[PATCH] ARM/NEON: Improve codegen for long sext/zext operations.

[Renato Golin]

On 15 March 2013 06:43, Pete Couperus <pjcoup at gmail.com> wrote:

> The ARM backend currently has poor codegen for long sext/zext
> operations, such as v8i8 -> v8i32.
> This patch addresses this by performing a custom expansion in
> ARMISelLowering.
> This partially addresses PR14867 (
> http://llvm.org/bugs/show_bug.cgi?id=14867).
>

Hi Pete,

Great patch, thanks! And lots of test cases, which is always great.

Can you also update the cost of sign/zero extend in ARMTTI?

cheers,
--renato
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