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Resolve compilation bug on LoongArch platform #26067

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Merged
merged 1 commit into from
Aug 30, 2024
Merged

Resolve compilation bug on LoongArch platform #26067

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22 changes: 12 additions & 10 deletions modules/core/include/opencv2/core/hal/intrin_lasx.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -650,16 +650,18 @@ inline v_float32x8 v256_shuffle(const v_float32x8 &a)
template<int m>
inline v_float64x4 v256_shuffle(const v_float64x4 &a)
{
int imm8 = m & 0b0001; //0 or 1
if (m & 0x0b0010) imm8 |= 0b0100;
//else imm8 |= 0b0000;
if (m & 0x0b0100) imm8 |= 0b110000; //2 or 3
else imm8 |= 0b100000;
if (m & 0x0b1000) imm8 |= 0b11000000;
else imm8 |= 0b10000000;
const int m1 = m & 0b1;
const int m2 = m & 0b10;
const int m3 = m & 0b100;
const int m4 = m & 0b1000;
const int m5 = m2 << 1;
const int m6 = m3 << 2;
const int m7 = m4 << 3;
const int m8 = m1 & m5 & m6 & m7;

return v_float64x4(__lasx_xvpermi_d(*((__m256i*)&a.val), imm8));
return v_float64x4(__lasx_xvshuf4i_d(*((__m256i*)&a.val), *((__m256i*)&a.val), m8));
}

template<typename _Tpvec>
inline void v256_zip(const _Tpvec& a, const _Tpvec& b, _Tpvec& ab0, _Tpvec& ab1)
{
Expand Down Expand Up @@ -1100,7 +1102,7 @@ inline v_uint8x32 v_rotate_right(const v_uint8x32& a, const v_uint8x32& b)
template<int imm>
inline v_uint8x32 v_rotate_left(const v_uint8x32& a)
{
enum {IMM_L = (imm - 16) & 0xFF};
enum {IMM_L = ((imm - 16) & 0xFF) > 31 ? 31 : ((imm - 16) & 0xFF)};
enum {IMM_R = (16 - imm) & 0xFF};

if (imm == 0) return a;
Expand All @@ -1117,7 +1119,7 @@ inline v_uint8x32 v_rotate_left(const v_uint8x32& a)
template<int imm>
inline v_uint8x32 v_rotate_right(const v_uint8x32& a)
{
enum {IMM_L = (imm - 16) & 0xFF};
enum {IMM_L = ((imm - 16) & 0xFF) > 31 ? 31 : ((imm - 16) & 0xFF)};

if (imm == 0) return a;
if (imm > 32) return v_uint8x32();
Expand Down