load: load after store reduction
load: load after store reduction

Implement reduction of loads that are statically decidable to read the value
of a previous store operation.

Signed-off-by: Helge Bahmann <c5618920f622561f9c0ec5c42219c4c08180149f@chaoticmind.net>

phate/jive,phate/jive,phate/jive