Since this is obviously CPU dependent code, I tested it on various platforms.
There were failures only on two platforms (see 'FAIL' below); the tests
passed on all other platforms.
* Linux/glibc
x86_64: Ubuntu 22.04, Fedora 31, Debian 9.6
x86: Ubuntu 22.04, Debian 9.1
x86_64-x32: Ubuntu 22.04
alpha: Debian 5
arm: Arch
arm64: CentOS 8 Stream
hppa: Debian 12
ia64: RHEL 5
loongarch64: Debian 12
mips64 (big-endian): ABIs 32, 64
mips64 (little-endian): ABIs 32, n32, 64
powerpc64 (big-endian): ABIs 32, 64
powerpc64le: CentOS 7
riscv64: Fedora 28
s390x: ABIs 32, 64 on Debian 8
sparc64: ABIs 32, 64 on Debian 9
* Linux/glibc via QEMU user-mode
- alpha
- arm, armhf
- arm64
- hppa
- m68k: FAIL
- mips32, mips64
- powerpc, powerpc64, powerpc64-elfv2
- riscv64
- s390x
- sh4
- sparc64
* Linux/musl libc
x86_64: Alpine 3.18
x86: Alpine 3.18
arm64: Alpine 3.13
powerpc64le: Alpine 3.13
s390x: Alpine 3.13
* macOS
arm64: macOS 12.5
* FreeBSD
x86_64: FreeBSD 11.0
x86: FreeBSD 11.0
arm: FreeBSD 12.2
arm64: FreeBSD 12.2
sparc64: FreeBSD 12.2
* NetBSD
x86_64: NetBSD 8.0
x86: NetBSD 8.0
sparc: NetBSD 7.1
sparc64: ABIs 32, 64 on NetBSD 8.0
* OpenBSD
x86_64: OpenBSD 7.2
* AIX
powerpc64: ABIs 32, 64 on AIX 7.1, AIX 7.3.1
* Solaris
x86_64: ABIs 32, 64 on Solaris 10..., Solaris 11.4
except ABI 64 with cc on Solaris 10: FAIL: test-totalorderl
sparc64: ABIs 32, 64 on Solaris 10, Solaris 11.3
* Cygwin
x86_64: Cygwin 2.9.0
x86: Cygwin 2.9.0
* Native Windows
x86_64: mingw 5, MSVC 14
x86: mingw 5, MSVC 14
* Haiku
x86_64: Haiku r1beta4
* Android
arm: Android 11 (Termux)
Bruno
