http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46782
Summary: -fcompare-debug failure (length) with -fvar-tracking Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo: unassig...@gcc.gnu.org ReportedBy: zso...@seznam.cz CC: aol...@gcc.gnu.org Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 22614 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22614 reduced testcase Compiler output: $ gcc -fvar-tracking -fcompare-debug pr46782.c pr46782.c:1:0: warning: variable tracking requested, but useless unless producing debug info [enabled by default] gcc: error: pr46782.c: -fcompare-debug failure (length) Fail with -g as well. Tested revisions: r167356 - fail r153685 - fail 4.5 r166509 - fail