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Fix signedness for ARM Neon mask type

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vbslq_f64 and vandq_u64 both require uint64x2_t types as mask arguments,
and the Neon intrinsics do not allow for implicit conversion.

Fixes build errors with current GCC 11.2.1:

/home/abuild/rpmbuild/BUILD/netgen-6.2.2105/libsrc/core/simd_arm64.hpp:171:29: error: cannot convert '__Int64x2_t' to 'uint64x2_t'
 171 |     return vandq_u64 (a.Data(), b.Data());
This commit is contained in:
Stefan Brüns 2022-01-27 12:40:39 +01:00
parent 86fd2983c7
commit 5fce0b48b8
1 changed files with 9 additions and 4 deletions
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13
libsrc/core/simd_arm64.hpp
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@ -14,9 +14,10 @@ namespace ngcore
mask[1] = i > 1 ? -1 : 0;
}
SIMD (bool i0, bool i1) { mask[0] = i0 ? -1:0; mask[1] = i1 ? -1 : 0; }
SIMD (bool i0, bool i1) { mask[0] = i0 ? -1 : 0; mask[1] = i1 ? -1 : 0; }
SIMD (SIMD<mask64,1> i0, SIMD<mask64,1> i1) { mask[0] = i0[0]; mask[1] = i1[0]; }
SIMD (float64x2_t _data) : mask{_data} { }
// SIMD (float64x2_t _data) : mask{_data} { }
SIMD (int64x2_t _data) : mask{_data} { }
auto Data() const { return mask; }
static constexpr int Size() { return 2; }
// static NETGEN_INLINE SIMD<mask64, 2> GetMaskFromBits (unsigned int i);
@ -159,7 +160,8 @@ namespace ngcore
NETGEN_INLINE SIMD<double,2> If (SIMD<mask64,2> a, SIMD<double,2> b, SIMD<double,2> c)
{
// return { a[0] ? b[0] : c[0], a[1] ? b[1] : c[1] };
return vbslq_f64(a.Data(), b.Data(), c.Data());
uint64x2_t mask = vreinterpretq_u64_s64(a.Data());
return vbslq_f64(mask, b.Data(), c.Data());
}
NETGEN_INLINE SIMD<int64_t,2> If (SIMD<mask64,2> a, SIMD<int64_t,2> b, SIMD<int64_t,2> c)
{
@ -168,7 +170,10 @@ namespace ngcore
NETGEN_INLINE SIMD<mask64,2> operator&& (SIMD<mask64,2> a, SIMD<mask64,2> b)
{
return vandq_u64 (a.Data(), b.Data());
uint64x2_t m1 = vreinterpretq_u64_s64(a.Data());
uint64x2_t m2 = vreinterpretq_u64_s64(b.Data());
uint64x2_t res = vandq_u64 (m1, m2);
return vreinterpretq_s64_u64(res);
}
}