[llvm-commits] [llvm] r61426 - in /llvm/trunk: lib/Target/X86/X86ISelLowering.cpp test/CodeGen/X86/bt.ll

[Eli Friedman]

On Wed, Dec 24, 2008 at 9:34 PM, Chris Lattner <sabre at nondot.org> wrote:
> +  // Lower (X & (1 << N)) == 0 to BT.
> +  // Lower ((X >>u N) & 1) != 0 to BT.
> +  // Lower ((X >>s N) & 1) != 0 to BT.
> +  // FIXME: Is i386 or later or available only on some chips?

My reference says it's 386 or later.

-Eli