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Author SHA1 Message Date
Andrew Kelley
6b14c58f63 compiler-rt: simplify implementations 
This improves readability as well as compatibility with stage2. Most of
compiler-rt is now enabled for stage2 with just a few functions disabled
(until stage2 passes more behavior tests).
 2022-01-02 13:16:17 -07:00
Jan Philipp Hafer
c56663dee8 compiler_rt: add __negsi2, __negdi2, __negti2 
- use negXi2.zig to prevent confusion with negXf2.zig
- used for size optimized builds and machines without carry instruction
- tests: special cases 0, -INT_MIN
  * use divTrunc range and shift with constant offsets

See #1290
 2021-12-14 14:14:31 -08:00