== Progress ==
* Zero/sign extension elimination with widening types (TCWG-546 - 10/10)
- Re-wrote the pass from the results of experiments so far
- Fixed most of the regression failures
- 5 tests are still failing from C/C++/Fortran regression suite.
== Plan ==
* Continue with Zero/sign extension pass.
- Get bootstrapping for ARM and AArch64 working
- Fix remaining regression failures
- Add detail dumps
- Remove unnecessary copies (it is now being removed dead code
elimination pass)
- Get patch ready for upstream discussion
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