Implement -Wtruncation=level (#931)

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* Implement -Wtruncation=level

-Wtruncation=0 is the same as the current -Wno-truncation.
-Wtruncation=2 is the same as the current -Wtruncation.
-Wtruncation=1 is the new default; it's less strict, allowing
N-bit values to be between -2**N and 2**N (exclusive).

* Implement generic "parametrized warning" system

* Test more `Wtruncation` variants

Co-authored-by: ISSOtm <eldredhabert0@gmail.com>

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Rangi

2021-10-31 17:47:31 -04:00

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parent 0ce66009c1

commit 11a6a81169

8 changed files with 267 additions and 47 deletions

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test/asm/warn-truncation.out Normal file