[PATCH] ARM: Add @llvm.arm.space to aid ARMConstantIslands testing

[Tim Northover]

Hi Anton,

>   Does the current asm parser handle .zero inside inline asm?

Depends on what you mean by handle. I'd say no, because
GetInstrSizeInBytes tries (and fails) to be conservative: it assumes
any inline asm takes up at most "4 * # lines" bytes. That would lead
bad CodeGen failures if you tried to use it (though quite possibly no
warnings or errors about it).

Tim.