I'm sure this has come up before, but I don't understand how the -maltivec definition of STACK_BOUNDARY can be right. We tell the compiler that STACK_BOUNDARY == 128 if -maltivec, without telling it that other people may ignore that, because -maltivec is not supposed to be an ABI changing option but IIUC STACK_BOUNDARY is.
Why isn't it 64 in the !TARGET_ALTIVEC case with PREFERRED_STACK_BOUNDARY == 128? -- Daniel Jacobowitz CodeSourcery
