Actually, looking more at this, I'd say combiner is innocent here, the problem is earlier , during ce1 pass, which transforms: 16: ax:SI=call [`output_play'] argc:0 REG_DEAD di:DI REG_DEAD si:SI 17: r60:SI=ax:SI REG_DEAD ax:SI 18: flags:CCGOC=cmp(r59:SI,0) 19: pc={(flags:CCGOC>=0)?L21:pc} REG_DEAD flags:CCGOC REG_BR_PROB 0x1c84 20: NOTE_INSN_BASIC_BLOCK 4 6: r60:SI=r59:SI REG_DEAD r59:SI 21: L21: 22: NOTE_INSN_BASIC_BLOCK 5 into: 16: ax:SI=call [`output_play'] argc:0 REG_DEAD di:DI REG_DEAD si:SI 17: r60:SI=ax:SI REG_DEAD ax:SI 18: flags:CCGOC=cmp(r59:SI,0) 53: flags:CCGOC=cmp(r59:SI,0) 54: r60:SI={(flags:CCGOC>=0)?ax:SI:r59:SI} 22: NOTE_INSN_BASIC_BLOCK 4
i.e. does what combiner tries to avoid with hard registers. I don't understand why it can't use r60:SI instead of ax:SI. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1135633 Title: [linaro regression] alsa-tools FTBFS with error "unable to find a register to spill in class ‘AREG’" To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/1135633/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs