tree 1e0617e536118169b5cb4dd58a42fc01200ad980
parent 81d227f36b070e5ceca78d37cfe155823fb96329
author Paul Thomson <paulthomson@users.noreply.github.com> 1570536154 +0100
committer GitHub <noreply@github.com> 1570536154 +0100
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reduce: improve remove unref instr pass (#2945)

* Remove Impl struct in Reducer; we can re-add it later (in a cleaner fashion) if we need to. 
* Add cleanup passes in Reducer; needed so that removal of constants can be disabled during the main passes, and then enabled during cleanup passes, otherwise some main passes can perform worse due to lack of available constants. 
* Delete passes: remove op name, remove relaxed precision. And delete associated tests. 
* Add more tests for remove unreferenced instructions. 
* Always return and write the output file, even if there was a reduction failure. 
* Only exit with 0 if the reduction completed or we hit the reduction step limit.