[llvm-commits] [llvm] r67728 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Bill Wendling]

On Mar 25, 2009, at 10:18 PM, Evan Cheng wrote:

> Hi Bill,
>
> Thanks. But shouldn't this be a target independent dag combine?
>
I'll see if it's feasible.

> Also, what's the code being generated?

The code generated before this was something like:

   mov 12(%esp), %eax
   and $2, %eax
   shr %eax
   test %eax, %eax
   je ...

Now it's just

   test $2, 12(%esp)
   je ...

> On x86, AND c + CMP 0 == TEST c, right?
>
Yes.

-bw