[llvm-commits] [PATCH]Convert vmov instructions between GPR and S registers for Cortex-A9

Anton Korobeynikov anton at korobeynikov.info
Tue Aug 7 06:44:30 PDT 2012


Hello

> This patch implements a post-RA pass which converts VMOV instructions
> between GPR
> and S registers into equivalent VMOV.32 instructions, when the VMOV
> instruction is
> followed by NEON-specific instruction. The code introduced by this patch
> will also
> be useful for other similar transformations.
Can this functionality be implemented via current ExecutionDepsFix pass?
It already converts bunch of VFP instructions into NEON ones.

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University



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