Joe Savona 7813cfa52c Fix EliminateRedundantPhi for cascading eliminated phis ...

This was the actual bug. When EliminateRedundantPhis eliminates a phi, it has to 
rewrite downstream usages of the phi id to the single operand id. We were 
correctly doing that in all but one place. When we iterate _downstream phis_, we 
were looking up the operands against the rewrite table, but not updating the phi 
operands themselves to the rewritten value. 

This fixes the bug, and incidentally fixes a test that has been broken for a 
while and nagging at me.

2023-03-08 21:10:07 -08:00

compiler

Fix EliminateRedundantPhi for cascading eliminated phis

2023-03-08 21:10:07 -08:00

S

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