[Bug bootstrap/56689] internal compiler error: in get_loop_body, at cfgloop.c:841

["krebbel at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56689

--- Comment #2 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2013-03-22 14:56:43 UTC ---
Created attachment 29707
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29707
Reduced testcase

cc1plus -fpreprocessed  -quiet  -O2 t.cc

t.cc: In function ‘void fix_register(const char*, int, int)’:
t.cc:33:1: error: size of loop 1 should be 7, not 8
 fix_register (const char *name, int fixed, int call_used)
 ^
t.cc:33:1: internal compiler error: in verify_loop_structure, at cfgloop.c:1640
0x8054a083 verify_loop_structure()
        /home/andreas/clean/gcc-head/gcc/cfgloop.c:1640
0x808a8b43 loop_optimizer_init(unsigned int)
        /home/andreas/clean/gcc-head/gcc/loop-init.c:100
0x80c0ddfd perform_tree_ssa_dce
        /home/andreas/clean/gcc-head/gcc/tree-ssa-dce.c:1554
0x80c0e12f tree_ssa_cd_dce
        /home/andreas/clean/gcc-head/gcc/tree-ssa-dce.c:1637
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
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Subject: [Bug lto/56088] [4.8/4.9 Regression] LTO error: error:=?UTF-8?Q? inlining failed in call to always_inline ‘vswprintf’?=: recursive inlining
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56088

Václav Zeman <vhaisman at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #10 from Václav Zeman <vhaisman at gmail dot com> 2013-03-22 14:57:19 UTC ---
I could not reproduce this with newer snapshots.
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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/56690] New: tree check: expected ssa_name, have var_decl in verify_ssa, at tree-ssa.c:1008
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idV690

             Bug #: 56690
           Summary: tree check: expected ssa_name, have var_decl in
                    verify_ssa, at tree-ssa.c:1008
    Classification: Unclassified
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dcb314@hotmail.com


Created attachment 29708
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id)708
C source code

I just tried to compile the package unuran-1.8.0
on gcc-4.9 trunk dated 20130320 on an AMD x86_64 box.

The compiler said

eigensystem.c: In function '_unur_matrix_eigensystem':
eigensystem.c:67:5: internal compiler error: tree check: expected ssa_name,
have var_decl in verify_ssa, at tree-ssa.c:1008
 int _unur_matrix_eigensystem(int dim, const double *M, double *values, double
*vectors)
     ^

Preprocessed source code attached. Flag -O3 required.