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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Unresolved external symbol in X86 inline asm after r314493/r314494"
href="https://bugs.llvm.org/show_bug.cgi?id=35290">35290</a>
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<th>Summary</th>
<td>Unresolved external symbol in X86 inline asm after r314493/r314494
</td>
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<th>Product</th>
<td>new-bugs
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>dmajor@mozilla.com
</td>
</tr>
<tr>
<th>CC</th>
<td>coby.tayree@intel.com, llvm-bugs@lists.llvm.org, rnk@google.com
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<div>
<pre>I bisected this to r314493/r314494:
$ cat yuv_row_table.cpp
extern const int kCoefficientsRgbY[1];
const int kCoefficientsRgbY[1] = {0};
int main() { return 0; }
$ cat yuv_row_win.cpp
extern const int kCoefficientsRgbY[1];
void FastConvertYUVToRGB32Row_SSE() {
__asm {
movq mm1, [kCoefficientsRgbY + 8 * eax]
}
}
$ clang-cl.exe -m32 yuv_row_table.cpp yuv_row_win.cpp
yuv_row_win-f72966.obj : error LNK2019: unresolved external symbol
kCoefficientsRgbY referenced in function "void __cdecl
FastConvertYUVToRGB32Row_SSE(void)" (?FastConvertYUVToRGB32Row_SSE@@YAXXZ)
yuv_row_table.exe : fatal error LNK1120: 1 unresolved externals</pre>
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