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Matt Arsenault 1789f18d3a BypassSlowDivision: Fix dropping debug info
I don't know anything about debug info, but this seems like more work
should be necessary. This constructs a new IRBuilder and reconstructs
the original divides rather than moving the original.

One problem this has is if a div/rem pair are handled, both end up
with the same debugloc. I'm not sure how to fix this, since this uses
a cache when it sees the same input operands again, which will have
the first instance's location attached.
2020-06-18 17:27:19 -04:00
..