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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/65028] [5 Regression] 450.soplex in SPEC CPU 2006 is miscompiled
Date: Wed, 18 Feb 2015 19:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65028

--- Comment #33 from H.J. Lu <hjl.tools at gmail dot com> ---
There are many calls to _ZmlRK10ggSpectrumS1_ in LTO IR. Some calls have
parameters with unknown alignment.  But they are ignored by IPA-CP, which
applies parameter alignment from calls with known parameter alignment.
When _ZmlRK10ggSpectrumS1_ is called from callers with 8-byte parameter
alignment, it crashes.