cmake SIMD test programs: avoid possible core dumps by catching SIGILL

cmake/test/test_x86_avx.cxx

@@ -1,6 +1,13 @@
+#include <signal.h>
 #include <immintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
 	__m256d x = _mm256_setzero_pd();
 	x=_mm256_addsub_pd(x,x);
 	return 0;

cmake/test/test_x86_avx2.cxx

@@ -1,6 +1,13 @@
+#include <signal.h>
 #include <immintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
 	__m256i x = _mm256_setzero_si256();
 	x=_mm256_add_epi64 (x,x);
 	return 0;

cmake/test/test_x86_avx512.cxx

@@ -1,7 +1,14 @@
 #include <stdint.h>
+#include <signal.h>
 #include <immintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
     uint64_t x[8] = {0};
     __m512i y = _mm512_loadu_si512((__m512i*)x);
     return 0;

cmake/test/test_x86_sse2.cxx

@@ -1,6 +1,13 @@
+#include <signal.h>
 #include <emmintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
 	__m128i x = _mm_setzero_si128();
 	x=_mm_add_epi64(x,x);
 	return 0;

cmake/test/test_x86_sse3.cxx

@@ -1,7 +1,14 @@
+#include <signal.h>
 #include <emmintrin.h>
 #include <pmmintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
 	__m128d x = _mm_setzero_pd();
 	x=_mm_addsub_pd(x,x);
 	return 0;

cmake/test/test_x86_sse41.cxx

@@ -1,7 +1,14 @@
+#include <signal.h>
 #include <emmintrin.h>
 #include <smmintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
 	__m128i x = _mm_setzero_si128();
 	__m128i a = _mm_setzero_si128();
 	__m128i b = _mm_setzero_si128();

cmake/test/test_x86_sse42.cxx

@@ -1,6 +1,13 @@
+#include <signal.h>
 #include <nmmintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
 	unsigned int x=32;
 	x=_mm_crc32_u8(x,4);
 	return 0;

cmake/test/test_x86_ssse3.cxx

@@ -1,7 +1,14 @@
+#include <signal.h>
 #include <emmintrin.h>
 #include <tmmintrin.h>
+
+void signalHandler(int signum) {
+    exit(signum); // SIGILL = 4
+}
+
 int main(int argc, char* argv[])
 {
+    signal(SIGILL, signalHandler);
 	__m128i x = _mm_setzero_si128();
 	x=_mm_alignr_epi8(x,x,2);
 	return 0;