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 (file)
index 0000000..e5bbcd6
--- /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);
+}