use more accurate words.

6 files changed, 6 insertions, 6 deletions

diff --git a/numpy/core/src/common/simd/avx2/arithmetic.h b/numpy/core/src/common/simd/avx2/arithmetic.h
index c4c5f2093..4b8258759 100644
--- a/numpy/core/src/common/simd/avx2/arithmetic.h
+++ b/numpy/core/src/common/simd/avx2/arithmetic.h
@@ -157,7 +157,7 @@ NPY_FINLINE double npyv_sum_f64(npyv_f64 a)
     return _mm_cvtsd_f64(sum);
 }
 
-// extend sum across vector
+// expand the source vector and performs sum reduce
 NPY_FINLINE npy_uint16 npyv_sumup_u8(npyv_u8 a)
 {
     __m256i four = _mm256_sad_epu8(a, _mm256_setzero_si256());
diff --git a/numpy/core/src/common/simd/avx512/arithmetic.h b/numpy/core/src/common/simd/avx512/arithmetic.h
index a6e448bae..450da7ea5 100644
--- a/numpy/core/src/common/simd/avx512/arithmetic.h
+++ b/numpy/core/src/common/simd/avx512/arithmetic.h
@@ -192,7 +192,7 @@ NPY_FINLINE __m512i npyv_mul_u8(__m512i a, __m512i b)
     }
 #endif
 
-// extend sum across vector
+// expand the source vector and performs sum reduce
 NPY_FINLINE npy_uint16 npyv_sumup_u8(npyv_u8 a)
 {
 #ifdef NPY_HAVE_AVX512BW
diff --git a/numpy/core/src/common/simd/neon/arithmetic.h b/numpy/core/src/common/simd/neon/arithmetic.h
index af34299a0..69a49f571 100644
--- a/numpy/core/src/common/simd/neon/arithmetic.h
+++ b/numpy/core/src/common/simd/neon/arithmetic.h
@@ -159,7 +159,7 @@
     }
 #endif
 
-// extend sum across vector
+// expand the source vector and performs sum reduce
 #if NPY_SIMD_F64
     #define npyv_sumup_u8  vaddlvq_u8
     #define npyv_sumup_u16 vaddlvq_u16
diff --git a/numpy/core/src/common/simd/sse/arithmetic.h b/numpy/core/src/common/simd/sse/arithmetic.h
index fcb0a1716..c21b7da2d 100644
--- a/numpy/core/src/common/simd/sse/arithmetic.h
+++ b/numpy/core/src/common/simd/sse/arithmetic.h
@@ -188,7 +188,7 @@ NPY_FINLINE double npyv_sum_f64(npyv_f64 a)
 #endif
 }
 
-// extend sum across vector
+// expand the source vector and performs sum reduce
 NPY_FINLINE npy_uint16 npyv_sumup_u8(npyv_u8 a)
 {
     __m128i two = _mm_sad_epu8(a, _mm_setzero_si128());
diff --git a/numpy/core/src/common/simd/vsx/arithmetic.h b/numpy/core/src/common/simd/vsx/arithmetic.h
index 339677857..7c4e32f27 100644
--- a/numpy/core/src/common/simd/vsx/arithmetic.h
+++ b/numpy/core/src/common/simd/vsx/arithmetic.h
@@ -142,7 +142,7 @@ NPY_FINLINE double npyv_sum_f64(npyv_f64 a)
     return vec_extract(a, 0) + vec_extract(a, 1);
 }
 
-// extend sum across vector
+// expand the source vector and performs sum reduce
 NPY_FINLINE npy_uint16 npyv_sumup_u8(npyv_u8 a)
 {
     const npyv_u32 zero = npyv_zero_u32();
diff --git a/numpy/core/tests/test_simd.py b/numpy/core/tests/test_simd.py
index 3efd328da..1d1a111be 100644
--- a/numpy/core/tests/test_simd.py
+++ b/numpy/core/tests/test_simd.py
@@ -750,7 +750,7 @@ class _SIMD_ALL(_Test_Utility):
 
     def test_arithmetic_reduce_sumup(self):
         """
-        Test overflow protect reduce sumup intrinics:
+        Test extend reduce sum intrinics:
             npyv_sumup_##sfx
         """
         if self.sfx not in ("u8", "u16"):