[LLVMdev] [Loop Vectorize] Question on -O3

Renato Golin renato.golin at linaro.org
Tue Jul 2 04:12:32 PDT 2013

On 2 July 2013 12:00, Duncan Sands <baldrick at free.fr> wrote:

> all of the advanced LLVM optimizations assume that the IR has already been
> cleaned up already by the less advanced optimizers.  Try running something
> like -sroa -instcombine -simplifycfg first.

There could be a warning on more advanced optimizations if the
pre-requisites haven't run (as per individual call). And maybe a way to
force the dependencies to run regardless of the On level. Not sure how this
dependency system would be constructed, though.

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