>> I'm porting a private backend from an old 4.6 branch to the 6.1.0 >> release, and I have some troubles eliminating my frame pointer without >> -fomit-frame-pointer option. >> Elimination is correctly done with -fomit-frame-pointer. > If the target's default is -fno-omit-frame-pointer, then it's as expected. Ok, thanks for your reply. The 4.6 backend was testing if the hardware FP was live, and did some optimization whatever -fomit-frame-pointer or -fno-omit-frame-pointer. So it was not a valid optimization?
With the 6.1 branch, the hardware frame pointer is always live when no-omit-frame-pointer, preventing such an optimization when the hardware fp is not used... Thanks, Aurélien
