[MLton-devel] preload instructions

[Henry Cejtin]

I was reading through the changelog for gcc 3.1 and read that they added code
to generate pre-load instructions for the Intel architecture.  I.e., to start
a  load going ahead of when they actually need the value.  This isn't easy to
do using the x86 instruction set because of the lack  of  registers  you  can
name to tie up with the result of the load.

I  mention  this because I would think that they wouldn't do this unless they
saw a pretty big gain.

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