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Replace manual implementation with carrying_mul_add
#147666
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Thanks! It's essentially the same in LLVM, but it'll go through the intrinsic now so other backends can hopefully do the right thing if they need something else.
r=me when CI is green
(carry as $bigty); | ||
((v >> <$ty>::BITS) as $ty, v as $ty) | ||
let (lo, hi) = self.carrying_mul_add(other, other2, carry); | ||
(hi, lo) |
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Oh, interesting that this method had picked the opposite order. I guess we were all taught math in big-endian, even if it's kinda worse 🙃
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Yeah, it was not obvious at first, so it took some time to understand why tests are not passing
Oh, I can't do it 😅 so I'm worry you will need to r+ it yourself or delegate rights for this one |
@bors r=scottmcm |
…cottmcm Replace manual implementation with `carrying_mul_add` cc rust-lang#146277 (comment) r? scottmcm
Rollup of 7 pull requests Successful merges: - #146187 (Unstably constify `ptr::drop_in_place` and related methods) - #146503 (std: improve handling of timed condition variable waits on macOS) - #147421 (Add check if span is from macro expansion) - #147630 (Bitset cleanups) - #147666 (Replace manual implementation with `carrying_mul_add`) - #147669 (fix missing link to `std::char` in `std` docs) - #147673 (pretty print u128 with display) r? `@ghost` `@rustbot` modify labels: rollup
…cottmcm Replace manual implementation with `carrying_mul_add` cc rust-lang#146277 (comment) r? scottmcm
Rollup of 7 pull requests Successful merges: - #146187 (Unstably constify `ptr::drop_in_place` and related methods) - #146503 (std: improve handling of timed condition variable waits on macOS) - #147421 (Add check if span is from macro expansion) - #147630 (Bitset cleanups) - #147666 (Replace manual implementation with `carrying_mul_add`) - #147669 (fix missing link to `std::char` in `std` docs) - #147673 (pretty print u128 with display) r? `@ghost` `@rustbot` modify labels: rollup
…cottmcm Replace manual implementation with `carrying_mul_add` cc rust-lang#146277 (comment) r? scottmcm
Rollup of 12 pull requests Successful merges: - #146187 (Unstably constify `ptr::drop_in_place` and related methods) - #146503 (std: improve handling of timed condition variable waits on macOS) - #147526 (Move computation of allocator shim contents to cg_ssa) - #147630 (Bitset cleanups) - #147638 (bpf: return results larger than one register indirectly) - #147666 (Replace manual implementation with `carrying_mul_add`) - #147669 (fix missing link to `std::char` in `std` docs) - #147673 (pretty print u128 with display) - #147677 (Fewer exceptions in `span()` on parsed attributes) - #147680 (Fix ICE caused by associated_item_def_ids on wrong type in resolve diag) - #147682 (convert `rustc_main` to the new attribute parsing infrastructure) - #147683 (only check duplicates on old/unparsed attributes) r? `@ghost` `@rustbot` modify labels: rollup
Rollup merge of #147666 - Kivooeo:full_mud_add-followup, r=scottmcm Replace manual implementation with `carrying_mul_add` cc #146277 (comment) r? scottmcm
Rollup of 12 pull requests Successful merges: - rust-lang/rust#146187 (Unstably constify `ptr::drop_in_place` and related methods) - rust-lang/rust#146503 (std: improve handling of timed condition variable waits on macOS) - rust-lang/rust#147526 (Move computation of allocator shim contents to cg_ssa) - rust-lang/rust#147630 (Bitset cleanups) - rust-lang/rust#147638 (bpf: return results larger than one register indirectly) - rust-lang/rust#147666 (Replace manual implementation with `carrying_mul_add`) - rust-lang/rust#147669 (fix missing link to `std::char` in `std` docs) - rust-lang/rust#147673 (pretty print u128 with display) - rust-lang/rust#147677 (Fewer exceptions in `span()` on parsed attributes) - rust-lang/rust#147680 (Fix ICE caused by associated_item_def_ids on wrong type in resolve diag) - rust-lang/rust#147682 (convert `rustc_main` to the new attribute parsing infrastructure) - rust-lang/rust#147683 (only check duplicates on old/unparsed attributes) r? `@ghost` `@rustbot` modify labels: rollup
cc #146277 (comment)
r? scottmcm