[PATCH 32/59] x86: Adapt "%v" usage on clang to emit VEX enconding

[Collin Funk]

"H.J. Lu" <hjl.tools@gmail.com> writes:

>> I bisected 65 test failures to this commit. On a x86_64 Fedora 43 system
>> with the following gcc:
>>
>>     $ gcc --version | head -n 1
>>     gcc (GCC) 15.2.1 20251022 (Red Hat 15.2.1-3)
>>
>> The main ones are:
>>
>>     FAIL: math/test-fenv
>>     FAIL: math/test-fenv-clear
>>     FAIL: math/test-fenv-clear-sse
>>     FAIL: math/test-fenv-return
>>     FAIL: math/test-fenv-x87
>
> How can I reproduce these on Fedora 43?

Here is what I did:

    $ "$GLIBC_SRCDIR"/configure --prefix=/usr \
        && make -j $(nproc) \
        && make subdirs=math -j $(nproc) check

Collin