import testsuite

git-svn-id: svn://mattst88.com/svn/alpha_mmintrin/trunk@3 f7d56953-e76f-4e43-a77e-20d50f6c004e

1 files changed, 108 insertions, 0 deletions

diff --git a/testsuite/maxub8.c b/testsuite/maxub8.c
new file mode 100644
index 0000000..de2a9e7
--- /dev/null
+++ b/testsuite/maxub8.c
@@ -0,0 +1,108 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <time.h>
+
+#include "../alpha_mmintrin.h"
+#include "minmax.h"
+
+#define ITERATIONS 10000
+
+int main(int argc, char ** argv[]) {
+	static uint64_t a[512], b[512];
+	static uint64_t c[512] = {0}, d[512] = {0};
+
+	uint64_t l64_0, l64_1, l64_2;
+	uint64_t *a64, *b64, *c64, *d64;
+
+	uint64_t start, end, overhead;
+	uint64_t simd_total = 0, no_simd_total = 0;
+
+	uint8_t l8_0, l8_1, l8_2;
+	uint8_t *a8, *b8, *c8;
+
+	int i, j;
+
+	start = __rpcc();
+	end = __rpcc();
+	overhead = end - start;
+
+	srand(time(NULL));
+
+	a8 = (uint8_t *)a;
+	b8 = (uint8_t *)b;
+
+	for (i = 0; i < 4096; i++) {
+		*a8 = rand() % 255;
+		*b8 = rand() % 255;
+
+		a8++;
+		b8++;
+	}
+
+	for (j = 0; j < ITERATIONS; j++) {
+		a8 = (uint8_t *)a;
+		b8 = (uint8_t *)b;
+		c8 = (uint8_t *)c;
+
+		start = __rpcc();
+
+		for (i = 0; i < 4096; i++ ) {
+			l8_1 = *a8;
+			l8_2 = *b8;
+
+			l8_0 = MAX(l8_1, l8_2);
+
+			*c8 = l8_0;
+
+			a8++;
+			b8++;
+			c8++;
+		}
+		
+		end = __rpcc() - overhead;
+		no_simd_total += end - start;
+
+		memset(c, 4096, 0);
+	}
+
+	no_simd_total /= ITERATIONS;
+
+
+	for (j = 0; j < ITERATIONS; j++) {
+		a64 = a;
+		b64 = b;
+		d64 = d;
+
+		start = __rpcc();
+
+		for (i = 0; i < 512; i++) {
+			l64_1 = *a64;
+			l64_2 = *b64;
+
+			l64_0 = __maxub8(l64_1, l64_2);
+
+			*d64 = l64_0;
+
+			a64++;
+			b64++;
+			d64++;
+		}
+
+		end = __rpcc() - overhead;
+		simd_total += end - start;
+
+		memset(d, 4096, 0);
+	}
+
+	simd_total /= ITERATIONS;
+
+	if (memcmp(c, d, 4096) == 0) {
+		printf("%s:\n", argv[0]);
+		printf("    SIMD time: %9lu nanoseconds\nnon-SIMD time: %9lu nanoseconds\n", simd_total, no_simd_total);
+	} else {
+		puts("Final arrays are not equal. Something happened.");
+	}
+	
+	return 0;
+}