[llvm-dev] trouble hoisting GlobalValues

Steve King via llvm-dev llvm-dev at lists.llvm.org
Fri Dec 11 16:49:31 PST 2015

On Fri, Dec 11, 2015 at 2:33 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> Also, something similar-sounding to this is done in lib/Transforms/Scalar/ConstantHoisting.cpp
>  -Hal
>> Nothing simple. One possibility would be to make constants explicitly
>> materialized. Something like:
>> https://github.com/apple/swift/blob/master/docs/SIL.rst#global-addr
>> Which would also be useful for architectures where some constants are
>> expensive to place in a register.
>> Cheers,
>> Rafael

Thanks Hal and Rafael.  The GV hoisting pass started life as a cut and
paste of ConstantHoisting.cpp.
Since there doesn't seem to be a ready solution, I'll try building in
some support.

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