Brings a 30% speed boost on x86_64 even though we still process only
one block at a time for now.
Only enabled on x86_64 since the non-vectorized implementation seems
to currently perform better on some architectures (at least on aarch64).
But the non-vectorized implementation still gets a little speed boost
as well (~17%) with these changes.
* Add an optimized squaring routine under the `sqr` name.
Algorithms for squaring bigger numbers efficiently will come in a
PR later.
* Fix a bug where a multiplication was done twice if the threshold for
the use of Karatsuba algorithm was crossed. Add a test to make sure
this won't happen again.
* Streamline `pow` method, take a `Const` parameter.
* Minor tweaks to `pow`, avoid bit-reversing the exponent.
* std.fs.Dir.readFile: add doc comments to explain what it means when
the returned slice has the same length as the supplied buffer.
* introduce readSmallFile / writeSmallFile to abstract over the
decision to use symlink or file contents to store data.
Conflicts:
src/clang.zig
Master branch renamed an enum; this branch gave it an explicit tag type
and explicitly initialized values. This commit combines the changes
together.
until https://github.com/ziglang/zig/issues/6168 is implemented,
partially revert 0bd53dd2033c60d3446abfb83209237c6eb6c9e2
in order to restore the ability to use std.math in comptime functions.
Conflicts:
cmake/Findllvm.cmake
The llvm11 branch changed 10's to 11's and master branch added the
"using LLVM_CONFIG_EXE" help message, so the resolution was to merge
these changes together.
I also added a check to make sure LLVM is built with AVR enabled, which
is no longer an experimental target.
* std.fs.File.copyRange and copyRangeAll return u64 instead of usize -
the returned value is how much of the `len` is transferred, so the
types should match. This removes the need for an `@intCast`.
* fix typo that removed a subtraction
* Fix the size of codegen.AnyMCValue which gave me a compile error when
I tried to build self-hosted for i386-linux.
* restore the coercion to u64 of syms_sect.sh_info. We want to make
sure the multiplication happens with 64 bits and not the smaller type
used by the ELF format.
* fix another offset parameter in link/Elf.zig to be u64 instead of usize
* add a nice little TODO note to help out Jakub
* FmtError already has FileTooBig in it; we just need to return it.
On some distros (e.g. Void Linux) the release field of the tsname
struct may contain an underscore followed by a revision number at the
end. (e.g. 5.8.12_2).
* Correctly scan all the exponent bits, this caused the incorrect result
to be computed for exponents being powers of two.
* Allocate enough limbs to make llmulacc stop whining.
This reverts commit 70f37679035e64bacfc4807709da37bc02fbb346.
After discussion, I can see the value provided here, specifically with
avoiding the footgun of defer { suspend { free(@frame()); } }.
However the doc comments are updated to explain the semantics directly,
rather than basing them on the behavior of another programming language.
