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3 Commits

Author SHA1 Message Date
Jan Philipp Hafer
01d48e55a5 compiler_rt: optimize mulo 
- use usize to decide if register size is big enough to store
  multiplication result or if division is necessary
- multiplication routine with check of integer bounds
- wrapping multipliation and division routine from Hacker's Delight
 2022-02-05 01:35:46 -05:00
Andrew Kelley
3532abe0c6 compiler_rt: reorganize in a way that stage2 understands 
Before this commit, stage2 behavior tests are regressed; it cannot build
compiler-rt.
 2021-12-15 14:23:28 -07:00
Jan Philipp Hafer
eb1e75b2b8 compiler_rt: refactor __mulodi2 and __muloti2 to get __mulosi2 
- use comptime instead of 2 identical implementations
- tests: port missing tests and link to archived llvm-mirror release 80

See #1290
 2021-12-14 14:16:24 -08:00