On Thu, May 2, 2013 at 3:35 PM, reed kotler <rkot...@mips.com> wrote: > This issue of naked function attribute support for Mips has come up in the > context of LLVM and in regards to maintaining compatibility with gcc. > > It's my understanding that the idea of the naked function attribute was > rejected for gcc Mips. > > I'm curious as to why. > > For LLVM it basically works just by nature of how LLVM works in its target > independent part. > > It will not emit the function prologue or epilogue. > > It still emits the .frame, .mask and .fmask because that is Mips specific > code that does not currently know about the naked function attribute, but > that is a separate issue. > > There is also the issue of the return statement but this also a separate non > Mips specific issue and I will post that separately.
What are the use cases of naked for mips that the interrupt attribute does not handle? Including the use_shadow_register_set, keep_interrupts_masked and use_debug_exception_return attributes which MIPS backend already handles. Thanks, Andrew Pinski
