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Subject: [Bug middle-end/55142] [4.8 Regression] internal compiler error: in plus_constant, at explow.c:88
Date: Wed, 07 Nov 2012 22:43:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55142

--- Comment #22 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-11-07 22:43:00 UTC ---
> (,%eax,4) generates a 0x67 address-size prefix, which zero-extends
> 32-bit address to 64-bit.

OK, I see.  Then it would be interesting to have a testcase that generates the
problematic

  mov    %edx,-0x40000300(%rax)

in order to really understand the issue.