[llvm-bugs] [Bug 39217] New: error: use of unknown builtin '__builtin_ia32_cvtdq2ps'

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39217

            Bug ID: 39217
           Summary: error: use of unknown builtin
                    '__builtin_ia32_cvtdq2ps'
           Product: clang
           Version: 7.0
          Hardware: PC
                OS: MacOS X
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: pawel.czarnecki at aaf.com
                CC: llvm-bugs at lists.llvm.org

The macOS binaries hosted on the llvm downloads page have this builtin missing:
__builtin_ia32_cvtdq2ps.

Building from sources on macOS also yields this problem.
Clang 6 on macOS does not have this issue. Clang 7 on linux does not have this
issue.

Test program to reproduce:


int main() {

        __attribute__((__vector_size__(4 * sizeof(int)))) int test;
        __builtin_ia32_cvtdq2ps(test);

        return 0;
}

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