[Bug c++/60566] [4.9 Regression] r208573 miscompiles kdelibs

[trippels at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60566

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 32387
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32387&action=edit
unreduced testcase

I've narrowed it down to a single file. Can't say I understand
the issue fully yet.

Bad:
x4 kparts # g++ -c -O2 part.ii && nm part.o | grep N6KParts13ReadWritePartD
0000000000004d50 T _ZN6KParts13ReadWritePartD0Ev
0000000000004d00 T _ZN6KParts13ReadWritePartD1Ev
0000000000004cd0 T _ZN6KParts13ReadWritePartD2Ev

Good:
x4 kparts # /var/tmp/gcc_test/usr/local/bin/g++ -c -O2 part.ii && nm part.o |
grep N6KParts13ReadWritePartD 
0000000000004d70 T _ZN6KParts13ReadWritePartD0Ev
0000000000004d00 T _ZN6KParts13ReadWritePartD1Ev
0000000000004cd0 T _ZN6KParts13ReadWritePartD2Ev
0000000000004da0 T _ZThn16_N6KParts13ReadWritePartD0Ev
0000000000004d60 T _ZThn16_N6KParts13ReadWritePartD1Ev
0000000000004d90 T _ZTv0_n24_N6KParts13ReadWritePartD0Ev
0000000000004d50 T _ZTv0_n24_N6KParts13ReadWritePartD1Ev