https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115138
--- Comment #7 from Iain Sandoe <iains at gcc dot gnu.org> --- additional notes: 1. jamming -std=c++11 into stage2 and 3 cxxflags did not make any difference (I was wondering if some c++17 copy elision thing might have changed the number of temporaries). 2. still there at r15-644 (no surprise) 3. building the object using the stage3 compiler gives the same result as the stage2 one. 4. building the object with the stage3 compiler and -fcompare-debug succeeds. 5. (although it's still out of tree) my aarch64-darwin branch, rebased onto r15-644 also fails in the same way. (not that any of these observations gets us any closer .. )
