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[Bug libc/15605] gcc-4.8 + tree-loop-distribute-patterns breaks is unsafe for GLIBC


https://sourceware.org/bugzilla/show_bug.cgi?id=15605

--- Comment #9 from philippe.gislard at morpho dot com ---
(In reply to philippe.gislard from comment #8)
> Hi,
> 
> I'm using gcc 4.9.1, and I have and issue when reimplementing memset that is
> quite similar:
> loop inside memset is transformed into recursive call to memset
> 
> I noticed that when compiling with -fno-tree-loop-distribute-patterns has no
> impact but with -fno-tree-ch the issue disappear.
> Can someone tell me if it is related to this bug and if possible, what's
> happening exactly and if there is a better way to handle this ?
> 
> Thanks.

My bad: -fno-tree-loop-distribute-patterns DOES workaround this issue

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