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Avoid SIMD length=127

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This commit is contained in:
Anthony Scemama 2023-01-30 16:25:02 +01:00
parent 30c3e48d91
commit 9a779f2a94
1 changed files with 10 additions and 4 deletions
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14
configure.ac
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@ -217,6 +217,7 @@ PKG_LIBS2="$PKG_LIBS2 $TREXIO_LIBS"
# Checking SIMD
AC_MSG_CHECKING([for SIMD length])
SIMD_LENGTH=1
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([],[
int simd=1;
@ -230,10 +231,15 @@ int simd=1;
simd=2;
#endif
return simd;
])],
[ SIMD_LENGTH=1 ],
[ SIMD_LENGTH=$? ],
[ SIMD_LENGTH=1 ]
])], [SIMD_LENGTH=1],
[ AS_CASE([$?],
[1], [SIMD_LENGTH=1],
[2], [SIMD_LENGTH=2],
[4], [SIMD_LENGTH=4],
[8], [SIMD_LENGTH=8],
[16], [SIMD_LENGTH=16],
[SIMD_LENGTH=1])],
[SIMD_LENGTH=1]
)
AC_MSG_RESULT([$SIMD_LENGTH])
AC_DEFINE_UNQUOTED([SIMD_LENGTH], [$SIMD_LENGTH], [Length of SIMD vectors])