sat-arithmetic: add c backend support

- modify AstGen binOpExt()/assignBinOpExt() to accept generic extended payload T
- rework Sema zirSatArithmetic() to use existing sema.analyzeArithmetic() by adding an `opt_extended` parameter.
- add airSatOp() to codegen/c.zig
- add saturating functions to src/link/C/zig.h
b9a95f2dd9Travis Staloch committed on 9/29/2021, 12:03:41 AM· committed by Andrew Kelleyparent29f4189
5 files changedLine totals unavailable