[Bug debug/67043] [6 Regression] -fcompare-debug failure with -O3

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67043

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 36081
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36081&action=edit
unreduced testcase

Unreduced testcase is attached.

 % gcc --save-temps -c -fno-partial-inlining -O3 -fcompare-debug rtmutex.i
gcc: error: rtmutex.i: -fcompare-debug failure