Update IRBuilder to visit control flow correctly #6124
Merged
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Besides
If
, no control flow structure consumes values from the stack. Fix abug in IRBuilder that was causing it to pop control flow children. Also fix a
follow on bug in outlining where it did not make the If condition available on
the stack when starting to visit an If. This required making
push()
part ofthe public API of IRBuilder.
As a drive-by, also add helpful debug logging to IRBuilder.