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meson: try to compile a little NEON program to be sure

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Fixes #235
This commit is contained in:
Wim Taymans 2020-05-08 22:12:24 +02:00
parent e6ccc72feb
commit 011992e774
1 changed files with 30 additions and 4 deletions
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34
meson.build
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@ -100,11 +100,37 @@ have_avx2 = cc.has_argument(avx2_args)
have_neon = false
if host_machine.cpu_family() == 'aarch64'
neon_args = []
have_neon = true
if cc.compiles('''
#include <arm_neon.h>
int main () {
float *s;
asm volatile(
" ld1 { v0.4s }, [%[s]], #16\n"
" fcvtzs v0.4s, v0.4s, #31\n"
: [s] "+r" (s) : :);
}
''',
name : 'aarch64 Neon Support')
neon_args = []
have_neon = true
endif
elif cc.has_argument('-mfpu=neon')
neon_args = ['-mfpu=neon']
have_neon = true
if cc.compiles('''
#include <arm_neon.h>
int main () {
float *s;
asm volatile(
" vld1.32 { q0 }, [%[s]]!\n"
" vcvt.s32.f32 q0, q0, #31\n"
: [s] "+r" (s) : :);
}
''',
args: '-mfpu=neon',
name : 'arm Neon Support')
neon_args = ['-mfpu=neon']
have_neon = true
endif
endif