1 _CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE popcount(__CLC_GENTYPE x) {
2 /* LLVM-4+ implements i16 ops for VI+ ASICs. However, ctpop implementation
3 * is missing until r326535. Therefore we have to convert sub i32 types to uint
5 #if __clang_major__ < 7 && __clang_major__ > 3 && __CLC_GENSIZE < 32
6 /* Prevent sign extension on uint conversion */
7 const __CLC_U_GENTYPE y = __CLC_XCONCAT(as_, __CLC_U_GENTYPE)(x);
9 const __CLC_XCONCAT(uint, __CLC_VECSIZE) z = __CLC_XCONCAT(convert_uint, __CLC_VECSIZE)(y);
10 /* Call popcount on uintX type */
11 const __CLC_XCONCAT(uint, __CLC_VECSIZE) res = __clc_native_popcount(z);
12 /* Convert the result back to gentype. */
13 return __CLC_XCONCAT(convert_, __CLC_GENTYPE)(res);
15 return __clc_native_popcount(x);