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| 1 | +commit 621a3b0825d7f7ad463e8ae175db51b0ec15bcd5 (HEAD -> master) |
| 2 | +Author: Volker Braun <vbraun.name@gmail.com> |
| 3 | +Date: Sun Jun 2 14:42:31 2024 +0200 |
| 4 | + |
| 5 | + Disable sse41, sse42, avx, avx2 on 32-bit |
| 6 | + |
| 7 | + This can potentially be provided by the CPU, but will not compile |
| 8 | + since simd128_int64.inl is 64-bit only. Probably also makes not much |
| 9 | + sense to try to hardware-accelerate 64-bit on 32-bit OS. |
| 10 | + |
| 11 | +diff --git a/fflas-ffpack/fflas-ffpack-config.h b/fflas-ffpack/fflas-ffpack-config.h |
| 12 | +index a8e6cb0d..ff538bc6 100644 |
| 13 | +--- a/fflas-ffpack/fflas-ffpack-config.h |
| 14 | ++++ b/fflas-ffpack/fflas-ffpack-config.h |
| 15 | +@@ -121,13 +121,16 @@ namespace std _GLIBCXX_VISIBILITY(default) |
| 16 | + #define __FFLASFFPACK_HAVE_SSE3_INSTRUCTIONS 1 |
| 17 | + #endif |
| 18 | + |
| 19 | +-/* Define if sse4.1 instructions are supported */ |
| 20 | +-#ifdef __SSE4_1__ |
| 21 | ++/* Define if sse4.1 instructions are supported |
| 22 | ++ * Technically, sse4.1 could be supported on 32-bit but if you want to |
| 23 | ++ * accelerate 64-bit simd you should start by installing a 64-bit OS |
| 24 | ++ */ |
| 25 | ++#if defined(__SSE4_1__) && defined(__x86_64__) |
| 26 | + #define __FFLASFFPACK_HAVE_SSE4_1_INSTRUCTIONS 1 |
| 27 | + #endif |
| 28 | + |
| 29 | + /* Define if sse4.2 instructions are supported */ |
| 30 | +-#ifdef __SSE4_2__ |
| 31 | ++#if defined(__SSE4_2__) && defined(__x86_64__) |
| 32 | + #define __FFLASFFPACK_HAVE_SSE4_2_INSTRUCTIONS 1 |
| 33 | + #endif |
| 34 | + |
| 35 | +@@ -137,12 +140,12 @@ namespace std _GLIBCXX_VISIBILITY(default) |
| 36 | + #if not defined(__CYGWIN__) or not defined(__GNUC__) |
| 37 | + |
| 38 | + /* Define if avx instructions are supported */ |
| 39 | +-#ifdef __AVX__ |
| 40 | ++#if defined(__AVX__) && defined(__x86_64__) |
| 41 | + #define __FFLASFFPACK_HAVE_AVX_INSTRUCTIONS 1 |
| 42 | + #endif |
| 43 | + |
| 44 | + /* Define if avx2 instructions are supported */ |
| 45 | +-#ifdef __AVX2__ |
| 46 | ++#if defined(__AVX2__) && defined(__x86_64__) |
| 47 | + #define __FFLASFFPACK_HAVE_AVX2_INSTRUCTIONS 1 |
| 48 | + #endif |
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