[Bug bootstrap/63703] [4.9.2 Regression] cc1: internal compiler error: in init_reg_sets, at reginfo.c:178

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63703

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|powerpc-unknown-darwin      |powerpc-apple-darwin9
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-11-22
                 CC|                            |fxcoudert at gcc dot gnu.org
               Host|powerpc-unknown-darwin      |powerpc-apple-darwin9
            Summary|[4.9 Regression] cc1:       |[4.9.2 Regression] cc1:
                   |internal compiler error: in |internal compiler error: in
                   |init_reg_sets, at           |init_reg_sets, at
                   |reginfo.c:178               |reginfo.c:178
     Ever confirmed|0                           |1
              Build|powerpc-unknown-darwin      |powerpc-apple-darwin9

--- Comment #6 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
(In reply to Lawrence Velázquez from comment #5)
> Some MacPorts users are now reporting this.

Can you provide a backtrace of the error? In the build directory, run the
executable "gcc/cc1" on a test source file (like the empty main program that
libgcc configure tries to compile), under the debugger: "lldb -- ./gcc/cc1
test.c"

The debugger starts, then you type "r" (without quotes) and enter. It will stop
at the point of failure, then you type "bt" and enter again. Paste here the
result of that last command. This will help understand where things are going
wrong.
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/64028] New: [5 Regression] r211599 caused many vectorizer test failures with -fPIC
Date: Sat, 22 Nov 2014 17:30:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd028

            Bug ID: 64028
           Summary: [5 Regression] r211599 caused many vectorizer test
                    failures with -fPIC
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: hubicka at ucw dot cz

On Linux/ia32, r211599 caused many vectorizer test failures with -fPIC,
like:

FAIL: gcc.dg/vect/vect-7.c scan-tree-dump-times vect "Vectorizing an unaligned
a
ccess" 0
FAIL: gcc.dg/vect/vect-7.c -flto -ffat-lto-objects  scan-tree-dump-times vect
"V
ectorizing an unaligned access" 0