avx: simde_mm256_shuffle_pd fix for natural vector size < 128

Closes: #926 Co-authored-by: clin99 <34017491+clin99@users.noreply.github.com>

avx: simde_mm256_shuffle_pd fix for natural vector size < 128
Closes: #926 Co-authored-by: clin99 <34017491+clin99@users.noreply.github.com>
64f94c68 · Michael R. Crusoe · Michael R. Crusoe · d4140899 · 64f94c68
Commit 64f94c68 authored Oct 02, 2023 by Michael R. Crusoe Committed by Michael R. Crusoe Oct 02, 2023
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x86/avx.h x86/avx.h +2 -2

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--- a/x86/avx.h
+++ b/x86/avx.h
@@ -5136,8 +5136,8 @@ simde_mm256_shuffle_pd (simde__m256d a, simde__m256d b, const int imm8)
 #elif SIMDE_NATURAL_VECTOR_SIZE_LE(128)
  #define simde_mm256_shuffle_pd(a, b, imm8) \
      simde_mm256_set_m128d( \
-          simde_mm_shuffle_pd(simde_mm256_extractf128_pd(a, 1), simde_mm256_extractf128_pd(b, 1), (imm8 >> 0) & 3), \
+          simde_mm_shuffle_pd(simde_mm256_extractf128_pd(a, 1), simde_mm256_extractf128_pd(b, 1), (imm8 >> 2) & 3), \
-          simde_mm_shuffle_pd(simde_mm256_extractf128_pd(a, 0), simde_mm256_extractf128_pd(b, 0), (imm8 >> 2) & 3))
+          simde_mm_shuffle_pd(simde_mm256_extractf128_pd(a, 0), simde_mm256_extractf128_pd(b, 0), (imm8 >> 0) & 3))
 #elif defined(SIMDE_SHUFFLE_VECTOR_)
  #define simde_mm256_shuffle_pd(a, b, imm8) \
    SIMDE_SHUFFLE_VECTOR_(64, 32, a, b, \