The 64-bit backend supports printing all floats up to 64-bits. The
128-bit continues to be used for larger values.
This backend is approximately ~3x faster. Code size is a little smaller
in the full table case and much smaller if using the samll tables.
The implementation uses the same code-paths, parameterized by a set of
tables and their pow5 implementations. We continue to use the same
rounding/formatting mechanisms. Initially I explored a separate
implementation, as upstream does this and has specific optimizations for
these paths but for simplicity we don't. The performance loss is small
enough at this point and keeping them combined keeps them in sync.
Closes#19264.
- Changed `modf_result` to `Modf` to better fit naming conventions
- Reworked `modf` to be far simpler and support all floating point types (as well as vectors) (I have done benchmarks and can confirm that the performance is roughly equivalent to the old implementation)
- Added more descriptive tests for modf
- Deprecated `modf32_result` and `modf64_result` in favor of `Modf(f32)` and `Modf(f64)` respectively
Now that `-femit-docs` includes all modules, including the builtin
module, in the generated source tarball, it makes sense to apply the
same logic to the std-docs server. std-docs constructs its own tarball,
so a different approach is needed to achieve the same end result.
Closes#19403
This commit adds all modules in the compilation to the generated
`sources.tar` when using `-femit-docs` (including `std` and `builtin`).
Additionally, it considers the main module when doing so, rather than
the root module, so the behavior when running `zig test -femit-docs
test.zig` is now correct.
Notably, this improves string printing from
`@as(*[5:0]u8, &@as([5:0]u8, "hello".*))` to `@as(*[5:0]u8, "hello")`,
omitting the pointless ref-deref pair.
Legacy anon decls now have three uses:
* Type owner decls
* Function owner decls
* `@export` and `@extern`
Therefore, there are no longer any cases where we wish to explicitly
omit legacy anon decls from the binary. This means we can remove the
concept of an "alive" vs "dead" `Decl`, which also allows us to remove
the separate `anon_work_queue` in `Compilation`.
This commit also performs some refactors to `TypedValue.print` in
preparation for improved comptime pointer access logic. Once that logic
exists, `TypedValue.print` can use Sema to access pointers for more
helpful printing.
This commit also implements proposal #19435, because the existing logic
there relied on some blatantly incorrect code in `Value.sliceLen`.
Resolves: #19435
Good riddance!
Most of these changes are trivial. There's a fix for a minor bug this
exposed in `Value.readFromPackedMemory`, but aside from that, it's all
just things like changing `intern` calls to `toIntern`.
Perhaps someday, we will make Sema operate on mutable values more
generally. For now, it makes sense to split out this representation,
since it is only used in comptime pointer accesses.
There are some currently unused methods on `MutableValue` which will
be used once I rewrite the comptime pointer access logic to be less
terrible.
The commit following this one will - at long last - delete the legacy
Value representation
`Decl` can no longer store un-interned values, so this field is now
unnecessary. The type can instead be fetched with the new `typeOf`
helper method, which just gets the type of the Decl's `Value`.
