On Fri, 21 Oct 2011, Aldy Hernandez wrote: > > > X32 uses x86-64 instruction set with 32bit pointers. It has the same > > > atomic support as x86-64 and has atomic support for int128. > > > > Oh, you aren't talking about 32 bit, but a 32 bit abi on a 64 bit machine. > > Thanks for pointing this out Joseph. > > The following patch handles both x86_64 and i?86, but only returns true for > LP64. Is this what you had in mind?
My understanding from the x32 discussion is that the relevant condition is "using 64-bit instructions", not "using an LP64 ABI". That might be "! ia32" in effective-target terms. -- Joseph S. Myers jos...@codesourcery.com
