shithub: amd64-simd

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corrected tests and reimplemented some functions using 6a's own instructions.

some tests were reporting wrong results when the functions didn't write to the correct memory addresses, because they were reused from the previous test. now those are reset before every run.

--- a/bench/main.c

+++ b/bench/main.c

@@ -13,6 +13,7 @@

 Point3 crossvec3_sse(Point3, Point3);

 double hsubpd(double, double);

 double fma(double, double, double);

+Point2 addpt2_sse(Point2, Point2);

 Point2 addpt2_avx(Point2, Point2);

 Point3 addpt3_avx(Point3, Point3);

@@ -232,13 +233,14 @@

 baddpt2(int fd)

 {

 	Bgr g;

-	B *b0, *b1;

+	B *b0, *b1, *b2;

 	Point2 a, b;

 	int i;

 	benchinitgr(&g, "2d point sum");

 	b0 = benchadd(&g, "addpt2");

-	b1 = benchadd(&g, "addpt2_avx");

+	b1 = benchadd(&g, "addpt2_sse");

+	b2 = benchadd(&g, "addpt2_avx");

 	while(b0->n > 0 || b1->n > 0){

 		a = Pt2(truerand()*frand(), truerand()*frand(), truerand()*frand());

@@ -251,8 +253,13 @@

 		benchin(b1);

 		for(i = 0; i < 1e6; i++)

-			addpt2_avx(a, b);

+			addpt2_sse(a, b);

 		benchout(b1);

+

+		benchin(b2);

+		for(i = 0; i < 1e6; i++)

+			addpt2_avx(a, b);

+		benchout(b2);

 	}

 	benchprintgr(&g, fd);