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authorVadim Yanitskiy <axilirator@gmail.com>2017-04-30 19:41:56 +0700
committerVadim Yanitskiy <axilirator@gmail.com>2017-05-07 23:11:06 +0700
commit2c3066e5da54659f19799005eddb1d134c6d0166 (patch)
tree15f243c669d85acfec9308c658ae7c2491cdcf31 /.gitignore
parente604ee39cff121fdb2c6946a230bc2374929b35b (diff)
configure.ac: add SIMD detection capabilities
This change adds a check whether compiler supports some SIMD (Single Instruction, Multiple Data) instructions. It is enabled by default, and can be disabled by configure option --disable-simd. The check macro is based on the AX_EXT from autoconf-archive: www.gnu.org/software/autoconf-archive/ax_ext.html And depends on the ax_check_compile_flag macro: www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html Currently only the following SIMD extensions are being checked: AVX2, SSE3, SSE4.1, but adding others is also possible. All found extensions are being defined in the 'config.h' header. Change-Id: Idf8fff984bd936a75c7c307338df88ba4b005817
Diffstat (limited to '.gitignore')
-rw-r--r--.gitignore1
1 files changed, 1 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
index 5111b25d..2b0ca64e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@ aclocal.m4
acinclude.m4
aminclude.am
m4/*.m4
+!m4/ax_*.m4
autom4te.cache
config.cache
config.h*