[Issue 6401] infinite loop with -inline in gflow.c:accumaecpx

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=6401

safety0ff.bugz <safety0ff.bugz at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |safety0ff.bugz at gmail.com

--- Comment #8 from safety0ff.bugz <safety0ff.bugz at gmail.com> ---
Once the patch for bug 19550 is applied, this bug should be a duplicate of bug
#7157.

The common issue with #7157 is that `aewalk` use an O(N) search for available
expressions to reduce expressions. This subsequently leads to a blow of
`el_match` calls.

It should be possible to fix this by changing the O(N) search to a sorted
search or hashing scheme.

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