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[0/5] C-SKY port v3


This is the third iteration of the C-SKY port patch set. The previous versions were posted here:

https://gcc.gnu.org/ml/gcc-patches/2018-07/msg01289.html
https://gcc.gnu.org/ml/gcc-patches/2018-07/msg01861.html

Changes since V2 are:

- The cse_cc pass is gone, replaced by a no-op move of the cc register to allow the regular CSE pass to work.

- The backend defines the new TARGET_HAVE_SPECULATION_SAFE_VALUE hook (this architecture isn't affected by speculative-execution bugs).

Same 5 pieces in the series as before:

[1] Configury
[2] Backend implementation
[3] Documentation
[4] Testsuite
[5] libgcc

-Sandra


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