[Bug middle-end/54146] Very slow compile at -O1 (expand vars)

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54146

Steven Bosscher <steven at gcc dot gnu.org> changed:

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--- Comment #9 from Steven Bosscher <steven at gcc dot gnu.org> 2012-08-01 14:24:48 UTC ---
clang compiles the test case with attribute((flatten)) because it doesn't
support that attribute (http://llvm.org/bugs/show_bug.cgi?id=7559).

I'm beginning to think this is one of those cases of "Doctor it hurts if I ..."
that should be closed as WONTFIX. Marc, do you know where the use of the
flatten attribute comes from in your code?