no-effect expressions, I discovered that building a CALL_EXPR does not automatically set TREE_SIDE_EFFECTS. Both C & C++ frontends set it explicitly immediately afterwards (but C++ forgets a few places).
On the tree-ssa branch we've adopted the convention that a call to a const function does not have TREE_SIDE_EFFECTS set. This could stay limited to the optimizers, but it seems reasonable to warn about ignoring the return value of a call to a const function.
yeah, that seems reasonable too - and was my first thought about why it wasn't being set in make_node. I can patch build to DTRT if you like
-- Nathan Sidwell :: http://www.codesourcery.com :: CodeSourcery LLC The voices in my head said this was stupid too nathan@codesourcery.com :: http://www.planetfall.pwp.blueyonder.co.uk
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