[Bug lto/47607] New: FAIL: gcc.c-torture/execute/builtins/abs-2.c execution, -O2 -flto

[amodra at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47607

           Summary: FAIL: gcc.c-torture/execute/builtins/abs-2.c
                    execution,  -O2 -flto
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: amodra@gmail.com


Created attachment 23244
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23244
compile with -w -O2 -m32 -flto abs-2.i abs-2-lib.i main.i -lm

Fails due to "bl main_test" branching to a bogus location.  This is because the
only definition for main_test is one from the IR file, and ld doesn't check
that the symbol has been replaced with a real one.  With the patch in
http://sourceware.org/ml/binutils/2011-02/msg00037.html we get a linker error.

Reversing the order of inputs..
../gcc/xgcc -B ../gcc/ -w -O2 -m32 -flto main.i abs-2.i abs-2-lib.i -lm
lto1: internal compiler error: in lto_varpool_replace_node, at lto-symtab.c:305