From: Andreas Schösser <andi@ipd.info.uni-karlsruhe.de>
Date: Tue, 24 Jul 2007 14:51:25 +0000 (+0000)
Subject: Added Test Program which breaks backend
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=e1d902b818b3366587e1057b90256e2e82107c0a;p=libfirm

Added Test Program which breaks backend

[r15309]
---

diff --git a/ir/be/test/fehler51.c b/ir/be/test/fehler51.c
new file mode 100644
index 000000000..e5bbcd615
--- /dev/null
+++ b/ir/be/test/fehler51.c
@@ -0,0 +1,63 @@
+/************************************************************************
+* Program:  maxps.c
+* Function: Add 2 vectors (lying in memory) and store the result in
+*           a another vector in memory.
+*           Used as a test for the simd optimization.
+* Author:   Andreas Schoesser
+* Date:     2007-02-13
+************************************************************************/
+
+#include <stdio.h>
+#include <malloc.h>
+#include <stdlib.h>
+
+float maxps();
+float ueberlappung();
+//void vadd_loop();
+//void array_test(int *a[]);
+
+main()
+{
+	int a[5][5];
+
+	a[1][1] = 20;
+
+	printf("1. vload -> vadd -> vstore\n===================\n\n");
+	ueberlappung();
+
+	printf("2. vload -> vadd -> vstore, multi dimensional array, in loop\n==========================================\n\n");
+	//	vadd_loop();
+
+	//	array_test(a);
+}
+
+float ueberlappung()
+{
+	float a[4], b[4], c[4], d[4];
+	float a0, a1, a2, a3;
+	float b0, b1, b2, b3;
+	float c0, c1, c2, c3;
+	float sp1, sp2;
+	int i;
+
+	for(i = 0; i < 4; i++)
+	{
+		a[i] = rand() % 10;
+		b[i] = rand() % 10;
+		d[i] = rand() % 10;
+	}
+
+
+
+	// find vload 2x
+	sp1 = a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
+
+	// find vmul
+	sp2 = b[0] * d[0] + b[1] * d[1] + b[2] * d[2] + b[3] * d[3];
+
+	// Usage to prevent optimizations other than SIMD opt
+	for(i = 0; i < 4; i++)
+		printf("%d %d %d\n", a[i], b[i], c[i], d[i]);
+	printf("\n");
+	return(sp1 + sp2);
+}