[LLVMdev] Status of LLVM ARM port

[kapil anand]

I have one more question regarding ARM codegen support. Is it possible to
pass a flag to Codegen to generate only ARMv5 instructions and not to use
instructions from higher versions, ( In other words, is this version
specific information present in LLVM codegen?)


Thanks

Kapil

On Fri, Oct 10, 2008 at 10:12 PM, Chris Lattner <clattner at apple.com> wrote:

>
> On Oct 10, 2008, at 2:07 PM, kapil anand wrote:
>
> > Media instructions like - parallel add and subtract, Sign/Zero
> > Extend and Add instructions seem to be missing from ARM target
> > support. These instructions are not listed in GenInstrNames.inc
>
> These would be best supported by adding builtins to llvm-gcc and
> adding intrinsics to llvm.  Some of them could be implemented as <2 x
> i16> operations as well.
>
> Any help to implement this support would be great,
>
> -Chris
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