[Bug 239266] lang/gcc8 fails to build with clang8: tree-vect-loop.c:4979:12: error: expected unqualified-id

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Jul 20 21:57:30 UTC 2019


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=239266

--- Comment #13 from Mark Millard <marklmi26-fbsd at yahoo.com> ---
(In reply to Mark Millard from comment #12)

Hmm. altivec does define vec_step as well, the AltiVec
Technology Programming Interface Manual :

https://www.nxp.com/docs/en/reference-manual/ALTIVECPIM.pdf

lists:

QUOTE
2.5.3 Value for Adjusting Pointers
At compile time, the vec_step(vec_data) produces the integer value representing
the amount by which a pointer to a component of an AltiVec data should
increment to cause a pointer increment to increment by 16 bytes. For example, a
vector unsigned short data type is considered to contain eight unsigned 2-byte
values. A pointer to unsigned 2-byte values used to stream through an array of
unsigned 2-byte values by a full vector at a time should increment by
vec_step(vector unsigned short) = 8. Table 2-3 provides a summary of the values
by data type.
END QUOTE

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