Hi Johann, Turning off -fcaller-saves for AVR makes the testcase I had for PR 71873 pass unless I explicitly add -fcaller-saves to force the compiler to generate the triggering insn patterns.
Wonder if we should modify the existing test cases in gcc.target/avr to be tested both ways (with and without caller saves)? At least the register allocation related ones probably won't catch regressions. Regards Senthil
