https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66488
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2015-06-11 Ever confirmed|0 |1 --- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- You compile without optimization? (no -O2 for example?) Note that I forgot that with -flto a single preprocessed file doesn't really help to reproduce. We'd need a minimal set of preprocessed sources where g++ <flags> -flto -r -nostdlib <preprocessed sources> reproduces the issue (so compile & link on the same command-line preferably). With -r -nostdlib you avoid linker errors later. Reducing is easier with -flto-partition=1to1 (if the issue reproduces with that...).