diff options
Diffstat (limited to 'src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_32bit.hpp')
-rw-r--r-- | src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_32bit.hpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_32bit.hpp b/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_32bit.hpp index 758c084a46..9dfc1346e6 100644 --- a/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_32bit.hpp +++ b/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_32bit.hpp @@ -34,6 +34,7 @@ template<typename T> inline void TransformImpl<8, 1, false, 4, 4, false>::Transform(T *out, const T *in, int ldin, int y0, int ymax, int k0, int kmax) { uint32_t *outptr = (uint32_t *)out; const uint32_t *inptr = (uint32_t *)in; + bool first = true; uint32_t zerobuff[16] = { 0 }; // 8 for asm loop plus up to 7 for overflow loop @@ -57,8 +58,9 @@ inline void TransformImpl<8, 1, false, 4, 4, false>::Transform(T *out, const T * prefetch_2x(inptr7); int x=(kmax-k0); - for (;x>7;x-=8) { + for (;(x>7) || first;x-=8) { /* Cope with ragged cases by copying from a buffer of zeroes instead */ + /* 'first' forces this to always run at least once, needed if the total size is <=7. */ if ((y + 7) >= ymax) { switch ((y + 7) - ymax) { /* Everything falls through in here */ @@ -89,6 +91,14 @@ inline void TransformImpl<8, 1, false, 4, 4, false>::Transform(T *out, const T * } } + if (first) { + if (x<=7) { + break; + } + + first = false; + } + __asm __volatile ( // Load up 8 elements (2 vectors) from each of 8 sources. "LDP q0, q1, [%[inptr0]], #32\n" // q0=A0A1A2A3 |