https://bugs.llvm.org/show_bug.cgi?id=35290
Bug ID: 35290
Summary: Unresolved external symbol in X86 inline asm after
r314493/r314494
Product: new-bugs
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: dma...@mozilla.com
CC: coby.tay...@intel.com, llvm-bugs@lists.llvm.org,
r...@google.com
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
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