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Re: [tree-ssa] Tail recursion improvement
- From: law at redhat dot com
- To: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>
- Cc: gcc-patches at gcc dot gnu dot org, jh at suse dot cz, rth at redhat dot com
- Date: Thu, 04 Mar 2004 16:50:43 -0700
- Subject: Re: [tree-ssa] Tail recursion improvement
- Reply-to: law at redhat dot com
In message <20040304153621.GA6206@atrey.karlin.mff.cuni.cz>, Zdenek Dvorak writ
es:
>Hello,
>
>> >Index: tree-optimize.c
>> As discussed, the tree-optimize.c change is wrong. I did a new test cycle
>> without the tree-optimize.c change.
>
>I tried to get the tree-optimize.c change working; so I have moved both
>pass_ch and pass_tail_recursion after pass_may_alias, and updated the
>loop header copying to handle name tags. After that I
>encountered a few problems on the following testcase (taken from
>libmudflap testsuite; note that the program is buggy and accesses
>nonallocated memory):
The whole point of that program is to access non-allocated memory and
trigger a mudflap violation :-)
It sounds Diego has volunteered to deal with the issues you've raised, so
I'll leave the rest to him ;-)
jeff