[Bug target/126652] New: [17 regression ] error: conflicting declaration of ‘int64_ t vaddd_s64(int64_t, int64_t)’ with ‘C’ linkage

schwab--- via Gcc-bugs <[email protected]> Wed, 05 Aug 2026 08:07:01 +0000

Newsgroups	gmane.comp.gcc.bugs
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126652

            Bug ID: 126652
           Summary: [17 regression] error: conflicting declaration of
                    ‘int64_t vaddd_s64(int64_t, int64_t)’ with ‘C’ linkage
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: [email protected]
                CC: karmea01 at gcc dot gnu.org, rearnsha at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64-*-*

/usr/lib64/gcc/aarch64-suse-linux/17/include/arm_neon.h:5286:1: error:
conflicting declaration of ‘int64_t vaddd_s64(int64_t, int64_t)’ with ‘C’
linkage
 5286 | vaddd_s64 (int64_t __a, int64_t __b)
      | ^~~~~~~~~
/usr/lib64/gcc/aarch64-suse-linux/17/include/arm_neon.h:37:21: note: previous
declaration with ‘C++’ linkage
   37 | #pragma GCC aarch64 "arm_neon.h"
      |                     ^~~~~~~~~~~~