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From: "uweigand at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/50307] New: SSA checking ICE when building Linux kernel
Date: Tue, 06 Sep 2011 17:39:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D50307

             Bug #: 50307
           Summary: SSA checking ICE when building Linux kernel
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: ice-checking
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: uweigand@gcc.gnu.org


Created attachment 25206
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D25206
Reduced test case

When building the attached test case (reduced from Linux kernel code) with =
-O2
(tested on i386 and arm), I'm getting the following ICE:

vsprintf.i: In function =E2=80=98vscnprintf=E2=80=99:
vsprintf.i:5:1: error: number of operands and imm-links don=E2=80=99t agree=
 in
statement
# .MEM_26 =3D VDEF <.MEM_17>
args =3D args_7(D);
vsprintf.i:5:1: internal compiler error: verify_ssa failed

Seems to be related to re-inlining and outlined part of the original functi=
on
...