<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - NEON and "error: unknown type name 'inline'" when using -std=c89"
   href="https://bugs.llvm.org/show_bug.cgi?id=46572">46572</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>NEON and "error: unknown type name 'inline'" when using -std=c89
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>7.0
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>C
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>noloader@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I'm working with a project that wishes to use -std=c89 -pedantic for
testing.[1]

Compiling a NEON source file on Aarch64 that uses vector built-ins [2], such as
vabdq_u8, results in the following. It looks like Clang disagrees with 'inline'
from <arm_neon.h>.

>From [1]:

clang blake2s.c -o blake2s -march=armv8-a -O3 -I../testvectors -Wall -Wextra
-std=c89 -pedantic -Wno-long-long -DBLAKE2S_SELFTEST

In file included from blake2s.c:19:

/usr/lib/llvm-6.0/lib/clang/6.0.0/include/arm_neon.h:433:1: error: unknown type
name 'inline'

__ai uint8x16_t vabdq_u8(uint8x16_t __p0, uint8x16_t __p1) {

^

/usr/lib/llvm-6.0/lib/clang/6.0.0/include/arm_neon.h:430:21: note: expanded
from macro '__ai'

#define __ai static inline __attribute__((__always_inline__, __nodebug__))

                    ^

/usr/lib/llvm-6.0/lib/clang/6.0.0/include/arm_neon.h:433:1: error: expected
identifier or '('

/usr/lib/llvm-6.0/lib/clang/6.0.0/include/arm_neon.h:430:28: note: expanded
from macro '__ai'

#define __ai static inline __attribute__((__always_inline__, __nodebug__))

                           ^
...


[1] <a href="https://travis-ci.org/github/noloader/BLAKE2/jobs/704535809">https://travis-ci.org/github/noloader/BLAKE2/jobs/704535809</a>
[2] <a href="https://github.com/BLAKE2/BLAKE2/blob/master/power8/blake2s.c">https://github.com/BLAKE2/BLAKE2/blob/master/power8/blake2s.c</a></pre>
        </div>
      </p>


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