[PATCH] Improved udivmodsi4 with support for ARMv4

[Renato Golin]

  Joerg,

  I'll test your patch locally and will let you know. I'm happy with the (expected) v4 and v6 performance gains, we shouldn't get much on A15 but good gain on A9.

  Tim,

  This implementation is ARM only, so M-class wouldn't use this. I think the only worry in code-size would be for v4 users, since nowadays, ARM11 systems have 256MB or more.

  cheers,
  --renato

http://llvm-reviews.chandlerc.com/D2595