Subdivided Windows LLVM into llvm-gnu and llvm-msvc to distinguish between *-w64-mingw32 (aka *-pc-windows-gnu) and *-pc-windows-msvc targets.

Updated Windows AArch64 from N/A to Not tested in CI.

msys2 clang and llvm-mingw cross

To fix cross-compilation compatibility

Some platforms such as MSYS2 provide a broken libcrypto.pc, this is needed to fix statically link build.

These tests don't support MinGW

It actually works fine.

* Mark SLEEF_ALWAYS_INLINE as always_inline

@Co-Authored-By: Hamlin Li <hamlin@rivosinc.com>

* Mark Sleef_rempitabq* constants as static

Without marking it static, it fails to compile when including multiple
sleefinline_*.h into the same compilation unit.

* also mark Sleef_rempitabsp as static const

This fixes the regression from 29391ccd.

The dummy target that was removed in 29391ccd
was responsible for installing the unversioned symlink for the shared libraries.
The only part of this that was causing issue appears to be the dummy destination
that was only added as an workaround for old cmake version (pre 3.14-ish).
With the cmake version requirement bumped to 3.18 this should not be an issue anymore,
and we could also use the new NAMELINK_COMPONENT option to avoid using two install
statements.

This also fixes a bug from eb3d9778 causing
the libsleefgnuabi library to be missing the symlink...

This fixes some of the messages coming up in asan test output,
but not all of them. Same number of tests failing after this change.

* Set the CMake minimum version and project as early as possible

Also uses the standard version variables. Replaced PATCHLEVEL by
PATCH except in #define'd macros (to preserve API).

Replaced languages list with enable_language.

Removed policy options that do not affect runtime (because they
are enabled by the minimum version, anyway)

* Add SLEEF_BUILD_SHARED_LIBS to override BUILD_SHARED_LIBS from including projects.

* Remove "dummy" install targets

* Use ON/OFF for the normalized values of BUILD_SHARED_LIBS

__riscv_vcreate* appear after RVV intrinsics v0.12, and the next version
after that is v1.0 which is not yet ratified.

Nevertheless, clang-18 and up already have the support we need.

Previously the scalar library was built even with `SLEEF_BUILD_SCALAR_LIB=OFF`, and SLEEF_BUILD_SCALAR_LIB only controlled the installation.

Update supported environment now that quad, dft and inline headers are in.
Fixes #524

Previously, when fetching elements from Sleef_rempitabsp
or Sleef_rempitabdp for infinity/nan inputs, we would
hit outside the table. This would trigger a global buffer
overflow error when running any of the trig functions with
an address sanitizer.
Fixes issue #464, on multiple arch. Furthermore tester3advsimd and
tester3advsimdnofma start passing when library is build with
ASAN enabled.

Prefer use of __riscv_vcreate_*() intrinsics, where appropriate.  This
does away with piecemeal assembly of a tuple register types and ensures
that every component is defined.  It also gets rid of uninitialised
variable warnings.

__riscv_vcreate intrinsics aren't available in older toolchains but will
be available in version 1.0 of the intrinsics interface.  In the interim
include substitute macros which try to fill the gap as best as possible.

Use a regular pattern of cast-then-insert, and extract-then-cast when
dealing with tuple registers with mixed component types.

Simplify two vcreate macros in helperrvv.h, remove a few unused macros, etc..

Make the vmask types for single-precision and double-precision
interfaces compatible, so that we have fewer divergent functions.

Keep the vopmask types incompatible, because the underlying vbool*_t
types still encode some underlying assumptions about the number of lanes
involved.

Make the still-incompatible function names distinct between SP and DP,
and then reconcile these with the preprocessor at the end of the file so
that the caller still sees the expected operations.  This will help when
it comes to generating inline headers in a future revision.

Updated CHANGELOG.
Version number already bumped in CMakeLists.txt.

Copyright year and some build instructions.

Macs do not implement SVE yet and Darwin does not support it.

Add missing headers when needed.

Add SLEEF_ prefix to SLEEF-specific and user facing cmake options.
Do not overwrite BUILD_SHARED_LIBS anymore.
Udpate docs.

...on all targets

This test suite covers the usage of scalar symbols
with auto-vectorisation, to test the GNU ABI
symbols generated by SLEEF.
However, some failures are recorded when emulating
these tests using user mode QEMU, for a
cross-compile build for AArch64 and s390x.
This is because this test suite does not get called
with the EMULATOR command necessary.
This fix adds the emulator to the test command
which makes the tests pass when cross-compiling
and using user mode QEMU emulation.

AArch64 tests build with llvm cross-compiler on linux, run and pass.

PR #477 pointed out some test failures with qemu.
Re-enabling these tests in GHA and testing locally
on x86 does not show errors.

* Move sources to deployed directory docs/.
* Sync sources with shibatch/shibatch.github.io
* Update copyright line in README and html.

And minor fixes on README and website.

These can already be visualised in source or on github.

No need to maintain 2 changelogs.
Besides, the actual changelog is behind the one on the website.
Just keep CHANGELOG.md updated and remove the other one.

Add a table for supported compilers and OS-es.
Add badges linked to CI, License and SLEEF paper, Spack package, ...
Update install and build instructions.

Keep toolchain files and rename them.