f219f81b14
Just adds the vadd instruction, but also changes the arm assembler to expose the Q registers rather than the D registers. Q0 = D1:D0 = S3:S2:S1:S0. This is similar to how ia32 and x64 use only the xmm registers for floating point. R=regis@google.com Review URL: https://codereview.chromium.org//18684008 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24982 260f80e4-7a28-3924-810f-c04153c831b5