jumerckx

`CC.populate_def_use_map!` doesn't work as expected.

1

MWE: ```julia using Test const CC = Core.Compiler ir, ret = only(Base.code_ircode((Int, ); optimize_until="compact 1") do x y = 2*x return y end) tpdum = CC.TwoPhaseDefUseMap(length(ir.stmts)); CC.populate_def_use_map!(tpdum, ir) @test !isempty(tpdum.data)...

Hack in metadata for MT3

4

Hello! I needed metadata and didn't want to be stuck with MT2 so I tried adding metadata support in MT3. I changed `EGraphs.make` to optionally take an expression's metadata as...