Added SSE support.

test cases/common/139 simd/meson.build

@@ -16,6 +16,17 @@ cdata = configuration_data()
 #
 # and then have a target that uses the result in links_with.
 
+# The following headers need to be added. Also Thumb and Altivec.
+#<emmintrin.h> SSE2
+#<pmmintrin.h> SSE3
+#<tmmintrin.h> SSSE3
+#<smmintrin.h> SSE4.1
+#<nmmintrin.h> SSE4.2
+#<ammintrin.h> SSE4A
+#<wmmintrin.h> AES
+#<immintrin.h> AVX
+#<zmmintrin.h> AVX512
+
 simdlibs = []
 
 if cc.has_argument('-mmmx')
@@ -23,6 +34,11 @@ if cc.has_argument('-mmmx')
   simdlibs += static_library('simd_mmx', 'simd_mmx.c', c_args : '-mmmx')
 endif
 
+if cc.has_argument('-msse')
+  cdata.set('HAVE_SSE', 1)
+  simdlibs += static_library('simd_sse', 'simd_sse.c', c_args : '-msse')
+endif
+
 configure_file(output : 'simdconfig.h',
   configuration : cdata)
 

test cases/common/139 simd/simd_mmx.c

@@ -1,3 +1,6 @@
+#include<simdconfig.h>
+#include<simdfuncs.h>
+
 #include<mmintrin.h>
 #include<cpuid.h>
 #include<stdint.h>

test cases/common/139 simd/simd_sse.c

@@ -0,0 +1,17 @@
+#include<simdconfig.h>
+#include<simdfuncs.h>
+
+#include<xmmintrin.h>
+#include<cpuid.h>
+#include<stdint.h>
+
+int sse_available() {
+    return __builtin_cpu_supports("sse");
+}
+
+void increment_sse(float arr[4]) {
+    __m128 val = _mm_load_ps(arr);
+    __m128 one = _mm_set_ps1(1.0);
+    __m128 result = _mm_add_ps(val, one);
+    _mm_storeu_ps(arr, result);
+}

test cases/common/139 simd/simdchecker.c

@@ -12,12 +12,18 @@ int main(int argc, char **argv) {
     const float expected[4] = {3.0, 4.0, 5.0, 6.0};
     void (*fptr)(float[4]) = NULL;
     const char *type;
+    int i;
 
+/* Add here. The first matched one is used so put "better" instruction
+ * sets at the top.
+ */
 #if HAVE_SSE
-    /* Add here. The first matched one is used so put "better" instruction
-     * sets at the top.
-     */
-#elif HAVE_MMX
+    if(fptr == NULL && sse_available()) {
+        fptr = increment_sse;
+        type = "SSE";
+    }
+#endif
+#if HAVE_MMX
     if(fptr == NULL && mmx_available()) {
         fptr = increment_mmx;
         type = "MMX";
@@ -29,7 +35,7 @@ int main(int argc, char **argv) {
     }
     printf("Using %s.\n", type);
     fptr(four);
-    for(int i=0; i<4; i++) {
+    for(i=0; i<4; i++) {
         if(four[i] != expected[i]) {
             printf("Increment function failed, got %f expected %f.\n", four[i], expected[i]);
             return 1;