[LLVMdev] LLVM ARM VMLA instruction

Renato Golin renato.golin at linaro.org
Wed Dec 18 09:59:52 PST 2013


On 18 December 2013 07:55, suyog sarda <sardask01 at gmail.com> wrote:

> I wanted to know if there is any way in which these VMLA hazards can be
> ignored and make LLVM to emit VMLA instructions? Is there any command line
> option/compiler switch/FLAG for doing this? I tried '-ffast-math' but it
> didn't work.
>

I believe the option you're looking for is: -mattr=-vmlx-forwarding

$ llc -mcpu=cortex-a9 -mattr=-vmlx-forwarding file.ll -0 file.s

cheers,
--renato
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