Richard Henderson schrieb: > On 10/13/2011 11:16 AM, Georg-Johann Lay wrote: >> This patch saves some ticks and bytes on stack by JUMPing to no-return >> functions instead of CALLing them. >> >> Passes without regression. >> >> Ok for trunk? >> >> Johann >> >> * config/avr/avr-protos.h (avr_out_call): New prototype. >> * config/avr/avr.md (adjust_len): Add alternative "call". >> (call_insn, call_calue_insn): Use it. Use avr_out_call to print >> assembler. >> * config/avr/avr.c (avr_out_call): New function. >> (adjust_insn_length): Handle ADJUST_LEN_CALL. > > You should have a way to turn this off. Otherwise this makes debugging > the call to abort impossible. > > r~
What do you propose? o A command line option that is on per default like -mnoreturn-tail-calls or -mjmp-noreturn o Hard-coded factor out some function names like "abort", "exit", "_exit" Johann
