On Tue, 15 Feb 2005 16:29:09 -0500, Andrew Pinski <[EMAIL PROTECTED]> wrote: > > On Feb 15, 2005, at 4:26 PM, Richard Guenther wrote: > > > Ok, I guess the following excerpts from cp/typechk.c show a > > discrepancy: > > Can you at least reduce the C++ code and also provide the patch which > you are working on currently, this will help us understand the problem > better?
Yes, I'm working at fixing PR19807, i.e. folding of &a[] + c and &a + c, current patch (and related fixes) attached. The failure above occours during the build of libstdc++ - the exact file/condition (I think this was just a regular build, not a bootstrap, and with CFLAGS=-g for better debugging, because a previous bootstrap failure was not debuggable) is currently unavailable, but I can dig that out tomorrow. Fact is, the tree-checker in gimplify.c chokes on the tree generated by the frontend and the patch fixes that. I made the fix by inspection of the code and think the bug is obvious, but of course I'm not very familiar with the C++ frontend. Hope this clarifies things a bit - I'll collect the testcases for the latent bugs I'm uncovering for inclusion once I submit the triggering patch. Richard.
