[Bug target/66563] [4.9 Regression] ICE (segmentation fault) on sh4-linux-gnu

[kkojima at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66563

--- Comment #5 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Matthias Klose from comment #0)
> Created attachment 35792 [details]
> preprocessed source
> 
> seen while building the GCC 5 branch using GCC 4.9 SVN 20150531 (r223898):

I can't reproduce the problem with all my 4.9 compilers:

cross 4.9 (SVN rev. 224552) compiler
native 4.9 (SVN rev. 224552) compiler built with the above cross 4.9 compiler
native 4.9 (SVN rev. 222859) compiler built with bootstrap

against the test case in my environment.  The last target specific
change of 4.9 SVN tree was

r221686 | olegendo | 2015-03-26 16:46:51 +0900 (Thu, 26 Mar 2015) | 6 lines

So if the test case fails with the vanilla gcc 4.9 rev 223898 built
on Debian, the issue isn't caused by the target specific changes or it
depends on the environment weirdly.  I'll try a new bootstrap on 4.9
SVN rev. 224552 and see it's ok with the test case.  It'll take ~2
weeks, though.  Perhaps it's better to run your cc1 under gdb or
strace and see where/why that segfault happens.