Bug 1708381 Comment 18 Edit History

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Original comment by
on 
This shows the problem.  It appears to be a LICM problem.  With the loop
removed, GVN does not common up the duplicate expressions
`(i32.mul (local.get $$i) (i32.const 101))` in each arm, which is good.
But with the loop enabled all of them are lifted to the top level
(and not commoned up).
Revision 1 by
on 
This shows the problem.  It appears to be a LICM problem.  With the loop
removed, GVN does not common up the duplicate expressions
`(i32.mul (local.get $$i) (i32.const 101))` in each arm, which is good.
But with the loop enabled all of them are lifted to the top level
(and not commoned up).

(Later: I meant: run with `IONFLAGS=licm,gvn,dump-mir-expr`)

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